Isolation valve for a load-reaction steering system

Motor vehicles – Steering gear – With fluid power assist

Reexamination Certificate

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Details

C180S421000

Reexamination Certificate

active

07931112

ABSTRACT:
A steering system includes a fluid actuator, a first steering circuit in selective fluid communication with the fluid actuator, and a second steering circuit in selective fluid communication with the fluid actuator and disposed in parallel to the first steering circuit. The second steering circuit includes a load-reaction feature and an isolation valve with the isolation valve being adapted to enable and disable the load-reaction feature.

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European Search Report mailed Jul. 27, 2009.
PTS9-8, Pilot to Shift Valve, Eaton Vickers Screw-In Cartridge Valves; V-VLOV-MC001-E4, Sep. 2007, 2 pages.
File history of U.S. Appl. No. 12/039,599.

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