Patents by Inventor Mason C. Winfield, Jr.

Mason C. Winfield, 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).

  • Patent number: 3953037
    Abstract: An extensible polished rod protector having alternating inner and outer diameter portions defining adjacent convolutions, and annular retainer members in the form of radial, reinforcing support plates within the outer diameter portions for preventing radially inward collapsing thereof upon extension of the protector and also preventing contact between the inner diameter portions and the polished rod. The polished rod passes through a liquid receiving container having means for trapping oil accummulated therein while permitting the egress of water therefrom. A floating rod wiper assembly in the container maintains wiping engagement with the reciprocating rod while accommodating lateral shifting and wobbling thereof.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: April 27, 1976
    Assignee: Rodgard Manufacturing Co., Inc.
    Inventor: Mason C. Winfield, Jr.