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. 10, 1998
Filed:
Apr. 05, 1995
Applicant:
Inventors:
Ajay K Garg, Northborough, MA (US);
Arup K Khaund, Northborough, MA (US);
Lawrence E Orne, Leominster, MA (US);
Mark R Young, Boylston, MA (US);
Assignee:
Saint Gobain/Norton Industrial Ceramics Corporation, Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; B02C / ;
U.S. Cl.
CPC ...
241-1 ; 241 23 ; 241 27 ;
Abstract
Sol-gel alumina that is dried but unfired can be explosively comminuted by feeding the dried gel into a furnace held at temperatures above those at which vaporizable materials are eliminated from the particles of gel. At suitably elevated temperatures the firing is sufficient to form fully densified alpha alumina particles of a size suitable for direct use as abrasive grits.