Patents by Inventor Peter P. Adomis, Jr.

Peter P. Adomis, Jr. 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).

  • Filled piston with central oil tube
    Patent number: 4519300
    Abstract: A filled piston (10) has a tube (19) extending axially through the core (13) of filler material. The tube (19) provides the passage (23) through which hydraulic fluid passes to lubricate the bearing surfaces of components associated with the piston (10). This eliminates the problem of the hydraulic fluid eroding the filler material and thus the need for visual inspection of the passage through the piston.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: May 28, 1985
    Assignee: Caterpillar Tractor Co.
    Inventors: Peter P. Adomis, Jr., Millard J. Martin