[특허]Container with one-step closing

Dart Container Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Container with one-step closing

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-006/28 B65D-006/00 B65D-045/16 B65D-045/00
미국특허분류(USC)	220/004.23; 220/324
출원번호	UP-0908003 (2005-04-25)
등록번호	US-7597206 (2009-10-20)
발명자 / 주소	Atkins, Todd W. Garza, Dean A.
출원인 / 주소	Dart Container Corporation
대리인 / 주소	McGarry Bair PC
인용정보	피인용 횟수 : 47 인용 특허 : 33

초록

A clam-shell container comprising a cover hingedly connected to a tray, with both the cover and tray having cooperating structures that form a leak-proof seal when the clam-shell container is closed. The container and cooperating structures are formed such that the user can effect the formation of the leak-proof seal in a single step. The creation of the leak-proof seal preferably corresponds to the closing of the clam-shell container.

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What is claimed is: 1. A one-piece thermoformed container for storing food items, comprising: a tray comprising a bottom wall from which extends a peripheral wall to define a recess for storing food items, with the peripheral wall terminating in a peripheral flange to define an open top for providing access to the recess; and a cover sized to close the open top of the tray and comprising a top wall terminating in a peripheral flange; a hinge connecting the tray and the cover for relative movement between an opened and a closed condition such that the tray and cover can be relatively moved to selectively close the tray with the cover; a first peripheral seal structure provided on the tray and circumscribing the recess and having a rear portion adjacent the hinge and a front portion opposite the rear portion, with the rear portion having a projection; and a second peripheral seal structure provided on the cover having a rear portion adjacent the hinge and having a front portion opposite the rear portion, with the rear portion having a projection, and the first and second peripheral seal structures cooperate to form a peripheral seal between the tray and the cover circumscribing the tray recess in the closed condition; wherein the cover is vertically offset from the hinge such that the projection on the rear portion of the second peripheral seal is lower than the projection of the rear portion of the first peripheral seal in the opened condition, and the rear portion of the second peripheral seal structure is wider than the rear portion of the first peripheral seal structure, such that upon the relative rotation of the cover and tray, the projection on the rear portion of the second peripheral seal structure hooks with the projection on the rear portion of the first peripheral seal structure to form an axis of rotation therebetween for the subsequent movement of the cover to the closed condition and upon the application of a compression force between the front portions of the first and second seal structures a peripheral seal is formed around the recess to effect a one-step formation of the peripheral seal and thereby form a one-step closing container. 2. The one-piece thermoformed container according to claim 1, wherein the projections on the first and second peripheral seals are formed by intersecting facets. 3. The one-piece thermoformed container according to claim 2, wherein one of the first and second seal structures has an overall polygonal shape when viewed in planform and the other of the first and second seal structures has an overall trapezoidal shape when viewed in planform. 4. The one-piece thermoformed container according to claim 3, wherein the polygonal shape is a rectangle. 5. The one-piece thermoformed container according to claim 1, wherein the front portion of the first peripheral seal structure is located forward of the front portion of the second peripheral seal structure as the container is brought into the closed condition to require the relative deflection between the front portions to move the container into the closed condition. 6. The one-piece thermoformed container according to claim 5, wherein both the first and second peripheral seal structures comprise opposing side portions extending between the corresponding rear portion and front portion, with at least one of the side portions of the first peripheral seal structure having a crown that extends exteriorly of the corresponding side portion of the second peripheral seal structure to require the relative deflection of the at least one of the side portions of the first seal structure and the corresponding side portion of the second seal structure to move the container into the closed condition. 7. The one-piece thermoformed container according to claim 6, wherein the circumference of the first seal structure is substantially the same as the circumference of the second seal structure. 8. The one-piece thermoformed container according to claim 6, wherein one of the first and second seal structures comprises a peripheral shoulder and the other of the first and second seal structures comprises a sealing facet against which the shoulder presses when the cover is in the closed condition to form the substantially liquid-tight seal about the periphery of the recess. 9. The one-piece thermoformed container according to claim 8, wherein a portion of the shoulder deflects against the sealing facet. 10. The one-piece thermoformed container according to claim 8, wherein the shoulder comprises a flat extending along at least one side portion of the one of the first and second seal structures. 