IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0628158
(2012-09-27)
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등록번호 |
US-8883237
(2014-11-11)
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발명자
/ 주소 |
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출원인 / 주소 |
- The Ovenable Paper Pan Company LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
38 |
초록
▼
An ovenable paper container containing an inner liner, an outer liner, and an intermediate or corrugated paper layer positioned between the inner liner and the outer liner. The ovenable paper container can be used to heat and/or cook food and then be used as a serving container without the danger of
An ovenable paper container containing an inner liner, an outer liner, and an intermediate or corrugated paper layer positioned between the inner liner and the outer liner. The ovenable paper container can be used to heat and/or cook food and then be used as a serving container without the danger of causing burns.
대표청구항
▼
1. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising an inner liner, an outer liner and a corrugated layer positioned between said inner and outer liners; said corrugated layer is formed of a plurality of flutes; said outer liner
1. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising an inner liner, an outer liner and a corrugated layer positioned between said inner and outer liners; said corrugated layer is formed of a plurality of flutes; said outer liner having an upper and a lower surface, said outer liner having a weight of at least about 10 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of at least about 20 pounds per thousand square feet, said inner liner is formed of a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said base portion is generally planar; said rim extending upwardly from a peripheral edge of said base portion; a transition region is positioned between said base portion and said rim; an upper surface of said rim and an upper surface of said base portion and said connection between said rim and said base portion are absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; said upper surface of said rim and said base portion are designed to engage a food product that is placed on said ovenable container; said corrugated layer having a weight of at least about 1 pound per thousand square feet; said corrugated layer is at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive; said inner liner including a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings are designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being at least partially entrapped between said inner liner and said outer liner; a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 2. The ovenable container as defined in claim 1, wherein said upper surface of said inner liner is embossed to allow air to circulate underneath food positioned on said upper surface of said inner liner during heating of the food. 3. The ovenable container as defined in claim 2, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer are connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion. 4. The ovenable container as defined in claim 3, wherein said inner liner has a weight that is greater than a weight of said corrugated layer, said weight of said inner liner is greater than a weight of said outer liner. 5. The ovenable container as defined in claim 4, including a polymeric coating, said polymer coating is present on said inner liner, said inner liner includes said polymeric coating on said upper surface of said inner liner, said polymeric coating is designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container. 6. The ovenable container as defined in claim 1, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer are connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion. 7. The ovenable container as defined in claim 1, wherein said inner liner has a weight that is greater than a weight of said corrugated layer, said weight of said inner liner is greater than a weight of said outer liner. 8. The ovenable container as defined in claim 1, including a polymeric coating, said polymer coating is present on said inner liner, said inner liner includes said polymeric coating on said upper surface of said inner liner, said polymeric coating is designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container. 9. The ovenable container as defined in claim 1, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer are connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°. 10. The ovenable container as defined in claim 9, wherein there is no seam between said base portion and said rim of said outer liner and said corrugated paper layer. 11. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising a inner liner, an outer liner and a corrugated layer positioned between said inner and outer liners; said corrugated layer is formed of a plurality of flutes; said inner and outer liners are formed of a non-corrugated substrate; said outer liner having an upper and lower surface, said outer liner having a weight of at least about 10 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of at least about 20 pounds per thousand square feet, said inner liner is formed of a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said base portion is generally planar; said rim extending upwardly from a peripheral edge of said base portion; a transition region is positioned between said base portion and said rim; an upper surface of said rim and an upper surface of said base portion and said connection between said rim and said base portion are absent a seam; said upper surface of said rim and said base portion are designed to engage a food product that is placed on said ovenable container; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; said corrugated layer having a weight of at least about 1 pounds per thousand square feet; said weight of said inner liner is greater than said weight of said outer liner; said weight of said inner liner is greater than said weight of said corrugated layer; said corrugated layer is at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive; a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 12. The ovenable container as defined in claim 11, wherein said upper surface of said base portion and said rim of said inner liner is embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper surface of said inner liner during heating of the food. 13. The ovenable container as defined in claim 12, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer are connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°. 14. The ovenable container as defined in claim 13, wherein said inner liner has a weight of about 50 to about 100 pounds per thousand square feet, said outer liner has a weight of about 10 to about 70 pounds per thousand square feet, said corrugated paper layer has a weight of about 10 to about 70 pounds per thousand square feet. 15. The ovenable container as defined in claim 14, wherein there is no seam between said base portion and said rim of said outer liner and said corrugated paper layer. 16. The ovenable container as defined in claim 11, wherein said inner liner has a weight of about 50 to about 100 pounds per thousand square feet, said outer liner has a weight of about 10 to about 70 pounds per thousand square feet, said corrugated layer has a weight of about 10 to about 70 pounds per thousand square feet. 17. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising a paper inner liner, a paper outer liner, a corrugated paper layer positioned between said inner and outer liners, and a polymeric coating; said inner and outer liners are formed of a non-corrugated paper substrate; said outer liner having an upper and lower surface, said outer liner having a weight of at least about 10 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of at least about 20 pounds per thousand square feet; said inner liner, said outer liner and said corrugated paper layer include a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said base portion is generally planar; said rim extending upwardly from a peripheral edge of said base portion; a transition region is positioned between said base portion and said rim; an upper surface of said rim, an upper surface of said base portion; and said connection between said rim and said base portion of said inner liner are absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; said upper surface of said rim and said base portion of said inner liner are designed to engage a food product that is placed on said ovenable container; said polymeric coating present on said inner liner and coated on said upper surface of said rim and base portion of said inner liner, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating applied to said upper surface of said rim and base portion of said inner liner in an amount of at least about 2 pounds per thousand square feet; said corrugated paper layer having a weight of about 1 pound per thousand square feet, said corrugated paper layer is formed of a plurality of flutes; said weight of said inner liner is greater than said weight of said outer liner; said weight of said inner liner is greater than said weight of said corrugated paper layer; said corrugated paper layer is at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive that includes a starch; said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°; a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 18. The ovenable container as defined in claim 17, wherein said inner liner including a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings are designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being at least partially entrapped between said inner liner and said outer liner. 19. The ovenable container as defined in claim 18, wherein said upper surface of said base portion and said rim of said inner liner is embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper surface of said inner liner during heating of the food, a plurality of indentations include at least one of said openings. 20. The ovenable container as defined in claim 17, wherein said upper surface of said base portion and said rim of said inner liner is embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper surface of said inner liner during heating of the food, a plurality of indentations include at least one of said openings. 21. The ovenable container as defined in claim 17, including a lid designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges that is designed to engage said peripheral edge of said rim of said inner liner. 22. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising a lid, a paper inner liner, a paper outer liner, a corrugated paper layer positioned between said inner and outer liners, and a polymeric coating; said inner and outer liners are formed of a non-corrugated paper substrate; said outer liner having an upper and lower surface, said outer liner having a weight of at least about 10 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of at least about 20 pounds per thousand square feet; said inner liner, said outer liner and said corrugated paper layer include a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said base portion is generally planar; said rim extending upwardly from a peripheral edge of said base portion; a transition region is positioned between said base portion and said rim; an upper surface of said rim, an upper surface of said base portion; and said connection between said rim and said base portion of said inner liner are absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; said upper surface of said rim and said base portion of said inner liner are designed to engage a food product that is placed on said ovenable container; said polymeric coating present on said inner liner and coated on said upper surface of said rim and base portion of said inner liner, said polymeric coating designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container, said polymeric coating applied to said upper surface of said rim and base portion of said inner liner in an amount of at least about 2 pounds per thousand square feet; said corrugated paper layer having a weight of about 1 pound per thousand square feet, said corrugated paper layer is formed of a plurality of flutes; said weight of said inner liner is greater than said weight of said outer liner; said weight of said inner liner is greater than said weight of said corrugated paper layer; said corrugated paper layer is at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive that includes a starch; said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°; said lid designed to be releasably secured to a peripheral edge of said rim of said inner liner; said lid including curved end edges that is designed to engage said peripheral edge of said rim of said inner liner, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 23. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising an inner liner, an outer liner and a corrugated layer that is positioned between said inner and outer liners; said corrugated layer formed of a plurality of flutes; said inner and outer liners are formed of a non-corrugated substrate; said outer liner having an upper and lower surface, said outer liner having a weight of at least about 10 pounds per thousand square feet, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner having a weight of at least about 20 pounds per thousand square feet, said inner liner is formed of a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said base portion is generally planar; said rim extending upwardly from a peripheral edge of said base portion; an upper surface of said rim and an upper surface of said base portion and said connection between said rim and said base portion are absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; a transition region is positioned between said base portion and said rim; said upper surface of said rim and said base portion are designed to engage a food product that is placed on said ovenable container; said corrugated layer having a weight of at least about 1 pound per thousand square feet; said inner liner having a different weight than at least one of said corrugated layer and said outer liner; said corrugated layer at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive; a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 24. The ovenable container as defined in claim 23, wherein said weight of said inner liner is different from said weight of said corrugated paper layer. 25. The ovenable container as defined in claim 24, wherein said weight of said inner liner is the same as said weight of said outer liner. 26. The ovenable container as defined in claim 25, wherein said weight of said inner liner is greater than said weight of said corrugated paper layer. 27. The ovenable container as defined in claim 24, wherein said weight of said inner liner is different from said weight of said outer liner. 28. The ovenable container as defined in claim 27, wherein said weight of said inner liner is greater than said weight of said corrugated paper layer. 29. The ovenable container as defined in claim 24, wherein said weight of said inner liner is greater than said weight of said corrugated paper layer. 30. The ovenable container as defined in claim 23, wherein said weight of said inner liner is the same as said weight of said corrugated paper layer. 31. The ovenable container as defined in claim 30, wherein said weight of said inner liner is different from said weight of said outer liner. 