PT86408B - PACKAGING OF TWO METHODS OF DISTRIBUTION AND STORAGE OPERATION INCLUDING A SELF-SEALING DISTRIBUTION VALVE FOR PROVIDING AN AUTOMATIC CLOSURE AND INVERTED STORAGE RESISTANT TO DRAINAGE - Google Patents

Abstract

The package has a first mode of operation capable of storing the fluid material without leakage when the package is subjected to unintentional external forces. A second mode of operations capable of dispensing the fluid material when the package is subjected to external forces intentionally applied by the user. The second mode of operation is capable of dispensing the fluid material through a discharge orifice in response to manually applied force and of automatically ceasing the dispensing operation when the applied forces are removed. The package is also resistant to leakage in the second mode of operation when stored with its discharge orifice downwardly oriented intermediate dispensing cycles.

Description

APPLICANT: THE PROCTER & GAMBLE COMPANY, North American, (State of Ohio), headquartered at One Procter & Gamble Plaza, Cincinnati, State of Ohio, United States of America.

EPIGRAPH: PACKAGING OF TWO MODES OF OPERATION OF

DISTRIBUTION AND STORAGE THAT INCLUDES A SELF-SEALING DISTRIBUTION VALVE TO PROVIDE AUTOMATIC CLOSING AND INVERTED STORAGE RESISTANT TO EMPTY MENTION

INVENTORS:

Claim of the right of priority under Article 4 of the Paris Convention of March 20, 1883. United States of America on December 19, 1986 under no. 944,632.

INP1. MOO. 113 RF 1873?

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-SUMMARY PACKAGE OF TWO MODES OF DISTRIBUTION AND STORAGE OPERATION THAT INCLUDES A SELF-SEALING DISTRIBUTION VALVE TO PROVIDE AUTOMATIC CLOSING AND INVERTED STORAGE RESISTANT TO EMPTYING

Mod. 71 - 10,000 θχ. - 4-86

A flexible distribution and storage package for fluid material is described. The package has a first mode of operation capable of storing fluid material without emptying when the package is subjected to unintended external forces and a second mode of operation capable of distributing fluid material when the package is subjected to external forces intentionally applied by the user . The second mode of operation is capable of distributing the fluid material through a discharge orifice, in response to forces applied manually and is capable of automatically ceasing the distribution operation when the forces applied manually are no longer exerted. The packaging is also resistant to emptying when stored with its discharge hole oriented downwards between distribution cycles.

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Description of the object of the invention that

THE PROCTER & GAMBLE COMPANY, North American, (Ohio State), in dustrial, with headquarters at One Procter & Gamble Plaza, Cincinnati, Ohio State, United States of America, intends to obtain in Portugal, PACKAGING OF TWO MODES OF FUNCTION OF DISTRIBUTION AND STORAGE GEM INCLUDING A SELF-SEALING DISTRIBUTION VALVE TO PROVIDE AN AUTOMATIC CLOSING AND AN INVERTED STORAGE RESISTANT TO EMPTYING this invention refers to a package for storing and distributing various fluids or fluidized materials.

The present invention also relates to such a package that has a first mode of operation capable of storing said fluid or fluidized material without its emptying when the package is subjected to unintentionally applied stereo forces, in particular forces applied suddenly, and a second method of functionally capable of delivering fluid or fluidized material when the package is subjected to external forces intentionally applied by the user.

The present invention also relates to a package for storing and distributing viscous fluid materials, such as shampoos, soaps, detergents and the like in

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Mod. 71 - 10,000 ex. - 4-86 according to the operating mode without having to remove or manipulate the closing element normally used to prevent drying or loss of the package contents in the interval of the distribution cycles »

The present invention relates in particular to a flexible package with a dispensing valve which, in the second mode of operation, will open to discharge the contents of the package at a predetermined limit pressure when forces external to the package are applied, but which will close spontaneously when external forces are removed from the packaging. As long as the valve remains closed below the limit pressure chosen in the second mode of operation, the package can be handled without inadvertently discharging and can be stored in an inverted manner, if desired. »The present invention also refers to a flexible package in which the distribution valve in the first operating mode is provided with retention means to resist resistance to the discharge of fluid material through the valve when the package is subjected to unintentionally applied external forces such as strikes on compressive loads.

In a particular embodiment, the present invention relates to a package that includes a dispensing valve sealingly attached through the discharge port of the flexible package.

The dispensing valve includes an internal passage that places the interior of the container container area in fluid communication with the interior surfaces of the valve, the packaging further comprising retaining means to prevent the internal passage from closing on its own when the packaging it is subject to sudden external forces and applied unintentionally.

Finally, the present invention relates to an emba-2-

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Mod. 71 - 10 000 ex. - 4-86, which includes a deflector oriented essentially perpendicular to the axis of the internal passage of the valve, the deflector being fixed in a position such that any fluid material that approaches the interior surfaces of the valve, coming from inside the container has impact and be redirected around the deflector before reaching the inner surfaces of the valve. The deflector reduces the severity of the impact load applied by the fluid material to the interior surfaces of the valve.

The use of discharge nozzles that close themselves in packages to distribute fluids is generally known in the art. For example, U.S. Patent 2,071,657, issued to Richardson on February 25, 1937 describes an articulated tube using a self-closing mouthpiece that uses a pair of self-closing jaws.

The jaws, which are open to form an orifice in response to the pressure of the fluid material, close the discharge end of the tube when the pressure of the fluid material inside the container is relieved.

Another exemplary structure of this type is illustrated in U.S. Patent 3,506,163 issued to Ranh et al., April 14, 1970. The patent issued to Ranh et al. Describes an articulated container for fluidizable material The container comprises a generally closed tube which opens automatically in response to the increase <3 ri C 73 Τ 'C 5' 5 Í3 c at the bottom of the container. At the end of the distribution cycle of any product, the tube automatically assumes its closed position, thus keeping the fluidizable material inside the container out of contact with the atmosphere, as well as preventing the container from expanding to its initial volume. The Ranh et al. Container is progressively compressed as the flowable material is distributed.

Packaging with self-adjusting adaptations that eliminate

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Mod. 71 - 10,000 ex. 4-86 The need for conventional closure in the range of distribution cycles is also generally known in the industry. For example, U.S. Patent 2,175.05 issued to Bull and others on October 3, 1939, describes a dispensing closure device for adapting to containers for materials such as toothpaste, shaving cream, etc. to which it is applied. an internal pressure to discharge its contents.

Another prior art closure container of the self-sealing type is described in U.S. Patent 1,825,553, issued to Smith on September 29, 1931 · Smith describes a compressible tube that is preferably soft and flexible and can serve as a receptacle for toothpaste, shaving cream, paste or other viscous substances. To extract the contents of the tube, Smith describes that it is only necessary, after removing the cap, to apply pressure to the tube and this pressure will force the contents of the tube against the top of the closing device cavity and cause the valve it slits to open and allows the contents of the tube to come out, as shown in Figure 3. When the pressure in the tube is released, the elasticity of the closing element supposedly forces the phenomena to close tightly and prevents any further extrusion of the content.

