Patents by Inventor Ernest G. Evans

Ernest G. Evans 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).

  • Method and apparatus for cold forming stabilizer blade means from elongated members
    Patent number: 4363233
    Abstract: An apparatus for cold forming stabilizer blades from elongated members by holding an elongated member while being bent or twisted to form a stabilizer blade. A mandrel is provided for receiving first and second sleeves so that a force applied by a toggle arrangement causes the first and second sleeves to rotate in opposite directions to bend the elongated member to form a stabilizer blade.
    Type: Grant
    Filed: December 23, 1980
    Date of Patent: December 14, 1982
    Inventor: Ernest G. Evans
  • Stabilizer
    Patent number: 3933395
    Abstract: A stabilizer for a tubular string includes a tubular body with a sleeve split transversely which forms two portions that fit on the body with means for securing the split sleeve on the body.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: January 20, 1976
    Assignee: Reamco, Inc.
    Inventor: Ernest G. Evans