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WO2003039970A2 - Pot thermos - Google Patents

Pot thermos Download PDF

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Publication number
WO2003039970A2
WO2003039970A2 PCT/NL2002/000712 NL0200712W WO03039970A2 WO 2003039970 A2 WO2003039970 A2 WO 2003039970A2 NL 0200712 W NL0200712 W NL 0200712W WO 03039970 A2 WO03039970 A2 WO 03039970A2
Authority
WO
WIPO (PCT)
Prior art keywords
opening
lid
closure
pump mechanism
closure component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NL2002/000712
Other languages
English (en)
Other versions
WO2003039970A3 (fr
Inventor
Gerardus Cornelis Jozef De Groot
Willem Derk Jan Laanbroek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bravilor Bonamat BV
Original Assignee
Bravilor Holdings BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bravilor Holdings BV filed Critical Bravilor Holdings BV
Priority to AU2002343229A priority Critical patent/AU2002343229A1/en
Publication of WO2003039970A2 publication Critical patent/WO2003039970A2/fr
Publication of WO2003039970A3 publication Critical patent/WO2003039970A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/0005—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper
    • A47J41/0027—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper
    • A47J41/0033—Thermally-insulated vessels, e.g. flasks, jugs, jars comprising a single opening for filling and dispensing provided with a stopper the stopper incorporating a dispensing device, i.e. the fluid being dispensed through the stopper comprising a pumping system

