WO2007091951A1 - Ensemble systeme de valve - Google Patents

Ensemble systeme de valve Download PDF

Info

Publication number
WO2007091951A1
WO2007091951A1 PCT/SE2007/000111 SE2007000111W WO2007091951A1 WO 2007091951 A1 WO2007091951 A1 WO 2007091951A1 SE 2007000111 W SE2007000111 W SE 2007000111W WO 2007091951 A1 WO2007091951 A1 WO 2007091951A1
Authority
WO
WIPO (PCT)
Prior art keywords
opening portion
adhesive layer
container
valve system
opening
Prior art date
Application number
PCT/SE2007/000111
Other languages
English (en)
Inventor
Gunnar Olsson
Original Assignee
Micvac Ab
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 Micvac Ab filed Critical Micvac Ab
Priority to EP07709327A priority Critical patent/EP1981780A4/fr
Priority to US12/086,752 priority patent/US20090166362A1/en
Publication of WO2007091951A1 publication Critical patent/WO2007091951A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve
    • B65D51/165—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve formed by a slit or narrow opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/12—Audible, olfactory or visual signalling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means

Definitions

  • the present invention relates to a valve system for a package or container, especially for food containers whose contents are intended to be heated, said valve system comprising an adhesive layer arranged over an opening portion in the container, the adhesive layer being arranged to at least partly release the container adjacent an opening portion in the adhesive layer in case of overpressure and thus form an opening to allow a flow out of the container and, in this flowing-out, emit an acoustic signal by means of said opening portion in the adhesive layer which is made to oscillate by the flow.
  • a food container of, for instance, the type that contains prepared one person dishes and that is sold in refrigerated and frozen-food counters to be heated or finally cocked in a microwave oven the food is usually placed in a heat-resistant tray and covered with a plastic film.
  • a plastic film For heating, either the plastic film is removed or it is punctured and then the entire tray is placed in the microwave oven. Due to the fact that different types of microwave oven have different perfor- mances and the food absorbs microwave energy in different ways due to composition and temperature, the time for heating varies significantly. It is therefore difficult to give the consumer recommendations as to how long the food is to be heated to be ready. For the consumer, this may require that the microwave oven be opened several times to allow him to sense whether the food is thoroughly hot or ready cocked.
  • valve which is adapted to open at an overpressure arising in the container during heating and which besides is arranged to emit an acoustic signal in said opening.
  • the valve consists alternatively of an indication of fracture, a slit or a hole, over which an adhesive layer is arranged.
  • the adhesive layer is arranged to be forced to move when a flow of steam/gas passes out of the valve, whereby an acoustic signal occurs.
  • a common variant of such a valve comprises a slit in the container, over which slit an adhesive layer is arranged, which adhesive layer at least in a portion is provided with an adhesive suited for use with food since the invention in the first place aims at food containers.
  • the adhesive layer usually is an adhesive tape, preferably elastic, so as to be able to follow the motions of the container material during handling and not release the base.
  • the object of the present invention therefore is to alleviate the above problems.
  • valve system of the type stated by way of introduction being given the features as defined in claim 1.
  • Preferred embodiments of the valve system are stated in the claims dependent from claim 1.
  • the present invention is described based on valve systems for food containers.
  • Foodstuffs normally generate steam when heated, bur the valve system according to the present invention can also be used for other types of containers where the contents are to be heated and, instead of steam, a gas can be used to cause the opening.
  • the present invention is a valve system for a container, especially for food containers whose contents are intended to be heated, said valve system comprising an adhesive layer arranged over an opening portion in the container, the adhesive layer being arranged to at least partly release the container adjacent an opening portion m the adhesive layer m case of overpressure and thus form an opening to allow a flow out of the container and, m this flowmg-out, emit an acoustic signal by means of said opening portion m the adhesive layer which is made to oscillate by the flow, wherein the valve system comprises at least a second opening portion arranged, m heating of the contents of the container, to open before the above-mentioned opening portion in the adhesive layer.
  • the pressure When heating a container with its contents, the pressure first rises until said second opening portion opens, and after that the pressure falls. In the continued heating, the temperature thus rises and the flow out of the container increases and causes after a while the opening of said first opening portion.
  • said second opening portion is arranged to open at a lower temperature than said first opening portion. This second opening portion is thus designed so as not to emit an acoustic signal when gas or steam flows out of this portion.
  • adheresive layer is adapted to include, for example, an adhesive tape or a self-adhesive label.
  • microwave ovens for heating as described above, but other types of heating will work as well, such as a convection oven (steam box/steam oven) .
