Electric heating – Heating devices – Resistive element: igniter type
Patent
1984-10-11
1985-12-03
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
Resistive element: igniter type
123145A, 219260, 219544, 219553, 252520, 338326, 361266, F23Q 722
Patent
active
045567808
ABSTRACT:
A ceramic heater comprises a heat generator made of a conductive ceramic sintered body, a supporter made of an insulating ceramic sintered body for supporting the heat generator, and a metallic wire for supplying an electric current from an electrode to the heat generator. The heat generator is integrally covered with an unporous covering layer made of an insulating ceramic sintered body. The covering layer prevents the heat generator from being directly exposed to oil and water. The covering layer is made of, for example Si.sub.3 N.sub.4 or glass containing SiO.sub.2 as a main constituent into a thickness of not more than 1mm.
REFERENCES:
patent: 4357526 (1982-11-01), Yamamoto et al.
patent: 4401065 (1983-08-01), Minigishi et al.
patent: 4449039 (1984-05-01), Fukazawa et al.
patent: 4458637 (1984-07-01), Minigishi et al.
patent: 4475029 (1984-10-01), Yoshida et al.
patent: 4486651 (1984-12-01), Atsumi et al.
patent: 4499366 (1985-02-01), Yoshida et al.
Atsumi Kinya
Atsumi Morihiro
Ito Nobuei
Yoshida Hitoshi
Mayewsky Volodymyr Y.
Nippon Soken Inc.
Nippondenso Co. Ltd.
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