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:
Jun. 05, 1990
Filed:
Nov. 26, 1985
Applicant:
Inventors:
Mitsuyoshi Kawamura, Aichi, JP;
Masato Taniguchi, Aichi, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138149 ;
Abstract
A metal-ceramic heat-insulating structure having a metallic tubular member fitted with a hollow cylindrical sintered ceramic, the inner surface of which is to be exposed to elevated temperatures. The sintered ceramic is bound to the metallic tubular member by means of a ceramic powder compacted in a gap located between the two members.