Patents by Inventor John A. Sims

John A. Sims 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 of weld repairing of a section of a metallic cylindrical member
    Patent number: 5085363
    Abstract: A method of repairing a section of a metallic cylindrical member, such as a turbine shaft, having surface defects and a keyway thereon, by machining the surface to a depth less than the depth of the keyway and inserting a half key in the keyway, and machining the combination to provide a continuous surface for welding. A weld material is then deposited over the continuous surface formed to a thickness which provides a diameter greater than the initial diameter of the shaft. The weld material is machined to give a member having the initial diameter and the key member is removed to provide a repaired member having a keyway therein.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: February 4, 1992
    Assignee: Westinghouse Electric Corp.
    Inventor: John A. Sims