ELECTRIC ASSIST STEERING SYSTEM
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United States of America Patent
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Issued Date -
Jun 12, 2014
app pub date -
Dec 11, 2012
filing date -
Dec 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electric assist steering system comprising a first lead screw connected to a steering shaft, a first lead screw nut engaged with the first lead screw, the first lead screw moveable along an axis of the first lead screw, a second lead screw, a second lead screw nut engaged with the second lead screw, the second lead screw connected to the first lead screw nut, an electric motor engaged with the second lead screw nut whereby the second lead screw nut is rotatable by the electric motor, and the first lead screw nut comprises a gear for engaging a steering system pinion.
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