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. 02, 1990
Filed:
Dec. 24, 1986
Paul Maucher, Sasbach, DE;
Rudolf Honemann, Ottersweier, DE;
Luk Lamellen und Kupplungsbau GmbH, Buhl, DE;
Abstract
A friction clutch plate wherein friction linings which receive torque from the crankshaft of an internal combustion are mounted on one disc of a twin-disc input element forming part of a first damper of torsional vibrations. The output element of the first damper is a flange between the two discs and such flange can turn relative to the discs against the opposition of a set of relatively weak coil springs. The flange is made of a synthetic material. One of the discs forms part of the input element of a second damper whose output element is a flange mounted on the hub for the input shaft of a change-speed transmission with a certain amount of angular play. The flange of the first damper has internal teeth mating without play with the external teeth of the hub. The first damper operates alone during a first stage of angular movement of the one disc relative to the hub, and the two dampers cooperate during the next stage of such angular movement. The coil springs can be confined in pockets of the input and/or output element, and such element or elements can be made of a synthetic material and can act as friction rings.