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:
Jun. 10, 2008
Filed:
Jun. 23, 2004
Applicants:
Volker Ploetz, Herzogenaurach, DE;
Wolfgang Fugel, Nürnberg, DE;
Alexander Reimchen, Herzogenaurach, DE;
Horst Engelhardt, Gerhardshofen, DE;
Inventors:
Volker Ploetz, Herzogenaurach, DE;
Wolfgang Fugel, Nürnberg, DE;
Alexander Reimchen, Herzogenaurach, DE;
Horst Engelhardt, Gerhardshofen, DE;
Assignee:
Schaeffler KG, Herzogenaurach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thrust washer () for planet gears () of a planetary gearbox is provided that is made form a tempered, cold rolled strip having a flatness less than or equal to 0.03 mm, and a hardness ranging from 370 to 580 HV. The thrust washer () can be produced in a particularly cost effective manner by making it from an appropriate initial stock having the desired final properties.