EP0088731B1 - Valve for the escape of vapour from a container - Google Patents
Valve for the escape of vapour from a container Download PDFInfo
- Publication number
- EP0088731B1 EP0088731B1 EP83810089A EP83810089A EP0088731B1 EP 0088731 B1 EP0088731 B1 EP 0088731B1 EP 83810089 A EP83810089 A EP 83810089A EP 83810089 A EP83810089 A EP 83810089A EP 0088731 B1 EP0088731 B1 EP 0088731B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- cover sheet
- container
- water
- valve
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000003303 reheating Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
Definitions
- the subject of the invention is a semi-rigid container intended for heating its contents, in particular a prepared dish, by immersion in hot water and comprising a detachable cover sheet, a portion of the internal face of which is covered with a microporous film.
- Patent application DE-A-2,318,028 describes a food container consisting of a rigid part and a cover sheet: comprising an external film secured to an internal film by means of an adhesive layer .
- the outer film of the cover sheet is detached, the inner film is then exposed to the atmosphere in order to allow the passage of gases or vapors. If such a container can allow the heating of its contents while avoiding an overpressure due to the production of gases or vapors, it cannot on the other hand solve the problem posed during the heating by immersion in hot water.
- the invention advantageously solves this problem by proposing a semi-rigid container, the cover sheet of which is designed in such a way that a small portion of microporous film is put into working condition just before the container and its contents are heated, for immersion in hot water.
- the container according to the invention is characterized in that the film is hermetically sealed on a portion of the internal face of the cover sheet, that said cover sheet is arranged so that a small portion of it is detached according to a pre-established rupture line to discover a corresponding surface of the film, and in that the film is made of a material making it water-resistant and at the same time permeable to gases and vapors and impermeable to liquids and colloids.
- the object of the invention described below comprises a thin porous film which allows the vapors formed during the heating of the contents to escape, and which prevents the medium used for the heating (usually water) from entering the container.
- Fig. 1 is a transverse view of the cover sheet of the container according to the invention, describing in particular the detail of the sheet portion covered by the film.
- Fig. 2 is a transverse view of the system shown in FIG. 1 after removal of the protective sheet.
- Fig.3 is a top view of the portion of cover sheet comprising the film.
- Fig. 4 is an example of a container provided with a detachable cover sheet.
- a tear line (1) which is completely independent of the tear line along which the container is opened makes it possible to lift a portion of the cover sheet (15) thus creating an opening which remains however closed by a film. (5) welded to the inner surface of the cover sheet.
- the cover sheet comprises three main components: an external film with low elasticity (2) covered with a plastic layer (3), this plastic layer (3) being sealed to a film (4) having the same composition.
- the film (4) is a composite film with several layers, it is essential that the outer layer of this film has the same composition as the plastic layer (3).
- the film (5) is made of the same material as the film (4), or the inner layer of the film (4), and it is hermetically sealed to this film by welding at the area (7) characterized by a hollow ( 6).
- the weld path is represented by the dotted area (8).
- the film (5) is made from well known microporous films resistant to the penetration of water.
- an incision (1) constituting the pre-established rupture line is made inside the zone delimited by the line (7) which corresponds to the weld line of the film (5).
- the weld line (8) along which the film (2) is welded to the film (4) via the plastic layer (3) -this weld line (8) corresponds to the weld zone (14) and in the hollow (8) of the transverse view shown in FIG. 1 -coincides with most of the course of the incision (1), except for the opening tab, where the weld line (8) ends in a point at which the tearing begins.
- the film (5) is exposed just before the container and its contents are reheated.
- the film (5) allows the vapor produced inside the container during heating to exit, while preventing the liquid from escaping, or the water used for heating to return.
- the pressure normally produced during heating is thus reduced, and the container can be opened without splashing of hot liquid.
- the outer film (2) is made of a material with low elasticity such as aluminum, paper, certain plastics or other materials with low elasticity.
- the film (2) is provided with a thin adhesive layer (3) made of the same thermoplastic substance as the internal film (4). In a preliminary operation, an incision is made in the film (2) and the adhesive layer (3), the outline of which corresponds to the predetermined breaking line (1) along which the sheet will be torn.
- the film (2) is welded to the film (4) via the adhesive layer (3).
