Patents by Inventor Thomas E. Congdon

Thomas E. Congdon 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).

  • Patent number: 5036573
    Abstract: A Holland cylinder removal tool is set forth for use in removing a fifth wheel cylinder from an associated fifth wheel mount. The tool includes a plurality of spaced parallel and aligned arms, each extending from a respective fluid cylinder end and a piston of the fluid cylinder wherein the arms are extensible and retractable with respect to one another and are each formed with a "U" shaped jaw at a terminal end of each arm for securement adjacent a spring assembly associated with a pneumatic cylinder of the Holland fifth wheel mount to compress the springs and enable removal of the associated pins connecting the air cylinder to the cores aligned with the air cylinder within the springs.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: August 6, 1991
    Inventor: Thomas E. Congdon