Patents by Inventor Marcus C. Langston

Marcus C. Langston 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).

  • Electro-optic force and pressure transducer and sensor
    Patent number: 4814562
    Abstract: A pressure sensor includes at least one light conducting opening extending generally parallel to a pressure receiving face of a deformable body and a light emitting and a light receiving device at opposite ends of the light transmitting opening. A cross sectional area of the light transmitting opening, and correspondingly the light transmitting capability of the opening, vary in response to changing pressures applied to the pressure receiving face, which is determined by the light receiver. A measuring circuit for the light receiver is also provided.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: March 21, 1989
    Assignee: University of Arkansas
    Inventor: Marcus C. Langston