  • convection oven steam box/steam oven
  • said second opening portion is arranged in the adhesive layer. This allows a relatively simple solution since the actual container has to be provided with only one opening portion over with the adhesive layer is arranged.
  • the opening portion m the adhesive layer is a slit.
  • the slit can be formed m various ways, for example a straight slit, an arcuate slit or two or more slits intersecting each other.
  • said second opening portion When said second opening portion is arranged in the adhesive layer, it is suitable for the second opening portion to be arranged closer to the opening portion in the container than said first opening portion in the adhesive layer.
  • said second opening portion could instead be arranged at a greater distance if, for example, adhesives with different degrees of adhesiveness are used.
  • An alternative embodiment could further be obtained with two adhesive layers, one adhesive layer comprising the opening portion that is to open for the first steam produced in heating, and the second layer would then comprise the opening portion that generates an acoustic signal in producing a great amount of steam when the contents in the container are ready to eat.
  • said second opening portion is arranged to close when said first opening portion in the adhesive layer opens. If all the flow out of the container passes through the opening that generates the acoustic signal, a louder acoustic signal is obtained, which m some contexts can be advantageous.
  • At least part of the container is perforated.
  • Film that is perforated is normally used for, for example, vegetables which, without being heated in an oven, sometimes generate gases, that is an overpressure m the container which without these microopenmgs could destroy the entire container.
  • a perforated portion of the container could be used to supplement the valve system according to the present invention.
  • it could constitute said second opening portion, that is the opening portion in the valve system that does not generate an acoustic signal.
  • the foodstuffs are prepared in their final containers in micro- wave tunnels. These containers should then be provided with a valve that can close after heating to prevent a flow into the container from occurring in the subsequent refrigeration when a negative pressure is automatically generated m the container. The same valve is used once more when the final user heats the container with its contents .
  • said first opening portion in the adhesive layer has the shape of a flap. This shape has been found particularly convenient for generating an acoustic signal.
  • Fig. Ia is a simple exploded view of a valve system according to an embodiment of the present invention.
  • Fig. 2a is a perspective view of a portion of the valve system according to the present invention m a first heating phase.
  • Fig. 2b is a side view of a container with a valve system according to Fig. 2a and in the same heating phase .
  • Fig. 3a is a perspective view of a portion of the valve system according to the present invention in a second heating phase.
  • Fig. 3b is a side view of a container with a valve system according to Fig. 3a and m the same heating phase.
  • Fig. 4a is a perspective view of a portion of the valve system according to the present invention m a third heating phase.
  • Fig. 4b is a side view of a container with a valve system according to Fig. 4a and in the same heating phase .
  • FIG. 1 A first opening portion 1 and a second opening portion 2 in an adhesive layer 3 are shown in Fig. 1.
  • the adhesive layer is adapted to be placed over a plastic film 4 which m turn is to cover a tray 5.
  • a slit 6 is formed, which m this embodiment is the opening portion of the container.
  • Figs 2a and 2b illustrate how the adhesive layer 3 has started to release the plastic film 4 around the opening 6 in the plastic film 4 when a certain overpressure has occurred m the container.
  • Figs 3a and 3b illustrate the next phase in heating when the overpressure m the container has made the adhesive layer 3 release the plastic film 4 so that ducts are formed all the way to three slits 2, which have formed three openings through which steam can flow.
  • Figs 4a and 4b illustrate the valve system when the contents of the container are sufficiently heated.
  • a greater flow out of the container than in the previous phase has been produced, which has made the adhesive layer 3 further release the plastic film 4 so that a duct is formed all the way to a flap-shaped slit 1.
  • the "flap" is made to oscillate, which oscillating generates an acoustic signal.
  • the relative position of the slit 1 and the slits 2 results in the openings formed by the slits 2 being closed when the slit 1 forms an opening .
  • the slit or slits in the adhesive layer which constitute the second opening portion could, of course, be formed in other ways than as straight cuts, for example with a wave shape or arch shape. It is also possible to design both opening portions to generate sound, although with, for example, different tones so "that the first tone signals that there is still some time left until the food is ready to eat.
  • An alternative would also be that, for example, one and the same slit in the adhesive layer is used for opening in a first phase, in which case the slit in additional heating opens further so as to generate an acoustic signal or alternatively change the character of the acoustic signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Package Specialized In Special Use (AREA)
  • Cookers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

