MXPA98003756A - A recipient with two compartments - Google Patents

Abstract

A two-compartment container (10) for pulp or any other thixotropic material comprising an internal compartment (13) located within the outer compartment (14), each compartment (13, 14) having an outlet port (18, 20) in a common end thereof, wherein the outer compartment (14) has a common end of the container a nozzle (18) having two passages on the sides of the outlet (31, 32), the outlet port (20) of the internal compartment (13) open towards one of the outlet passages (32) of the nozzle orifice of the container (27). The container can be closed by means of a lid (42) including a pair of radially spaced annular side walls (147, 148) for sealing the nozzle.

Description

A container with two compartments / Background of the Invention 1. Field of the Invention The present invention relates to containers with two compartments and in particular with container that collapse, which are used to contain two materials that can interact with each other. 2. Description of the Prior Art In US Patent No. A-4528180 a dental preparation comprising separately stored dental preparations is presented, which are used to be combined when they are expelled from their respective containers, for example gel reagents. hydrogen peroxide in combination with paste containing sodium bicarbonate, salt or other polishing and cleaning agent. These dental preparations are stored in containers with two compartments, which are separated for the simultaneous expulsion of the two dental preparations. One form of construction of containers with two compartments comprising a pair of compressible tubes that can be disposed side by side is presented in U.S. Patent No. A-4528180.

Alternatively, a tube may be placed within the second tube as shown in French Patent No. A-2676210.

Summary of the Invention The present invention relates to a container with two compartments for pulp or other thixotropic material comprising a compartment located within the other, and in which the two compartments have separate outlet ports at a common end of the container. In order to simplify the construction of these tubes, in particular with regard to the expulsion and distribution of the contents, the present invention is characterized in that the outer compartment has a common end of the container, which has a nozzle with two exit passages one next to each other and in that the outlet port of the internal compartment opens towards one of these outlet passages of the container nozzle. Preferably, the two exit passages terminate in two substantially semicircular shapes and are located side by side to form a circular orifice divided in the container. The nozzles of the two compartments can be formed of a suitable thermoplastic material, such as for example a composition that includes high density polyethylene or propylene, and an internal nozzle that can be made to be snapped in an outlet passage of the external nozzle. The compartments can be formed from members with collapsible tubes, preferably made of a thermoplastic material, and in particular a thermoplastic laminate comprising a plurality of layers of the same or different materials. Also, according to the invention, there is provided a closure for the container having a cover, which is removed from the nozzle to open the container, the cover has on its surface adjacent to the opening of the nozzle a pair of side walls, Annularly spaced, and radially, which are concentric to the nozzle and in use, are sealed against the inner and outer surfaces of the nozzle.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described by way of example, and with reference to the accompanying drawings, in which: Figure 1 is a cross-section of the nozzle assembly of the container according to the present invention, which shows the walls of the container compartment on one side of the center line only, Figure 2 is a plan view of an assembly shown in Figure 1 without the closure 40, Figure 3 is a plan view of an internal compartment that it is used in the assembly shown in Figure 1, Figure 4 is a cross-sectional view seen through the second nozzle of the assembly having a modified lid seal, and Figure 5 is a cross-sectional view seen through the third. assemble that has a modified lid.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Now, with reference to Figure 1, there is shown a portion of the end of the cross section of a container with multiple compartments 10, for the storage of two compounds of different materials, which are stored separately and that mix or come together at a delivery point of the container. Typical materials can be dental preparations, food pastes or adhesives in two parts. The container 10 comprises an outer compartment 11 formed within the substantially tubular housing 13 that is formed within a tubular housing with a lower diameter 14. The internal compartment 13 is eccentric relative to the outer compartment 11 which opposes being coaxial or concentric the same. The two tubular housings 12, 14 are preferably formed of a flexible, flat plastic strip or strip, which typically has a wall with a thickness of between 0.2 to 0.5 mm and comprising a multi-layered sheet of different plastic materials including a vapor impermeable barrier, which typically is a layer of a plastic material or a layer of aluminum foil. Generally, the web is formed of materials based on high density polyethylene and a barrier layer which is generally based on an ethylene vinyl alcohol material. The band is rolled into a circular or oval shape with the overlapping edges of the bands welded together to form a flexible tube with a substantially round or oval cross section, which is cut to achieve the desired length. Each tubular housing 12, 14 in use, has a closed end (not shown) that is formed with a welded seam, in the shape of a fishtail, as is commonly known in the art. The two closed ends can be formed such that each had 12 or 14 has a seam for closing the respective end or the two closed ends can be welded together into a single welded end closure seam. The other end of each tubular housing 12 or 14 has a respective flange piece 16 or 17 placed therein and having a respective outlet nozzle 18 and 20 for ejecting the material from the tubular housings 12, 14. The two pieces of tabs 16 and 17 are molded from a high density polyethylene composite. The flange part of the outer tubular housing 16 has a cylindrical, lower side wall 19 which closes when fixed within the end portion of the outer tubular housing 12. The upper end of the side wall 19 extends at the rounded end 21 which leads to a frusto-conical shape flange 22 projecting inwardly and outwardly from the side wall 19. Then, the upper end portion of the tubular housing 12 is formed by heating and is welded to the flange 22. The inner end Radius of the frusto-conical flange 22 has an external nozzle 198 projecting axially therefrom. The nozzle 18 comprises a second cylindrical lateral wall 23 coaxial with the first side wall 19, projecting coaxially upwards and terminating at its upper end in a flange projecting inward radially 24. The second frustoconical portion 26 extends in and out away from the flange 24 and terminates in a cylindrical hole 27, coaxial with the side wall 23. A substantially diametrical spacing 28 extends along both holes 27 and the nozzle 18 by dividing it into two passages 31 and 32, wherein each has a substantially circular or D-shaped cross section. The lowermost portion of the partition 28, on the side in use, receives the outlet nozzle 20 of the internal compartment 13, which may have a tab 29 formed therein. The part of the flange in the tubular, internal housing 17 has a lower side wall, substantially in the form of D, which is fixed to close within an end portion of an internal tubular housing 14, which is generally an oval, flexible construction. The upper end of the side wall 33 has a rounded end 34 leading to an inclined flange 35. The inclined flange 35 is directed inward from the side wall 33 and extends upward to define an outlet nozzle 20 within the section transverse substantially in the form of D.

