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. 11, 2020
Filed:
Feb. 28, 2018
Applicant:
Covia Holdings Corporation, Independence, OH (US);
Inventors:
Jeffery Hicks, Asheville, NC (US);
Claud E. Westbrook, Conroe, TX (US);
Assignee:
Covia Holdings Corporation, Independence, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/30 (2006.01); C03C 1/02 (2006.01); C09K 8/80 (2006.01); B05D 1/12 (2006.01);
U.S. Cl.
CPC ...
C09C 1/3063 (2013.01); B05D 1/12 (2013.01); C03C 1/02 (2013.01); C09K 8/805 (2013.01); C01P 2004/60 (2013.01); C01P 2004/61 (2013.01); C01P 2006/22 (2013.01);
Abstract
A long term dust free mass of natural silica particles is produced by covering 10-60 percent of the total surface area of the particles with a thin film of white mineral oil with a low viscosity of less than 200 Saybolt SUS at 100° F. and preferably in the range of 60-100 Saybolt SUS at 100° F.