A greatly improved self-sealing fluid or fluidized material distribution package is described in English Patent Application No. 2.I58,049A, published on 6 November 1985 in the name of James Lee Drobish and Leo Edward Taske and entitled SELF-SEALING DISTRI BUTÇÂO VALVE, this patent being incorporated by reference. The aforementioned English patent describes an elastically deformable container that has at least one discharge port. The orifice comprises an elastically deformable diaphragm that has an area that is generally concave in shape. The valve

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Mo d. 71 - 10,000 θχ. · 4-86 is sealingly attached to the container, through its hole. The diaphragm valve is oriented in such a way that it is usually concave inwardly in relation to the container. The region of the concave diaphragm valve comprises at least one groove, which preferably passes through the center of the container discharge port, in a substantially straight line. The discharge port preferably comprises a container neck and the concave area of the diaphragm valve is preferably composed of a resistant material with a low curvature modulus, such as silicone rubber, polyvinyl chloride. , urethane, ethylene vinyl acetate, styrene butadiene copolymer and the like. The elastically deformable container is preferably composed of an elastic material with a somewhat higher curvature modulus such as polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate or the like.

In a description of a particularly preferred embodiment of the Drobish and Taske packaging, a spring-loaded auxiliary sealing element that has a dimension and shape that substantially coincides with the outermost surface of the concave-shaped zone of the valve is used in an attempt to prevent the valve from being actuated or opened in a concave manner until the distribution and storage packaging has been delivered and put into service by the consumer. In an alternative embodiment, the diaphragm valve is supplied to the consumer without a groove and instructions are given to the consumer on how to practice the crack by means of a knife or razor blade. In yet another embodiment, a weakening line is provided in the diaphragm valve in such a way that when the hand is applied to the valve by the consumer, the weakening line breaks to form a crack in the concave region of the valve. valve.

518 CEZ 1987

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Although the distribution and storage packaging of the type described in the aforementioned English patent applications by Drobish and Taske work admirably well once they reach the consumer, some difficulties have been experienced in ways of making packaging using pre-cut valves . In particular, unintended product discharges have been observed when packaging is subjected to sudden impact loads and / or compressive loads during transport, such as when a product box is dropped or subjected to a stapling operation storage or shipping operation. The impact and / or compressive loads that occur during transport or handling are often sufficient to cause the pre-cut valves to undergo a momentary inversion, thereby dislodging the auxiliary sealing element and discharging a quantity of product through the valve . This will damage and dirty the packaging and shipping carton before it even reaches the dealer. This unintentional unloading of a product from a nearby packaging or even in adjacent shipping boxes, thus aggravating the severity of the loss.

Although it is believed that this premature discharge of product can be avoided in most cases by shipping the packages without previously cutting the groove or grooves in the concave area of the valve, this means that the consumer has so much to cut the area concave to create the groove how to break the zone in a concave shape along a predetermined weakening line. These attempts are not only inconvenient for the consumer, but also if the valve cut or burst operation is not carried out properly, they can destroy the highly desirable operating characteristics of the valve.

Consequently, it is an object of the present invention to provide a package for the distribution and storage of fluid or fluidizable material that preserves the

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Mod. 71 - 10,000 βχ. - 4-66 advantages of the flexible distribution and storage packaging described in the aforementioned English patent application by Drobish and Taske, but which still solves the aforementioned problems of inadvertent product discharge, particularly during handling and transportation operations.

It is yet another object of the present invention to provide a distribution and storage package, having two modes of operation, for fluid or fluidizable material, said package having a first mode of operation capable of storing said fluid or fluidizable material without spillage when the package it is subjected to external forces applied unintentionally, and a second mode of operation capable of distributing the fluid or fluidized material when the package is subjected to external forces applied intentionally by the user.

It is another object of the present invention to provide such a distribution and storage package of two modes of operation in which the second mode of operation is capable of automatically substantially isolating all the fluid or fluidizable material remaining in the package from the ambient atmosphere immediately. that external forces intentionally applied by the user are removed from the package, even when the package is stored with its discharge hole oriented downwards between distribution cycles.

It is yet another object of the present invention to provide a two-way distribution and storage package that, in its second mode of operation, allows distribution with one hand of the fluid or fluidized material whenever the package is sufficiently tightened. to reach the pressure inside the container above the opening limit pressure

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Mo d. 71 · 10,000 θχ. - 4-86 of the valve.

It is another object of the present invention to provide a package that automatically ceases the dispensing operation as soon as the clamping forces are removed from the package.

It is yet another object of the present invention to provide a two-way distribution and storage package that is simple and economical to manufacture and yet highly reliable for its intended purpose.

In a particularly preferred embodiment the present invention comprises a flexible distribution and storage package of two operating modes for fluid or fluidized material. The package has a first mode of operation capable of storing the fluid or fluidized material without spillage when the package is subjected to unintentionally applied external forces and a second mode of operation capable of distributing the fluid or fluidized material whenever the package is subject to external forces intentionally applied by the user. In the second mode of operation the package is able to distribute the fluid or fluidized material through a discharge orifice in response to forces applied manually and to automatically cease the dispensing operation whenever forces applied manually are removed. The packaging, in its second mode of operation, is also resistant to spillage when stored with its discharge hole _or oriented downwards in the interval of the distribution cycles.

A distribution and storage package according to the present invention preferably comprises an elastically deformable container for housing the fluid or fluidizable material. The container, comprising

-818 DEC.19B7

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Mod. 71 - 10,000 βχ. - 4-86 a discharge orifice, reveals a degree of flexibility sufficient to allow its deformation in response to manual forces applied to it and a degree of elasticity sufficient to automatically return to its undeformed condition whenever the forces applied manually are removed .

A self-sealing distribution valve that, in the second operating mode, opens at a predetermined limit pressure that is greater than the maximum hydraulic main pressure of the fluid material in the container when the orifice is oriented downwards is fixed through the discharge orifice of the container. The valve has a centrally located portion composed of elastic material and reveals a predetermined concave shape when in a substantially decompressed condition. The centrally located concave valve region is sealingly fixed around its periphery to an end of an elastic annular side wall zone of the valve. The elastic annular side wall zone of the valve defines an internal passage that places the inner surface of the valve's concave shape in fluid communication with the interior of the elastically deformable container.

The other end of the elastic annular side wall zone of the valve is sealingly fixed around its periphery through the discharge port of the container with the valve oriented in relation to the discharge port so that the zone located in the center of the valve is concave inward when the container is in an undeformed condition.

