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. 21, 1987
Filed:
Aug. 30, 1985
Applicant:
Inventors:
Tadaaki Matsuhisa, Kasugai, JP;
Kiminari Kato, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
165-8 ; 165 10 ;
Abstract
The disclosed ceramic heat exchanger has a stress relief layer disposed in the proximity of joint between a hollow hub and a honeycomb structural body integrally joined to the outer circumference of the hub, the stress relief layer having the difference in thermal expansion of not greater than 0.1% at 800.degree. C. relative to the hub.