Motors: expansible chamber type – With motive fluid valve – Electrically operated
Reexamination Certificate
2007-06-12
2007-06-12
Leslie, Michael (Department: 3745)
Motors: expansible chamber type
With motive fluid valve
Electrically operated
C091S461000, C091S361000
Reexamination Certificate
active
11198251
ABSTRACT:
The present invention provides a pressure control system having a control solenoid with plurality of coils disposed therein, and operable to provide a plurality of pressure gain characteristics to a torque-transmitting mechanism. By selectively energizing the individual coils or a combination thereof, multiple pressure gains may be achieved with a minimum of additional system hardware.
REFERENCES:
patent: 5899436 (1999-05-01), Holmes et al.
patent: 5908098 (1999-06-01), Gorman et al.
patent: 6669598 (2003-12-01), Berger et al.
Bai Shushan
Lochocki, Jr. Ronald F.
Moses Robert L.
GM Global Technology Operations Inc.
Leslie Michael
Thompson Dan L.
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