EP1254850B1 - Automatische Verschlussanordnung mit Heissschmeltzmaterial - Google Patents

Automatische Verschlussanordnung mit Heissschmeltzmaterial Download PDF

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Publication number
EP1254850B1
EP1254850B1 EP01110740A EP01110740A EP1254850B1 EP 1254850 B1 EP1254850 B1 EP 1254850B1 EP 01110740 A EP01110740 A EP 01110740A EP 01110740 A EP01110740 A EP 01110740A EP 1254850 B1 EP1254850 B1 EP 1254850B1
Authority
EP
European Patent Office
Prior art keywords
valve
pipe
chamber
packaging
seat
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 - Lifetime
Application number
EP01110740A
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English (en)
French (fr)
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EP1254850A1 (de
Inventor
James Gabriel Maurice Coupe
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.)
BK SC
Original Assignee
BK SC
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Filing date
Publication date
Application filed by BK SC filed Critical BK SC
Priority to DE60107537T priority Critical patent/DE60107537T2/de
Priority to EP01110740A priority patent/EP1254850B1/de
Priority to AT01110740T priority patent/ATE283806T1/de
Publication of EP1254850A1 publication Critical patent/EP1254850A1/de
Application granted granted Critical
Publication of EP1254850B1 publication Critical patent/EP1254850B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D81/34—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
    • 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
    • B65D2205/00—Venting means