The outlet nozzle of the tubular, internal housing 20 is fixed to close within the exit passage 32 and abuts at its inner end with the flange 29 in a gap 28 and the flange 24 in the part of the outer flange 16. The internal nozzle 20 has a bed 36 which can be a continuous or interrupted bed, on its outer surface which engages a contoured shaped groove 37 on the inner surface of the outlet passage 32 to form a connection which is clamped between the inner nozzle 20 and the partition 28 and the part of the side wall 23 of the part of the outer flange 16. The closure 40 is fixed above the outer flange part 16, which acts as an outer housing for the container 10. The closure 40 comprises a base 41 which is secured to the part of the flange 16 and a cover or cover 42 which is hinged to the base 41 by means of a hinge 43 located on one side of the cover. The base 41 may comprise two parts, a top, annular, inner portion 49 with a cylindrical wall 44 and an outer annular skirt portion 45 projecting downwardly from the upper portion 49. The two parts 49, 44 and 45 may be form integrally as a single piece mold (see Figure 4) or be produced separately and then assembled together. The inner wall 44 makes a connection which is press fit with a side wall 23 of the nozzle 18 and the outer wall 45 forms a decorative outer skirt. The inner wall 44 has a slot 46 on its inner surface which is engaged with the bed 25, which can be a continuous or interrupted bed, on the outer surface of the side wall 23. The cover 49 has a central opening 47 through which portions 26 and 27 of the external nozzle are projected. The cover 42 has a central annular side wall 48 which, in use, is concentric with the mouth of the nozzle 27 and has an annular resilient stop 51 that projects radially inwardly and which engages the outer bed 52 around the hole 27 to hold the opening of the lid that is snapped closed above the hole when the lid is closed, and allows the lid to slide upward and open the container 10 when required. When the lid is in its open condition and both tubular, flexible housings 12 and 14 are subjected to a pressure, expel their contents, the contents of the internal compartments 13 do not expel through the mouthpiece 20 and the outlet of step 32 and the contents of the outer compartment 11 are expelled through step 31.

The two separate contents are kept separate by the separation 28 but are combined in the orifice 27. With reference to Figure 4 a modified container 110 is shown and only the differences, when compared to the first embodiment of the invention, are shown in FIG. will describe in detail. The lid 142 that is included in the central portion 143 can be formed separately and then assembled to the outer portion of the lid 142. The central portion 143, on its side adjacent the nozzle, has a pair of annular and radially spaced apart side walls. 147 and 148 is concentric to the mouth of the nozzle 127, and a pair of diametric walls 149 align with the spacing 128. The side walls 147, 148 engage the outer and inner surfaces, respectively, of the nozzle to seal the lid. and the diametrical walls 149 are hooked on each side of the gap to seal the passages 31, 32 even if. The external outlet nozzle of the inner tube 120 has a cap projecting inward 121 at its outer end to hold the nozzle and help prevent retraction after the nozzle has been assembled in passage 32, when the discontinuous bed 137 enters the cooperation slot 146.

