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EP0699157B1 - Emballage permettant une augmentation de la duree de conservation des denrees alimentaires - Google Patents

Emballage permettant une augmentation de la duree de conservation des denrees alimentaires Download PDF

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Publication number
EP0699157B1
EP0699157B1 EP94918018A EP94918018A EP0699157B1 EP 0699157 B1 EP0699157 B1 EP 0699157B1 EP 94918018 A EP94918018 A EP 94918018A EP 94918018 A EP94918018 A EP 94918018A EP 0699157 B1 EP0699157 B1 EP 0699157B1
Authority
EP
European Patent Office
Prior art keywords
package
flanges
package portion
packaging
gas
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
EP94918018A
Other languages
German (de)
English (en)
Other versions
EP0699157A1 (fr
Inventor
Michael P. Gorlich
Robert F. Mcpherson
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.)
World Class Packaging Systems Inc
Original Assignee
World Class Packaging Systems Inc
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
Priority claimed from US08/064,700 external-priority patent/US5348752A/en
Priority claimed from US08/098,530 external-priority patent/US5419096A/en
Priority claimed from US08/154,756 external-priority patent/US5419097A/en
Priority claimed from US08/221,194 external-priority patent/US5439132A/en
Application filed by World Class Packaging Systems Inc filed Critical World Class Packaging Systems Inc
Priority to EP99109931A priority Critical patent/EP0949147A1/fr
Priority to EP98122058A priority patent/EP0899209B1/fr
Publication of EP0699157A1 publication Critical patent/EP0699157A1/fr
Application granted granted Critical
Publication of EP0699157B1 publication Critical patent/EP0699157B1/fr
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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/245—Internal membrane, floating cover or the like isolating the contents from the ambient atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/065—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat
    • B65B25/067—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat combined with its conservation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
    • B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/168—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying and securing double closures
    • 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
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/185—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures the outer closure being a foil membrane
    • 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
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • 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
    • B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2069—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere
    • B65D81/2076—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas in a special atmosphere in an at least partially rigid container
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0031—Membrane
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/388—Materials used for their gas-permeability