- the film has a biaxial molecular orientation.
- the thermoplastic film is melted, which largely destroys the molecular orientation to which the film essentially owes its breaking strength.
- the welding area is further weakened by the hollow formed under the effect of the pressure exerted during the welding operation. Notches produced for example by edges or by other patterns of the welding tool can further increase the weakness of the weld line.
- the tab of the cover sheet is detached by gripping it with your fingers.
- the tear begins at the tip formed by the weld line (8) and then propagates along the pre-established rupture line (1) until the entire portion of sheet surrounded by this line is detached.
- the object of the invention is to prevent digestion due to overpressure in containers, and in particular those filled with food products which must be reheated before consumption, generally by immersion in boiling water.
- the film (5) hermetically welded to the cover sheet before use; before or after the container has been reheated, the cover sheet is detached, thereby exposing the film (5) made of a microporous or porous thermoplastic film welded to the internal surface of the cover sheet.
- the film (5) is permeable to water vapor, but impermeable to water. This prevents the warming water from mixing with the contents of the container, and that this content gushes out upon opening.
Abstract
Description
L'invention a pour objet un récipient semi-rigide destiné au réchauffement de son contenu, en particulier un plat préparé, par immersion dans de l'eau chaude et comportant une feuille de couverture détachable dont une portion de la face interne est recouverte d'un film microporeux.The subject of the invention is a semi-rigid container intended for heating its contents, in particular a prepared dish, by immersion in hot water and comprising a detachable cover sheet, a portion of the internal face of which is covered with a microporous film.
La demande de brevet DE-A-2.318.028 décrit un récipient pour aliments se composant d'une partie rigide et d'un feuille de couverture : comprenant un film externe solidaire d'un film interne par l'intermediaire d'une couche adshésive. Lorsque le film externe de la feuille de couverture est détaché, le film interne est alors exposé à l'atmosphère afin de permettre le passage des gaz ou des vapeurs. Si un tel récipient peut autoriser le réchauffement de son contenu en évitant une surpression due à la production de gaz ou des vapeurs, il ne peut par contre résoudre le problème posé lors du réchauffement par immersion dans de l'eau chaude.Patent application DE-A-2,318,028 describes a food container consisting of a rigid part and a cover sheet: comprising an external film secured to an internal film by means of an adhesive layer . When the outer film of the cover sheet is detached, the inner film is then exposed to the atmosphere in order to allow the passage of gases or vapors. If such a container can allow the heating of its contents while avoiding an overpressure due to the production of gases or vapors, it cannot on the other hand solve the problem posed during the heating by immersion in hot water.
L'invention résout avantageusement ce problème en proposant un récipient semi-rigide dont la feuille de couverture est conçue de façon telle qu'une petite portion de film microporeux soit mise en état de fonctionner juste avant le réchauffement du récipient et de son contenu, par immersion dans de l'eau chaude.The invention advantageously solves this problem by proposing a semi-rigid container, the cover sheet of which is designed in such a way that a small portion of microporous film is put into working condition just before the container and its contents are heated, for immersion in hot water.
Le récipient selon l'invention est caractérisé en ce que le film est hermétiquement scellé sur une portion de la face interne de la feuille de couverture , que ladite feuille de couverture est agencée pour qu'une petite portion de celle-ci soit détachée selon une ligne de rupture préétablie pour découvrir une surface correspondante du film , et en ce que le film est constitué d'une matière le rendant résistant à l'eau et tout à la fois perméable aux gaz et aux vapeurs et imperméable aux liquides et aux colloïdes.The container according to the invention is characterized in that the film is hermetically sealed on a portion of the internal face of the cover sheet, that said cover sheet is arranged so that a small portion of it is detached according to a pre-established rupture line to discover a corresponding surface of the film, and in that the film is made of a material making it water-resistant and at the same time permeable to gases and vapors and impermeable to liquids and colloids.
L'objet de l'invention décrite ci-dessous comporte un film mince poreux qui permet aux vapeurs formées durant le réchauffement du contenu de s'echapper, et qui empêche le milieu utilisé pour le réchauffement (habituellement l'eau) de pénétrer dans le récipient.The object of the invention described below comprises a thin porous film which allows the vapors formed during the heating of the contents to escape, and which prevents the medium used for the heating (usually water) from entering the container.
