Patents by Inventor Adrian Leslie Trace

Adrian Leslie Trace has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optical displacement sensor and torque sensor employing relatively movable slit patterns
    Patent number: 5841132
    Abstract: An optical displacement sensor is used to measure the rotary displacement between two shafts which rotate together. By connecting the shafts together by means of a torsion bar, the sensor may be used to measure transmitted torque. The sensor comprises first and second coaxial discs mounted on the shafts and having slots formed therein. A light source directs light through the slots onto an array of photodetectors and a data processor determines the displacement or torque from the positions on the array of images of the slot edges.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: November 24, 1998
    Assignee: Lucas Industries public Limited Company
    Inventors: Steven John Horton, Adrian Leslie Trace, David Rees
  • Optical displacement sensor and torque sensor employing relatively movable slit patterns
    Patent number: RE37969
    Abstract: An optical displacement sensor is used to measure the rotary displacement between two shafts which rotate together. By connecting the shafts together by means of a torsion bar, the sensor may be used to measure transmitted torque. The sensor comprises first and second coaxial discs mounted on the shafts and having slots formed therein. A light source directs light through the slots onto an array of photodetectors and a data processor determines the displacement or torque from the positions on the array of images of the slot edges.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: January 28, 2003
    Assignee: TRW Lucas Variety Electric Steering Limited
    Inventors: Steven John Horton, Adrian Leslie Trace, David Rees