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:
Aug. 30, 1994
Filed:
Jul. 30, 1993
Charles B Rau, Costa Mesa, CA (US);
Douglas D Fisher, Torrance, CA (US);
Other;
Abstract
A device is set forth to suppress vibrations relating to intermittent or uneven piston firing impulse torque in an internal combustion engine. The device is particularly adapted as an after market device for motorcycle engines and includes first and second plates secured to the engine crankshaft and to the engine's drive sprocket. Inertial rings are biased to, in cooperation with friction discs, frictionally couple the plates and rings for mutual rotation below pre-selected shaft torques. Firing impulses resulting in torques exceeding the predetermined value will cause the plates to rotate, restrained by friction, relative to inertial rings to suppress torque related vibration.