Definitions

  • thermos jug provided with an internal, insulated container with an access opening at the top, - an external carrier which supports the insulated container, a closure stopper in the access opening, which closure stopper is provided with an introduction opening, via which liquid can be introduced into the insulated container, a discharge tube, which runs through the closure stopper all the way to close to the bottom of the insulated container, via which liquid can be discharged from the con- tainer, a lid having a hollow body, which is pivotably connected to the external carrier, and a pump mechanism installed in said hollow body such that the output port of the pump mechanism extends through a port opening in the lower part of the lid and adjoins, when the lid is closed, said introduction opening, pump actuating means which are accessible through the upper part of the lid for operating the pump mechanism
  • thermos jug of this type is known, for example, from Dutch Patent
  • thermos jug liquid is introduced by opening the lid and pouring in the liquid via the introduction opening in the closure stopper.
  • Liquid can be removed from the jug by using the pump mechanism, which is incorporated in the lid.
  • This mechanism comprises a bellows with valve, which can be operated in a known way in order, when the valve is closed, to force external air into the insulated container. The increase in the air pressure above the liquid forces the liquid into the discharge tube, and the liquid is then passed to the outside via this tube and via an adjoining discharge spout, and when it reaches the outside the liquid is collected, for example in a cup or other container.
  • the entire bellows of the pump mechanism i.e. the concertina section and the adjoining upper and lower plates, are generally secured to one another to form an unreleasable assembly, cleaning the bellows causes problems. During use, it is rela- tively easy for moisture and dirt to penetrate into the bellows via the air-pressure openings.
  • the outer side of the bellows of the pump mechanism is also freely accessible to dirt and moisture. When the jug is open and is being filled with a hot drink, steam or hot, moist air rises up out of the jug, not only along the outer side of the pump mechanism but also into the bellows, which leads to dirt and grease being caked on in particular in the seams of the bellows.
  • US4116366 A further prior art apparatus is described in US4116366.
  • the pump in this apparatus is embodied as a rather small bellows pump driven by a battery powered electric motor. All components of the pump and its drive mechanism are installed in the hollow body of the lid.. Except for a very small opening for the push button by means of which the pump drive motor is operated the hollow body is completely closed and therewith inaccessible for cleaning purposes.
  • thermos jug In general terms, cleaning and keeping clean the top parts of a thermos jug has often proven to be a problem in practice.
  • thermos jug which are under consideration in such a manner that moisture and dirt cannot be deposited at locations which are difficult to gain access to and/or in such a manner that the components under consideration can easily be cleaned.
  • thermos jug of the type described in the first paragraph, through the fact that
  • the lid comprises at its underside an opening of which the dimensions are suited to remove the pump mechanism from the lid through said opening, and
  • a closure component is provided for closing said opening in a detachable manner.
  • the pump mechanism is accommodated in a substantially closed space to maintain it far from liquid, dust and other contaminating substances.
  • this hollow space is easily accessible by removing the closure component. Thereafter through the opening in the lid the pump mechanism can be taken out for cleaning and the hollow space itself is accessible for cleaning too.
  • closure component can be detached by hand and can be brought in to place by hand.
  • the closure component is connected to the lid by means of a threaded coupling.
  • the closure component is connected to the lid via a bayonet connection.
  • pump mechanisms of various different constructions can be used within the scope of the invention, such as a pump driven by an electric motor of the type described in US4116366 or a hand operated type as described in NL1013627, or any other type
  • the pump mechanism comprises an upper plate with suction opening and a moveable flap therein, a lower plate with expulsion opening, a bellows positioned between the two plates, and a spring which prestresses the bellows into the position with the largest volume, whereby the shape of the underside of the lower plate is adapted to the shape of the upper side of the closure component such that because of this adaptation the pump mechanism is maintained in place.
  • the lower plate comprises a pressure spout, which extends through the opening in the closure component and which, when the lid is closed, rests against the rim of the introduction opening in the closure stopper.
  • the spout comprises one or more ribs and that at least the spout and/or the closure component is/are made of such a material that the spout is able to snap in the opening of the closure component in a detachable manner.
  • the connections between the various parts of the pump mechanism is detachable.
  • the closure stopper is connected in a liquid-tight manner to the pouring-out opening of an introduction funnel, comprising a funnel-shaped part, the pouring-in opening of which is shaped such that, when the lid is closed, at least a section of the funnel shaped part rests against at least a section of the closure component.
  • the funnel acts as an additional support for the pump.
  • pressure will be exerted onto the lower part of the hollow body of the lid.
  • This lower part is now at least partly supported by said funnel.
  • closure component and the detachable connection between closure component and lower part of the lid may benefit from this additional support.
  • the lower plate is preferable for the lower plate to be made from a slightly resilient material.
  • Figure 1 shows a cross section through a thermos jug according to the invention.
  • Figure 2 shows a detailed cross section through the closure stopper 5.
  • Figure 3 shows the pump with exploded parts.
  • Figure 1 shows a cross-sectional view through a thermos jug according to the invention.
  • the jug is composed of a double-walled inner bottle 1, which is positioned in a container 2.
  • the container 2 and the inner bottle 1 are supported on a base 3.
  • a closure piece 4 At the top side of the bottle 1 and the container 2 there is a closure piece 4, which preferably closes off the entire top side of the container 2 and, moreover, provides support for the upper side (the neck) of the inner bottle 1.
  • Details of the components 1,..., 4 are of no importance to the invention and will not be discussed in more detail.
  • the closure stopper 5 is fitted into the central opening in the closure piece 4, which in the present example coincides with the access opening in the top of the container 1.
  • This component 5 is shown in more detail in Figure 2.
  • the stopper 5 is provided on the upper side with a funnel 10 with a filling opening on its top side, the diameter of which is so great that all the further components and parts thereof below it are covered.
  • This large introduction opening prevents liquid from being spilled and greatly reduces the risk of moisture and dirt accumulating between the funnel and the top side of the container.
  • the funnel 10 has an outflow opening 11, via which the liquid which has been poured in passes into a passage chamber 12 and, from there, can flow onward via the opening 13 and through the introduction pipe 14.
  • the introduction pipe 14 ends at a short distance from the bottom of the container 1.
  • the stopper 5 is provided with a discharge pipe 16, via which liquid is removed from the container.
  • the closure ring 17 is fitted.
  • This ring is preferably made from a slightly resilient material and is profiled in such a manner that the desired sealing function is in fact produced.
  • the ring 17 is held in place by two shoulders 18 and 19, between which, as it were, a groove has been formed, into which the ring 17 fits.
  • the discharge line 16 ends in a discharge spout 20, which projects far enough sideways for it to be possible for the liquid which flows through this spout to be collected in a mug, cup, beaker or other suitable vessel.
  • thermos jug As shown in more detail in Figure 1, the upper side of the thermos jug is closed off by a lid 6, which is connected to the closure piece 4 via a hinge 7. Below the lid 6 there is a pump mechanism 8, the details of which on the one hand are shown in cross section in Figure 1 and on the other hand are shown in perspective, with an exploded view of the parts, in Figure 3. An actuating element 9, which is used to actuate the pump, is incorporated in the lid 6.
  • the pump unit 8 is composed of a bellows 21 which, on the top side, is secured to an upper plate 22 and, on the underside, is secured to a lower plate 23.
  • a valve 25 In the upper plate 22 there is a valve 25, and there is a spring 26 between this valve 24 and the lower plate 23.
  • the spring 26 is prestressed in such a manner that its natural inclination is to push the upper part 22 with valve 24 and the lower plate 23 apart.
  • the abovementioned components are held in place below the lid 6 by a closure component 28.
  • the closure component is designed as a virtually flat plate with a raised edge.
  • lugs there is a number of inwardly projecting lugs (not visible in the figure) in the edge, and these lugs, together with the grooves 29 in the edge of the lid, form a bayonet closure.
  • This closure enables the lid 6 and the closure component 28 to be fitted together, forming a closed space in which the pump 8 is accommodated.
  • the pump is less exposed to ambient influences and will therefore become dirty less quickly.
  • a corresponding screw thread to be fitted to the components instead of a bayonet closure, once again creating an easily releasable connection.
  • valve 24 If pressure is exerted on the upper plate 22 via the actuating element 9, the valve 24 will close and then, with the valve 24 closed, the bellows 21 will be compressed, with the result that the air which is present therein will be pushed out via the outflow port 27 on the underside of the lower plate 23. The air passes into the container 1, where it will place the liquid, which is present under pressure, so that it will leave the container through the riser 16 and the discharge spout 20. If the pressure on the actuating element 9 and therefore on the upper plate 22 is released, first of all the valve 25 will open, with the result that air can flow into the bellows from the top side.
  • thermos jugs of this type the various components of the pump are connected to one another in such a manner that all the components of the pump can be detached easily without the use of a tool.
  • the spring 26 may be fixed to the lower plate 23 by means of a snap-action connection, but does not always have to be detached for cleaning purposes.
  • the bellows 21 is secured to the upper plate 22, and this combination can easily be cleaned without the components having to be separated from one another.
  • the port 27 is preferably made from a slightly elastic material and is shaped in such a manner that it latches securely into the central opening in the closure component 28. This provides additional strength to the structure.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