La dilatation du liquide et son évaporation lorsqu'un plat préparé mis dans un récipient semi-rigide est réchauffé produit une surpression qui provoque le jaillissement de liquide chaud au moment de l'ouverture du récipient. Ceci peut amener des restrictions à l'emploi de plats préparées, qui par ailleurs sont très commodes.The expansion of the liquid and its evaporation when a prepared dish placed in a semi-rigid container is reheated produces an overpressure which causes the hot liquid to spurt out when the container is opened. This can lead to restrictions on the use of prepared meals, which, moreover, are very convenient.
La Fig. 1 est une vue transversale de la feuille de couverture du récipient selon l'invention, décrivant notamment le détail de la portion de feuille recouverte par le film.Fig. 1 is a transverse view of the cover sheet of the container according to the invention, describing in particular the detail of the sheet portion covered by the film.
La Fig. 2 est une vue transversale du système représenté sur la Fig. 1 après l'enlèvement de la feuille de protection.Fig. 2 is a transverse view of the system shown in FIG. 1 after removal of the protective sheet.
La Fig.3 est une vue d'en haut de la portion de feuille de couverture comportant le film.Fig.3 is a top view of the portion of cover sheet comprising the film.
La Fig. 4 est une exemple de récipient muni d'une feuille de couverture détachable.Fig. 4 is an example of a container provided with a detachable cover sheet.
Dans cette invention, une ligne de déchirure (1) qui est totalement indépendante de la ligne de déchirure suivant laquelle le récipient est ouvert permet de soulever une portion de la feuille de couverture (15) créant ainsi une ouverture qui reste toutefois fermée par une film (5) soudé sur la surface interne de la feuille de couverture.In this invention, a tear line (1) which is completely independent of the tear line along which the container is opened makes it possible to lift a portion of the cover sheet (15) thus creating an opening which remains however closed by a film. (5) welded to the inner surface of the cover sheet.
La feuille de couverture comprend trois composantes principales: un film externe à faible élasticité (2) recouvert d'une couche de plastique (3), cette couche de plastique (3) étant scellée à un film (4) ayant la même composition.The cover sheet comprises three main components: an external film with low elasticity (2) covered with a plastic layer (3), this plastic layer (3) being sealed to a film (4) having the same composition.
Lorsque le film (4) est un film composite à plusieurs couches, il est indispensable que la couche externe de ce film ait la même composition que la couche plastique (3).When the film (4) is a composite film with several layers, it is essential that the outer layer of this film has the same composition as the plastic layer (3).
La film (5) est constitué du même matériau que le film (4), ou la couche intérieure du film (4), et il est scellé hermétiquement à ce film par soudage au niveau de la zone (7) caractérisée par un creux (6). Le tracé de la soudure est représenté par la zone pointillée (8).The film (5) is made of the same material as the film (4), or the inner layer of the film (4), and it is hermetically sealed to this film by welding at the area (7) characterized by a hollow ( 6). The weld path is represented by the dotted area (8).
Le film (5) est fait à partir de films microporeux bien connus résistant à la pénétration de l'eau.The film (5) is made from well known microporous films resistant to the penetration of water.
Pendant l'opération de fabrication de la feuille de couverture pour le récipient, une incision (1) constituant la ligne de rupture préétablie est faite à l'intérieur de la zone délimitée par la ligne (7) qui correspond à la ligne de soudure du film (5). La ligne de soudure (8) suivant laquelle le film (2) est soudé au film (4) par l'intermédiaire de la couche plastique (3) -cette ligne de soudure (8) correspond à la zone de soudure (14) et au creux (8) de la vue transversale représentée sur la Fig. 1 -coïncide avec la majeure partie du tracé de l'incision (1), exception faite de la languette d'ouverture, où la ligne de soudure (8) se termine en une pointe à laquelle la déchirure débute.During the manufacturing operation of the cover sheet for the container, an incision (1) constituting the pre-established rupture line is made inside the zone delimited by the line (7) which corresponds to the weld line of the film (5). The weld line (8) along which the film (2) is welded to the film (4) via the plastic layer (3) -this weld line (8) corresponds to the weld zone (14) and in the hollow (8) of the transverse view shown in FIG. 1 -coincides with most of the course of the incision (1), except for the opening tab, where the weld line (8) ends in a point at which the tearing begins.
