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, 1976
Filed:
Dec. 13, 1973
Applicant:
Inventors:
Yasuhisa Kaneko, Toyota, JA;
Akiyoshi Morita, Toyota, JA;
Yasuo Nemoto, Toyota, JA;
Junichi Nagataki, Toyota, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; F01N / ;
U.S. Cl.
CPC ...
60282 ; 291875 ; 1231 / ; 1231 / ; 1231 / ; 138149 ;
Abstract
The present invention relates to heat insulating castings of triple structure consisting of heat and corrosion resistant metal, heat insulating refractory material, and cast metal. The invention is characterized in that heat and corrosion resistant metal sheet is covered with heat insulating refractory material and the thus formed assembly is enveloped with cast metal. Fringe areas are provided at the ends of the heat and corrosion resistant metal and these fringes are enveloped with cast metal.