Definitions

  • the invention relates to an automatic closing device intended to be fixed so sealed through a wall of a packaging for food products to be cooked at least in part in situ, ie in a package according to the preamble of claim 1.
  • the invention also relates to all packaging for food product equipped with such an automatic closing device and all food preparation packaged in such packaging.
  • Pre-cooked foods or food preparations are in increasing demand.
  • the producing such packaging poses problems, in particular on an industrial scale.
  • French patent application No. 2 629 060 describes an automatic shutter system equipping the packaging in which food can be cooked.
  • This device includes a simple valve allowing steam and gases produced during cooking to escape freely during this cooking.
  • the device in principle prevents outside air from entering in the packaging upon cooling. Indeed, during cooling the condensation of the vapor in the bag creates a depression which causes the closure of the valve.
  • the device is however too rudimentary and does not allow to reach a reliability sufficient for industrial operation.
  • the valve may open during of the storage period, making the packaging lose its quality as a sterile container. So, a significant proportion of production risks losing the benefit of in situ pasteurization and certain food preparations may be unfit for consumption at the time of opening the package.
  • French patent application No. 2 719 028 describes a packaging for a product.
  • food capable of receiving food to be cooked at least partially in situ according to the preamble of claim 1. It is provided with a more reliable automatic closing device than that mentioned above because it contains a thermofusible product capable of engaging, when melted, in a channel of small section opening directly inside the packaging. When this channel is closed by the hot-melt material during the cooling which follows the cooking of the food, (in because of the condensation and the vacuum that is created inside the packaging, attracting the hot melt material in said small section channel) the inside of the package is isolated after pasteurization, allowing a durable and quality conservation of the products conditioned this way.
  • the invention proposes a modified structure of such an automatic closing device, avoiding the above mentioned drawback and therefore increasing the reliability of the packaging process.
  • the invention relates to an automatic closing device intended to be tightly fixed through a wall of a package for cooking food products at least partly in situ, comprising a housing enclosing a chamber containing a block of hot-melt material, a valve movable relative to a seat arranged around the orifice of a duct and a closable channel capable of being blocked by a displacement of said material hot melt melted then cooled, characterized in that said chamber and said conduit communicate with the outside of said housing and in that said closable channel is arranged between said chamber and a clearance space of said valve.
  • the chamber, the channel, the seat and the conduit are arranged coaxially with each other. around others.
  • the room communicates with the outside of the case by at least a small relatively small section duct, which in particular makes it possible to prevent material hot melt is dragged outside and lost during cooking by being expelled by hot gases escaping at this time.
  • the device is very simple, its housing consists of an assembly of only two pieces fitting coaxially one inside the other and welded to each other.
  • a first part has the shape of a cup with a circular outline comprising a central chimney made of material and in which said duct and said seat are defined.
  • a second part has the form of a cover which closes said cup. This cover is extended by an axial tubular partition made of material. Said closable channel is defined between the inner wall of said tubular partition and the outer wall of said chimney Central.
  • This self-closing device is in the form of a small material insert rigid plastic and can be adapted to any type of packaging known from flexible plastic or rigid, for example, bags or trays.
  • filling a food preparation can be carried out at atmospheric pressure and at any temperature, with raw, cooked or pre-processed food.
  • Cooking or the final phase of cooking takes place in the packaging but the valve remains open and the food is not isolated from the cooker in the cooking cycle.
  • air, water vapor and gaseous products released by the food itself during cooking can escape freely from the packaging so that the food is cooked exactly as if it were arranged in loose in the cooker.
  • the hot-melt material solidifies in said channel closable.
  • the valve not only has the function of preventing the air intake after cooking but also that of limiting and stopping the progression of the material hot melt in the closable channel and therefore prevent its aspiration into the packaging itself. It is ensured that the hot-melt material solidifies well in said closable channel.
  • the invention also relates to any packaging for food products suitable for receiving food to be cooked at least partially in situ, characterized in that it comprises a container and a automatic closing device as defined above, tightly fixed to the through a wall of said container so that the aforementioned conduit opens into the interior of said container.
  • the invention also relates to any conditioned food preparation, precooked in a packaging, the latter being hermetically sealed at the end of cooking, comprising, fixed sealingly through a wall thereof, an automatic closing device according to the above definition whose aforementioned closable channel is blocked by material solid state hot-melt.
  • the hot-melt material may consist of a paraffin "doped" with a synthetic product with polyethylene base, known per se.
  • FIG 1 there is shown a food preparation 11 packaged for a deferred consumption.
  • the packaging was carried out in a packaging consisting here of a bag 12 of flexible plastic material, itself formed from two sheets of plastic material heat-sealed to each other to include food.
  • a peripheral heat seal 13 imprint, materializing the bag.
  • This guy packaging can easily consist of an automated packaging machine in which the food is deposited between two films of thermoplastic materials, at the atmospheric pressure, before the bags are identified by the operation of heat welding.
