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:
Sep. 29, 1987
Filed:
Nov. 07, 1985
Applicant:
Inventors:
Armin Olschewski, Schweinfurt, DE;
Manfred Brandenstein, Eussenheim, DE;
Hermann Hetterich, Heidenfeld, DE;
Heinrich Kunkel, Schweinfurt, DE;
Assignee:
SKF GmbH, Schweinfurt, Schweinfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
2914 / ; 29DI / ; 72379 ;
Abstract
A method for making hardened essentially disk-shaped machine parts particularly rotor disks for axial roller bearings consisting of the steps of forming the disk to the desired shape in the soft state, densifying at least one annular ring-shaped section of the disk by rolling or pressing and thereafter hardening the entire disk.