The elastic, concave-shaped zone of the valve comprises at least one substantially linear groove that extends through its thickness, from its inner surface to its outer surface. In the second mode of operation of the packaging, the concave area of the valve reveals an ability to withstand a

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Mod. 71 - 10,000 ΟΧ. - 4-86 invasion from a concave inward position, sealed and resistant to spillage to an open, convex outward and unsealed position, whenever the forces applied tnanually increase the fluid pressure inside the container beyond the pressure opening ^, imitate the valve.

fluid material is discharged from the container in said second mode of operation through the groove or grooves in the valve whenever the forces manually applied to the container reach its internal pressure above the limit opening pressure of the valve. The valve also has the capacity to automatically stop the discharge of fluid material, returning to a concave inward position, sealed and resistant to spillage, whenever the manually applied forces are removed from the container.

the present invention in the first mode of operation comprises valve retaining means to prevent the concave region of the valve from being reversed when the package is subjected to accidentally applied external forces, in particular external forces suddenly applied. The valve retaining means preferably comprise first peripheral retaining means for applying a compressive force oriented radially around the periphery of the concave region of the valve. These first peripheral retention means tend to place the valve concave region in a condition of radial compression whenever a package according to the present invention is in its first mode of operation. The valve retaining means further comprise second outer surface retaining means that substantially coincide with at least a portion of the outer surface of the concave region of the valve.

Together, the first peripheral retaining means and the second outer surface retaining means

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Mod. 71 - 10,000 βχ. - 4-86 res avoid inverting the zone of the concave shape of the valve whenever the said packaging is in its first operating mode. The fluid pressure applied at the point of union between the concave zone of the valve and the annular side wall zone of the valve is resisted by the radially oriented compressive force applied by the first peripheral retaining means, while the fluid pressure applied against the inner surface of the concave region of the valve is resisted by the second outer surface retaining means.

In addition to the valve retaining means described in the preceding paragraphs, a distribution and storage package for two modes of operation according to the present invention, comprises annular sidewall retaining means. The maximum fluid pressure loads applied against the interior surfaces of the valve may tend to distort and close the annular side wall zone of the valve within its internal passage. In addition, if the valve fixing element is subjected to excessive torsional force when applied to the container, the valve fixing edge can be compressed and distorted out of its desired position. This distortion and collapse can, in extreme cases, dislodge the valve from its fixing element. This tendency to close the annular sidewall section of the valve is resisted by annular sidewall retaining means according to the present invention. In contrast to the valve retaining means described in the previous paragraphs, the annular sidewall retaining means are functional in both the first and the second mode of operation of the package.

The annular sidewall retaining means preferably comprises an annular cylindrical member having an outer diameter substantially equal to that of the

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Mod. 71 - 10,000 ex. - 4-86 inside diameter of the internal valve passage. The annular sidewall retaining means are preferably fixed in a stable relationship to the discharge port of the container so that they extend through the internal passage formed by the annular sidewall area of the valve in the sealing area between the valve and the discharge hole of the container.

In an especially preferred embodiment according to the present invention, the distribution and storage package of two modes of operation further comprises a deflector oriented substantially perpendicular to the axis of the internal passage of the valve. The baffle is preferably secured in a fixed relationship to the discharge port of the container in the fluid communication path between the inner surface of the valve's concave foaming area and the inner part of the container. The baffle is preferably positioned in such a way that any fluid material that approaches the inner surface of the valve's concave shape from the inside of the container must hit and be redirected around the baffle before reaching the inner surface. of the concave shape of the valve. This greatly reduces the severity of any impact applied by the fluid material to the inner surface of the valve's concave zone.

In a particular embodiment of the present invention, the aforementioned baffle is secured to the annular sidewall retaining means to prevent the annular sidewall portion of the valve from closing in its internal passage. Although the description completed with the claims, marking in a particular way and distinctly claiming the present invention, it is believed that the present invention will be better understood from the description. below with the accompanying drawings, in which:

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Figure 1 is a simplified partial cross-sectional view of a particularly preferred embodiment of a distribution and storage package for two modes of operation, according to the present invention, with the valve retaining means represented in the second mode packaging operation;

Figure IA is a fragmentary and simplified perspective view of a distribution and storage package of two modes of operation of the type shown in Figure 1;

Figure 2 is a simplified partial cross-sectional illustration of the distribution and storage package of the two modes of operation of Figure 1, with the valve retaining means represented in the first mode of operation of the package;

Figure 2A is a greatly enlarged view of the insert 2A shown in Figure 2;

Figure 2B is a greatly enlarged view of the insert 2B shown in Figure 2;

Figure 2C is a greatly enlarged view, similar in general to that of Figure 2B, but representing an alternative embodiment of a valve retaining element which is intended to allow greater valve flexibility when the package is subjected to a sudden impact or accidentally applied compressive loads;

Figure 3 is a simplified partial cross-sectional illustration of the distribution and storage package of two modes of operation of Figure 2 which illustrates the initial effect of the deflector when a movement of the fluid material caused by a sudden increase in pressure inside the container;

Figure k is an illustration of a simplified partial cross-section, generally similar to Figure

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3, but which illustrates the situation that is created when fluid material fills the interior of the valve in response to the sudden increase in pressure inside the container.

Figure 4a is a greatly enlarged view of the insertion ’ιΑ shown in Figure 4;

Mod. 71 - 10,000 et. - 4-06

Figure 5 is a simplified perspective view of the distribution and storage package of two modes of operation of Figure 1 suspended in an inverted position from a fixed support such as a towel rack, that view representing the package in its second mode of operation;

Figure 6 - is a greatly enlarged partial cross-sectional view of the package of Figure 5 taken through section line 6-6 of Figure 5, said package being represented before any external forces are applied to the container.

Figure 7 is a view generally similar to that of Figure 6, but illustrating the condition of the package and the valve when the limit pressure of the valve has been exceeded by the fluid material inside the container and the fluid material is in the process of being distributed ;

Figure 8 is a view generally similar to that of Figure 7, but illustrating the condition of the package and the valve immediately after the externally applied forces have been removed from the container and the valve has automatically returned to its concave inward position, sealed and resistant to spill;

Figure 9 θ a Partial cross-sectional illustration of an alternative packaging for distribution and storage of two operating modes according to the present invention in which the valve retaining means are secured in position by means of corresponding screw threads ;

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Figure 10 is a partial cross-sectional illustration of yet another embodiment of a distribution and storage package for two modes of operation according to the present invention; and

Figure 11 is a partial, perspective view of a distribution and storage package for two modes of operation, in accordance with the present invention, that package comprising ventilation means for the air that would otherwise be trapped between the zone concave of the valve and the innermost surface of the valve retaining element whenever the valve retaining element is in its completely closed position,

Figure 1 is a cross-sectional, partial and greatly enlarged view of a particularly preferred embodiment of a distribution and storage package for two modes of operation 10, according to the present invention. The illustrated package preferably comprises an elastically deformable container 12, such as a blow-molded plastic bottle made of any of several materials well known in the art, for example, polypropylene, polyethylene, polyvinyl chloride or the like. The particular construction material chosen for any given application will, in general, be determined by factors such as product compatibility, cost, permeability and the like. The critical parameter is that the elastically deformable container 12 reveals a degree of flexibility sufficient to allow manual deformation of the container to extrude the product through the dispensing valve 60, and a sufficiently strong pre-arrangement to return to its undeformed condition when remove the external forces that will create a substance instantaneous pressure drop inside the container. This substantial drop in internal pressure helps to close the delivery valve

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Mocf. 71 - 10,000 ex. - 4-86 self-sealing 60 in use.