  • One of the walls of the bag 12 is provided with an automatic closing device 15 fixed sealingly (for example by heat sealing also) through said wall. This device makes it possible to at least partially cook the food in the bag 12, that is to say after the conditioning operation leading to the formation of the weld 13.
  • FIGs 2 to 5 illustrate in detail the structure of the closure device automatic 15.
  • This comes in the general form of a plastic insert rigid mounted through a hole 16 in a wall 12a of the bag 12. It is provided with a flange annular 17 hermetically welded to this wall 12a.
  • the housing 18 of the device automatic closing consists of the assembly of two parts 19 and 20 fitting together coaxially one inside the other. These two parts are welded peripherally after their slipcase.
  • the housing 18 contains a chamber 22 containing a block of hot-melt material 24.
  • This chamber communicates with the outside of the case and in this case also with the outside of packaging by at least one small conduit 26.
  • several parallel conduits 26, small section are practiced in part 20 of the housing.
  • a central duct 27 is arranged axially in the housing 18. It communicates with the outside of the housing but, in the occurrence, when the insert is fixed to the wall 12a of the packaging, this conduit 27 opens out inside said package.
  • a valve 29 movable relative to a seat 30 arranged around the orifice adjacent to said duct 27.
  • a closable channel 32 is arranged between said chamber 22 and a clearance space 34 of said valve. This channel closable is likely to be blocked by displacement of the hot-melt material 24 contained in the chamber when it is melted and then cooled.
  • the chamber 22, said channel 32, said seat 30 and said conduit 27 are arranged coaxially around each other. More specifically, we successively finds the chamber radially from the outside towards the inside, the closable channel and drives it.
  • the chamber 22 and the closable channel 32 communicate by an annular passage 36.
  • the internal orifice of each small duct 26 which opens out in chamber 22 and the annular passage 36 for communication between this chamber and the closable channel are located at two opposite ends of said chamber.
  • the valve 29 is constituted by a washer of elastomeric material confined in said clearance 34 opposite said seat 30. The latter is hollowed out in a stepped bowl.
  • the internal orifice of the conduit 27 opens out in the center of this bowl.
  • the housing 18 consists of only two parts 19, 20.
  • a first part 19 in the form of a cup with circular outline provided with a hollow shoulder along its opening.
  • the second part 20 has the shape of a cover closing said cup in fitting onto the shoulder thereof.
  • Said second part comprises a part in the form of disc extended by a coaxial tubular partition 38, integral. Small conduits 26 of small section are formed through the disc-shaped part.
  • said first part 19 has a central chimney 40, integral, extending over the most much of the height of the cup.
  • the duct 27 and the seat 30 are defined in this central fireplace.
  • the closable channel 32 is defined between the inner wall of said tubular partition 38 and the outer wall of said chimney central 40 when the two parts are assembled.
  • the annular passage 36 between the chamber and the closable channel is defined between the bottom of the cup and the end of the partition tubular 38.
  • the cup comprises a base 44 made up externally of radial fins 45 which converge towards the external orifice of the duct 27. The presence of these fins allows avoid the duct being blocked by food products or the wall of the packaging when a vacuum is created in it.
  • the central chimney 40 is provided with ribs longitudinal 46, on the outside, which come to bear against the inner wall of the tubular partition.
  • This valve is particularly remarkable in that it comprises a frustoconical portion 50 Cooperating with the seat 30.
  • the frustoconical portion 50 is extended by a boss 52, central, substantially cylindrical, the diameter of which corresponds to that of the duct 27.
  • the boss is capable of engaging in the end part of the conduit 27.
  • the wall of the frustoconical portion is of substantially constant thickness so that the frustoconical portion 50 has a recess 54, for example conical.
  • the valve is also provided with a softening groove 56, circular, extending in this recess.
  • he also includes a substantially annular coping 58 extending externally the portion truncated. This coping may include notches 59 regularly spaced circumferentially, for example four, as shown.
  • the automatic closing device is shown before use, it is say that the block of hot-melt material 24 is entirely contained in the chamber 22.
  • this block of hot-melt material has lost its original shape and said material is engaged in said closable duct 32 under the effect of the condensation of vapor in the packaging, at the cooling.
  • Food preparations packaged as shown in Figure 1 are subject to a cooking operation.
  • the packaging has been filled atmospheric pressure and are introduced into a steam cooker operating in depression. From the start of cooking, communication is possible between the interior of the packaging and the outside of it so that gases escape by pushing the valve 29 and preventing it from coming to apply on the seat. We thus naturally obtain a pasteurization of cooked food products in the packaging itself. Meanwhile the block of hot melt material softens but stays inside the chamber. At the time of cooling, the vapor remaining in the package begins to condense. This condensation has the effect of attracting the valve 29 towards the seat but this displacement of the valve made with a low delay which allows the hot melt material to be drawn into said channel lockable 32.
  • the stepped seat 30 makes it possible to guarantee this delay in closing the valve which guarantees displacement and aspiration of the hot-melt material. Indeed, the stepped seat allows a adaptation of the valve sealing surface to the value of the vacuum. If material hot melt reaches the clearance space of the valve, it confirms closing definitive of it. After cooling, the packaging is definitively and hermetically closed and contains a perfectly pasteurized food preparation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (19)

