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:
Jul. 09, 1996
Filed:
Sep. 09, 1994
Applicant:
Inventor:
Hans Vondracek, Breckerfeld, DE;
Assignee:
Hoesch Federn GmbH, Hagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ; C21D / ;
U.S. Cl.
CPC ...
148580 ; 148908 ;
Abstract
A method of optimizing the distribution of inherent stress in springs intended for vehicle suspensions, especially in the rod cross-section of high-strength helical compression springs, whereby the springs are set and bombarded with balls. The springs are forwarded for the operations setting and bombardment at a gradient of strength prescribed for the particular rod cross-section.