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. 01, 1981
Filed:
Dec. 26, 1979
Applicant:
Inventor:
J G MacDonald, Detroit, MI (US);
Assignee:
Warner Electric Brake & Clutch Company, South Beloit, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ; F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 35 ; 192 483 ; 192 / ;
Abstract
Torque is transmitted from the input member of a clutch to a primary shoe when the primary shoe is pressed into frictional engagement with the input member by compression springs. When initially turned by the input member, the primary shoe moves a series of balls angularly along inclined ramps to cause a secondary shoe to shift into frictional engagement with the input member and transmit torque to the output member of the clutch. A brake acts through the shoes to retard the output member when the clutch is disengaged.