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:
Feb. 21, 1989
Filed:
Jan. 30, 1987
Applicant:
Inventors:
Charles Adams, Jr, Cartersville, GA (US);
Jerry A Cook, Cartersville, GA (US);
Assignee:
Chemical Products Corporation, Cartersville, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
423430 ; 423636 ; 501133 ; 106463 ; 2329 / ;
Abstract
A strontium or barium carbonate product that is better suited for use as a glass ingredient is obtained by sintering the powdered carbonate in a kiln lined with fused amorphous silica. The carbonate picks up fewer harmful contaminants from the amorphous silica lining than it does from, say, a refractory silica-alumina brick lining or a kiln having a metallic inner surface.