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. 21, 1987
Filed:
Dec. 03, 1985
Applicant:
Inventors:
Julia G Daniels, Madison, AL (US);
Frank E Ledbetter, III, Huntsville, AL (US);
Johnny M Clemons, Trinity, AL (US);
Benjamin G Penn, Huntsville, AL (US);
William T White, Huntsville, AL (US);
Primary Examiner:
Int. Cl.
CPC ...
B24C / ; B23B / ;
U.S. Cl.
CPC ...
5128 / ; 408 / ;
Abstract
A method for boring well-defined holes in a composite material such as graphite/epoxy. A slurry of silicon carbide powder and water is projected onto a work area of the composite material in which a hole is to be bored with a conventional drill bit. The silicon carbide powder and water slurry allow the drill bit, while experiencing only normal wear, to bore smooth, cylindrical holes in the composite material.