11. The one-piece thermoformed container according to claim 10, wherein the one of the first and second peripheral seal structures comprises a first peripheral facet opposite the shoulder and the other of the first and second peripheral seal structures comprises a second peripheral facet opposite the sealing facet and first and second peripheral facets abut each other to form a second peripheral substantially liquid-tight seal about the recess. 12. The one-piece thermoformed container according to claim 11, wherein the shoulder, sealing facet, first facet, and second facet are configured such that sealing facet and second facet apply opposing pressing forces to the shoulder and first facet, respectively. 13. A one-piece thermoformed container for storing food items, comprising: a tray comprising a bottom wall from which extends a peripheral wall to define a recess for storing food items, with the peripheral wall terminating in a peripheral flange to define an open top for providing access to the recess; and a cover sized to close the open top of the tray and comprising a top wall terminating in a peripheral flange; a hinge connecting the tray and the cover for relative movement between an opened and a closed condition such that the tray and cover can be relatively moved to selectively close the tray with the cover; a first peripheral seal structure provided on the tray and circumscribing the recess and having a rear portion adjacent the hinge and a front portion opposite the rear portion, with the rear portion having a projection; a second peripheral seal structure provided on the cover having a rear portion adjacent the hinge and having a front portion opposite the rear portion, with the rear portion having a projection, and the first and second peripheral seal structures cooperate to form a peripheral seal between the tray and the cover circumscribing the tray recess in the closed condition; a bar lock comprising at least one complementary projection and recess, with the projection extending from at least one of the first and second peripheral seal structure and the recess extending below the other of the first and second peripheral seal structure such that projection is received within the recess in the closed condition; and wherein the cover is vertically offset from the hinge such that the projection on the rear portion of the second peripheral seal is lower than the projection of the rear portion of the first peripheral seal in the opened condition, and the rear portion of the second peripheral seal structure is wider than the rear portion of the first peripheral seal structure, such that upon the relative rotation of the cover and tray, the projection on the rear portion of the second peripheral seal structure hooks with the projection on the rear portion of the first peripheral seal structure to form an axis of rotation therebetween for the subsequent movement of the cover to the closed condition and upon the application of a compression force between the projection and recess a peripheral seal is formed around the recess to effect a one-step formation of the peripheral seal and thereby form a one-step closing container. 14. The one-piece thermoformed container according to claim 13, wherein the projections on the first and second peripheral seals are formed by intersecting facets. 15. The one-piece thermoformed container according to claim 13, wherein one of the first and second peripheral seal structures comprises a deformable rounded shoulder and the other of the first and second peripheral seal structures comprises a sealing facet against which the shoulder deforms when the cover is in the closed condition to form a substantially liquid-tight seal between the shoulder and the sealing facet. 16. The one-piece thermoformed container according to claim 15, wherein a portion of the shoulder deflects against the sealing facet. 17. The one-piece thermoformed container according to claim 15, wherein the one of the first and second peripheral seal structures comprises a first peripheral facet opposite the shoulder and the other of the first and second peripheral seal structures comprises a second peripheral facet opposite the sealing facet and the first and second peripheral facets abut each other to form a second peripheral substantially liquid-tight seal about the recess. 18. The one-piece thermoformed container according to claim 17, wherein the shoulder, sealing facet, first facet, and second facet are configured such that sealing facet and second facet apply opposing pressing forces to the shoulder and first facet, respectively. 19. The one-piece thermoformed container according to claim 18 wherein each of the first and second peripheral seal structures comprise a pair of opposing side portions. 20. The one-piece thermoformed container according to claim 19, wherein the shoulder along the pair of opposing side portions of the one of the first and second peripheral seal structures comprises a flat. 21. The one-piece thermoformed container according to claim 13, wherein each of the first and second peripheral seal structures comprises a rear portion near the hinge. 