发明授权
- 专利标题: Functionally stepped, resistive ceramic
- 专利标题(中): 功能梯级,电阻陶瓷
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申请号: US614058申请日: 1996-03-12
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公开(公告)号: US5880439A公开(公告)日: 1999-03-09
- 发明人: Seetharama C. Deevi , A. Clifton Lilly, Jr.
- 申请人: Seetharama C. Deevi , A. Clifton Lilly, Jr.
- 申请人地址: NY New York
- 专利权人: Philip Morris Incorporated
- 当前专利权人: Philip Morris Incorporated
- 当前专利权人地址: NY New York
- 主分类号: B32B18/00
- IPC分类号: B32B18/00 ; C04B35/58 ; C04B35/593 ; H01C7/00 ; H01C17/30 ; H05B3/14 ; H05B3/58 ; C04B35/03 ; H01B1/06 ; H01C1/012
摘要:
An electrically powered functionally graded ceramic composite heater and a functionally stepped ceramic composite heater useful for cigarette lighters. The electrical resistance heater includes discrete heating zones wherein each zone of the heater can be activated using an electric control module, and is capable of heating to a temperature in the range of 600.degree. C. to 900.degree. C. using portable energy devices. The ceramic heater can be made by pressing together layers of differing amounts of constituents of the ceramic precursor material followed by secondary processing steps to obtain discrete heating elements. The heater design can include a hub on one end to provide structural integrity, and function as a common for the heating zones.
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