Patents by Inventor John W. Bordages

John W. Bordages 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).

  • Internal gripping pipe wrench
    Patent number: 4499799
    Abstract: A tool for insertion into a pipe in order to apply torque by contact with the inside surface of the pipe. It has an axially located socket in a central rotor with a concentric ring around the rotor. The ring has a plurality of toothed gripping arms pivoted on the ring and connected to the rotor by links pivoted at both ends so that relative rotation of the rotor extends the gripping arms for contacting the inside of the pipe by the teeth.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: February 19, 1985
    Assignee: Texaco Inc.
    Inventor: John W. Bordages