Motor vehicles – Steering gear – With fluid power assist
Reexamination Certificate
2011-04-26
2011-04-26
Silbermann, Joanne (Department: 3611)
Motor vehicles
Steering gear
With fluid power assist
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.
REFERENCES:
patent: 3455210 (1969-07-01), Allen
patent: 3566749 (1971-03-01), Allen et al.
patent: 4077484 (1978-03-01), Dezelan
patent: RE31125 (1983-01-01), Dwyer
patent: 4555978 (1985-12-01), Burandt et al.
patent: 4665939 (1987-05-01), Kreth et al.
patent: 5020618 (1991-06-01), Nagao
patent: 5267628 (1993-12-01), Tomiyoshi et al.
patent: 5303636 (1994-04-01), Stephenson et al.
patent: 5806561 (1998-09-01), Pedersen et al.
patent: 5918558 (1999-07-01), Susag
patent: 5992458 (1999-11-01), Novacek et al.
patent: 6539710 (2003-04-01), Draper
patent: 7142956 (2006-11-01), Heiniger et al.
patent: 7185730 (2007-03-01), Schmidt et al.
patent: 7610989 (2009-11-01), Vigholm et al.
patent: 2005/0205337 (2005-09-01), Porskrog et al.
patent: 2006/0248883 (2006-11-01), Gelhoff
patent: 1 020 343 (2000-07-01), None
patent: 1 295 778 (2003-03-01), None
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.
Eaton Corporation
Merchant & Gould P.C.
Silbermann Joanne
Stabley Michael R
LandOfFree
Isolation valve for a load-reaction steering system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Isolation valve for a load-reaction steering system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isolation valve for a load-reaction steering system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2650463