Definitions

  • THIS INVENTION relates to a package, and more specifically to a package for food products.
  • the invention relates to a package for food products which is such that the food product packaged within the package may be maintained in one condition under certain circumstances and then converted to another condition.
  • the food package might maintain an inert gaseous atmosphere and then, when the package reaches a supermarket or other retail outlet, the food package will permit exposure of the food product to the ambient atmosphere.
  • it is particularly advantageous in connection with the packaging of meat in a modified atmosphere package such that the meat may be transported in a relatively inert atmosphere and then caused to bloom when it reaches a retail outlet by exposure to oxygen.
  • the upper cover is gas impermeable and may be removed to expose a lower cover that is air permeable.
  • the package may be shipped with the upper cover intact so that an inert gaseous atmosphere may be maintained within the package during shipping. Then the upper cover may be removed at the supermarket leaving the lower cover. Since the lower cover is oxygen permeable, it allows the meat to bloom in the presence of oxygen.
  • an open top of a package is provided with two support surfaces spaced apart, each being provided for the connection of a plastic sheet.
  • Domed meat packages have been used in the past to contain large cuts of meats such as chickens or roasts. However, these packages have suffered from a number of drawbacks.
  • the shelf life of the food product can be extended from a few days to as long as two weeks or more perhaps.
  • the customer In order to make the customer feel comfortable with the food packaging, the customer should be able to view a substantial portion of the food product. In order to maintain a desired atmosphere around the package, a package which is somewhat larger than the food product is required. However, with a large, relatively heavy meat product it is difficult to allow for spacing around the food product and yet maintain the product in an attractive fashion within the container.
  • the spacing becomes visible to the consumer. The consumer may believe that the package is too large and wasteful. Moreover, if the product is substantially larger than the food product, the food product may move around during transportation and handling, and the package itself may be indented or otherwise damaged.
  • deep draw packages may have been used for this type of packaging.
  • deep draw packages become difficult to form at large sizes and may experience significant deformation of the packaging material.
  • These packages are particularly susceptible to the formation of thin spots and to the indenting and collapsing of the corner regions.
  • WO91/03407 discloses a packaging for perishable goods which comprises a clear plastics material domed lid over a base, with the lid sealing the packaging, within which an inert gaseous atmosphere is maintained.
  • a package for facilitating gas exchange comprising: an upper substantially rigid domed package portion, said domed package portion including an upper flange extending away from the remainder of said domed package portion; a lower substantially rigid, dished package portion which may have a lower flange extending outwardly from the remainder of said dished package portion; wherein each of said portions include sealing regions for sealing connection to the other package portion; and one or more apertures are provided in one of said package portions for permitting selective gas escape from said package, the or each aperture being covered by a gas permeable plastic sheet secured to said package at a first location, said gas permeable plastic sheet being further covered by a removable gas impermeable plastic sheet.
  • said sheets are unconnected to one another except by way of one of said package portions.
  • said upper and lower flanges are aligned and overlap along their outermost extensions.
  • said upper flanges substantially overlap said lower flanges only to either side of their outermost extensions.
  • said upper flanges overlap less than all of said lower flanges, each overlapping region of each upper flange being protected from accidental engagement.
  • said upper and lower flanges are substantially aligned at their points of outermost extension, said upper flanges overlapping said lower flanges to either side of the points of outermost extension of said upper flanges.
  • the present applicant has appreciated that it would be desirable to form a domed package rather than to use the deep draw plastic forming technique.
  • the product may protrude above the sealing flanges that connect the upper and lower package portions.
  • the package portions may be formed from different materials adapted to particular packaging needs. For example, it may be desirable to form the bottom portion out of foam material and the top out of transparent plastic.
  • a packaging process for packaging a large meat product "A” is shown in Figure 1 and includes the steps a, b and c.
  • step a the food product "A” is shown contained within a dish-shaped plastic package portion 310 which is supported by a peripheral flange 312 on a member 314.
  • the package portion 310 may be formed of a variety of conventional materials including any known plastic packaging material. In many instances, it may be desirable to form the lower package portion 310 of molded foamed plastic so that the package portion will be relatively rigid.
  • step b an upper package portion 318 is shown in spaced relation to the lower package portion 310 over the food product "A".
  • the package portion 318 is domed and includes a peripheral flange 320.
  • the upper package portion 318 may be formed of a variety of conventional plastic materials. However, in many instances, it may be desirable to form the upper package portion 318 out of relatively rigid, molded transparent plastic material. This allows the food product "A" to be viewed within the food package.
  • both the portions 310 and 318 are preformed of relatively rigid, molded plastic material.
  • step c the upper and lower package portions 318 and 310 may be joined along their peripheral flanges 320 and 312 by an apparatus 322 which presses the peripheral flange 320 of the upper package portion 318 downwardly onto the peripheral flange 312 of the package portion 310.
  • the apparatus 322 may be a heat seal machine which causes heat sealing of the juxtaposed flange portions thereby connecting the materials.
  • the advantage of holding the upper domed package portions 318 in spaced juxtaposition with the lower package portion 310 is that the gaseous environment within the package may be transformed prior to the sealing step c shown in Figure 1.
  • the air inside the package may be exhausted, and a desired gas may be supplied in its place.
  • the desired gas may be one which is relatively low in oxygen content so that the shelf life of the food product may be extended.
  • the gas may be relatively higher in either carbon dioxide and/or nitrogen than normal atmospheric air in order to prevent or diminish the oxidation processes that shorten the life of the meat product "A".
  • the lower package portion 310 may be maintained in a desired arrangement by a set of two pairs of opposed guides 324.
  • Each of the guides 324 is arranged in a substantially tangential arrangement to the curved sides of the lower package portion 310 so as to abut with a sealing region 326.
  • the sealing region 326 provides the point of attachment to the upper package portion 318.
