Patents by Inventor Richard G. Sawyer

Richard G. Sawyer 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).

  • Portable broadcast band information transmitting system
    Patent number: 4541119
    Abstract: A portable advertising sign is positioned in proximity to a street and includes a message board. A low power transmitter is physically secured to the sign and generates a modulated RF output signal at a predetermined frequency within the broadcast band. An antenna colocated with the sign is coupled to the transmitter and radiates the transmitter output signal. A cassette tape player is positioned in a secure area physically spaced apart from the sign by a substantial distance and includes a colocated power supply for supplying a DC voltage. A cable conveys the audio output signal from the tape player and the DC voltage from the power supply to the transmitter. The sign message board displays the operating frequency of the transmitter to vehicles passing by the sign.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: September 10, 1985
    Inventors: John R. Cooper, Richard G. Sawyer
  • Display sign support having detachable component parts and slideable ground anchors
    Patent number: D285220
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: August 19, 1986
    Inventors: John R. Cooper, Richard G. Sawyer