In the embodiment illustrated in Figure 1, the elastically deflatable container 12 comprises a plastic bottle having a neck 19 that forms a discharge hole 22 along its inner surface. The lowest area of the container 12 is preferably provided with some type of feature that will allow the container to be invertedly suspended from a support element, such as a 5θ towel rail, as represented by a generally in Figure 5 · In the embodiment shown in Figure 5, it takes the form of a recessed notch 17 having the general shape of a hook. It is evident that it is recognized that the particular means employed to suspend the container 12 in an inverted position in use, can be integral with the container or applied as an external adaptation, for example, as a rotatingly secure hook to the bottom of the container. The particular means chosen will be determined by the particular considerations of use.

As an alternative to suspending the container in an inverted position, the container could be provided with a jacket designed to allow the container to be kept in an inverted position. In yet another embodiment, the container could be provided with an extended bottom wall that will form a collapsed base to hold the container on a horizontal surface, and the dispensing valve 60 located on the bottom wall of the container. Whichever means are chosen, storing the container with the dispensing valve ÓO at its lower end not only eliminates time to drain the product from one end of the container to the other during delivery, but also facilitates the complete emptying of the contents of the container.

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As can be seen from Figure 1, the neck region 19 of the container 12 is preferably provided with suitable fastening means, such as a helical thread 20, which, in conjunction with a complementary helical thread 35 in the valve fixing 28, can be used to fix the valve fixing element to the neck 19 of the container 12. The particular fastening means between the valve fixing element 28 and the neck of the container 19 are not critical and they may comprise, for example, a spring joint, a welded joint and an adhesive-bonded joint or even an integral formation.

The delivery valve 60 preferably comprises a concave shape zone 61 sealingly fixed around the entire periphery to an end of an annular side wall zone 62 which can be of uniform or variable diameter and thickness throughout its length. In the embodiment illustrated in Figure 1, the annular side wall zone 62 is of variable diameter along its length and consists of a tapered zone 63 and a substantially straight wall zone 64. The end of the side wall ring 62 which is not concave in the region 61 preferably comprises an edge that extends outwardly 65. The edge 65 θ, preferably thick, that increases at some intermediate point of its intersection with the right wall zone 64 of the annular side wall 62 and its outer edge In the embodiment illustrated in Figure 1, the edge tapers from a minimum thickness at its point of intersection with the right wall zone 64 of the annular side wall 62 for a maximum thickness on its outermost edge. The tapered thickness of the rim 65 assists in maintaining the 6θ valve fixed through the discharge port 22 of the container 12. In particular, the valve fixing element 28 comprises an inwardly protruding edge

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30, the lowest surface of which comprises a complementary taper that increases to a maximum thickness at its innermost and lowest edge 31. When the valve 60 and the valve fixing element 28 are mounted as shown in Figures 1, IA , 2 and 2A, the upper surface of the tapered edge 65 on the valve and the lower surface on the tapered edge 30 on the valve fixing element tend to interconnect with each other as shown in Figure 1.

As will be seen from a reading of English patent application no. 2,158,049 published on November 6, 1985 in the name of James Lee Dorbish and Leo Edward Taske and which is entitled SELF-SEALING DISTRIBUTION VALVE, which request was incorporated here by way of reference, the self-sealing distribution valve 6θ and the elastically deformable container 12 used in the present invention, with the exception of small differences in the process of fixing the valve through the discharge port, can, in general, be the same as the self-sealing distribution valve and that the elastically deformable container described in Figure 9 of said patent application. The self-sealing delivery valve 6θ used in the present invention is preferably made of an elastic material, which can be an elastomer such as silicone rubber and which is preferably formed by injection molding. Another viable category of materials from which the delivery valve 60 can be formed, comprises thermoplastic elastomers. Still examples of other elastic materials well known in the art that can be used for the delivery valve 60 comprise polyvinyl chloride, urethane, ethylene vinyl acetate, styrene butadiene copolymer and the like.

In the valve embodiment shown in Figure 1, a substantially linear groove 70 is provided, extending from the innermost surface

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Mod. 71 - 10,000 βχ. - 4-86 to the outermost of the diaphragm zone 61 of the valve. The substantially linear groove 70 is preferably positioned in such a way that it passes through the center of the valve 60, which in turn is positioned through the discharge hole of the container so that the center of the valve 60 substantially coincides with the axis of the valve. circular neck zone 19 of container 12. As mentioned earlier in the present description, when flexible distribution and storage packages of the type generally described in the aforementioned English patent application by Drobish and Taske, are subject to accidental external loads, as when a clutch box containing a plurality of these packages is dropped or subjected to a closing operation, the concave area of the dispensing valve can be reversed by the appearance of a fluid pressure exerted against the its inner surface. In some cases the inner passage formed by the annular side wall zone of the valve can also be tightened by itself since the valve is distorted in an attempt to release the pressure increase. Although auxiliary spring sealing elements, of the type described in the aforementioned English patent application by Drobish and Taske can withstand a certain degree of impact and / or compressive load and prevent unwanted product discharge, it has been observed that the impact and / or compressive loads currently experienced in routine handling and traffic operations are sometimes sufficient to dislodge the auxiliary spring sealing element and discharge the product. This can result in damage not only to the packaging or packaging that directly suffered accidental external loading, but also to the packaging nearby and even the nearby product boxes.

The present invention solves many of the damage and dirt problems associated with such packaging,

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Mod. 71 - 10,000 θχ. - 4-66 provide a new structure that allows a first mode of operation in which the vast majority of impact loads applied to the interior surfaces of the valve meet resistance without causing damage to the packaging or unintended product discharge. In addition, this new structure allows for a second mode of operation that preserves the extremely desirable opening and closing characteristics revealed by the flexible packaging of the type generally described in the aforementioned English patent application attributed to Drobish and Taske.

In particular, to avoid reversing the concave shape zone 61 of the valve, in response to sudden applied impact loads of fluid against the inner surfaces of the valve 60, valve retention means are provided that not only resist the inversion of the valve. valve by means of physical contact with its outermost surface, as well as concave the zone 61 of the valve in a state of radial compression whenever the packaging is in its first mode of operation. The packaging embodiment 10 is in its first mode of operation when the valve retaining element 40 is in the fully closed position, shown in Figure 2. When the valve retaining element 40 is in its fully open position , as shown in Figure 1, the package is in its second mode of operation.

As can be seen from Figures 1, IA, and 2, the valve retaining element 40 is hingedly connected to the valve fixing element 28 by means of a pivot pin 4-5 on the support element 50 which, preferably, it is integrally formed with valve fixing element 28. The valve retaining element

40, which typically consists of molded plastic, such as polyethylene or polyvinyl chloride, preferably comprises exterior surface retention means

-2QW Ltl. ΐΰθ '

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Mod. 71 - 10,000 ex. - 4-86

In the packaging embodiment shown in Figure 2B, that innermost ring 41 has an overall height greater than the outermost concentric ring 42 which is located precisely within the outermost edge of the hemispheric zone 61 of the valve. For example, the lowest surface of each concentric ring is positioned and configured in such a way that the lower surfaces of concentric rings 41 and 42 that are adjacent to the valve do not deform the concave region 61 of the valve when the Check valve 40 is in the completely closed position shown in Figure 2.