  • the lower package portion 310 may include an outwardly extending flange 328 on either of two opposed ends of the package portion 310. These flanges are herein termed lower flanges. While the package 310 portion shown in Figure 2 has an oval configuration, the cross-sectional configuration of the package may assume one of a variety of different shapes.
  • Figure 3 shows the positioning of the upper package portion 318 over the lower package portion 310.
  • the upper package portion 318 includes a pair of opposed bluntly pointed end flanges 334, herein termed upper flanges, which interact with and are constrained between each set of guides 324.
  • the outwardly extending upper flanges 334 extend over two vertically mounted filling tubes 330 such that the tubes 330 do not generally guide the positioning of the upper package portion 318 in the horizontal plane. This is accomplished substantially by the guides 324.
  • the upper flanges 334 and the lower flanges 328 are aligned and overlap along their outermost edges or extensions 332. In the regions 336, located on either side of their outermost edges 332, the upper flanges 334 extend past the outermost edges 332 of the lower flanges 328 so that there is a region of overhang of each upper flange 334 over the lower package portion 310.
  • a gas exchange portion 358 is provided on the upper package portion 318.
  • the portion gas exchange 358 includes one or more apertures 360 formed in the package portion 318. These apertures are covered by a first sheet in the form of a circular plastic film layer 362 which may be permeable to atmospheric air.
  • the first sheet 362 is sealed to the package portion 318 at 364.
  • Attached over the first sheet 362 is an upper sheet in the form of a fluid impermeable plastic film 366 which is sealed at 368 to the upper package portion 318.
  • the first sheet 362 and the upper sheet 366 are unconnected to one another except by way of the package portion 318. When desired, the upper sheet 366 may be peeled away to allow gas exchange through the first sheet 362 via the apertures 360.
  • Figure 4 shows a packaging machine for achieving the package operation shown in Figure 1.
  • the package 338 shown in Figure 4 is of a slightly different shape than the package shown in Figure 1.
  • the lower package portion 310 is deeper than the package portion 310 shown in Figure 1, and the abruptness of both the lower and the upper package portions 318 and 310 is greater in the embodiment shown in Figure 4.
  • the lower package portion 310 rests in a conforming tray 340 which conforms to its outside configuration and supports the peripheral flange 312.
  • the upper package portion 318 has the flange region 336 resting atop the filling tube 330.
  • the filling tube 330 is reciprocal up and down within a slot 342. However, the extent of its upward extension is controlled by the overhanging edge 344 of the adjacent guide 324.
  • Each tube 330 includes an outer cylinder 330a and an inner cylinder 330b.
  • the outer cylinder 330a includes a set of "O" rings 346 which prevent leakage around the tube 330.
  • a pin 348 is provided to control the extent of downward movement of the tube 330 and to prevent its rotation about its lengthwise axis.
  • Within the center of the tube 330 is a bore 350 which is capable of conveying gas to or from the interior of the package to or from the passageway 352. Thus, gas may pass via the passageway 352 to or from the interior of the package shown in the configuration of Figure 4.
  • a pressurized gas supply passageway 372 is connected to a source (not shown) of pressurized gas.
  • pressurized gas may be communicated via the passageway 372 to act on the lower end of the outer cylinder 330a. This causes the tube 330 to move to its upper position shown in Figure 4.
  • the sealing bar 356 may be a conventional heat sealing bar which heat seals the flanges of the upper package portion 318 to those of the lower package portion 310.
  • the vacuum chamber cover 390 seals to the lower chamber 392 though inner and outer peripheral seals 394 and 396 and the abutment of gasket 398 on the lower chamber 392.
  • a valved passage 400 is provided for pulling a vacuum inside the chamber defined by the cover 390.
  • the method and apparatus of the present invention may be implemented in the following fashion.
  • the lower package portion 310, loaded into the conforming tray 340, is supported by its peripheral flanges 312.
  • a meat product "A" if not already loaded, may be loaded inside the package portion 310.
  • the relatively rigid top or upper portion 318 is aligned over the lower package portion 310 but resting on the top of the filling tubes 330 as shown in Figure 4.
  • This gaseous environment may be one which is relatively poor in its concentration of oxygen and relatively higher (with respect to normal ambient atmosphere) with respect to its carbon dioxide and/or nitrogen content.
  • This result of such an environment is to extend the shelf life of a meat product. This is because the presence of oxygen causes the meat product to age and discolor.
  • the gas filling tubes 330 are pushed downwardly by the pusher bar 354 into their passageways 342 until the pins 348 engage the top of the slots 380.
  • the upper package portion 318 is in abutment with the lower package portion 310.
  • the sealing regions 326 are likewise in abutment.
  • the package is thereafter sealed along the regions 326 of the upper and lower package portions 310 and 318 to provide an air tight seal between the two package portions.
  • the sealing bar 356 reciprocates with the pusher bar 354. However, the pusher bar 354 pushes the tubes 330 below the flanges to ensure that, regardless of the package thickness, the tubes 330 do not interfere with the sealing process.
  • the completed package 338 may be removed by raising the cover 390 with the sealing bar 356 and pusher bar 354.
  • the package 338 may be removed from the conforming carrier 340. This may be accomplished in batch or continuous fashion as desired.
  • the cycle may be repeated after the gas tubes 330 are reciprocated to their upper position. This is achieved by supplying air pressure to the upper cylinders 330a. The air pressure is released through a relief valve (not shown) when the tubes 330 are pushed downwardly by the pusher bar 354.
  • the positioning of the upper and lower packaging portions 310 and 318 with respect to one another is assured by the provision of the guides 324 and the filling tubes 330 which interact with the special package shape to ensure exact juxtaposed position of the parts relative to one another. Moreover, the flange regions 336 of the upper package portion 318 maintain the separation of the package when they abut with the filling tubes 330.
  • the lower package portion 310 is inserted into the conforming carrier 340, guides by tubes 330 and guides 324. Then, the upper package portion 318 is located on the tubes 330, positioned by the guides 324. Thereafter, the cover 390 is closed and the process may be repeated.
  • the package with its low oxygen environment will cause the meat to have a purplish color.
  • the upper sheet 366 of fluid impermeable film may be peeled back. This allows ambient atmosphere to enter the package so that the meat will take on a reddish color.
  • the provision of the flange overhang 336 of the upper package portion 318 over the lower package portion 310 facilitates the removal of the domed upper package portion 318 in use. Moreover, the concealed location of the overhang 336 diminishes the possibility of accidental opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Packaging Frangible Articles (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Claims (5)

