Locking differential including resilient disc means

Details Locking differential including resilient disc means Locking differential including resilient disc means

2011-01-25

2011-01-25

Lewis, Tisha D (Department: 3655)

Planetary gear transmission systems or components

Differential planetary gearing

Including means to selectively apply rotational power to...

C475S231000, C475S249000

Reexamination Certificate

active

07874954

ABSTRACT:
A locking differential includes a pair of clutch members that are biased together by a resilient disc and friction pack assembly toward a cross pin that extends diametrically across the central chamber of a cylindrical housing driven by the drive shaft of a vehicle, thereby to drive a pair of side gears and the output shafts splined thereto. The cross-pin extends within operating cam grooves contained in the adjacent faces of the clutch members, such that when the rotational velocity of one output shaft exceeds that of the other by a predetermined amount, the friction pack assembly of the faster shaft is operated to a non-compressed condition, thereby to disengage the over-running output shaft from the drive shaft. The resilient disc devices may be annular wave springs, or resilient disc springs.

REFERENCES:
patent: 4498355 (1985-02-01), Schou
patent: 4640143 (1987-02-01), Schou
patent: 4845831 (1989-07-01), Schou
patent: 5413015 (1995-05-01), Zentmyer
patent: 5715733 (1998-02-01), Dissett
patent: 5727430 (1998-03-01), Valente
patent: 5836220 (1998-11-01), Valente
patent: 6688194 (2004-02-01), Dissett
patent: 2003/0147723 (2003-08-01), Schwab

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