The vertical void space between ring 41 and the highest surface of the concave zone 61 of valve 60 is marked as Yj in Figure 2B, while the vertical distance between ring 42 and the highest surface of the concave zone 61 of valve 60 is marked as Υρ · The maximum amount of vertical void space between the upper surface of the concave zone 61 of valve 60 and the lower surfaces of rings 41 and 42, as defined by the vertical distances Y ^ e Yp, respectively, may vary, depending on factors such as the elasticity of the 6θ valve, the particular geometry of the valve and the 4θ valve retaining element, the length and orientation of the valve groove or grooves 70 and the viscosity of the fluid material to be distributed. If the groove 70 is long enough to make contact with the rings 41 and 42 when the valve tries to deform in response to an impact or compression groove such as

-2113 lUfco

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Mod. 71 - 10,000 θχ. 4-86, such as that which may be caused by accidental dropping or compression, either of an individual package 10 or of a packaging box, in many cases it has been found that it is desirable to allow a limited degree of valve movement to avoid that the concentration of compression occurs at points of contact with rings 41 and 42. However, the degree of valve movement allowed should not be so great as to allow the inversion of the concave zone 61 of the 6θ valve.

In the alternative valve retaining element 140, shown in Figure 2C, the vertical voids and Y2 have been increased in relation to those used in the valve retaining element 40, shown in Figure 2B to allow a greater degree of movement in the concave shape 61 of the 6θ valve. As will be evident from a comparison of Figures 2B and 2C, the increase in vertical void space Y ^ between the lower surface of the ring 141 and the concave shape zone 61 of the 6θ valve, is much greater than the increase in space vertical void Y _p between the lower surface of the ring 142 and the concave zone 61 of the valve 60. Therefore, it will be understood that the optimal vertical free spaces Y and Y for any particular valve and retaining element are preferably , established independently of each other.

In the embodiment shown in Figure 2C, the concave region 61 of valve 60 may expand to a small condition or become flat before coming into contact with the lower surfaces of rings 141 and 142. By allowing— Since the entire concave zone 61 of the 6θ valve supports a high degree of expansive movement, it reduces the possibility of localized deformation of specific areas of the valve that would otherwise allow the local opening of the groove 70 contiguous to its contact with the annular retaining rings. It is evident that it will be understood that they can add »

-2218 0EZ.1987

59155

Case 3603R

Mod. 71 - 10,000 ex. 4-86 additional rings are provided to provide greater valve retention in the event that the two means represented in the illustrated embodiment have failed to prevent the unintended fluid discharge.

As will be appreciated by those skilled in the art, concentric rings 41 and 42 on valve retaining element 40 and concentric rings 141 and 142 on valve retaining element 14θ act in a manner generally similar to that of the concave shape of the element auxiliary spring seal described in the English patent application by Drobish and Taske. However, as noted in the previous paragraphs, the valve retaining means of the present invention, unlike the Drobish and Taske valve retaining element, also comprise means for placing the z_o in the concave shape 61 of the 6θ valve in a compression condition. applied radially when a distribution and storage package of two operating modes, according to the present invention, is in its first operating mode. This is preferably completed by means of a third concentric ring 43 which has an inner diameter slightly larger than that of the higher surface of the concave region 61 of the valve. In addition, the lower surface of the annular ring 43 is preferably tapered to an angle that substantially coincides with the tapering angle of the tapered section 63 of the annular side wall zone 62 of the valve 60. Unlike the annular rings 41 and 42 shown in Figure 2B and the annular rings 141 and 142 shown in Figure 2C, the annular ring 43 is dimensioned and configured in such a way that it produces a slight degree of interference between the tapered segment 63 of the annular side wall zone 62 whenever a valve retaining element according to the present invention is in its completely closed position, as shown in Figures 2B and 2C. As a result of this slight interference,

-2359155

Case 3ÓO3R

Mod. 71 - 10,000 ex. 4-86 (a compressive force oriented radially F ^ around the periphery of the concave region 61 of the valve whenever a valve retaining element according to the present invention is in its completely closed position.

Because of the radially oriented force F ^, applied around the periphery of the 6θ valve by the peripheral retaining ring 43, continues to increase as the concave zone 61 tries to approach a flat condition, the compression increased in the zone concave shape of the valve will tend to seal the groove or grooves 70 more tightly at the same time as the concave shape zone 61 of the valve 60 tries to achieve a flat condition. This, in turn, helps to prevent an unintended discharge of the fluid through the groove in response to accidental impact or compressive loads applied to the packaging.

As will be appreciated by those skilled in the art, the compressive force F ^ exerted by the outermost annular ring 43 against the outermost surface of the valve 60 has the effect of forming a seal that traps the air contained within the area of the valve retaining element located inside the annular ring 43 and the highest surface of the concave zone 61 of the oO valve. When the concave region 61 of the valve 60 is allowed to support limited movement in response to an accidental impact or compressive load applied to the package 10, the air trapped within the aforementioned area is compressed. Depending on the volume of air initially trapped in this area and the degree of compression experienced in response to the impact load or accidental compression applied to the packaging, there is sometimes a tendency for the valve retaining element to be dislodged. This trend is particularly pronounced in the shapes of embodiment in which the valve retaining element is only hinged to the fixing element of valid-2459155

Case 3603R vula 28.

The valve fixing element 28, shown in Figure 11, which is identical to the valve fixing element 28 shown in Figures 1 to 8, incorporates a valve retaining element 140 that allows air that would otherwise be trapped between the upper surface of the concave zone 61 of the valve 60 and the

retention in valve 140 located inwardly to the annular ring 43, if release for a camera formed in outer regions of element retention valve 140. This ventilation of air the inner chamber to the chamber ex-

Mod. 71 - 10,000 θχ. 4-86 terior substantially reduces the tendency of compressed air to dislodge the valve retaining member from its fully closed position. In the packaging embodiment shown in Figure 11, ventilation means are provided between the inner and outer regions of the valve retaining element 14o, that is, the areas that are on opposite sides of the annular ring 43 · The means of ventilation comprises a plurality of notched fans 180 in the innermost annular ring 141, a plurality of notched fans 184 in a secondary annular ring 142 and a plurality of notched fans 188 in the outermost annular ring 43. These notched fans prevent the formation of a seal between the inner and outer stiffness of the valve retaining element 140 when the valve retaining element is in its completely closed position, as shown in Figure 2C.

In the event that the concave zone 61 of the valve 60 supports limited movement due to accidental external loading of the packaging shown in Figure 11, the air immediately above the surface of the concave zone of the valve is free to pass from the inner to the outer regions. of the valve retaining element 140 through the slotted fans. Due to the relatively small volume reduction caused by the limited movement

-2559155

Case 3603R

Mod. 71 - 10,000 θχ. - 4-86 of the concave zone 61 of the valve 60 compared to the much larger air volume contained in the outer chamber of the valve retaining element 14θ, the degree of air compression that occurs due to the external load of the package is normally insufficient to dislodge valve retaining member 140 from its fully closed position.

