Heating element for deodorization

U.S. Patent Number: 5388177

Abstract: A heating element for deodorization contains a metallic substrate, an enamel layer formed on the surface of the metallic substrate, a catalyst layer comprising at least an active alumina, a platinum group metal and a zeolite and formed on the enamel layer, and an electric resistor; the electric resistor being insulated from the environment; and the metallic substrate, the enamel layer, the catalyst layer and the electric resistor being arranged so that heat generated when electric power is applied to the electric resistor is conducted to the catalyst layer through the enamel layer. It can remove unpleasant odor and harmful gases.

Inventors: Ono; Yukiyoshi (Hirakata, JP), Kimura; Kunio (Tsuzuki, JP), Wakita; Hidenobu (Yawata, JP), Yamade; Yasue (Hirakata, JP)

Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP)

Application Number: 08/235,213

Issued: 1995-02-07

Expired: 2007-02-07

Classes: 392/386 ; 219/553; 338/262; 422/174; 422/177; 55/DIG.30; 60/300

Field of search: 392/386 338/254,262,263,275 219/553,548,397-399 60/300 55/DIG.30,389,387 422/177,180,174

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