Patents by Inventor James D. Gessner

James D. Gessner 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).

  • Variable proportioner
    Patent number: 4572229
    Abstract: An improved variable proportioner is provided which includes a spring biased lost motion connection between the motor piston and the slave pump piston thus providing for accurate adjustability of the metering proportion as well as prevention of stalling of the slave piston against the front cylinder wall. A pivotable connection of the toggle lever spring is also provided to reduce bending of the spring and to enhance its life span.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: February 25, 1986
    Assignees: Thomas D. Mueller, Crown Technology Corporation
    Inventors: Thomas D. Mueller, James D. Gessner