It is obvious that it is recognized that the ventilation means notched in the packaging embodiment of Figure 11 is only one of the preferred solutions to the air compression problem mentioned above. Many other fan configurations could be used with equal ease. In addition, the inner regions of the valve retaining element 140 could, if desired, be vented into the atmosphere, either directly inside the annular ring 43, or indirectly outside the annular ring 43 »The particular fan configuration employed is not critical since the size of the fan or fans is large enough to allow substantially instantaneous ventilation of the air that would otherwise be compressed between the concave zone 61 of the valve 60 and that zone of the valve retaining element 14o located inside the annular ring 43 · the valve retaining element according to the present invention can be held in the positions illustrated in Figures 1 and 2 by many alternative means well known in the art. For example, valve retainer 28 and valve retainer 4o may comprise corresponding lobes (not shown) that engage one another at one or more points around the periphery of the valve retainer. Alternatively, the hinge mechanism chosen to connect the valve retaining element 40 to the valve retaining element 28 may comprise a retaining spring (not shown) to hold the valve retaining element in any position until the user decides to change it manually.

-2659155

Case 36031 ^

Mod. 71 - 10,000 θχ. - 4-86

Surprisingly enough it was found that even when the concave zone 61 of the 6θ valve is kept in a compression condition and the outer surface of the concave zone is prevented from being inverted by means of concentric rings 41 and 42, as shown in Figure 2, sudden impact loads on the package can still cause damage and stain when the valve is attached through the discharge port in the manner generally described in Figure 9 of the English patent application by Drobish and Taske mentioned above. In particular, note that strong impact loads on the inner surfaces of the valve caused by sudden momentary increases in fluid pressure can further cause the valves that are fixed in position according to the indications in Figure 9 of the patent application English version of Drobish and Taske suffer an external distortion in an attempt to release the pressure. In some cases this can cause the annular side wall zone of valve 62 to close in the internal valve passage 80 and be dislodged from the discharge hole of the container.

the present invention overcomes the problems related to this aspect of sudden fluid impact loading on the valve, by providing annular sidewall retaining means to prevent that annular sidewall area that is sealingly fixed through the discharge discharge. of the container closes inwards in the internal passage of the valve. In addition, the annular sidewall retaining means according to the present invention prevents the valve fixing edge from being tightened and distorted out of its desired position in the event that the valve fixing element is subjected to a force excessive torsion when applied to the container. In the embodiment shown in Figures 1 and 2 this is completed by providing means for retaining 9θ annular sidewall retaining

-2759155

Case 3603R

Mod. 71 - 10,000 ex. - hollow cylindrical 4-flute 91 which has an outer diameter approximately equal to the inner diameter of the right wall segment 64 of the annular side wall zone 62 of valve 60. The hollow cylinder element 91, which is preferably made up of a molded plastic material such as polyethylene or polyvinyl chloride has a total height sufficient to encompass that area of the annular side wall 62 which coincides with the inward edge 30 of the valve fixing element 28, as well as the cylindrical edge 65 of the 6O valve. The lower part of the cylindrical element 91 is preferably attached to an outwardly directed edge 12 which, when installed, abuts the lower surface of the edge 65 of the valve 60. The center of the rim 92 comprises a relatively large opening of 98 through which the fluid can pass.

As can best be seen from the fragmentary view of Figure 19, the annular sidewall retaining means 90 are preferably inserted from the lower end of the valve fixing element 28 either concurrently with or after the valve 60. The valve 60 is installed in its position by means of an external peripheral notch 68 which is spring-loaded on the inwardly directed edge 3θ on the valve fixing element 28. If the 6θ valve and the annular sidewall retaining means 90 are inserted concurrently, the hollow cylindrical element 91 which is located within the right wall zone 64 of the annular sidewall 62, helps to keep the valve and the annular sidewall retaining means aligned with each other during the insertion process .

As can be seen better in Figures 1 and 2, the edge 92 must be slightly deformed in order to finally be fixed in its position in the internal groove 37 80 valve fixing element 28. As can also be seen in Figures 1, IA , 2 and 2A, the waterfront area

-2859155

Case 3603R

Mod. 71 - 10,000 βχ. 4-86 of the annular sidewall retaining means 90 also includes a small raised ledge 95 for its higher surface and a small raised ledge 96 for its lower surface. These raised projections help to establish a fluid impermeable seal between the edge 65 of the 6θ valve and the higher surface of the edge 92 of the annular sidewall retaining means, as well as between the lower surface of the edge 92 and the higher surface or finishing of the container neck 19. As will be appreciated by those skilled in the art, the groove 37 in the valve fixing element 28 is preferably positioned in relation to the inwardly directed edge 30 so that an impermeable seal is formed to the fluid between the upper edge of the edge 92 and the lower edge of the edge 65 whenever the innermost and lowest edge 31 of the inwardly directed edge 30 rests on the notch 68 of the valve and the outwardly directed edge 92 rests on the notch 37 of the valve fixing element. Consequently, the only fluid impermeable seal that has to be established when the fully assembled valve clamp 28 is applied to the container neck 19 is between the lower edge edge 92 and the upper or finishing surface of the neck container. This is identical to what is required to apply a conventional closure to a container. Consequently, a reliable application of the fully assembled valve fixing element 28 while the valve retaining element 40 is in its completely closed position, as illustrated in Figure 2, can be performed using conventional automated capping equipment without the need for hypercritical control of the application of torsional force. Since the edge 92 is retained by the notch 37, severe compression of the edge 65 of the 6θ valve is avoided even if the valve fixing element 28 is subjected to a twist greater than the need to establish a fluid impermeable seal between

-2959155

Case 3603R

Mod. 71 - 10,000 βχ. - 4-06 the edge 92 and the finishing surface of the container neck. This, in turn, helps to ensure uniform valve operating characteristics and spill resistance from one package to another. In addition, it helps to prevent tightening and distortion of the valve clamping edge 65 even if it happens that the valve clamping element 28 is subjected to excessive torsional force when applied to the container.

In general, it has been observed in the practice of the present invention that the valve retaining means and the annular sidewall retaining means of the type generally described in the previous paragraphs are effective in overcoming the problems of damage and dirt caused by sudden loads impact, in most situations where the valve retaining means are secured in place by positive tightening means, for example, such as by complementary screw threads of the type described in the storage and distribution packaging embodiment two operating modes 10 ', shown in Figure 10.

As will be evident from a comparison of the packaging methods of Figures 10 and 2, in which similar reference numerals were used for similar elements, the valve fixing element 28 'and the valve retaining means 4o' they differ from the valve fixing element 28 and the valve retaining means 4o, respectively, in terms of their method of fixing each other. In particular, the valve fixing element 28 'was provided with an integrally formed erect nipple 55 which has a helical thread 57 on its outermost surface. The valve retaining means 40 ¹ are attached to the packaging in the first mode of operation to the valve fixing element 28 'by means of a continuous internal thread 59, complementary to the thread 57 in the valve fixing element 28'. When the means of

-3059155

Case 3ÓO3R

Mod. 71 - 10,000 θχ. - 4-66 check valve 40 'are fully advanced in their closed position, as shown in general in Figure 10, the adjustment between the annular concentric means 41, 42 and 43 located inside the retention means valve 40 ¹ in the packaging embodiment 10 'is identical to that of the packaging embodiment 10, shown in Figure 2.

