Patents by Inventor Jon L. Dorminy

Jon L. Dorminy 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).

  • Diaphragm pump
    Patent number: 4621990
    Abstract: A diaphragm pump with mechanical return stroke assist. The pump includes a flexible diaphragm within a pump housing which is driven by a pressurized fluid during a power stroke and returned to an initial position during a return stroke. The mechanical assist includes a spring and metal rod attached to the diaphragm. During the power stroke the spring stretches and stores potential energy that is released as the tensioned spring and tension rod pull the diaphragm back to an initial position during the return stroke.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: November 11, 1986
    Assignee: The Gorman-Rupp Company
    Inventors: Carl Forsythe, Jon L. Dorminy, Joseph W. Raymon