32. The ovenable container as defined in claim 23, wherein said weight of said inner liner is different from said weight of said outer liner. 33. The ovenable container as defined in claim 23, wherein said weight of said inner liner is the same as said weight of said outer liner. 34. The ovenable container as defined in claim 23, wherein said upper surface of said base portion and said rim of said inner liner are embossed to create indentations having a surface that is below a plane of said upper surface of said inner liner, said embossed upper surface allowing air to circulate underneath food positioned in said upper surface of said inner liner during heating of the food. 35. The ovenable container as defined in claim 23, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°. 36. The ovenable container as defined in claim 23, including a lid that is designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges that are designed to engage said peripheral edge of said rim of said inner liner. 37. The ovenable container as defined in claim 23, wherein said upper surface of said inner liner is embossed to allow air to circulate underneath food positioned on said upper surface of said inner liner during heating of the food. 38. The ovenable container as defined in claim 23, including a polymeric coating, said polymer coating present on said inner liner, said inner liner includes said polymeric coating on said upper surface of said inner liner, said polymeric coating is designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container. 39. The ovenable container as defined in claim 23, wherein said inner liner includes a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings are designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being at least partially entrapped between said inner liner and said outer liner. 40. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising an inner liner, an outer liner and a corrugated layer that is positioned between said inner and outer liners; said corrugated layer formed of a plurality of flutes; said inner and outer liners are formed of a non-corrugated substrate; said outer liner having an upper and lower surface, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner is formed of a base portion and a rim; said rim is connected to and at least partially encircling said base portion; said rim extending upwardly from a peripheral edge of said base portion; an upper surface of said rim and an upper surface of said base portion and said connection between said rim and said base portion is absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; a transition region is positioned between said base portion and said rim; said upper surface said base portion is designed to engage a food product that is placed on said ovenable container; said inner liner having a different weight than at least one of said corrugated layer and said outer liner; said corrugated layer at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive; a height of at least a portion of said flutes located in said rim is less than a height of at least a portion of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion. 41. The ovenable container as defined in claim 40, wherein said weight of said inner liner is different from said weight of said corrugated paper layer. 42. The ovenable container as defined in claim 41, wherein said weight of said inner liner is the same as said weight of said outer liner. 43. The ovenable container as defined in claim 42, wherein said weight of said inner liner is greater than said weight of said corrugated paper layer. 44. The ovenable container as defined in claim 41, wherein said weight of said inner liner is greater than said weight of said corrugated paper layer. 45. The ovenable container as defined in claim 40, wherein said weight of said inner liner is the same as said weight of said outer liner. 46. The ovenable container as defined in claim 40, wherein said upper surface of said base portion of inner liner is embossed to create indentations, said embossed upper surface allowing air to circulate underneath food positioned on said upper surface of said inner liner during heating of the food. 47. The ovenable container as defined in claim 40, wherein said outer liner and said corrugated layer are formed of a base portion and a rim, said rim of said outer liner and said corrugated layer connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion, said rim of said inner liner extending upwardly from said base portion of said inner liner at an angle of at least about 25°. 48. The ovenable container as defined in claim 40, including a lid that is designed to be releasably secured to a peripheral edge of said rim of said inner liner, said lid including curved end edges that are designed to engage said peripheral edge of said rim of said inner liner. 49. The ovenable container as defined in claim 40, including a polymeric coating, said inner liner includes said polymeric coating on said upper surface of said inner liner, said polymeric coating on said inner liner is designed to engage a food product that is placed on said ovenable container and to inhibit the food product from sticking to said ovenable container while the food is heated on said ovenable container. 50. The ovenable container as defined in claim 40, wherein said inner liner includes a plurality of openings that fully pass through said inner liner, a majority of said openings do not fully pass through said outer liner, said openings are designed to allow a liquid to pass through said openings in said inner liner and result in the liquid being at least partially entrapped between said inner liner and said outer liner. 51. The ovenable container as defined in claim 40, wherein an average height ratio of said flutes located in said rim to said flutes located in said base portion is about 0.001-0.9:1. 52. An ovenable container that can be exposed to temperatures of at least about 200° F., said ovenable container comprising an inner liner, an outer liner and a corrugated layer that is positioned between said inner and outer liners; said corrugated layer formed of a plurality of flutes; said inner and outer liners are formed of a non-corrugated substrate; said outer liner having an upper and lower surface, said lower surface of said outer liner forming a bottom surface of said ovenable container; said inner liner having a lower surface, said inner liner is formed of a base portion and a rim; said rim is connected to and at least partially encircling said base portion, said rim extending upwardly from a peripheral edge of said base portion; an upper surface of said rim and an upper surface of said base portion and said connection between said rim and said base portion are absent a seam; a majority of said upper surface of said rim at a higher elevation than said upper surface of said base portion; a transition region is positioned between said base portion and said rim; said upper surface said base portion is designed to engage a food product that is placed on said ovenable container; said inner liner having a different weight than at least one of said corrugated layer and said outer liner; said corrugated layer at least partially connected to at least one of said upper surface of said outer liner and said lower surface of said inner liner by an adhesive; a height of a majority of said flutes located in said rim is less than a height of a majority of said flutes in said base portion, a height of a majority of said flutes located in said rim is less than a height of at least one flute in said transition region, said at least one flute in said transition region has a height that is less than a height of a majority of said flutes in said base portion.
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