Container having a rim or other feature encapsulated by or formed from injection-molded material
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-001/42
B65D-006/34
B29C-070/80
출원번호
US-0787769
(2007-04-18)
등록번호
US-8540111
(2013-09-24)
발명자
/ 주소
Middleton, Scott William
Sinclair, Mark Richard
O'Hagan, Brian Robert
Wnek, Patrick Henry
Lafferty, Terrence Philip
Blaas, Peter Walrave
Hjort, Kevin James
Smith, Patrick James
출원인 / 주소
Graphic Packaging International, Inc.
대리인 / 주소
Womble Carlyle Sandridge & Rice, LLP
인용정보
피인용 횟수 :
4인용 특허 :
87
초록▼
A container or tray having various features. The container or tray comprises at least one sidewall having a top edge, the top edge of the at least one sidewall corresponding to a top surface of the tray and a bottom surface adjacent to the sidewall. A flange extends laterally outward from the top ed
A container or tray having various features. The container or tray comprises at least one sidewall having a top edge, the top edge of the at least one sidewall corresponding to a top surface of the tray and a bottom surface adjacent to the sidewall. A flange extends laterally outward from the top edge and is foldably connected to the sidewall at the top edge. The flange comprises at least a portion of the top surface of the tray. An injection-molded feature at least partially encapsulates the flange. The injection-molded feature comprising resin and has a first region in contact with the sidewall and at least a portion of the flange, and a second region adjacent the first region and extending laterally outward from the first region to a free edge of the injection-molded feature. The first region has a greater cross-sectional area than the second region.
대표청구항▼
1. A tray having an at least partially encapsulated flange, the tray comprising: at least three sidewalls each having a top edge, the top edge of the at least three sidewalls corresponding to a top surface of the tray;a bottom surface adjacent to the at least three sidewalls;a flange extending later
1. A tray having an at least partially encapsulated flange, the tray comprising: at least three sidewalls each having a top edge, the top edge of the at least three sidewalls corresponding to a top surface of the tray;a bottom surface adjacent to the at least three sidewalls;a flange extending laterally outward from the top edge and being foldably connected to the at least three sidewalls at the top edge, the flange comprising at least a portion of the top surface of the tray;a junction between the sidewalls and the flange at the top edge of the at least three sidewalls, the flange extends laterally outward from the junction and is foldably connected to the sidewalls at the junction;an injection-molded feature at least partially encapsulating the flange, the injection-molded feature comprising resin and having a first region in contact with the at least three sidewalls and at least a portion of the flange, and a second region adjacent the first region and extending laterally outward from the first region to a free edge of the injection-molded feature, the first region has a greater cross-sectional area than the second region;at least two corners, wherein each of the at least three sidewalls has two curved portions and an intermediate portion between the two curved portions, adjacent curved portions of each of the sidewalls form a respective corner of the at least two corners,the first region and the second region of the injection-molded feature extend around a perimeter of the tray with the first region in contact with the intermediate portion and the two curved portions of each of the at least three sidewalls. 2. The tray of claim 1, wherein the injection-molded feature comprises at least one handle. 3. The tray of claim 2, wherein the at least one handle is hinged to allow the at least one handle to fold over the interior surface of the tray. 4. The tray of claim 1 further comprising an interior coating at least partially covering the bottom surface and the at least one sidewall. 5. The tray of claim 4, further comprising an injection-molded interior divider situated atop the bottom surface and dividing the bottom surface into at least a first interior cavity and a second interior cavity. 6. The tray of claim 5, further comprising: a first material located in the first interior cavity between the interior coating and the bottom surface, the first material being selected from the group comprising microwave transparent materials, microwave reflective materials, and microwave absorbing materials; anda second material located in the second interior cavity between the interior coating and the bottom surface, the second material being selected from the group comprising microwave transparent materials, microwave reflective materials, and microwave absorbing materials. 7. The tray of claim 6, wherein said first material has a first microwave interactive property, wherein said second material has a second microwave interactive property, and wherein the first microwave interactive property is different from the second microwave interactive property. 8. The tray of claim 1 wherein the first region is an advanced-flow section shaped to correspond to an advance-flow section of an injection cavity of a tool for forming the injection molded feature and the second region is a delayed-flow section shaped to correspond to a delayed-flow section of the injection cavity. 9. The tray of claim 8 wherein the delayed-flow section comprises a flange-section below and in contact with at least a portion of the flange. 10. The tray of claim 9 wherein the delayed-flow section comprises a resin-only section that extends beyond a free edge of the flange. 11. The tray of claim 10 wherein the resin-only section, a top surface of the flange, and the top edge of the sidewall comprises the top surface of the tray. 12. The tray of claim 11 wherein the top surface is a planar surface having a continuous surface extending across the top edge of the sidewall, the top surface of the flange, and the resin-only section. 13. The tray of claim 1, wherein said injection-molded feature is formed from a resin impregnated with glass fibers. 14. The tray of claim 13, wherein said glass fibers minimize shrinkage of said resin. 15. The tray of claim 14, wherein said resin shrinks in response to cooling. 16. The tray of claim 13, wherein said glass fibers minimize distortion of said tray due to shrinkage of said resin. 17. The tray of claim 1, wherein the tray is formed of fiberboard capable of withstanding heat up to approximately four hundred degrees Fahrenheit; andthe injection-molded feature substantially retains its shape and rigidity in heat up to approximately four hundred twenty-five degrees Fahrenheit. 18. The tray of claim 1 wherein the first region is in contact with an upper portion of the sidewall that is adjacent to the top edge of the sidewall. 19. The tray of claim 1 wherein the tray comprises paperboard and the junction comprises a fold in the paperboard that foldably connects the flange and the sidewall. 20. The tray of claim 1 wherein the junction extends continuously around an entire perimeter of the tray. 21. The tray of claim 1 wherein the first region and the second region of the injection-molded feature extends continuously around the perimeter of the tray with the first region being in contact with the underside of the flange along the perimeter of the flange between the at least two corners. 22. The tray of claim 1 wherein the at least three side panels comprises four side panels and the at least two corners comprises four corners, the first region and the second region of the injection-molded feature extends continuously around the perimeter of the tray with the first region being in contact with the underside of the flange along the entire perimeter of the flange.
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