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. 06, 1999
Filed:
May. 08, 1997
Applicant:
Inventor:
Thomas Ellingson, Worcester, MA (US);
Assignee:
Norton Company, Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51309 ; 451 12 ;
Abstract
Light weight metal bonded abrasive tools consisting of an annular rim of metal bonded superabrasive joined to a central core or hub made from a dissimilar metal, such as aluminum powder, are manufactured in a single sintering step that yields a near net shape abrasive tool. The abrasive tools are useful for the grinding of optical components made of plastic or glass.