The annular sidewall retaining means 90 'shown in the packaging embodiment 10' of Figure 10 comprises a cylindrical member 91 and an outwardly directed annular edge 92 identical to those used in the annular sidewall retaining means 90, represented in Figure 2. A centrally located opening 98 is provided in the center of the outwardly directed edge 9 ² identical to the opening 98 in the sidewall retaining means, 90, shown in Figures 1 to 9.

However, the annular sidewall retaining means 90 and the annular sidewall retaining means 90 'differ from each other in an important aspect. Due to the severity of the impact load that sometimes occurs against the interior of the valve surface 60 due to the sudden application of external forces during shipping and handling, it has been observed that, unless the valve retaining means are positively closed in their position by very strong means, such as screw threads, as shown generally in the packaging embodiment 10 'of Figure 10, it is still possible for valve 60 to invert and dislodge the retaining means 40 of the its fully closed position shown in Figure 2, to an intermediate position at some point between that shown in Figure 2 and the fully open position shown in Figure 1. Note the application of rings 41 and 42

respectively, in response to a fluid pressure suddenly applied inside the valve 60,

-3118 W '

59155

Case 360 3R

Mod. 71 - 10,000 θχ. 4-86 as shown in general in Figures 4 and 4A.

Therefore, when it is desired to use valve retention means that are not fixed in their completely closed position by means of high security, such as screw threads, for example, the valve retention means connected by hinges 40, shown in Figure 2, a deflector 102 oriented substantially perpendicular to the internal through axis 80 of the 6θ valve is preferably secure in relation to the discharge port 22 of the container. As can be seen in the packaging embodiment 10 of Figures 1 and 2, the deflector 102 can be fixed by means of a plurality of supports 104 to the lower surface of the edge 02. The deflector

102 is thus positioned in the fluid communication path between the inner surface and the concave zone 61 of the valve 60 and the interior of the container.

Any fluid material that concave the inner surface of the zone 61 of the valve from the inside of the container must hit and be directed around the deflector 102 before it can reach the inner surface of the zone in a concave form of the valve. This redirection is generally illustrated by the arrows in Figure 3, which reveal the fluid column rising in response to an external force suddenly applied to the container 12. 0 closing of the annular side wall zone 64 of the 6θ valve in the internal passage 80 encounters resistance around its periphery by a holding force directed radially outward F4, shown in Figure 4, applied by the hollow cylindrical element 91 of annular sidewall retaining means 9θ> As can also be seen in Figure 4 that represents the interior of valve 60 substantially filled with fluid, deflector 102 serves to redirect the column of fluid that is rising in one of different directions, thereby generating turbulence that helps to dissipate the quantity

-3218 CEZ.1S859155

Case 36O3R

Mod. 71 - 10,000 ex. - 4-66 movement of the approaching fluid column. Consequently, the severity of the impact load against the interior surface of both annular sidewall zones 62 and the concave shape zone 61 of valve 60 is reduced to a level that, in most cases, is insufficient to dislodge the means of hinge valve retention 40 from the fully closed position shown in Figure 2.

As long as the valve retaining means 90 is not dislodged by the sudden application of fluid pressure inside the valve 60, the valve will remain in an inwardly concave, sealed and spill-resistant position, as generally represented in the Figure

In order to avoid a negative impact on the distribution characteristics of the distribution and storage packages of the present invention in its second mode of operation, the flow area that exists between the multiplicity of supports 104 is preferably maintained, at least equal to the area of total surface of the interior of the concave zone 61 of the valve.6θ.If the flow area between the supports is much larger than this, the speed of closing of the valve when the forces are released from the container will be impaired. Consequently, the preferred deflector 102 serves to redirect the flow of fluid that is approaching the valve, coming from inside the container, without suddenly holding it in any direction.

As will be appreciated from the preceding description, deflector 102 can also be used in situations where the valve retaining means are fixed in their closed position by very strong fixing means. See, for example, the packaging embodiment 10 ’* of the Figure

9. However, deflector 102 finds great use in those situations where the valve rotation means are not fixed in its completely closed position by

-3359155

Case 3603 ^

Mod. 71 - 10,000 ex. - 4-66 strong fastening means, for example, the hinged top packaging embodiment 10, shown in Figures 1 to 4. Using the deflector 102 in conjunction with the annular valve retaining and sidewall retaining means , such as those described in general in Figures 1 to 4, even the distribution and storage packages of two operating modes, articulated top, according to the present invention, can be subjected to substantial impact loads, without dislodging the valve retaining member 40 from the fully closed position, generally illustrated in Figures 2-4.

Consequently, the present invention solves serious problems typically experienced when flexible distribution and storage packages of the type generally described in the English patent application by Drobish and Taske, are subject to sudden impact loads and still preserves all operating characteristics. highly desirable of these packages.

Claims (15)

