Patents by Inventor Robert A. Pickles

Robert A. Pickles 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).

  • Locking mechanism for telescopic tubing
    Patent number: 4324502
    Abstract: A mechanism for use with telescopic tubing to lock an outside and inside tube against longitudinal movement relative to one another. It has an inside stiffener for the inside tube, that is attached to rotate with that tube. And, the stiffener carries an eccentrically mounted element that is wedged into locking contact with the outside tube by rotating the inside tube about its axis, relative to the outside tube.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: April 13, 1982
    Assignee: Texaco, Inc.
    Inventor: Robert A. Pickles