  1. Automatische Verschlussvorrichtung, die dazu vorgesehen ist, auf dichte Art durch eine Wand von einer Verpackung für zumindest zum Teil In-situ zu kochende Nahrungsmittelprodukte befestigt zu werden, wobei ebendiese Vorrichtung ein Gehäuse (18) aufweist, das eine Kammer (22) umfasst, das einen Block aus Heizschmelzmaterial (24) aufweist, sowie eine Klappe(29), die im Verhältnis zu einem Sitz mobil ist, der um die Öffnung einer Leitung (27) angeordnet ist, und einen verschließbaren Kanal (32), der fähig ist durch ein Verschieben von ebendiesem geschmolzenen und anschließend abgekühlten Heizschmelzmaterial verschlossen zu werden, dadurch gekennzeichnet, dass die besagte Kammer (22) und die besagte Leitung (27) mit dem Äußeren von dem besagten Gehäuse verbunden sind und dass der besagte verschließbare Kanal (32) zwischen der besagten Kammer und einer Ausschlagzone (34) von besagter Klappe angeordnet ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die besagte Kammer, der besagte Kanal, der besagte Sitz und die besagte Leitung koaxial umeinander angeordnet sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die besagte Kammer (22) durch mindestens eine kleine Leitung (26) mit dem Äußeren vom besagten Gehäuse verbunden ist.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass sich die Öffnung von der besagten kleinen Leitung, die in die besagte Kammer mündet und eine Verbindungspassage (36) zwischen der besagten Kammer (22) und dem besagten verschließbaren Kanal (32) an den beiden gegenüberliegenden Enden von der besagten Kammer befinden.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der besagte Sitz (30) als eine stufenförmige Mulde ausgehöhlt ist, wobei eine Öffnung von der besagten Leitung (27) in die Mitte von ebendieser Mulde mündet.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die besagte Klappe (29A) aus einem Teil aus Elastomermaterial gebildet wird, das einen kugelstumpfförmigen Abschnitt (50) aufweist, der mit dem besagten Sitz (30) zusammenwirkt.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der besagte kegelstumpfförmige Abschnitt (50) durch eine leicht zylindrische Erhöhung (52) verlängert wird, von der der Durchmesser dem Durchmesser von der besagten Leitung (27) entspricht, wobei die besagte Erhöhung fähig ist, sich in die besagte Leitung einzufügen.
  8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Seite von der besagten Klappe, die der Seite mit dem kegelstumpfförmigen Abschnitt gegenüberliegt, eine Aushöhlung (54), zum Beispiel in konischer Form, aufweist.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die besagte Klappe mit einer kreisförmigen Assouplierrille (56) versehen ist, wobei sich diese in der besagten Aushöhlung erstreckt.
  10. Vorrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass die besagte Klappe einen Rand (58) aufweist, der leicht ringförmig ist und äußerlich den besagten kegelstumpfförmigen Abschnitt verlängert.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der besagte Rand (58) Ausschnitte (59) aufweist, die regelmäßig über den Umfang auseinander liegen.
  12. Vorrichtung nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, dass die besagte Klappe ein per Spritzgussverfahren hergestelltes Teil ist.
  13. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die besagte Klappe (29) aus einer Scheibe aus Elastomermaterial gebildet wird, die in der besagten Ausschlagzone gegenüber dem besagten Sitz eingegrenzt ist
  14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das besagte Gehäuse aus der Verbindung von zwei Teilen (19, 20) besteht, die sich koaxial aneinander fügen.
  15. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass ein erstes Teil (19) über die Form einer Schale mit kreisförmiger Kontur verfügt, wobei diese einen Zentralschacht (40) aufweist, der aus dem Material gebildet ist, in dem die besagte Leitung und der besagte Sitz definiert sind, dass ein zweites Teil (20) über die Form eines Deckels verfügt, der die besagte Schale verschließt, dass dieser Deckel durch eine rohrförmige Wand (38), die aus dem Material gebildet ist, verlängert wird, wobei der verschließbare Kanal (32) zwischen der Innenwand von der besagten rohrförmigen Wand und der Außenwand vom besagten Zentralschacht definiert ist, wenn die beiden Teile verbunden sind.
  16. Vorrichtung nach einem der Ansprüche 3 bis 15, dadurch gekennzeichnet, dass sie mehrere kleine vorgenannte Leitungen (26) aufweist, die in dem besagten zweiten Teil definiert sind.
  17. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, dass die besagte Schale außen radiale Flügel (45) aufweist, die zur Öffnung der besagten Leitung konvergieren.
  18. Verpackung für Nahrungsmittelprodukte, die imstande ist, Produkte zu aufzunehmen, die zumindest zum Teil In-situ zu kochen sind, dadurch gekennzeichnet, dass sie einen Behälter und eine automatische Verschlussvorrichtung (15) nach einem der vorhergehenden Ansprüche aufweist, die auf dichte Art durch eine Wand vom besagten Behälter befestigt ist, wobei die vorgenannte Leitung in das Innere von dem besagten Behälter mündet.
  19. Verpackte Nahrungsmittelzubereitung, die in einer Verpackung vorgekocht ist, wobei ebendiese Verpackung nach dem Kochen hermetisch verschlossen wird, die eine automatische Verschlussvorrichtung (15) nach einem der Ansprüche 1 bis 17 aufweist, die auf dichte Art durch eine Wand (12a) von besagter Verpackung befestigt ist, wovon der vorgenannte verschließbare Kanal (32) von im soliden Zustand heizschmelzbarem Material verschlossen wird.
EP01110740A 2001-05-03 2001-05-03 Automatische Verschlussanordnung mit Heissschmeltzmaterial Expired - Lifetime EP1254850B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60107537T DE60107537T2 (de) 2001-05-03 2001-05-03 Automatische Verschlußanordnung mit Heißschmelzmaterial
EP01110740A EP1254850B1 (de) 2001-05-03 2001-05-03 Automatische Verschlussanordnung mit Heissschmeltzmaterial
AT01110740T ATE283806T1 (de) 2001-05-03 2001-05-03 Automatische verschlussanordnung mit heissschmeltzmaterial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01110740A EP1254850B1 (de) 2001-05-03 2001-05-03 Automatische Verschlussanordnung mit Heissschmeltzmaterial