  1. Un emballage servant à faciliter l'échange gazeux, comprenant :
    une partie d'emballage (318) supérieure bombée sensiblement rigide, ladite partie d'emballage bombée comprenant une bride supérieure (334) s'étendant depuis le restant de ladite partie d'emballage bombée;
    une partie d'emballage (310) inférieure en cuvette sensiblement rigide, qui peut présenter une bride inférieure (328) s'étendant vers l'extérieur du restant de ladite partie d'emballage en cuvette;
    dans lequel
    chacune desdites parties d'emballage (318, 310) comprend des zones de scellage (312, 320) pour assurer une liaison de scellage à l'autre partie d'emballage; et
    une ou plusieurs ouvertures (360) sont prévues dans l'une desdites parties d'emballage pour permettre une fuite de gaz sélective depuis ledit emballage, la ou chaque ouverture étant recouverte d'une feuille de matière plastique (362) perméable aux gaz, fixée audit emballage en un premier emplacement (364), ladite feuille de matière plastique perméable aux gaz étant en outre recouverte par une feuille de matière plastique (366) amovible imperméable aux gaz.
  2. L'emballage selon la revendication 1, dans lequel lesdites feuilles (362, 366) ne sont pas reliées entre elles sauf au moyen de l'une desdites parties d'emballage (318).
  3. L'emballage selon la revendication 1 ou la revendication 2, dans lequel lesdites brides supérieure et inférieure (334, 328) sont alignées et se chevauchent le long de leurs extensions (332) les plus extérieures.
  4. L'emballage selon la revendication 3, dans lequel lesdites brides supérieures (334) font sensiblement saillie desdites brides inférieures (328) seulement de chaque côté (336) de leurs extensions (332) les plus extérieures.
  5. L'emballage selon la revendication 2, dans lequel lesdites brides supérieure (334) et inférieure (328) sont sensiblement alignées à leurs points d'extension (332) la plus extérieure, lesdites brides supérieures (334) chevauchant lesdites brides inférieures (328) de chaque côté (336) des points d'extension (332) la plus extérieure desdites brides supérieures (334).
EP94918018A 1993-05-20 1994-05-16 Emballage permettant une augmentation de la duree de conservation des denrees alimentaires Expired - Lifetime EP0699157B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99109931A EP0949147A1 (fr) 1993-05-20 1994-05-16 Systèmes d'emballages pour prolonger la conservation de produits alimentaires
EP98122058A EP0899209B1 (fr) 1993-05-20 1994-05-16 Emballage pour produit alimentaire et méthode pour l'emballer

