US Patent 7481855 Carbon foam abrasives

Patent 7481855 was granted and assigned to TOUCHSTONE RESEARCH LABORATORY LTD (INC) on January, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

TOUCHSTONE RESEARCH LABORATORY LTD (INC)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74818550

Patent Inventor Names

Darren Kenneth Rogers0

Janusz Wladyslaw Plucinski0

Date of Patent

January 27, 2009

Patent Application Number

108108440

Date Filed

March 29, 2004

Patent Citations Received

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US Patent 11999029 Abrasive articles and methods for forming same

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US Patent 12064852 Abrasive articles and methods for forming same

Patent Primary Examiner

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Cephia D. Toomer

Patent abstract

The incorporation or blending of from about 1 to about 10% by volume of a “carbide precursor” powder, preferably on the order of <100 microns in size, with a coal particulate starting material and the subsequent production of carbon foam in accordance with the method described herein, results in a carbon foam that exhibits significantly enhanced abrasive characteristics typical of those required in the polishing of, for example glass, in the manufacture of cathode ray tubes.