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:
Nov. 24, 1981
Filed:
Sep. 26, 1979
Applicant:
Inventors:
Shigeru Fujiwara, Himeji, JP;
Masayosi Nagahara, Himeji, JP;
Satoshi Nagai, Himeji, JP;
Toshihiro Isobe, Himeji, JP;
Assignees:
Nippon Steel Corporation, Tokyo, JP;
Harima Refractory Co. Ltd., Takasago, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
260 293 ; 423345 ; 260 / ; 260 / ; 260 / ; 260 38 ; 260 / ; 260 / ; 260 4211 ; 501 88 ;
Abstract
A non-fired silicon-carbide base refractory mixture comprising 95 to 99.5% (in respect to the mixture) of silicon carbide containing 1.5 to 8% (in respect to the silicon carbide) of particles not larger than 1.mu. and 0.5 to 5% of super-fine silica powder containing at least 50% of particles not larger than 1.mu. after a coagulation.