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. 20, 2000
Filed:
Mar. 04, 1999
Applicant:
Inventor:
Paul J Valente, Berkley, MI (US);
Assignee:
Tractech Inc., Warren, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74650 ; 192 698 ;
Abstract
A differential mechanism of the holdout ring type is characterized by improved annular clutch plates with trapezoidally configured cam teeth for mating with the center cam teeth of the center cam. Each clutch plate has inner cam and outer clutch teeth extending from a planar surface thereof with a gap between the inner and outer teeth receiving a holdout ring. The inner cam teeth have a base wider than the top portion thereof so that there is surface to surface contact with the center cam teeth. This reduces torque in the clutch cam teeth and provides smoother operation and a longer service life to the differential.