[특허]Double seal self-venting container

Tang,Donald C. L.

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특허 상세정보

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Double seal self-venting container

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-006/28 B65D-006/00 B65D-008/18 B65D-008/04
미국특허분류(USC)	220/004.21; 220/366.1; 220/792
출원번호	US-0859072 (2004-06-03)
발명자 / 주소	Tang,Donald C. L.
출원인 / 주소	Tang,Donald C. L.
대리인 / 주소	Diller, Ramik &
인용정보	피인용 횟수 : 11 인용 특허 : 12

초록
▼

A container for hot carry-out food includes a container body and a cover, each having flanges and the flanges defining a pair of seals between which is a condensation collecting chamber and radially outboard of an outermost seal is a second condensation collecting chamber which is continuously vented to atmosphere through radial venting passages or channels. Under elevated pressures, as might occur when hot food is packages in the container, the innermost seal opens permitting steam/gasses to vent into the innermost condensation collection chamber in which the steam might condense as condensate. Under higher internal container pressures, the outboardmost seal may also open and vent gasses from the innermost condensation chamber through/into the outermost condensation collection chamber and continuously from the latter to atmosphere through a plurality of continuously open circumferential spaced radial venting passages or channels.

대표
청구항
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What is claimed is: 1. A container comprising a container body and a cover body; each of said container body and cover body including a central wall portion, a peripheral wall portion, a flange wall portion and a terminal edge, means for defining an upwardly opening condensation collection channel of said container body flange wall portion radially outboard of said container body peripheral wall portion, first and second sealing means located on opposite sides of said condensation collection channel for defining first and second substantially continuous peripheral seals between said container body and cover body when the latter are in closed relationship to each other, said first sealing means being radially inboard of said second sealing means, and means outboard of said second sealing means for venting an area outboard of said second sealing means to atmosphere whereby any fluid media passing radially beyond said second sealing means is vented to atmosphere. 2. The container as defined in claim 1 wherein said first and second sealing means are each defined by said container body. 3. The container as defined in claim 1 wherein said first and second sealing means are each defined by said cover body. 4. The container as defined in claim 1 wherein one of said first and second sealing means is defined by one of said container body and cover body, and another of said first and second sealing means is defined by another of said container body and cover body. 5. The container as defined in claim 1 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel. 6. The container as defined in claim 1 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel absent unsealing of said second sealing means. 7. The container as defined in claim 1 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel absent unsealing of said second sealing means, and said second sealing means is constructed and arranged to unseal at a pressure beyond said first-mentioned elevated pressure to thereby vent fluid to atmosphere through said venting means. 8. The container as defined in claim 1 including cooperative means of said cover body and container body for snap-securing the same to each other to thereby maintain said first and second sealing means in sealed relationship in the closed condition of said cover and container bodies. 9. The container as defined in claim 1 including cooperative means of said cover body and container body for snap-securing the same to each other to thereby maintain said first and second sealing means in sealed relationship in the closed condition of said cover and container bodies, and said cooperative snap-securing means is defined by a radially inwardly directed rib of said cover body flange in underlying engagement with said container body terminal edge. 10. The container as defined in claim 1 wherein said first and second substantially continuous seals and said condensation collection channel are in substantially concentric relationship to each other. 11. The container as defined in claim 1 including a first pair of radially spaced substantially concentric stacking walls of said cover body central wall portion and a first pair of radially spaced substantially concentric stacking walls of said container body central wall portion being in substantially coaxially aligned relationship with each other thereby achieving stacked relationship with substantially identically constructed containers. 12. The container as defined in claim 1 wherein said venting means includes at least one passage between said container body and cover body flange wall portions located radially outboard of said second sealing means. 13. The container as defined in claim 1 wherein said venting means includes a plurality of radially passages located in circumferentially spaced relationship between said container body and cover body flange wall portions located radially outboard of said second sealing means. 14. The container as defined in claim 1 wherein said venting means includes a plurality of radially passages located in circumferentially spaced relationship between said container body and cover body flange wall portions located radially outboard of said second sealing means, and each radial passage being defined between a pair of spaced ribs. 15. The container as defined in claim 1 wherein said venting means includes at least one passage between said container body and cover body flange wall portions located radially outboard of said second sealing means, and said at least one radial passage is formed in one of said flange wall portions. 16. The container as defined in claim 1 wherein each of said flange wall portions include a radially outermost substantially inverted U-shaped wall portion, said substantially inverted U-shaped wall portions are in nested relationship in the closed position of said cover and container bodies, and said venting means includes at least one passage between said substantially inverted U-shaped wall portions. 