Système de valve pour un récipient (4, 5), particulièrement pour récipients alimentaires dont les contenus sont destinés à être chauffés, comprenant une couche adhésive (3) disposée au dessus d'une partie d'ouverture (6) dans le récipient (4). La couche adhésive (3) est configurée pour au moins partiellement libérer le récipient (4) près d'une partie d'ouverture (1) dans la couche adhésive en cas de surpression et donc forme une ouverture afin de permettre un flux sortant du récipient (4, 5) et, dans ce flux sortant, émet un signal acoustique au moyen de ladite partie d'ouverture (1) dans la couche adhésive (3) qui est conçue pour osciller sous l'action du flux. Le système de valve comprend au moins un seconde partie d'ouverture (2) configurée pour, lors du chauffage des contenus du récipient (4, 5), s'ouvrir avant la partie d'ouverture (1) mentionnée ci-dessus dans la couche adhésive (3).
PCT/SE2007/000111 2006-02-10 2007-02-07 Ensemble systeme de valve WO2007091951A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07709327A EP1981780A4 (fr) 2006-02-10 2007-02-07 Ensemble systeme de valve
US12/086,752 US20090166362A1 (en) 2006-02-10 2007-02-07 Package Valve System

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0600306-5 2006-02-10
SE0600306A SE528522C2 (sv) 2006-02-10 2006-02-10 Ventilsystem för en förpackning

Publications (1)

Publication Number Publication Date
WO2007091951A1 true WO2007091951A1 (fr) 2007-08-16

Family

ID=37491823

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2007/000111 WO2007091951A1 (fr) 2006-02-10 2007-02-07 Ensemble systeme de valve

Country Status (4)

Country Link
US (1) US20090166362A1 (fr)
EP (1) EP1981780A4 (fr)
SE (1) SE528522C2 (fr)
WO (1) WO2007091951A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVA20090004A1 (it) * 2009-01-20 2010-07-21 Masterpack S P A Dispositivo di rilascio controllato di vapori durante riscaldamento/cottura di preparati alimentari confezionati in contenitore ermetico
KR20140034851A (ko) * 2011-07-06 2014-03-20 믹파크 아베 음식 패키지
WO2016071163A1 (fr) 2014-11-04 2016-05-12 Micvac Ab Procédé et four pour cuisson sous vide
WO2016128556A1 (fr) 2015-02-12 2016-08-18 Micvac Ab Procédé de cuisson et de stérilisation
WO2019215371A1 (fr) 2018-05-10 2019-11-14 Terron Garcia Pedro Vanne temporisée avec alarme
WO2024120874A1 (fr) * 2022-12-07 2024-06-13 Micvac Ab Soupape unidirectionnelle pour emballage alimentaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10464721B2 (en) * 2016-06-22 2019-11-05 Honest Food Co., Ltd. Vapor-tight container
JP7084821B2 (ja) * 2018-08-10 2022-06-15 株式会社Ｊｓｐパッケージング 電子レンジ加熱用包装容器の蓋及び電子レンジ加熱用包装容器

