[특허]Temperature overshoot heater

Temperature overshoot heater 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-003/10
출원번호	US-0601427 (1975-08-04)
발명자 / 주소	Whitney Wells (Menlo Park CA) Horsma David August (Palo Alto CA)
출원인 / 주소	Raychem Corporation (Menlo Park CA 02)
인용정보	피인용 횟수 : 63 인용 특허 : 0

초록 ▼

Described herein are self-regulating heating articles. The article comprises a constant wattage layer and a layer that exhibits a positive temperature coefficient of resistance (PTC layer). At its steady state condition, the heater is self-regulated by the switching or anomaly temperature Ts of the PTC layer. However, the constant wattage layer has a higher resistance at temperatures below Ts and heats first when the article is connected to a source of electrical power. Means are provided to impede the temperature increase in the PTC layer caused by the heating of the constant wattage layer so that it can heat above Ts before the PTC layer rises to Ts and reduces the current flow to the heater. Further increases in temperature render the PTC layer, for most purposes, non-conductive. Specific impeding means include an electrically conductive, but thermally insulating layer and means that provide for non-uniform heating of the PTC layer so that it remains conductive across a part of its thickness.

대표청구항 ▼

A self-regulating heating article when connected to a source of electrical current having a layered structure comprising: a. a layer of electrically conductive material having a positive temperature coefficient of resistance (PTC layer) and an associated switching temperature Ts; b. an electrical heating layer of constant wattage material (CW layer) having a higher resistance below Ts than does said PTC layer to which it is connected in series; c. electrical terminal connection for said heating article; and d. means for impeding the temperature increase in said PTC layer relative to said constant wattage layer when electrical connection is made to said source of current so that the PTC layer remains electrically conductive through a least a section of its thickness until the temperature of the CW layer rises above Ts.

이 특허를 인용한 특허 (63)

Diaz Stephen H. (Los Altos CA), Article having heating elements comprising conductive polymers capable of dimensional change.
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Horsma David A. (Palo Alto CA) Kamath Hundi P. (Los Altos CA) Fang Shou-Mean (Union City CA), Assemblies of PTC circuit protection devices.
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Duggal, Anil Raj; Levinson, Lionel Monty, Current limiting arrangement and method.
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Anil Raj Duggal ; Siegfried Aftergut ; Larry Neil Lewis ; David Alan Nye, Current limiting device and materials for a current limiting device.
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Duggal Anil Raj ; Aftergut Siegfried ; Lewis Larry Neil ; Nye David Alan, Current limiting device and materials for a current limiting device.
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Duggal Anil Raj ; Aftergut Siegfried ; Lewis Larry Neil ; Nye David Alan, Current limiting device and materials for a current limiting device.
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Duggal Anil Raj ; Lee Minyoung ; Aftergut Siegfried, Current limiting device having a web structure.
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Anil Raj Duggal ; Andrew Jay Salem ; Lionel Monty Levinson ; Michael Leslie Todt, Current limiting device with conductive composite material and method of manufacturing the conductive composite material and the current limiting device.
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Duggal, Anil Raj; Salem, Andrew Jay; Levinson, Lionel Monty; Todt, Michael Leslie, Current limiting device with conductive composite material and method of manufacturing the conductive composite material and the current limiting device.
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Cole Herbert Stanley ; Sitnik-Nieters Theresa Ann ; Duggal Anil Raj, Current limiting device with electrically conductive composite and method of manufacturing the electrically conductive composite.
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Duggal Anil Raj ; Lee Minyoung ; Levinson Lionel Monty, Current limiting device with grooved electrode structure.
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Arnold David ; Duggal Anil R. ; Levinson Lionel M., Current suppressing circuit breaker unit for inductive motor protection.
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D'Amario ; Jr. Ercole,CAX ; Castagna Alfonso,CAX ; Moscovitch Jerry N.,CAX ; Rao Chepur P. ; Larkin Brian S. ; Ferdinand Arthur E., Cutting tool for electrical cable.
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Batliwalla Neville S. ; Thompson James C., Electrical device.
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Walker Jack M. (Portola Valley CA), Electrical devices comprising PTC conductive polymer elements.
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van Konynenburg Peter H., Electrical devices comprising conductive polymer compositions.
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van Konynenburg Peter H. (Palo Alto CA), Electrical devices comprising conductive polymer compositions.
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Jensen Michael L. (Mountain View CA), Electrical devices comprising conductive polymers.
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Aune Ted M. (Fremont CA) Germeraad Paul B. (Menlo Park CA) Chan Randolph W. (Palo Alto CA), Electrical devices comprising fabrics.
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Triplett James T. (Livermore CA) Germeraad Paul B. (Menlo Park CA) Chan Randolph W. (Sunnyvale CA) Jensen Michael L. (Mountain View CA), Electrical devices comprising fabrics.
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Horsma David A. (Palo Alto CA), Electrical devices containing PTC elements.
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Horsma David A. (Palo Alto CA), Electrical devices containing PTC elements.
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D'Amario ; Jr. Ercole,CAX ; Castagna Alfonso,CAX ; Moscovitch Jerry N.,CAX ; Rao Chepur P. ; Larkin Brian S. ; Ferdinand Arthur E., Electrical plug.
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Larkin Brian S., Electrical plug.
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Diaz Stephen H. (Los Altos CA), Heating elements comprising conductive polymers capable of dimensional change.
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Ranjan Radhakrishnan ; Ferguson Donald Kenneth,CAX ; Duggal Anil Raj ; Lee Minyoung, High voltage current limiting device.
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Walker Jack M. (Portola Valley CA), Method for forming laminates comprising an electrode and a conductive polymer layer.
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Horsma David A. (Palo Alto CA) Diaz Stephen H. (Los Altos CA), Self-heating article with deformable electrodes.
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Lyons Bernard J. (Atherton CA) Kim Young J. (East Palo Alto CA), Voltage stable positive temperature coefficient of resistance crosslinked compositions.
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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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