17. The container as defined in claim 1 wherein said first and second sealing means are each a substantially continuous upstanding respective first and second sealing bead of said cover body flange wall portion. 18. The container as defined in claim 1 wherein said first and second sealing means are each a substantially continuous upstanding respective first and second sealing bead of said cover body flange wall portion, and said first sealing bead defines said first peripheral seal by sealingly engaging against said cover body peripheral wall portion. 19. The container as defined in claim 1 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 20. The container as defined in claim 2 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 21. The container as defined in claim 3 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 22. The container as defined in claim 4 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 23. The container as defined in claim 5 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 24. The container as defined in claim 6 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 25. The container as defined in claim 7 including another condensation collection channel of said container body flange between said second sealing means and said venting means. 26. A container comprising a container body and a cover body; each of said container body and cover body including a central wall portion, a peripheral wall portion, a flange wall portion and a terminal edge; means for defining a first upwardly opening condensation collection channel of said container body flange wall portion radially outboard of said container body peripheral wall portion, first and second sealing means located on opposite sides of said first condensation collection channel for defining first and second substantially continuous peripheral seals between said container body and cover body when the latter are in closed relationship to each other, said first sealing means being radially inboard of said second sealing means, and means radially outboard of said second sealing means for defining a second upwardly opening condensation collection channel for collecting condensation beyond said second sealing means. 27. The container as defined in claim 26 wherein said first and second sealing means are each defined by said container body. 28. The container as defined in claim 26 wherein said first and second sealing means are each defined by said cover body. 29. The container as defined in claim 26 wherein one of said first and second sealing means is defined by one of said container body and cover body, and another of said first and second sealing means is defined by another of said container body and cover body. 30. The container as defined in claim 26 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel. 31. The container as defined in claim 26 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel absent unsealing of said second sealing means. 32. The container as defined in claim 26 wherein said first sealing means is constructed and arranged to unseal at closed container elevated pressure to thereby vent fluid to said condensation collection channel absent unsealing of said second sealing means, and said second sealing means is constructed and arranged to unseal at a pressure beyond said first-mentioned elevated pressure to thereby vent fluid to atmosphere through said venting means. 33. The container as defined in claim 26 including cooperative means of said cover body and container body for snap-securing the same to each other to thereby maintain said first and second sealing means in sealed relationship in the closed condition of said cover and container bodies. 34. The container as defined in claim 26 including cooperative means of said cover body and container body for snap-securing the same to each other to thereby maintain said first and second sealing means in sealed relationship in the closed condition of said cover and container bodies, and said cooperative snap-securing means is defined by a radially inwardly directed ribs of said cover body flange in underlying engagement with said container body terminal edge. 35. The container as defined in claim 26 wherein said first and second substantially continuous seals and at least one of said first and second condensation collection channels are in substantially concentric relationship to each other. 36. The container as defined in claim 26 including a first pair of radially spaced substantially concentric stacking walls of said cover body central wall portion and a first pair of radially spaced substantially concentric stacking walls of said container body central wall portion being in substantially coaxially aligned relationship with each other thereby achieving stacked relationship with substantially identically constructed containers. 37. The container as defined in claim 26 including venting means between said container body and cover body flange wall portions located radially outboard of said second sealing means for venting said first condensation collection channel. 38. The container as defined in claim 37 wherein said venting means includes a plurality of passages located in circumferentially spaced relationship between said container body and cover body flange wall. 39. The container as defined in claim 37 wherein said venting means includes a plurality of passages located in circumferentially spaced relationship between said container body and cover body flange wall portions, and each radial passage being defined between a pair of spaced ribs. 40. The container as defined in claim 37 wherein said venting means includes at least one passage between said container body and cover body flange wall portions, and said at least one radial passage is formed in one of said flange wall portions. 41. The container as defined in claim 37 wherein each of said flange wall portions include a radially outermost substantially inverted U-shaped wall portion, said substantially inverted U-shaped wall portions are in nested relationship in the closed position of said cover and container bodies, and said venting means includes at least one passage between said substantially inverted U-shaped wall portions.

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이 특허를 인용한 특허 피인용횟수: 11

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Double seal self-venting container

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Double seal self-venting container

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이 특허에 인용된 특허 (12)

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