Patents by Inventor Michael R. Sandy

Michael R. Sandy 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).

  • Laser-welded bearing and method of making same
    Patent number: 5676469
    Abstract: A bimetal sleeve bearing has an axial seam that is laser welded so that both the soft inner layer and hard outer layer of the sleeve are continuous and homogeneous without internal or surface cracks. The seam edges are cut and abutted so as to form an axial groove in the inner surface of the outer layer. During the laser welding operation, fused material from the inner layer flows into the groove to form a crack-free lining for the bearing.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: October 14, 1997
    Assignee: Federal-Mogul Corporation
    Inventors: Michael R. Sandy, Tarry D. Stahl