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US08/064,700 US5348752A (en) 1993-05-20 1993-05-20 Dual state food packaging
US64700 1993-05-20
US98530 1993-07-08
US08/098,530 US5419096A (en) 1993-07-28 1993-07-28 Packaging method and apparatus for packaging large meat products in a desired gaseous atmosphere
US154756 1993-11-18
US08/154,756 US5419097A (en) 1993-11-18 1993-11-18 Method and apparatus for packaging food
US08/221,194 US5439132A (en) 1993-05-20 1994-03-31 Dual cover package
US221194 1994-03-31
PCT/US1994/005525 WO1994027868A2 (fr) 1993-05-20 1994-05-16 Systemes d'emballage permettant une augmentation de la duree de conservation des denrees alimentaires

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP98122058A Division EP0899209B1 (fr) 1993-05-20 1994-05-16 Emballage pour produit alimentaire et méthode pour l'emballer
EP99109931A Division EP0949147A1 (fr) 1993-05-20 1994-05-16 Systèmes d'emballages pour prolonger la conservation de produits alimentaires

Publications (2)

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EP0699157A1 EP0699157A1 (fr) 1996-03-06
EP0699157B1 true EP0699157B1 (fr) 2000-01-12

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP98122058A Expired - Lifetime EP0899209B1 (fr) 1993-05-20 1994-05-16 Emballage pour produit alimentaire et méthode pour l'emballer
EP99109931A Withdrawn EP0949147A1 (fr) 1993-05-20 1994-05-16 Systèmes d'emballages pour prolonger la conservation de produits alimentaires
EP94918018A Expired - Lifetime EP0699157B1 (fr) 1993-05-20 1994-05-16 Emballage permettant une augmentation de la duree de conservation des denrees alimentaires

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP98122058A Expired - Lifetime EP0899209B1 (fr) 1993-05-20 1994-05-16 Emballage pour produit alimentaire et méthode pour l'emballer
EP99109931A Withdrawn EP0949147A1 (fr) 1993-05-20 1994-05-16 Systèmes d'emballages pour prolonger la conservation de produits alimentaires

Country Status (9)

Country Link
EP (3) EP0899209B1 (fr)
JP (2) JPH08510708A (fr)
KR (1) KR100320356B1 (fr)
AT (2) ATE247028T1 (fr)
AU (1) AU688329B2 (fr)
CA (1) CA2163230C (fr)
DE (2) DE69422620T2 (fr)
NZ (1) NZ267278A (fr)
WO (1) WO1994027868A2 (fr)

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Also Published As

Publication number Publication date
DE69422620T2 (de) 2000-05-31
EP0899209A3 (fr) 1999-04-14
AU6952094A (en) 1994-12-20
EP0899209B1 (fr) 2003-08-13
DE69433041T2 (de) 2004-05-27
CA2163230C (fr) 1999-11-02
EP0899209A2 (fr) 1999-03-03
KR100320356B1 (ko) 2002-01-15
WO1994027868A2 (fr) 1994-12-08
NZ267278A (en) 1997-11-24
ATE188660T1 (de) 2000-01-15
AU688329B2 (en) 1998-03-12
EP0949147A1 (fr) 1999-10-13
DE69433041D1 (de) 2003-09-18
JPH08510708A (ja) 1996-11-12
DE69422620D1 (de) 2000-02-17
JP2001294278A (ja) 2001-10-23
EP0699157A1 (fr) 1996-03-06
CA2163230A1 (fr) 1994-12-08
WO1994027868A3 (fr) 1995-02-09
ATE247028T1 (de) 2003-08-15

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