Patents by Inventor William R. Gerhard

William R. Gerhard 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).

  • Integrated gear motor and method of assembly
    Patent number: 5737968
    Abstract: A gear motor assembly having a three-part molded housing consisting of a gear case having one open side for housing a reduction gear train, a rotatably driven output shaft and coaxial cam; a circuit board cover having one open side for housing a printed circuit board and motor control components including a cam operated switch for periodically deenergizing an electric DC motor also mounted on the circuit board, and a gear case cover interposed between the gear case and circuit board, which is welded to the gear case and circuit board cover to effect a sealed protective housing.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: April 14, 1998
    Inventors: Donald H. Hardey, William R. Gerhard