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:
Sep. 29, 1981
Filed:
Apr. 21, 1980
Applicant:
Inventors:
Stephen W Thrower, Bethel Park, PA (US);
George H Criss, Bethel Park, PA (US);
Thomas R Kleeb, Pittsburgh, PA (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501107 ; 501127 ; 501131 ;
Abstract
A vibratable plastic refractory composition which is based upon calcined kaolin and a non-basic calcined refractory aggregate, in which the -325 mesh fraction of the batch is controlled to between about 30 and 45%.