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, 1991
Filed:
Jul. 20, 1990
Applicant:
Inventor:
Marc A Yesnik, Chicago, IL (US);
Assignee:
Borg-Warner Automotive, Inc., Sterling Heights, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 7014 ; 2911 / ; 20419216 ;
Abstract
A clutch separator plate (24) utilized in a clutch or brake pack (10) for an automotive transmission for vehicles, with the plates being internally or externally splined to be operatively connected to the rotatable and/or stationary members (12, 14) in a torsional coupling, wherein the separator plate surfaces (44) are treated by a suitable surface treatment, such as lapping, and the sputter coated with titanium nitride or a similar material (46) to provide a surface texture which enhances the frictional characteristics of the plate but does not substantially increase the wear of the lining of interleaved clutch plates (16).