Functionally stepped, resistive ceramic

Details Functionally stepped, resistive ceramic Functionally stepped, resistive ceramic

1996-03-12

1999-03-09

Walberg, Teresa J.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219539, 338312, 252506, 252516, 501 95, H05B 358, H01C 1012, H01B 106, C04B 3503

Patent

active

058804390

ABSTRACT:
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.

REFERENCES:
patent: 2406275 (1946-08-01), Wejnarth
patent: 2971039 (1961-02-01), Westeren
patent: 3875476 (1975-04-01), Crandall et al.
patent: 3895219 (1975-07-01), Richerson et al.
patent: 4098725 (1978-07-01), Yamamoto et al.
patent: 4110260 (1978-08-01), Yamamoto et al.
patent: 4327186 (1982-04-01), Murata et al.
patent: 4407971 (1983-10-01), Komatsu et al.
patent: 4416840 (1983-11-01), Lee et al.
patent: 4449039 (1984-05-01), Fukazawa et al.
patent: 4475029 (1984-10-01), Yoshida et al.
patent: 4486651 (1984-12-01), Atsumi et al.
patent: 4503319 (1985-03-01), Moritoki et al.
patent: 4528121 (1985-07-01), Matsushita et al.
patent: 4549905 (1985-10-01), Yamaguchi et al.
patent: 4555358 (1985-11-01), Matsushita et al.
patent: 4634837 (1987-01-01), Ito et al.
patent: 4697165 (1987-09-01), Ishiguro et al.
patent: 4883947 (1989-11-01), Murase et al.
patent: 4920640 (1990-05-01), Enloe et al.
patent: 5045237 (1991-09-01), Washburn
patent: 5060671 (1991-10-01), Counts et al.
patent: 5085804 (1992-02-01), Washburn
patent: 5093894 (1992-03-01), Deevi et al.
patent: 5139594 (1992-08-01), Rabin
patent: 5146934 (1992-09-01), Deevi et al.
patent: 5157242 (1992-10-01), Hetherington et al.
patent: 5188130 (1993-02-01), Hajaligol et al.
patent: 5191508 (1993-03-01), Axelson
patent: 5223064 (1993-06-01), Gadkaree
patent: 5224498 (1993-07-01), Deevi et al.
patent: 5353813 (1994-10-01), Deevi et al.
patent: 5369723 (1994-11-01), Counts et al.
patent: 5498855 (1996-03-01), Deevi et al.
patent: 5530225 (1996-06-01), Hajaligol
"Joining of Ceramics" by R.E. Loehman et al., published in Ceramic Bulletin, vol. 67 No., 2, pp. 375-380 (1988).
"Oxidation Behavior of Silver-and Copper-Based Brazing Filler Metals for Silicon Nitride/Metal Joints" by R.R. Kapoor et al., published in J. Am. Ceram. Soc., vol. 72 No., 3, pp. 448-454 (1989).
"Brazing Ceramic Oxides to Metals at Low Temperatures" by J.P. Hammond et al., published in Welding Research Supplement, pp. 227-232-s, (1988).
"Brazing of Titanium-Vapor-Coated Silicon Nitride" by M.L. Santella published in Advanced Ceramic Materials, vol. 3 No., 5, pp. 457-465 (1988).
"Microstructure of Alumina Brazed with a Silver-Copper-Titanium Alloy" by M.L. Santella et al., published in J. Am. Ceram. Soc., vol. 73 No., 6, pp. 1785-1787 (1990).
"New Z-direction Anisotropically Conductive Composites" by S. Jin et al., published in J. Appl. Phys., vol. 64 No., 10, pp. 6008-6010 (1988).
"Composite PTCR Thermistors Utilizing Conducting Borides, Silicides, and Carbide Powders" by T.R. Shrout et al., published in J. Materials Science, vol. 26, pp. 145-154 (1991).
"Diffusional Reactions in the Combustion Synthesis of MoSi.sub.2 " by S.C. Deevi, published in Materials Science and Engineering, vol. A149, pp. 241-251 (1992).
"Self-propogating High-temperature Synthesis of Molybdenum Disilicide" by S.C. Deevi, published in J. Materials Science, vol. 26, pp. 3343-3353 (1991).

Affiliated with

Also associated with

Rating

Functionally stepped, resistive ceramic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Functionally stepped, resistive ceramic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functionally stepped, resistive ceramic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1323489