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:
Feb. 17, 1976
Filed:
Oct. 04, 1974
Joseph W Powell, Verona Borough, PA (US);
James N Fleck, Upper St. Clair Township, Allegheny County, PA (US);
Crucible Inc., Pittsburgh, PA (US);
Abstract
A method for hot isostatically compacting powder metallurgy charges in sealed metal containers wherein the container may be easily removed from the charge after compacting by providing a separating medium between the container interior and the powder metallurgy charge to prevent bonding during subsequent hot isostatic compacting, and producing during hot isostatic compacting a residual stress in said container; slitting of the container after compacting releases the residual stresses and in the absence of bonding to the compact causes the container to move away from the compact, thereby avoiding typical container-removal operations such as machining and pickling.