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:
Nov. 01, 1983
Filed:
Feb. 21, 1980
Pierre Loizeau, Ville d'Avray, FR;
Societe Anonyme Francaise du Ferodo, Paris, FR;
Abstract
This torsion damping device comprises two coaxial parts, namely a hub (10) and a hub disc (11), fitted mutually rotatably within the limits of a definite angular play and counter to springs (16). The torsion damping device also comprises at least one locking element (22, 40, 55, 66, 74) which is sensitive to centrifugal force and which is reversibly movable between a position for which, inoperative, the locking element permits freedom of action to the springs (16), and a position for which, producing an abutment of the hub disc (11) against the hub (10), the locking element renders the springs (16) inoperative. Application of the torsion damping device is especially to clutch friction plates for motor vehicles.