The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1983
Filed:
Aug. 14, 1981
Applicant:
Inventor:
Toshifumi Yamana, Nagoya, JP;
Assignee:
Rinnai Kabushiki Kaisha, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
136217 ; 431 76 ; 431 80 ;
Abstract
A combustion detecting element is provided which comprises an element body generating an electric change which corresponds to a difference in oxygen concentration between a first surface and a second surface thereof. Catalytic electrode layers are provided on both surfaces for carrying out catalytic reaction with combustible gas and a lead wire is connected to each layer, the catalytic electrode layers being characterized in that each catalytic electrode layer has substantially different capabilities in catalytic reaction with combustible gas.