22. The one-piece thermoformed container according to claim 21, wherein the hinge is configured to locate the rear portion of the second peripheral seal structure relative to the rear portion of the first peripheral seal structure such that as the cover is rotated from the opened to the closed condition, the rear portion of the second peripheral seal structure contacts the rear portion of the first seal structure to form an axis of rotation for the subsequent movement of the cover to the closed condition. 23. The one-piece thermoformed container according to claim 22, wherein the hinge is further configured to locate the rear portion of the second peripheral seal structure below the rear portion of the first peripheral seal structure. 24. The one-piece thermoformed container according to claim 22, wherein the rear portion of the second peripheral seal structure is wider than the rear portion of the first peripheral seal structure. 25. The one-piece thermoformed container according to claim 21, wherein each of the first and second peripheral seal structures comprises a front portion opposite the rear portion. 26. The one-piece thermoformed container according to claim 25, and further comprising a pair of spaced indicia in proximity to the front portion and indicating the location where a compressive force can be applied to effect the cooperation of the first and second peripheral seal structures and form the substantially liquid-tight seal. 27. The one-piece thermoformed container according to claim 26, wherein each spaced indicia comprises a mating projection and recess provided on one of the cover and tray, respectively. 28. The one-piece thermoformed container according to claim 27, wherein the projection and recess are configured to lock the cover to the tray when mated. 29. The one-piece thermoformed container according to claim 13, wherein each of the first and second peripheral seal structures has a front portion, a rear portion, and opposing side portions extending between the front and rear portion, with the first peripheral seal structure having a trapezoidal shape and the second peripheral seal structure having a rectangular shape. 30. The one-piece thermoformed container according to claim 29, wherein the rear portion of the first peripheral seal structure is wider the front portion of the first peripheral seal structure. 31. The one-piece thermoformed container according to claim 30, wherein the rear portion of the first peripheral seal structure is wider than the rear portion of the second peripheral seal structure. 32. The one-piece thermoformed container according to claim 31, wherein the side portions of the second peripheral seal structure have a crown that is deflected by the corresponding side portions of the first peripheral seal structure when the cover is moved into the closed condition. 33. The one-piece thermoformed container according to claim 32, wherein the front portion of the second peripheral seal structure is shaped such that it is deflected by the front portion of the first peripheral seal structure when the cover is moved into the closed condition. 34. The one-piece thermoformed container according to claim 33, wherein the circumference of the first and second peripheral seal structures is approximately equal. 35. A one-piece thermoformed container for storing food items, comprising: a tray comprising a bottom wall from which extends a peripheral wall to define a recess for storing food items, with the peripheral wall terminating in a peripheral flange to define an open top for providing access to the recess; and a cover sized to close the open top of the tray and comprising a top wall terminating in a peripheral flange; a hinge connecting the tray and the cover for relative movement between an opened and a closed condition such that the tray and cover can be relatively moved to selectively close the tray with the cover; a first peripheral seal structure provided on the tray and circumscribing the recess and having a rear portion adjacent the hinge and a front portion opposite the rear portion, with the rear portion having a projection; and a second peripheral seal structure provided on the cover having a rear portion adjacent the hinge and having a front portion opposite the rear portion, with the rear portion having a projection, and the first and second peripheral seal structures cooperate to form a peripheral seal between the tray and the cover circumscribing the tray recess in the closed condition; wherein the cover is vertically offset from the hinge such that the projection on the rear portion of the second peripheral seal is lower than the projection of the rear portion of the first peripheral seal in the opened condition, such that upon the relative rotation of the cover and tray, the projection on the rear portion of the second peripheral seal structure hooks with the projection on the rear portion of the first peripheral seal structure to form an axis of rotation therebetween for the subsequent movement of the cover to the closed condition and upon the application of a compression force between the front portions of the first and second seal structures a peripheral seal is formed around the recess to effect a one-step formation of the peripheral seal and thereby form a one-step closing container.

이 특허에 인용된 특허 (33)

이 특허를 인용한 특허 피인용횟수: 47

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Container with one-step closing

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이 특허에 인용된 특허 (33)

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Container with one-step closing

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이 특허에 인용된 특허 (33)

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