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:
Apr. 13, 1993
Filed:
Dec. 26, 1991
Applicant:
Inventors:
Tomoharu Kondo, Toki, JP;
Fumio Abe, Handa, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; F01N / ; B01D / ;
U.S. Cl.
CPC ...
219552 ; 219205 ; 392488 ; 428116 ; 60300 ; 422174 ; 55DI / ;
Abstract
A resistance adjusting type heater including a honeycomb structure, electrodes provided on the honeycomb structure, and slits as a resistance adjusting device provided between the electrodes, a sealing device for sealing a heat-non-generating portion of the honeycomb structure, wherein a gas is introduced into the passages of the heat-generating portion of the honeycomb structure and is heated. With this heater, the entirety of the exhaust gas introduced into the heater can be heated rapidly thereby ensuring excellent purification efficiency.