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. 20, 2002
Filed:
Mar. 17, 2000
Applicant:
Inventors:
David M. Avant, Jr., Sandersville, GA (US);
Donald G. Turner, Washington, GA (US);
Assignee:
Georgia Industrial Minerals, Inc., Sandersville, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 ; C01B 3/342 ;
U.S. Cl.
CPC ...
B32B 5/16 ; C01B 3/342 ;
Abstract
Sedimentary mica flakes are produced having a bulk density of between about five and one-half pounds per cubic feet and eight pounds per cubic feet (5.5-11 lbs/ft ), a high aspect ratio, and a G.E. brightness between about seventy-five and ninety (75-90). Operations include applying shear forces to delaminate the mica into flakes. Shear forces are applied by rotating a plurality of arcuate blades within a confined chamber containing the mica, such that the mica is forced between an outer portion of each blade and said chamber. The resulting delaminated mica flakes may be dried and classified.