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:
Oct. 01, 1996
Filed:
May. 02, 1995
Applicant:
Inventor:
David A Score, Shirley, IN (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 19 ; 419 38 ; 419 44 ; 419 66 ;
Abstract
A process for pneumatically isostatically compacting a sintered compact to densify the compact wherein the surface of the compact is oxidized to form a gas impervious oxide barrier on said surface before the compact is subjected to the pneumatic isostatic compaction process. Oxidation of the compact surface is preferably accomplished by steaming the compact before or after sintering.