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:
Dec. 18, 1984
Filed:
Jan. 28, 1982
Applicant:
Inventor:
Pierre Loizeau, Ville d'Avray, FR;
Assignee:
Valeo, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
1921061 ; 464 82 ;
Abstract
A torsional damper suitable for use in a friction clutch plate for an automotive vehicle comprises at least two coaxial parts mounted to rotate relative to one another, within a defined range of relative angular movement. Friction means operative between the rotating parts comprise two friction pads constrained to rotate with one part, in rubbing engagement with an axial surface constrained to rotate with the other part. This surface is non-circular in transverse cross-section. Its radius of curvature varies between at least one minimum and at least one maximum. Thus it may be generally oval in shape, for example.