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. 15, 2000
Filed:
Jan. 22, 1999
Applicant:
Inventor:
Roland J Gerken, Andover, MN (US);
Assignee:
Excelsior-Henderson Motorcycle Manufacturing Company, Belle Plaine, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 1921 / ;
Abstract
A hydraulic motorcycle clutch system includes a master cylinder, and a slave cylinder. The slave cylinder operates as a clutch release mechanism to disengage a clutch in response to the master cylinder. The clutch release provides a pulling force on the clutch to relieve a compression force applied to clutch disks of the clutch. One embodiment of the slave cylinder includes dual concentric seals and a stepped piston. The stepped piston design provides for reliable control of the travel distance of the clutch release. The clutch release is also self adjusting over a wide variation in clutch disk thicknesses.