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:
Mar. 19, 1985
Filed:
Mar. 22, 1984
Applicant:
Inventors:
Thomas R Kleeb, Pittsburgh, PA (US);
George H Criss, Bethel Park, PA (US);
Donald O McCreight, Bethel Park, PA (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501124 ; 501133 ;
Abstract
A castable silica refractory consisting essentially of 58-78 by weight percent amorphous silica selected from the group consisting of vitreous and fused silica or a combination thereof; 10-30 by weight percent quartzite; 4-10 by weight percent volatilized silica; 2-3 by weight percent wollastonite powder; and 1-3 by weight percent white portland cement; plus as additions about 0.4 by weight percent water reducing agent and 6-10 by weight percent water.