# US 2014/0197162 A1 · Food package > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197162 A1 - Document ID: US20140197162A1 - Status: Published application - Kind: A1 - Application number: 14/128,039 - Filed: 2012-06-28 - Published: 2014-07-17 - Earliest claimed: 2011-07-06 - Assignees: Micvac AB - Inventors: Joel Haamer; Martin Gustavsson - Web page: https://patentgrep.com/patent/US20140197162A1 ## CPC - H05B 6/6408: {Supports or covers specially adapted for use in microwave heating apparatus} - B65D 77/225: {Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element} - B65D 81/3453: {Rigid containers, e.g. trays, bottles, boxes, cups} - B65D 2205/00: Venting means - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 ## Abstract The present invention relates to a food package for cooking, storing and heating of ready-to-eat food. The food package comprises a food container (65), a plastic film (26) for sealing the food package from ambient air and being provided with an opening (16), said food package further comprising an openable and resealable valve membrane (52, 62) of a thermoelastic material covering said opening, wherein an adhesion between the valve membrane (52, 62) and the surface it is applied on is lower in a first area (160) than in a second area, wherein said first area (160) extends in a direction at least between said opening (16) of said plastic film and an edge of said valve membrane (52, 62), such that a canal (60) may be created between said opening (16) and a valve membrane periphery during cooking and/or heating of said ready-to-eat food, wherein the valve membrane has a production machine direction (8) of the thermoelastic material which has a relationship to said direction of said first area such that an angle therebetween is within an interval of 60° to 90°. ## Claims ### Claim 1 A food package for cooking, storing and heating of ready-to-eat food, the food package comprising a food container, a plastic film for sealing the food package from ambient air and being provided with an opening, said food package further comprising an openable and resealable valve membrane of a thermoelastic material covering said opening, wherein an adhesion between the valve membrane and the surface it is applied on is lower in a first area than in a second area, wherein said first area extends in a direction at least between said opening of said plastic film and an edge of said valve membrane, such that a canal may be created between said opening and a valve membrane periphery during cooking and/or heating of said ready-to-eat food, wherein the valve membrane has a production machine direction of the thermoelastic material which has a relationship to said direction of said first area such that an angle therebetween is within an interval of 60° to 90°. ### Claim 2 (depends on 1) A food package according to claim 1, in which said interval is 75° to 90°. ### Claim 3 (depends on 1) A food package according to claim 1, wherein said adhesion is provided by an adhesive. ### Claim 4 (depends on 1) A food package according to claim 1, wherein said lower adhesion is provided by a release coating. ### Claim 5 (depends on 4) A food package according to claim 4, wherein said release coating is printed on said adhesive. ### Claim 6 (depends on 4) A food package according to claim 4, wherein said release coating is printed on the surface on which said valve membrane is applied. ### Claim 7 (depends on 4) A food package according to claim 4, wherein said release coating is a silicone based substance. ### Claim 8 (depends on 1) A food package according to claim 1, wherein said thermoelastic material is in an elastic state at temperatures exceeding 30° C. ### Claim 9 (depends on 1) A food package according to claim 1, wherein said valve membrane is applied directly on said plastic film. ### Claim 10 (depends on 1) A food package according to claim 1, wherein said plastic film is provided with a valve seat, wherein said valve seat is provided by a first layer being applied to said plastic film and having an opening in register with said opening of the plastic film, and wherein said valve membrane is applied on said valve seat. ### Claim 11 (depends on 10) A food package according to claim 10, wherein said first layer is provided with adhesive on its surface being directed towards said plastic film. ### Claim 12 A valve membrane of a thermoelastic material for use in a food package for cooking, storing and heating of ready-to-eat food, said valve membrane being provided with an adhesive such that the adhesive properties in a first area is lower than the adhesive properties in a second area, wherein said first area extends in a direction from an edge of said valve membrane and to a position on the surface of said valve membrane spaced from the periphery of said valve membrane, wherein in use of the valve membrane a canal may be created along said first area, wherein the valve membrane has a production machine direction of the thermoelastic material which has a relationship to said direction of said first area such that an angle therebetween is within an interval of 60° to 90°. ### Claim 13 A method of producing a valve membrane for use in a food package for cooking, storing and heating of ready-to-eat food, the method comprising providing a valve membrane of thermoelastic material with an adhesive on one side thereof; apply release coating on a first area of said valve membrane, such that said first area extends in a direction from an edge of said valve membrane to a position on the surface of said valve membrane being spaced from the periphery of said valve membrane, wherein the direction of said first area has a relationship to the production machine direction of said valve membrane so that an angle therebetween is within an interval of 60° to 90°. ### Claim 14 (depends on 13) A method of producing a valve membrane according to claim 13, wherein said release coating is a silicone based substance.