US Patent 7225687 Power steering apparatus and torque sensor

Patent 7225687 was granted and assigned to Hitachi on June, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Hitachi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7225687

Date of Patent

June 5, 2007

Patent Application Number

11072396

Date Filed

March 7, 2005

Patent Primary Examiner

‌

Edward Lefkowitz

Patent abstract

Power steering apparatus includes input and output shafts connected by a torsion bar; and a coil unit disposed around one of the shafts and arranged to sense torque between the input and output shafts. A housing includes an axial bore in which the shafts and coil unit are installed. The housing is further formed with an insertion opening which extends radially into the axial bore and which is sized to allow insertion of the coil unit radially into the axial bore.