EP0088731B1 - Soupape pour l'évacuation de la vapeur d'un contenant - Google Patents

Soupape pour l'évacuation de la vapeur d'un contenant Download PDF

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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
Application number
EP83810089A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0088731A1 (fr
Inventor
Laszlo Sandor Horvath
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.)
C O D INTER TECHNIQUES
Original Assignee
C O D INTER TECHNIQUES
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 C O D INTER TECHNIQUES filed Critical C O D INTER TECHNIQUES
Priority to AT83810089T priority Critical patent/ATE23837T1/de
Publication of EP0088731A1 publication Critical patent/EP0088731A1/fr
Application granted granted Critical
Publication of EP0088731B1 publication Critical patent/EP0088731B1/fr
Expired legal-status Critical Current

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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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Temperature-Responsive Valves (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Cookers (AREA)
  • Closures For Containers (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
EP83810089A 1982-03-05 1983-03-04 Soupape pour l'évacuation de la vapeur d'un contenant Expired EP0088731B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810089T ATE23837T1 (de) 1982-03-05 1983-03-04 Dampfablassventil fuer verpackungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1340/82 1982-03-05
CH134082 1982-03-05

Publications (2)

Publication Number Publication Date
EP0088731A1 EP0088731A1 (fr) 1983-09-14
EP0088731B1 true EP0088731B1 (fr) 1986-11-26

Family

ID=4208190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810089A Expired EP0088731B1 (fr) 1982-03-05 1983-03-04 Soupape pour l'évacuation de la vapeur d'un contenant

Country Status (10)

Country Link
US (1) US4461420A (enExample)
EP (1) EP0088731B1 (enExample)
JP (1) JPS58171362A (enExample)
AT (1) ATE23837T1 (enExample)
CA (1) CA1193512A (enExample)
DE (1) DE3367895D1 (enExample)
DK (1) DK104083A (enExample)
FI (1) FI830712L (enExample)
GR (1) GR77954B (enExample)
NO (1) NO830724L (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0825583B2 (ja) * 1986-03-27 1996-03-13 ハウス食品株式会社 加熱調理用密封容器
JPS63152638A (ja) * 1986-10-06 1988-06-25 アプライド・エクストルージョン・テクノロジーズ・インコーポレーテッド 調整雰囲気の包装用フィルム
DE3726162A1 (de) * 1987-08-06 1989-02-16 Bosch Gmbh Robert Verpackungsbehaelter mit aufreisseinrichtung
JPH0272828A (ja) * 1988-03-10 1990-03-13 Isamu Miya 珈琲豆の簡易焙煎方法
US4923703A (en) * 1988-03-14 1990-05-08 Hercules Incorporated Container comprising uniaxial polyolefin/filler films for controlled atmosphere packaging
US4910032A (en) * 1988-11-16 1990-03-20 Hercules Incorporated Water-permeable controlled atmosphere packaging device from cellophane and microporous film
US5407087A (en) * 1992-12-30 1995-04-18 Lever Brothers Company, Division Of Conopco, Inc. Venting closure
US5547694A (en) * 1993-03-23 1996-08-20 The Pillsbury Company Container for refrigeratable yeast-leavened doughs
WO1996038495A1 (en) 1995-05-30 1996-12-05 Landec Corporation Gas-permeable membrane
US6013293A (en) * 1997-09-10 2000-01-11 Landec Corporation Packing respiring biological materials with atmosphere control member
US6548132B1 (en) 1998-07-23 2003-04-15 Landec Corporation Packaging biological materials
GB2353986A (en) * 1999-09-10 2001-03-14 Tecksom Internat Ltd Openable sealing of container mouth
US7601374B2 (en) 2000-09-26 2009-10-13 Landec Corporation Packaging of respiring biological materials
US8110232B2 (en) * 2000-09-26 2012-02-07 Apio, Inc. Packaging of bananas
US7004632B2 (en) * 2003-03-31 2006-02-28 The Glad Products Company Ventable storage bag
US20080176036A1 (en) * 2003-04-25 2008-07-24 Mitchell Melvin G Micro-perforated laminae and method
US20040213956A1 (en) * 2003-04-25 2004-10-28 Rutherford Sales & Recovery Co., Inc. Perforated film with liquid retention and gas/vapor venting characteristics for packaging
SE527398C2 (sv) * 2003-05-30 2006-02-28 Micvac Ab Envägsventil för livsmedelsförpackning
US7160590B2 (en) * 2003-08-18 2007-01-09 Advanced Technology Materials, Inc. Packaging including a composite web comprising porous layer
US20050050854A1 (en) * 2003-09-09 2005-03-10 Jean-Pascal Zambaux Sterile, pyrogen-free, polymeric film-based heating bag
DE102006017834A1 (de) * 2006-04-13 2007-10-18 Cfs Kempten Gmbh Eine mikrowellengeeignete Verpackung
EP2104525A4 (en) 2006-12-29 2010-12-29 Amir Genosar HYPODERMIC RESERVOIR AND APPARATUS FOR DRUG DELIVERY
US20100108671A1 (en) * 2008-11-04 2010-05-06 William Cho Pressure Relief System
WO2010081081A2 (en) * 2009-01-09 2010-07-15 Porex Corporation Relief vent for a hot fill fluid container
WO2013112636A1 (en) 2012-01-23 2013-08-01 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
WO2017084762A1 (en) 2015-11-17 2017-05-26 Amcor Flexibles France Sas Method for ripening or heat treating packaged food

Family Cites Families (20)

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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 (fr) * 1962-07-17 1963-08-02 Hermorion Ltd Emballage appelé à contenir du lait stérilisé
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 (de) * 1971-02-26 1984-06-28 Christenssons Maskiner & Patenter AB, 16130 Stockholm Deckfolie zum dichten Verschließen gefüllter becherartiger Behälter
SE350945B (enExample) * 1971-03-01 1972-11-13 Christenssons Maskiner
GB1392580A (en) * 1972-04-10 1975-04-30 Standard Packaging Corp Controlled atmosphere package
US4055672A (en) * 1972-04-10 1977-10-25 Standard Packaging Corporation 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 (de) * 1975-09-04 1977-03-10 Mardon Flexible Packaging Ltd Verpackungskonstruktion
US4096948A (en) * 1977-03-18 1978-06-27 American Can Company Cook-in carton with integral removable section and blank therefor
FR2428583B1 (fr) * 1978-06-16 1985-07-12 Somycel Sa Sac sterilisable realise dans une feuille de matiere plastique et destine a la production de blanc de champignon

Cited By (1)

* Cited by examiner, † Cited by third party
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
DE3367895D1 (en) 1987-01-15
GR77954B (enExample) 1984-09-25
ATE23837T1 (de) 1986-12-15
US4461420A (en) 1984-07-24
DK104083A (da) 1983-09-06
EP0088731A1 (fr) 1983-09-14
FI830712A0 (fi) 1983-03-02
FI830712A7 (fi) 1983-09-06
JPS58171362A (ja) 1983-10-08
CA1193512A (en) 1985-09-17
NO830724L (no) 1983-09-06
DK104083D0 (da) 1983-02-28
FI830712L (fi) 1983-09-06

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