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:
Aug. 20, 2002
Filed:
Oct. 16, 2000
Applicant:
Inventors:
Johannes Wozniak, Lippstadt, DE;
Wilfried Spintig, Lippstadt, DE;
Assignee:
Thyssen Krupp AG, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/34 ; C21D 8/00 ;
U.S. Cl.
CPC ...
C21D 9/34 ; C21D 8/00 ;
Abstract
A road wheel for a track laying vehicle is made by initially roll pressing and projection drawing a planar disk of temperable steel into a blank having a cylindrical portion, a planar hub portion and an intermediate portion bridging the hub and peripheral projection. Prior to machining at least of the intermediate portions, the blank is tempered and thereby increased in size. The blank is reshaped following the tempering and prior to machining to the original blank shape and is then machined.