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:
Apr. 10, 2001
Filed:
Sep. 22, 1999
Applicant:
Inventor:
David B. Hanson, Afton, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/00 ; B24D 3/02 ; B24D 3/12 ; B24D 1/700 ;
U.S. Cl.
CPC ...
B24D 3/00 ; B24D 3/02 ; B24D 3/12 ; B24D 1/700 ;
Abstract
Corrugated abrasive discs such as grinding wheels are treated by applying a water-resistant coating to the interiors of the corrugations before the corrugations are plugged. Discs having water-sensitive matrices such as magnesium oxychloride cement are thus protected against water or water vapor seepage from aqueous-based plug fill material.