Torque sensor for detecting a shaft torque

Details Torque sensor for detecting a shaft torque Torque sensor for detecting a shaft torque

2007-07-24

2007-07-24

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862000, C073S862080, C073S862328, C073S862329, C073S862331, C073S862333, C073S862335, C073S862336

Reexamination Certificate

active

11175258

ABSTRACT:
A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in a magnetic field generated by the multipolar magnet. The magnetic yokes are opposed to each other via an air gap in an axial direction. A magnetic sensor is provided for detecting the density of magnetic flux generated in the air gap. A non-magnetic spacer is disposed between the magnetic yokes as a means for positioning the magnetic yokes. The spacer and the magnetic yokes are integrated by resin molding.

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Office Action and its translation from German Patent Office dated May 23, 2005.
Decision of Refusal from Japanese Patent Office issued on Sep. 5, 2006 for the corresponding Japanese patent application No. 2002-290307 (a copy and English translation thereof).
Notification of Reasons for Rejection from Japanese Patent Office issued on May 23, 2006 for the corresponding Japanese patent application No. 2002-290307 (a copy and English translation thereof).

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