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:
Jul. 10, 2012
Filed:
Sep. 21, 2009
Applicants:
Thomas C. Palamara, Eufaula, AL (US);
Brett Allen Wilson, Lafayette, LA (US);
Inventors:
Thomas C. Palamara, Eufaula, AL (US);
Brett Allen Wilson, Lafayette, LA (US);
Assignee:
Carbo Ceramics Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); C01F 7/02 (2006.01); C09K 8/92 (2006.01);
U.S. Cl.
CPC ...
Abstract
Sintered, substantially round and spherical particles prepared from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. The sintered particles are suitable for use as a propping agent or as a foundry media.