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. 16, 1980
Filed:
Mar. 05, 1979
Leonard F Kopich, Madison Heights, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A four-way pawl clutch has forward and reverse drive pawls pivotally mounted on a cage. The cage carries two indexable phasing rings. One is resiliently coupled to the forward drive pawls by overcenter leaf springs which bias the forward drive pawls toward or away from an engaged position with the clutch drive members depending on the indexed position of the phasing ring. The second phasing ring is resiliently coupled to the reverse drive pawls in a like manner. The two phasing rings may be indexed to provide freewheel, forward drive, reverse drive and lock-up modes of operation. The two phasing rings may be remotely controlled by solenoids or the like. The two phasing rings may also be coupled so that the four-way sprag clutch operates essentially as a two-way dog clutch.