Patents by Inventor Gerry Petty

Gerry Petty 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).

  • Hydraulic Drive Circuit
    Publication number: 20140196449
    Abstract: A hydraulic drive circuit using a variable displacement bi-directional pump with two (2) two speed motors enabling drive torque variation as required compensating for a changing load distribution on a machine encountering varying weight distributions at the two drives resulting from operating on slopes.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Inventor: Gerry Petty