With reference to Figure 5, there is shown a closure 240 in which the cap or cover 242 makes a threaded connection with the outer flange part 216 having an external screw 225 in the cylindrical side wall 223. The cap 242 has a upper portion 231 and an outer cylindrical side wall 232. The side wall 232 has an internal screw 233 cooperating with the thread 225 in the flange part 216 to seal the passages 31., 32. The upper portion 231 has an annular inner side wall 248 which is sealed against the outer surface of the nozzle orifice 227. The circular seal 235 is positioned within the annular side wall 248 against the upper portion 231.

Claims 1. A container with two compartments for pulp or other thixotropic material comprising an internal compartment positioned within the outer compartment, each compartment having an outlet port at one end thereof, wherein the outer compartment has at this common end of the container a nozzle having two outlet passages side by side, the outlet port of the internal compartment is opened in one of the outlet passages of the container nozzle. 2. The container according to claim 1, wherein the two exit passages end in two semicircular shapes and are placed side by side to form a divided circular hole in the container. 3. The container according to claim 1 la 2, wherein the outlet nozzle of the external container forms an external housing above which a closure can be secured to externally seal the two exit passages. 4. The container according to any one of claims 1 to 3, wherein the closure is a lid with a threaded screw that engages the thread formed on the external surface of the outer compartment of the nozzle.

. The container according to claim 3, wherein the closure or cover has a cover that is snapped, which engages the external nozzle. 6. The container according to claim 5, wherein the lid or closure has a slidable cover that can be lifted to open the passages and then returned to its lower condition to seal the exit passages. 7. The container according to any one of claims 1 to 6, wherein the nozzle of the internal compartment is snapped into the container nozzle. 8. The container according to any one of claims 1 to 7, wherein each compartment is formed of a tubular housing that collapses, the internal tubular housing being off with respect to the axis of the outer tubular housing. 9. The container according to claim 8, wherein the two tubular housings are each formed of at least one layer of thermoplastic material.

. The container according to claim 9, wherein each tubular housing is formed of a laminated material comprising a plurality of layers of polymeric material. 11. The container according to claim 6, wherein the lid has on its side adjacent to the separate, annular, side walls, which are concentric to the nozzle to be sealed against the external and internal surfaces of the nozzle. 12. The container according to claim 11, wherein the lid also includes on its side adjacent to the passages, a pair of diametral walls that engage each side of the separation that divides the two exit passages. 13. The lid of the container having a cover that is removed from the nozzle to open the container, to the lid has on its surface adjacent to the nozzle opening a pair of radially spaced side walls, which are concentric to the nozzle and, in use , they seal against the internal and external surfaces of the nozzle.

Claims (11)

1. Claims 1. A container with two compartments for paste or other thixotropic material comprising an internal compartment placed inside the outer compartment, each compartment having an outlet port at one end thereof, wherein the outer compartment has at this end a nozzle that it has two exit passages side by side and the internal compartment also has a nozzle end with an exit port therein, the nozzle of the internal compartment is fixed in one of the exit passages and the other exit passage opens directly to the exit compartment.
2. 2. The container according to claim 1, wherein the two exit passages end in two semicircular shapes and are placed side by side to form a divided circular hole in the container.
3. 3. The container according to claim 1 la 2, wherein the outlet nozzle of the external container forms an external housing above which can be secured a closure to externally seal the two exit passages.
4. 4. The container according to any one of claims 1 to 3, wherein the closure is a cover with a threaded screw that engages the thread formed on the external surface of the outer compartment of the nozzle.
5. 5. The container according to claim 3, wherein the closure or cover has a cover that is snapped, which engages the external nozzle.
6. 6. The container according to claim 5, wherein the lid or closure has a slidable cover that can be lifted to open the passages and then returned to its lower condition to seal the exit passages.
7. 7. The container according to any one of claims 1 to 6, wherein each compartment it is formed of a tubular housing that collapses, the internal tubular housing is compensated with respect to the axis of the external tubular housing.
8. 8. The container according to claim 7, wherein the two tubular housings each form at least one layer of thermoplastic material-j
9. 9. The container according to claim 8, wherein each tubular housing is formed of a laminate material comprising a plurality of layers of polymeric material.
10. 10. The container according to claim 6, wherein the cap has, on its side adjacent to the passages, annular, separate side walls that are concentric to the nozzle to be sealed against the external and internal surfaces of the nozzle.
11. 11. The container according to claim 10, wherein the lid also includes, on its side adjacent to the passages, a pair of diametral walls that engage each side of the separation division of the exit passages.