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:
Aug. 10, 1999
Filed:
Oct. 20, 1997
Applicant:
Inventors:
James G Hnat, Collegeville, PA (US);
Akshay Mathur, Tampa, FL (US);
James C Simpson, Perkiomenville, PA (US);
Assignee:
Vortec Corporation, Collegeville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ;
U.S. Cl.
CPC ...
501-1 ; 501-2 ; 501 57 ; 501 63 ; 501 69 ; 501 70 ; 501155 ; 106D / ; 264D / ; 65 331 ; 651348 ; 588252 ; 588256 ;
Abstract
The present invention relates to a process for forming glass-ceramic tiles. Fly ash containing organic material, metal contaminants, and glass forming materials is oxidized under conditions effective to combust the organic material and partially oxidize the metallic contaminants and the glass forming materials. The oxidized glass forming materials are vitrified to form a glass melt. This glass melt is then formed into tiles containing metallic contaminants.