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:
May. 25, 1993
Filed:
Dec. 27, 1991
Richard A Flotow, Butler, IN (US);
Dana Corporation, Toledo, OH (US);
Abstract
A clutch has an adjusting ring defining an operative position for a spring which is movable to force a drive disc into a driven disc. The adjusting ring is threadably adjustable within the interior of a flywheel housing to allow adjustment of the position of the adjusting ring spring to accommodate wear on the discs. The flywheel housing has a plurality of spaced gaps where there are no threads. The gaps accommodate debris and ensure that the threads on the adjusting ring and the flywheel housing do not bind, and prevent adjustment. The threads are of the buttress-type, having a cross-sectional shape that is less likely to bind. Finally, the lead of the thread is increased such that there are a relatively small number of thread turns per unit length. The resulting adjusting ring remains easily adjustable, and less likely to bind than prior art structures.