Patents by Inventor Glen D. Tapper

Glen D. Tapper 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).

  • Multi-function hydraulic control handle
    Patent number: 5112184
    Abstract: A control system is provided. The control system allows for control of four independent movement functions with an overriding safety switch or deadman switch. The four different movement functions can be operated simultaneously, or independently, as desired. In preferred embodiments the movement functions of the control handle are coordinated to movement of the controlled device.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: May 12, 1992
    Assignee: Reach All
    Inventors: Glen D. Tapper, Timothy J. Raymond, Ernest E. Enlund