Lorsque la languette de la feuille da couverture est détachée suivant l'incision (1) et la ligne de soudure (8), le film (5) se trouve exposé, cette opération étant facilitée par l'incision (1).When the tab of the cover sheet is detached along the incision (1) and the weld line (8), the film (5) is exposed, this operation being facilitated by the incision (1).
Le film (5) est exposé juste avant qu'on réchauffe le récipient et son contenu. Le film (5) permet à la vapeur produite a l'interieur du récipient durant son réchauffement de sortir, tout en empêchant le liquide de s'échapper, ou à l'eau utilisée pour le réchauffement de rentrer. La pression normalement produite pendant le réchauffement se trouve ainsi réduite, et le récipient peut être ouvert sans que ne se produisent des projections de liquide chaud.The film (5) is exposed just before the container and its contents are reheated. The film (5) allows the vapor produced inside the container during heating to exit, while preventing the liquid from escaping, or the water used for heating to return. The pressure normally produced during heating is thus reduced, and the container can be opened without splashing of hot liquid.
Le film externe (2) est constitué d'un matériau à faible élasticité comme l'aluminium, le papier, certains plastiques ou d'autres matériaux à faible élasticité. Le film (2) est pourvu d'une couche fine adhésive (3) constituée de la même substance thermoplastique que le film interne (4). Dans une opération préliminaire, une incision est faite dans le film (2) et la couche adhésif (3) dont le tracé correspond à la ligne de rupture préétablie (1) suivant laquelle la feuille sera déchirée.The outer film (2) is made of a material with low elasticity such as aluminum, paper, certain plastics or other materials with low elasticity. The film (2) is provided with a thin adhesive layer (3) made of the same thermoplastic substance as the internal film (4). In a preliminary operation, an incision is made in the film (2) and the adhesive layer (3), the outline of which corresponds to the predetermined breaking line (1) along which the sheet will be torn.
Après cette opération d'incision, le film (2) est soudé au film (4) par l'intermédiaire de la couche adhésive (3). Comme c'est le cas de la majorité des films fabriqués par extrusion soufflage, le film possède une orientation moléculaire biaxiale. Lors du soudage, le film thermoplastique est fondu, ce qui détruit en grande partie l'orientation moléculaire à laquelle le film doit pour l'essentiel sa résistance à la rupture.After this incision operation, the film (2) is welded to the film (4) via the adhesive layer (3). As is the case with the majority of films produced by blow molding, the film has a biaxial molecular orientation. During welding, the thermoplastic film is melted, which largely destroys the molecular orientation to which the film essentially owes its breaking strength.
La zone de soudure est encore affaiblie par le creux formé sous l'effet de la pression exercée lors de l'operation de soudage. Des entailles produites par exemple par des arêtes ou par d'autres motifs de l'outil de soudage peuvent contribuer à augmenter encore la faiblesse de la ligne de soudre.The welding area is further weakened by the hollow formed under the effect of the pressure exerted during the welding operation. Notches produced for example by edges or by other patterns of the welding tool can further increase the weakness of the weld line.
La languette de la feuille de couverture est détachée en l'agrippant avec les doigts. La déchirure débute à la pointe que forme la ligne de soudure (8) et se propage ensuite suivant la ligne de rupture préétablie (1) jusqu'à ce que toute la portion de feuille entourée par cette ligne soit détachée.Durant cette opération, le film (4) se déchire le long de la soudure en suivant la ligne de rupture (1).The tab of the cover sheet is detached by gripping it with your fingers. The tear begins at the tip formed by the weld line (8) and then propagates along the pre-established rupture line (1) until the entire portion of sheet surrounded by this line is detached. film (4) tears along the weld following the rupture line (1).
