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:
Mar. 24, 2009
Filed:
Jul. 29, 2005
Applicant:
Warren R. Beck, Woodbury, MN (US);
Inventor:
Warren R. Beck, Woodbury, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B 9/00 (2006.01); C03B 19/10 (2006.01); C03B 23/00 (2006.01); C03B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a low cost method of converting solid glass or ceramic microparticles into hollow microspheres by feeding them, along with pulverized coal, into coal-powered furnaces. Coal-powered furnaces generally produce microsized fused particles of the ash in the coal—called fly ash; and some of the fly ash particles may be hollow. By the present invention the yield of hollow microparticles is greatly increased by co-feeding, along with the pulverized coal, very small amounts of microparticles of inorganic materials known to have the ability to form hollow microspheres upon fusion.