Patents by Inventor Douglas T. Bridge

Douglas T. Bridge 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).

  • Opposed flow seal/bearing assembly
    Patent number: 6695480
    Abstract: A seal and bearing apparatus for a rotating shaft including a pair of sleeves with two spiral grooves (14) on an inclined surface (16).
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 24, 2004
    Assignee: A.W. Chesterton Co.
    Inventors: Thomas W. Ramsay, Douglas T. Bridge