Device and method for locking together the shafts of an...

Details Device and method for locking together the shafts of an... Device and method for locking together the shafts of an...

2005-12-07

2010-12-14

Wilson, Lee D (Department: 3727)

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

C029S255000, C029S278000

Reexamination Certificate

active

07849574

ABSTRACT:
A device and method used for locking three shafts of an automatic transmission during tightening of a shaft-retaining nut. The device has a housing with a sidewall defining a fluid chamber and a tip at the first end of the housing. A fluid passage extends through the tip from the fluid chamber at one end of the tip and a clutch apply port at a second, opposite end of the tip. A tube, such as a coupling, is mounted to the housing sidewall through which a fluid passage extends in fluid communication with the fluid chamber. A compressed gas conduit is mounted to the coupling and is in fluid communication with the coupling fluid passage. As a park mechanism on the transmission is applied, a predetermined amount of air pressure from the compressed gas conduit is applied through the coupling, housing and tip to the clutch apply port, thereby locking the three shafts of the automatic transmission together. The shaft retaining nuts are tightened and the device can be released, thereby releasing the shaft.

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patent: 7669306 (2010-03-01), Palka
patent: 2007/0125194 (2007-06-01), Dickinson

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