Patents by Inventor Robert C. Richter

Robert C. Richter 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).

  • Limb load monitor
    Patent number: 6174294
    Abstract: A lower limb load monitor for providing feedback to a patient or user when a preselected force load is met or exceeded on a patient's or user's foot. The device includes one or more thin film force sensing elements positioned beneath the user's foot and connected with control means for providing a signal when a predetermined threshold force is met.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: January 16, 2001
    Assignee: Orbital Technologies, Inc.
    Inventors: Thomas M. Crabb, Robert C. Richter, Anthony J. Kelhcut
  • Reflected light rotation sensor
    Patent number: 5983720
    Abstract: A rotation sensor utilizing light reflection and/or refraction techniques including a light source, a light reflecting surface and a reflected light receiving member in which the elements are positioned so that the intensity of light reflected by the reflecting surface and received by the receiving member is unique for each rotational position being measured. The invention also relates to a method utilizing the above sensor.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: November 16, 1999
    Assignee: Orbital Technologies Corporation
    Inventors: Thomas M. Crabb, Robert C. Richter
  • Rotation sensor
    Patent number: 5815269
    Abstract: A rotation sensor for measuring relative rotation or angular orientation between first and second members utilizing polarized light techniques. The present invention also relates to a method for measuring angular orientation using light polarization techniques.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: September 29, 1998
    Inventors: Thomas M. Crabb, Robert C. Richter, William L. Phillips