Motor vehicles – Steering gear – With fluid power assist
Reexamination Certificate
2005-11-07
2008-09-23
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering gear
With fluid power assist
C180S417000, C180S421000
Reexamination Certificate
active
07426977
ABSTRACT:
A first vehicle power steering system includes a twistable steering torsion bar, a magnet, a Hall sensor, and a valve. The steering torsion bar has a first end fixedly connected to a vehicle steering wheel. The magnet is movable in a first and an opposite second longitudinal direction with respect to the steering torsion bar and is constrained to move in the first longitudinal direction when the steering wheel is turned to the right by a driver and is constrained to move in the second longitudinal direction when the steering wheel is turned to the left by the driver. The Hall sensor has an output and is positioned proximate the magnet. The valve is operatively connected to the output. A second vehicle power steering system includes a twistable steering torsion bar, a ring-magnet support cylinder, a ring-magnet assembly, a ball-and-ramp assembly, a spring, a Hall sensor, and a valve.
REFERENCES:
patent: 4409789 (1983-10-01), Hansen et al.
patent: 4557342 (1985-12-01), Drutchas
patent: 4651841 (1987-03-01), Adams
patent: 4715464 (1987-12-01), Nakamura et al.
patent: 4790401 (1988-12-01), Sonoda
patent: 4875540 (1989-10-01), Oshita et al.
patent: 5553683 (1996-09-01), Wenzel et al.
patent: 5713429 (1998-02-01), Doolittle
patent: 6170599 (2001-01-01), Kikuti et al.
patent: 6250416 (2001-06-01), Pluschke et al.
patent: 6276487 (2001-08-01), Bieber et al.
patent: 6298941 (2001-10-01), Spadafora
patent: 6539710 (2003-04-01), Draper
patent: 2002/0079156 (2002-06-01), Nazars
patent: 2004/0089497 (2004-05-01), Kang
Edson Joey D.
Engel Klaus G.
Foster Randy C.
Meckstroth Richard J.
Fluid Routing Solutions, Inc.
Morris Lesley D.
Tassone Joseph V.
Thompson Hine LLP
Williams Maurice
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