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Publication number Priority date Publication date Assignee Title
EP0288862A1 (fr) * 1987-04-18 1988-11-02 Kabushiki Kaisha Nakamuraya Récipient équipé d'un sifflet pour la cuisson d'aliments
JPH02180219A (ja) * 1988-12-31 1990-07-13 Kyoko Mizoguchi 電子レンジ用容器
JPH11208740A (ja) * 1998-01-23 1999-08-03 Nissin Food Prod Co Ltd 電子レンジ調理用食品包装体
WO2002087993A1 (fr) * 2001-04-30 2002-11-07 Micvac Ab Clapet anti-retour
WO2004106190A1 (fr) * 2003-05-30 2004-12-09 Micvac Ab Robinet
US20050199630A1 (en) * 2002-03-18 2005-09-15 Joel Haamer Single-use one-way valve for food package that emits sound signal at sufficient heating

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EP1289744B1 (fr) * 2000-06-01 2009-10-14 Irene Lin Procede de production d'un film multicouche permeable a l'air
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JP4606716B2 (ja) * 2003-09-05 2011-01-05 東洋製罐株式会社 開口時に発音する自動開口電子レンジ用包装袋
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288862A1 (fr) * 1987-04-18 1988-11-02 Kabushiki Kaisha Nakamuraya Récipient équipé d'un sifflet pour la cuisson d'aliments
JPH02180219A (ja) * 1988-12-31 1990-07-13 Kyoko Mizoguchi 電子レンジ用容器
JPH11208740A (ja) * 1998-01-23 1999-08-03 Nissin Food Prod Co Ltd 電子レンジ調理用食品包装体
WO2002087993A1 (fr) * 2001-04-30 2002-11-07 Micvac Ab Clapet anti-retour
US20050199630A1 (en) * 2002-03-18 2005-09-15 Joel Haamer Single-use one-way valve for food package that emits sound signal at sufficient heating
WO2004106190A1 (fr) * 2003-05-30 2004-12-09 Micvac Ab Robinet

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 453 28 September 1990 (1990-09-28) *
See also references of EP1981780A4 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVA20090004A1 (it) * 2009-01-20 2010-07-21 Masterpack S P A Dispositivo di rilascio controllato di vapori durante riscaldamento/cottura di preparati alimentari confezionati in contenitore ermetico
KR20140034851A (ko) * 2011-07-06 2014-03-20 믹파크 아베 음식 패키지
JP2014523377A (ja) * 2011-07-06 2014-09-11 ミクバク・エービー 食品パッケージ
KR101882705B1 (ko) 2011-07-06 2018-07-27 믹파크 아베 음식 패키지
WO2016071163A1 (fr) 2014-11-04 2016-05-12 Micvac Ab Procédé et four pour cuisson sous vide
US10588445B2 (en) 2014-11-04 2020-03-17 Micvac Ab Method and oven for vacuum cooking
WO2016128556A1 (fr) 2015-02-12 2016-08-18 Micvac Ab Procédé de cuisson et de stérilisation
WO2019215371A1 (fr) 2018-05-10 2019-11-14 Terron Garcia Pedro Vanne temporisée avec alarme
US20210307561A1 (en) * 2018-05-10 2021-10-07 Pedro TERRÓN GARCÍA Time-controlled valve with warning system
WO2024120874A1 (fr) * 2022-12-07 2024-06-13 Micvac Ab Soupape unidirectionnelle pour emballage alimentaire

Also Published As

Publication number Publication date
SE0600306L (sv) 2006-12-05
EP1981780A1 (fr) 2008-10-22
SE528522C2 (sv) 2006-12-05
EP1981780A4 (fr) 2009-11-11
US20090166362A1 (en) 2009-07-02

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