[특허]Graphite composite cookware

[미국특허] Graphite composite cookware 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47J-027/00
출원번호	US-0629356 (1984-07-10)
발명자 / 주소	Woolf, Lawrence D.
출원인 / 주소	GA Technologies Inc.
대리인 / 주소	Fitch, Even, Tabin & Flannery
인용정보	피인용 횟수 : 27 인용 특허 : 3

초록 ▼

Multi-ply cookware having inner and outer plies of aluminum or stainless steel encasing an intermediate ply of a graphite material. The graphite material, which has thermally anisotropic properties, is oriented so that its thermal conductivity is higher in the plane parallel to the surface of the cookware than in the direction perpendicular to the surface. Accordingly, when the cookware is placed over a localized heat source, the intermediate graphite ply effectively conducts and distributes the heat provided by the burner throughout the plane parallel to the surface of the cookware before the heat propagates in the direction perpendicular to the surface of the cookware, thus minimizing hot spots on the inner surface.

대표청구항 ▼

1. Multi-ply cookware having an inner surface for contacting the food to be cooked therein and an outer surface contacting the heat source comprising, in combination, an inner ply; an outer ply; and an intermediate ply in the heating region of the cookware of a thermally anisotropic graphite material, the intermediate ply being encased by the inner and outer plies and being oriented with its carbon layers being parallel to the surface of the cookware so that its thermal conductivity is higher in the plane parallel to the surface of the cookware than in the direction perpendicular to the surface. 2. The combination of claim 1 wherein the inner and outer plies are a metal selected from the group consisting of aluminum and stainless steel. 3. The combination of claim 1 wherein the graphite material has anisotropy ratio of at least 12 and is between 0.010 and 0.05 inches thick. 4. A cookware comprising: a body having inner heated surface for contacting the food; an outer bottom surface on the body for contacting a localized heat source and for transmitting heat in an isotropic manner; and a interior layer of thermally anisotropic graphite between the inner and outer surfaces oriented with its carbon layers being parallel to the surface of the cookware so that its thermal conductivity is higher in a plane parallel to the bottom heated surface than in the direction perpendicular thereto to distribute the heat more evenly to the inner heated surface, the graphite being between 0.010 and 0.05 inches thick and having an anisotropy ratio of at least 12.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Zani Tarcisio (Lumezzane Pieve ; Via IV Novembre 3 Brescia ITX), Cooking utensil.
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Conant Louis A. (Rochester NY) Bolton Wilbur M. (Rochester NY) Wilson James E. (Livonia NY), Energy saving heating vessel.
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Brogan Joseph (Kent WA), Truss core panels.
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이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

Groll, William A., Bonded metal components having uniform thermal conductivity characteristics.
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Groll, William A., Bonded metal components having uniform thermal conductivity characteristics and method of making same.
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Groll,William A., Bonded metal components having uniform thermal conductivity characteristics and method of making same.
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Feng, Zhihui; Zhang, Junbin, Cooking pan.
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Feng, Zhihui; Zhang, Junbin, Cooking pan.
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Mathieu, Randall, Cooking utensil.
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Groll, William A.; Watkins, John, Cooking utensil having a graphite core.
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Maravic, Dusko; Rastberger, Sebastian, Cooking utensil with a deformation-free base, and method for producing said cooking utensil.
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Groll, William A., Easy clean cookware.
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Nesbitt, Bruce, Electrosurgical electrode and method of manufacturing same.
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Nesbitt, Bruce, Electrosurgical electrode and method of manufacturing same.
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Nesbitt, Bruce, Electrosurgical electrode and method of manufacturing same.
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Faulkner Roger, Foodware with ceramic food contacting surface.
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Groll, William A., Graphite encapsulated cookware.
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Selwyn, Gary S., Hollow-cavity, gas-filled cookware.
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England, Raymond O.; Froeschle, Thomas A.; Beverly, David W., Induction cookware.
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Norley, Julian; Brady, John Joseph; Getz, George; Klug, Jeremy, Laminates prepared from impregnated flexible graphite sheets.
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Rubio, Martin; Tuffe, Stephane, Method for obtaining a cooking vessel having a colored hard-anodized outer face.
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Cheng,Stanley Kin Sui, Method of fabricating titanium lined composite cookware.
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McGinn, Seth D., Portable can cooker apparatus and method.
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Wardani Dewi Sri,IDX, Pot with lockable lid.
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Kerber, Tom, Solar energy collecting assembly for a solar energy converter.
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Yoshihara,Satoshi; Hirama,Masahide; Kuno,Yoshinori, Solid-state image sensing device, driving method thereof, and image scanner.
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Saga, Yuji, Thermally conductive polymer compositions and articles made therefrom.
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Saga, Yuji; Une, Narumi, Thermally conductive thermoplastic resin compositions and related applications.
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Moons, Roger, Thermoplastic polymeric ovenware.
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Moons, Roger, Thermoplastic polymeric ovenware.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Graphite composite cookware 원문보기