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:
Jan. 09, 1990
Filed:
Apr. 13, 1988
Applicant:
Inventors:
Jacky Naudin, Ermont, FR;
Jacques Alas, Eaubonne, FR;
Assignee:
Valeo, Paris, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
74574 ; 464 68 ; 192 7017 ; 1921062 ;
Abstract
A torsion damping device comprises at least two coaxial parts mounted to move circumferentially relative to one another against the action of elastic units. Inside a coil spring of one elastic unit a stiffer elastic means is housed, comprising in the central zone of the said unit a block of relatively rigid plastic material and two elastic pads each disposed at one of the circumferential ends of the said unit with a predetermined clearance relative to the block.