[특허]Temperature indicating insulating sleeve for a cooking vessel

Johnson Outdoors Inc.

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특허 상세정보

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Temperature indicating insulating sleeve for a cooking vessel

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01K-011/02 G01K-001/02 A47J-036/00
미국특허분류(USC)	374/162; 116/216
출원번호	US-0867164 (2010-01-07)
등록번호	US-8596863 (2013-12-03)
국제출원번호	PCT/US2010/020339 (2010-01-07)
§371/§102 date	20100811 (20100811)
국제공개번호	WO2010/080888 (2010-07-15)
발명자 / 주소	Lescanec, Robert L. Dowst, W. Perry
출원인 / 주소	Johnson Outdoors Inc.
대리인 / 주소	Reinhart Boerner Van Deuren P.C.
인용정보	피인용 횟수 : 3 인용 특허 : 23

초록
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A cooking vessel sidewall cover is provided with an opening therein and a screen is placed over the opening, with the screen including a layered structured between the cover opening and the vessel to include a non-opaque substrate, a layer of thermochromic colorant that changes from a opaque color to a non-opaque color when exposed to a predetermined temperature, and a layer of indicia material which is visible from an outer side of the substrate opening when the thermochromic ink changes to a non-opaque color. The cover may also include protective trans...

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1. A temperature indicator for a cooking vessel having an internal cavity for receiving a material to be open-flame heated and an outer side surface, comprising: a thermal insulator having a cylindrical sidewall extending between an open top and an open bottom and including a temperature indicating window to be disposed in close proximity to the vessel outer side surface, the open bottom of the thermal insulator adapted to expose a closed bottom of the cooking vessel such that the closed bottom extends axially beyond a lower-most edge of the sidewall of the thermal insulator, and comprising:a non-opaque substrate;a layer of thermochromic ink disposed on an inner side of said substrate and adapted to change from a dark color to a clear color when exposed to a predetermined temperature as caused from the transfer of heat from the vessel outer side surface; anda layer of material disposed on the inner side of said thermochromic ink layer and including indicia that is visible from an outer side of said substrate when said layer of thermochromic ink changes to a transparent color. 2. A temperature indicator as set forth in claim 1 wherein said temperature indicating window is disposed over an inner side of an opening formed in a thermal insulator, said thermal insulator covering a majority of said cooking vessel outer side surface. 3. A temperature indicator as set forth in claim 2 and including an adhesive disposed between an outer surface of said substrate and said thermal insulator. 4. A temperature indicator as set forth in claim 2 and including an inner window disposed between said substrate and said thermal insulator opening. 5. A temperature indicator as set forth in claim 4 and including an adhesive material disposed between said substrate and said inner window. 6. A temperature indicator as set forth in claim 2 and including an outer window disposed on an outer side of said thermal insulator opening. 7. A temperature indicator as set forth in claim 2 and including both an inner transparent window and an outer window disposed on respective inner and outer sides of said thermal insulator opening. 8. A temperature indicator as set forth in claim 2 wherein said substrate comprises an inner window secured to said thermal insulator at a position inside of said opening. 9. A temperature indicator as set forth in claim 2 wherein said substrate comprises an outer window secured to said thermal insulator at a position outside of said opening. 10. A temperature indicator as set forth in claim 2 wherein said substrate is secured to an inner side of said thermal insulator. 11. A method of constructing a temperature indicator for a cooking vessel having an internal cavity for receiving a material to be open-flame heated and an outer side surface, comprising the steps of: providing a thermal insulator having a cylindrical sidewall extending between an open top and an open bottom, the thermal insulator to be placed over the sides of said vessel, said thermal insulator having an opening therein to expose an area of said vessel side surface, and wherein the open bottom of the thermal insulator exposes a closed bottom of the cooking vessel such that the closed bottom extends axially be beyond a lower-most edge of the sidewall of the thermal insulator;providing a non-opaque substrate;providing a layer of thermochromic ink on an inner side of said substrate said ink being adapted to change from a dark color to a clear color when exposed to a predetermined temperature;providing a layer of indicia material on the inner side of said thermochromic ink layer, said layer of indicia material including indicia that is visible from an outer side of said substrate when said layer of thermochromic ink changes to a non-opaque color; andlocating the combination of said substrate, said layer of thermochromic ink, and said layer of indicia material on an inner side of said thermal insulator opening. 12. A method as set forth in claim 11 and including the step of providing an adhesive layer between an outer surface of said substrate and said thermal insulator. 13. A method as set forth in claim 11 and including the step of providing an inner window between said substrate and said thermal insulator opening. 14. A method as set forth in claim 13 and including the step of providing an adhesive material between said substrate and said inner window. 15. A method as set forth in claim 11 and including an outer transparent window disposed on the outer side of said thermal insulator window opening. 16. A method as set forth in claim 11 and including the steps of providing both an inner window and an outer window on the respective and inner and outer sides of said thermal insulator opening. 17. A method as set forth in claim 11 wherein said substrate comprises an inner window secured to said thermal insulator at a position inside of said opening. 18. A method as set forth in claim 11 wherein said substrate comprises a window secured to said thermal insulator at a position outside of said opening. 19. A method as set forth in claim 11 wherein said substrate is attached to an inner side of said thermal insulator. 20. A temperature indicator for a cooking vessel having an internal cavity for receiving a material to be open-flame heated and an outer side surface, comprising: a thermal insulator having a cylindrical sidewall extending between an open top and an open bottom covering a majority of a side surface of said cooking vessel, said thermal insulator having an opening to said side surface of said cooking vessel, and wherein the open bottom exposes a closed bottom of the cooking vessel such that the closed bottom extends axially beyond a lower most edge of the sidewall of the thermal insulator;a temperature indicating window to be disposed in close proximity to said side surface of said cooking vessel, said temperature indicating window disposed over an inner side of said opening formed in said thermal insulator; said temperature indicating window comprising:a layer of thermochromic ink disposed on an inner side of a substrate and adapted to change from a dark color to a clear color when exposed to a predetermined temperature as caused from the transfer of heat from the vessel outer side surface; anda layer of material disposed on the inner side of said thermochromic ink layer and including indicia that is visible from an outer side of said substrate when said layer of thermochromic ink changes to a transparent color. 21. A cooking assembly for cooking a material using an open flame heat source, the assembly comprising: a cooking vessel having a generally cylindrical sidewall extending between an open top and a closed bottom to define an internal cavity for receiving the material, the generally cylindrical sidewall having an outer side surface;a thermal insulator having a cylindrical sidewall extending between an open top and an open bottom and including a temperature indicating window to be disposed in close proximity to the vessel outer side surface and comprising: a non-opaque substrate;a layer of thermochromic ink disposed on an inner side of said substrate and adapted to change from a dark color to a clear color when exposed to a predetermined temperature as caused from the transfer of heat from the vessel outer side surface;a layer of material disposed on the inner side of said thermochromic ink layer and including indicia that is visible from an outer side of said substrate when said layer of thermochromic ink changes to a transparent color;wherein the closed bottom of the cooking vessel is exposed through the open bottom of the thermal insulator such that the closed bottom extends axially beyond a lower-most edge of the sidewall of the thermal insulator.

이 특허에 인용된 특허 (23)

이 특허를 인용한 특허 피인용횟수: 3

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Temperature indicating insulating sleeve for a cooking vessel

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Temperature indicating insulating sleeve for a cooking vessel

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