Publications (2)

Publication Number Publication Date
EP1254850A1 EP1254850A1 (de) 2002-11-06
EP1254850B1 true EP1254850B1 (de) 2004-12-01

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EP01110740A Expired - Lifetime EP1254850B1 (de) 2001-05-03 2001-05-03 Automatische Verschlussanordnung mit Heissschmeltzmaterial

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EP (1) EP1254850B1 (de)
AT (1) ATE283806T1 (de)
DE (1) DE60107537T2 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997397A (en) * 1958-04-12 1961-08-22 Doulgheridis Alcibiade Michael Method of and means for sterilizing and preserving foods and other materials in containers
FR2629060A1 (fr) 1988-03-28 1989-09-29 Cook In Pack Sa Dispositif d'obturation automatique par effet thermique de conditionnement pour preparations alimentaires a consommations differees
FR2674116B1 (fr) 1991-03-22 1993-07-09 Gether Sa Installation de cuisson d'aliments a la vapeur.
FR2719028B1 (fr) 1994-04-20 1996-07-26 Gether Sa Emballage pour produits alimentaires et préparation alimentaire conditionnée, utilisant un tel emballage.
JPH11171257A (ja) * 1997-12-15 1999-06-29 Shimomura Kogyo Kk 減圧容器
FR2805250B1 (fr) * 2000-02-17 2002-05-10 Ile Bk Soc Civ Dispositif de fermeture automatique pour emballage de produits alimentaires, emballage et preparation alimentaire conditionnee correspondants

Also Published As

Publication number Publication date
DE60107537D1 (de) 2005-01-05
EP1254850A1 (de) 2002-11-06
DE60107537T2 (de) 2005-12-15
ATE283806T1 (de) 2004-12-15

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