L'objet de l'invention est d'empêcher les digâts dus à la surpression dans des récipients, et en particulier ceux remplis de produits alimentaires qui doivent être réchauffés avant leur consommation, généralement par immersion dans de l'eau bouillante. Le film (5) hermétiquement soudé à la feuille de couverture avant l'utilisation; avant ou après que le contenant ait été réchauffé, la feuille de couverture est détachée, exposant ainsi le film (5) constitué d'un film thermoplastique microporeux ou poreux soudé à la surface interne de la feuille de couverture. Le film (5) est perméable à la vapeur d'eau, mais imperméable à l'eau. Ceci empêche l'eau de réchauffement de se mélanger au contenu du récipient, et que ce contenu jaillisse au moment de l'ouverture.The object of the invention is to prevent digestion due to overpressure in containers, and in particular those filled with food products which must be reheated before consumption, generally by immersion in boiling water. The film (5) hermetically welded to the cover sheet before use; before or after the container has been reheated, the cover sheet is detached, thereby exposing the film (5) made of a microporous or porous thermoplastic film welded to the internal surface of the cover sheet. The film (5) is permeable to water vapor, but impermeable to water. This prevents the warming water from mixing with the contents of the container, and that this content gushes out upon opening.
Claims (1)
- Half rigid container for the reheating of its content especially a prepared dish, through immersion in warm water, including a removable cover sheet, of which a part of the internal side is covered with a porous or microporous film (5), characterized by the fact that the film (5) is hermetically sealed on a portion of the internal face of the cover sheet (15), that said cover sheet is provided in such a way that a small portion of it is removed along a predetermined break line (1) in order to uncover a corresponding area of the film (5) and that the film (5) consists of a material which makes it water-resistant and simultaneously permeable to gas and damps and tight to liquids and colloids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83810089T ATE23837T1 (en) | 1982-03-05 | 1983-03-04 | STEAM RELEASE VALVE FOR PACKAGING. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH134082 | 1982-03-05 | ||
| CH1340/82 | 1982-03-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0088731A1 EP0088731A1 (en) | 1983-09-14 |
| EP0088731B1 true EP0088731B1 (en) | 1986-11-26 |
Family
ID=4208190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83810089A Expired EP0088731B1 (en) | 1982-03-05 | 1983-03-04 | Valve for the escape of vapour from a container |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4461420A (en) |
| EP (1) | EP0088731B1 (en) |
| JP (1) | JPS58171362A (en) |
| AT (1) | ATE23837T1 (en) |
| CA (1) | CA1193512A (en) |
| DE (1) | DE3367895D1 (en) |
| DK (1) | DK104083A (en) |
| FI (1) | FI830712L (en) |
| GR (1) | GR77954B (en) |
| NO (1) | NO830724L (en) |
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| US8663188B2 (en) | 2007-12-28 | 2014-03-04 | Aktivpak, Inc. | Dispenser and therapeutic package suitable for administering a therapeutic substance to a subject, along with method relating to same |
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| JPH0825583B2 (en) * | 1986-03-27 | 1996-03-13 | ハウス食品株式会社 | Sealed container for cooking |
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| DE3726162A1 (en) * | 1987-08-06 | 1989-02-16 | Bosch Gmbh Robert | PACKAGING CONTAINER WITH Tear-off device |
| JPH0272828A (en) * | 1988-03-10 | 1990-03-13 | Isamu Miya | Method for simple roasting of coffee bean |
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| WO2010054023A1 (en) * | 2008-11-04 | 2010-05-14 | William Cho | Pressure relief system |
| US20100175850A1 (en) * | 2009-01-09 | 2010-07-15 | Kaucic Edward M | Relief Vent for a Hot Fill Fluid Container |
| EP3406433A1 (en) | 2012-01-23 | 2018-11-28 | Apio, Inc. | Atmosphere control around respiring biological materials |
