Power steering assembly
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United States of America Patent
Stats
-
Jan 13, 2009
Grant Date -
Sep 4, 2008
app pub date -
Mar 2, 2007
filing date -
Mar 2, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides for a power steering assembly and method of actuation for assisting a driver in moving the steerable wheels of a vehicle. The power steering assembly includes a housing that defines a chamber. A steering rod is disposed in the chamber and is longitudinally moveable within the chamber. A shoulder is fixed to the steering rod and has opposing sides. A shaft is supported by the housing and engages the steering rod translating the rotational movement of the shaft into a longitudinal movement of the steering rod. A first actuator and second actuator are disposed in the chamber on opposing sides of the shoulder. The first and second actuators each have an excitable material that is controlled in a series of actuations to advance the actuators in a linear movement for pushing against the shoulder to move the steering rod longitudinally within the chamber.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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