Patents by Inventor George W. Usher

George W. Usher 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).

  • Self-powered vehicle detection system
    Patent number: 4302746
    Abstract: An improved self-powered vehicle detector (SPVD) uses a two-axis magnetomr to sense a vehicle's magnetic signature and then telemeter vehicle presence information to a roadside receiver. The SPVD system includes digital nulling loops to cancel D.C. offset changes in the magnetometic output, a multi-tone code transmitter to transmit vehicle presence and SPVD condition signal, and an omnidirectional microstrip antenna to simplify installation and maintenance of the SPVD.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: November 24, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John F. Scarzello, Daniel S. Lenko, Albert D. Krall, Wayne R. Grine, Robert E. Brown, George W. Usher, Milton K. Mills, Albert M. Syeles