| US9427710B2 (en) * | 2013-03-15 | 2016-08-30 | Bemis Company, Inc. | Radial filtration vent and medical device packaging |
| EP3377319B1 (en) | 2015-11-17 | 2022-01-05 | Amcor Flexibles France SAS | Method for ripening or heat treating packaged food |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3083861A (en) * | 1960-05-27 | 1963-04-02 | Lily Tulip Cup Corp | Vented container closure lids |
| FR1333994A (en) * | 1962-07-17 | 1963-08-02 | Hermorion Ltd | Packaging intended to contain sterilized milk |
| US3158491A (en) * | 1963-02-26 | 1964-11-24 | American Can Co | Food container |
| US3298505A (en) * | 1965-02-12 | 1967-01-17 | Brown Co | Laminated closure for food trays and trays closed with same |
| US3432087A (en) * | 1966-09-01 | 1969-03-11 | Alfred P Costello | Package valve |
| US3410395A (en) * | 1967-07-14 | 1968-11-12 | Gen Binding Corp | Steam sterilizable package and method of making the same |
| US3547257A (en) * | 1968-01-22 | 1970-12-15 | American Hospital Supply Corp | Package for sterile article |
| DE2109940A1 (en) * | 1970-03-26 | 1971-10-14 | Fa J Plaut, Wien | Anti dirt, water and atmospheric corrosion coating |
| US3716180A (en) * | 1970-06-01 | 1973-02-13 | Robalex Inc | Packaging |
| US3806618A (en) * | 1971-02-21 | 1974-04-23 | Robalex Inc | Method of heating a package of food |
| DE2209393C2 (en) * | 1971-02-26 | 1984-06-28 | Christenssons Maskiner & Patenter AB, 16130 Stockholm | Vacuum-tight pack with cover film with opener tab - having tabbed liner initiating tearing along line round edge |
| SE350945B (en) * | 1971-03-01 | 1972-11-13 | Christenssons Maskiner | |
| US4055672A (en) * | 1972-04-10 | 1977-10-25 | Standard Packaging Corporation | Controlled atmosphere package |
| GB1392580A (en) * | 1972-04-10 | 1975-04-30 | Standard Packaging Corp | Controlled atmosphere package |
| US3946780A (en) * | 1973-01-04 | 1976-03-30 | Sellers John C | Fermentation container |
| US4136796A (en) * | 1974-04-11 | 1979-01-30 | Greif Bros. Corporation | Vented closure |
| GB1520511A (en) * | 1975-04-18 | 1978-08-09 | Heinz Co H J | Production of mushroom spawn |
| DE2539351A1 (en) * | 1975-09-04 | 1977-03-10 | Mardon Flexible Packaging Ltd | Multi layer protective packaging material - has removable flexible opaque outer layer covering inner transparent layer |
| US4096948A (en) * | 1977-03-18 | 1978-06-27 | American Can Company | Cook-in carton with integral removable section and blank therefor |
| FR2428583B1 (en) * | 1978-06-16 | 1985-07-12 | Somycel Sa | STERILIZABLE BAG MADE OF A PLASTIC SHEET FOR THE PRODUCTION OF MUSHROOM WHITE |
-
1982
- 1982-10-22 US US06/436,181 patent/US4461420A/en not_active Expired - Fee Related
-
1983
- 1983-02-28 DK DK104083A patent/DK104083A/en not_active Application Discontinuation
- 1983-03-02 FI FI830712A patent/FI830712L/en not_active Application Discontinuation
- 1983-03-03 NO NO830724A patent/NO830724L/en unknown
- 1983-03-04 AT AT83810089T patent/ATE23837T1/en not_active IP Right Cessation
- 1983-03-04 DE DE8383810089T patent/DE3367895D1/en not_active Expired
- 1983-03-04 EP EP83810089A patent/EP0088731B1/en not_active Expired
- 1983-03-04 JP JP58036522A patent/JPS58171362A/en active Pending
- 1983-03-04 CA CA000422885A patent/CA1193512A/en not_active Expired
- 1983-03-04 GR GR70677A patent/GR77954B/el unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8663188B2 (en) | 2007-12-28 | 2014-03-04 | Aktivpak, Inc. | Dispenser and therapeutic package suitable for administering a therapeutic substance to a subject, along with method relating to same |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE23837T1 (en) | 1986-12-15 |
| DK104083D0 (en) | 1983-02-28 |
| GR77954B (en) | 1984-09-25 |
| NO830724L (en) | 1983-09-06 |
| FI830712L (en) | 1983-09-06 |
| CA1193512A (en) | 1985-09-17 |
| DK104083A (en) | 1983-09-06 |
| EP0088731A1 (en) | 1983-09-14 |
| DE3367895D1 (en) | 1987-01-15 |
| FI830712A0 (en) | 1983-03-02 |
| JPS58171362A (en) | 1983-10-08 |
| US4461420A (en) | 1984-07-24 |
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