Consequently, the present invention solves serious problems typically experienced when flexible distribution and storage packages of the type generally described in the English patent application by Drobish and Taske, are subject to sudden impact loads and still preserves all operating characteristics. highly desirable of these packages. Although particular embodiments of the present invention have been described and illustrated, it will be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. For example, the present invention can also be practiced to improve packages that use self-sealing valves with multiple linear grooves that do not intersect, in their concave shape. Also, the present invention can be practiced to improve packages that use self-sealing valves with grooves that intersect in their zone in a concave manner. It is also intended to encompass, in the annexed claims, all those modifications that are within the scope of the present invention. -3459155 Case 3603R The filing of the first application for the invention described above was made in the United States of America on December 19, 1986 under the No. 944,632 Mod. 71 - 10,000 ex. - 4-86 - CLAIMS1 ?. - Flexible distribution and storage packaging for fluid material, which has a first mode of operation capable of storing the fluid material without emptying when the packaging is subjected to unintended external forces and a second mode of operation capable of distributing the fluid material when the The packaging is subjected to external forces applied intentionally by the user, the second mode of operation being able to distribute the fluid material through a discharge hole, in response to forces applied manually and capable of automatically ceasing the distribution operation when the forces are removed applied manually, the packaging also being resistant to emptying in the second mode of operation, when stored with its discharge hole oriented downwards between the distribution cycles, in a container that is characterized by understanding; a) an elastically deformable container to house the fluid material, which has a degree of flexibility sufficient to allow its deformation, in response to manual forces applied to it and a degree of elasticity sufficient to automatically return to its undeformed condition, when the applied forces are not removed, which container contains the said discharge port; b) a self-sealing distribution valve that, in the second mode of operation, opens at a pressure -3559155 Case 36O3R NfOd. 71 - 10,000 θχ. - 4-86 ( predetermined limit that is greater than the maximum hydraulic main pressure of the fluid material in the container, when the discharge orifice is oriented downwards, the distribution valve having a part located in the center, composed of elastic material, having this part located in the center a predetermined concave shape, while it is in an essentially uncompressed condition, the part with concave shape located in the center, sealingly fixed around its periphery to an end of an annular lateral wall area elastic valve, defining this zone of the valve an internal passage that places the inner surface of the concave shape of the valve in fluid communication with the interior of an elastically deformable container, the other end being the elastic annular side wall zone of the valve sealingly fixed around its periphery, through the container discharge hole the valve being oriented with respect to the discharge port so that the elastic zone of the said valve located in the center is concave inward when the container is in an undeformed condition, also including the concave elastic zone of the valve, at least , in an essentially linear groove that extends through its thickness starting from its innermost surface to its outermost surface, the valve having a capacity to undergo an inversion in the second mode of operation from a closed, concave inward position, sealed and resistant to emptying to an open, convex outward and unsealed position, when manually applied forces increase the pressure inside the container beyond the limit opening pressure of the valve, whereby the fluid material is discharged from the container in the second function mode-3.659155 Case 36O3R ç) Mod. 71 - 10,000 ex. - 4-86 through the groove in the valve, while the forces applied manually in the container maintain an internal pressure that exceeds the limit opening pressure of the valve, this valve still having a capacity to cut the discharge of fluid material, when a closed position, concave to dentco, sealed and resistant to emptying in the second mode of operation, whenever the forces applied manually are removed from the container; valve retention means to prevent it from reversing and distributing the fluid material whenever the packaging is subjected to unintended external forces in the first mode of operation, the valve retaining means comprising the first peripheral retention means for applying a compressive force oriented radially around the periphery of the concave configuration zone of the valve having the peripheral retaining means tending to place the concave configuration zone of the radial compression state in the first mode of operation, including the valve retention means in the second outer surface retaining means that coincide, at least, with an outer surface zone of the concave shape of the valve to avoid reversing that zone when the package is in the first operating mode, so the fluid pressure generated inside the container and applied to the point connection between the concave valve zone and the annular lateral wall zone of the valve encounters resistance in the radially oriented compressive force, applied by the peripheral retaining means while preventing the valve concave shape from undergoing inversion through the second outer surface valve retaining means that substantially coincide -3759155 Case 3603R Mod. 71 - 10,000 ex. - 4-86 with at least one part of its outermost surface; and d) annular sidewall retaining means to prevent the fixed annular sidewall area through the container discharge port from closing inwardly in the internal passage in response to sudden increases in fluid pressure within the container, both in the first as in the second mode of operation of the package, the annular sidewall retaining means comprising an annular retaining element having an outer diameter substantially equal to the inner diameter of the inner passage, defined by the annular sidewall side of the valve, the annular sidewall retaining means secure in a fixed relation to the discharge port in the container, so that they extend through the internal passage of the annular sidewall side of the valve, at least in the sealing area between the valve and the discharge of the container, so that the pressure of fluid generated inside the container is prevented from being applied n the inner surfaces of the concave zone and the annular side wall zone of the valve close the annular side wall zone of the valve inside the internal passage in the sealing area between the valve and the container discharge port, by means annular sidewall retention system. 2 ^. - Packaging, according to claim 1, further characterized by comprising a deflector oriented substantially perpendicular to the axis of the internal passage of the valve, the deflector being secured, in a fixed relationship, to the discharge hole in the container in the communication path fluid, between the inner surface 59155 Case 3603R Mod. 71 - 10,000 ex. - 4-86 above the shape zone, concave of the valve and the interior of the container, the deflector being positioned in such a way that any fluid material that approaches the interior surface of the zone concave of the valve, coming from inside the container , must collide and be redirected around the reflector before hitting the inner surface of the valve concave area, so the force of any shock load applied to the inner surface of the valve concave area, due to the application of sudden external forces to the container, is greatly reduced. 3-. Packaging according to claim 2, characterized in that the deflector is secured to the annular sidewall retaining means. 4-. Packaging according to claim 3, characterized in that the cross-sectional area for the flow of fluid material, which exists between the deflector and the annular sidewall retaining means is at least substantially equal to the surface area inside the concave shape of the valve. 55. - Packaging according to claim 1 or 2, characterized in that the valve retaining means comprise a closing, articulated and top pressure device which, in its closed position, provides the packaging with the first mode of operation and which, in its open position, provides the packaging with the second mode of operation. 6 ?. Packaging according to claim 1 or 2, characterized in that the valve retaining means comprise a removable closing device that provides the packaging with the first mode of operation, when the closing device is secured in its lu-3959155 Case 360 34 Mod. 71 - 10,000 ex. · 4-86 gar in the container and which provides the packaging with the second mode of operation when the closing device is completely removed from the container. 7-o - Packaging according to claims 5 or 6, characterized in that the free space between the second external surface retaining means and the outer surface of the valve's concave zone is sufficient to allow the zone concave form of the valve undergoes limited movement without reversing, in response to the fluid pressure generated inside the container. 8? » Packaging according to claim 7, characterized in that the second outer surface retaining means are contacted by the outer surface of the concave region of the valve before that region of the valve can become substantially flat. 9-. Packaging according to claim 8, characterized in that the zone of valve retaining means located internally in relation to the first peripheral retaining means, which tendency to place the zone of the valve concave in a condition of radial compression in the first mode operating means, comprise ventilation means to allow the air trapped in the area between the concave zone of the valve and the zone of the valve retention means, located internally in relation to the first peripheral retention means and ', to be released from said area when the concave region of the valve undergoes limited movement in response to the fluid pressure generated within the container. 10 ?. - Packaging according to claim 9, characterized in that the valve retaining means include an outer chamber that is not exposed to the ambient atmosphere whenever the packaging is in the first mode of operation. Case 36O3R Mod. 71 - 10,000 ex. - 4-86 and characterized by the means of ventilation placing the area between the concave zone of the valve and that of the valve retention means, located internally in relation to the first peripheral retention means, in fluid communication with the outer chamber, whenever the packaging is in the first operating mode. 11-o - Packaging according to claim 10, characterized in that the ventilation means comprise at least one groove in the first peripheral retaining means and at least one groove in the second outer surface retaining means. 12 ?. Packaging according to claim 10, characterized in that the valve retaining means further comprise ventilation means for placing the outer chamber in fluid communication with the ambient atmosphere when the packaging is in the first operating mode. 13-. - Packaging according to claim 9, characterized in that the ventilation means place the area between the concave region of the valve and the region of the valve retention means, located internally in relation to the first peripheral retention means, in communication of fluid with the ambient atmosphere. 14 ?. Packaging according to claim 1 or 2, characterized in that the valve, the valve retaining means and the annular sidewall retaining means are all attached to a valve fixing element which is sealingly fixed through the discharge hole of the container. 15 ?. Packaging according to claim 14, characterized in that the deflector is also attached to the valve fixing element. -41J8 Cl? You ’ 59155 Case 3ÔO3R 16 ^. Packaging according to claim 14, characterized in that the valve fixing element is removably secured to the container. 17-. Packaging according to claim 16, characterized in that the valve fixing element is removably secured to the container by means of screw threads. Lisbon, _nEZJ98 7 Mod. 71 - 10,000 οχ. - 4-86 -42w CEZ. W7