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:
Nov. 29, 1977
Filed:
Nov. 17, 1975
Applicant:
Inventors:
William J Chmura, Southington, CT (US);
Ronald S Slusarski, Berlin, CT (US);
Charles B Burk, Collinsville, CT (US);
Assignee:
Textron Inc., Providence, RI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21K / ; B21H / ;
U.S. Cl.
CPC ...
2914 / ; 29263 ; 29283 ; 294205 ;
Abstract
A method is provided for partially densifying a selected surface portion of a sintered porous powder metal element while applying restraining pressure to other selected portions of said element in order to inhibit growth and cracking of said element during the partial cold deformation thereof. The method is particularly applicable to the production of annular bearing rings.