L'invention concerne un pot thermos comprenant un contenant intérieur isolé présentant une ouverture d'accès au niveau de la partie supérieure, un support extérieur portant le contenant isolé, un bouchon de fermeture dans l'ouverture d'accès, lequel bouchon de fermeture comporte un orifice d'introduction par lequel un liquide peut être introduit à l'intérieur du contenant isolé, un tube de décharge, lequel s'étend à travers le bouchon de fermeture tout le long pour fermer, jusqu'au fond du contenant isolé, par lequel un liquide peut être versé depuis le contenant, et un couvercle présentant un corps creux, lequel est relié pivotant au support extérieur. Un mécanisme de pompe est installé dans ledit corps creux de telle manière que l'orifice de sortie du mécanisme de pompe s'étend à travers une ouverture d'orifice dans la partie inférieure du couvercle et est contigu à l'orifice d'introduction lorsque le couvercle est fermé. La pompe est commandée par un moyen d'actionnement de pompe, lequel est accessible par la partie supérieure du couvercle pour commander le mécanisme de pompe. Le couvercle comprend, au niveau de son côté sous-jacent, une ouverture dont les dimensions sont adaptées pour retirer le mécanisme de pompe du couvercle par ladite ouverture, et un constituant de fermeture est prévu pour fermer ladite ouverture de manière amovible.
PCT/NL2002/000712 2001-11-07 2002-11-07 Pot thermos Ceased WO2003039970A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002343229A AU2002343229A1 (en) 2001-11-07 2002-11-07 Thermos jug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1019321 2001-11-07
NL1019321A NL1019321C2 (nl) 2001-11-07 2001-11-07 Thermoskan.

Publications (2)

Publication Number Publication Date
WO2003039970A2 true WO2003039970A2 (fr) 2003-05-15
WO2003039970A3 WO2003039970A3 (fr) 2003-11-20

Family

ID=19774276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2002/000712 Ceased WO2003039970A2 (fr) 2001-11-07 2002-11-07 Pot thermos

Country Status (3)

Country Link
AU (1) AU2002343229A1 (fr)
NL (1) NL1019321C2 (fr)
WO (1) WO2003039970A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116366A (en) 1976-08-05 1978-09-26 Zojirushi Vacuum Bottle Co., Ltd. Vacuum bottle container with air pump having vent closing switch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5153488Y2 (fr) * 1973-04-10 1976-12-21
JP2518598Y2 (ja) * 1993-04-13 1996-11-27 株式会社小林コーポレーション 魔法瓶の液体注入構造
NL1013627C2 (nl) * 1999-11-19 2001-05-22 Frank Teh Hsiung Huang Thermosfles.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116366A (en) 1976-08-05 1978-09-26 Zojirushi Vacuum Bottle Co., Ltd. Vacuum bottle container with air pump having vent closing switch

Also Published As

Publication number Publication date
AU2002343229A1 (en) 2003-05-19
WO2003039970A3 (fr) 2003-11-20
NL1019321C2 (nl) 2003-05-12

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