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:
Sep. 10, 1991
Filed:
Mar. 27, 1990
R Bruce Dennert, Waukesha, WI (US);
Harley-Davidson, Inc., Milwaukee, WI (US);
Abstract
Method and apparatus for damping the effects of cyclic engine speed variations on the splines of a driving hub and the mating splines of a shaft driven by the hub. A caliper-like retaining mechanism includes a retaining nut threadedly engaging the distal end of the shaft, which distal end is journaled through a splined bore of the driving hub. A shoulder washer is disposed about the shaft proximate the hub shoulder, which shoulder washer is secured to the shaft by the retaining nut. A disc spring urges the shoulder washer into frictional engagement with the hub, which disc spring is retained in a circular groove within the hub. A predetermined preload is exerted by the disc spring on the shoulder washer, which preload is sufficient to overcome the forces which tend to induce rattle between the splines of the shaft and the corresponding splines of the hub.