Title: Four way pawl clutch

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Kopich, Leonard F. (Madison Heights, MI, US)

Application Number: 017387
Filing Date: 1979-03-05
Publication_date: 1980-09-16
Assignee: General Motors Corporation (Detroit, MI)
Primary Class(es): 192/43.1 188/82.7, 192/40
Other Classes:
US Patent Ref:

1469700	Oct, 1923	Sheldon	192/43.
1470074	Oct, 1923	Gomez	192/43.
1609698	Dec, 1926	Constantinesco	192/43.
1664320	Mar, 1928	Pitter	192/43.
1915643	Jun, 1933	Barnes	192/43.
2134420	Oct, 1938	Smith.
2181244	Nov, 1939	McGrew.
2404092	Jul, 1946	Reynolds.
2720296	Oct, 1955	Briglia.
2773574	Dec, 1956	Able.
3102618	Sep, 1963	Lund.
3216544	Nov, 1965	Ryan.
3599767	Aug, 1971	Sederquist.

Other Refs: 528202139343

Jun, 1931	DE2
Jun, 1930	CH

Primary Examiner: Staab, Lawrence J.
Assistant Examiner:
Attorney: Fodale; F. J.