Patents by Inventor Clyde W. Richardson

Clyde W. Richardson 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 forming a valve seat by inertia welding
    Patent number: 4079491
    Abstract: A valve seat may be formed deep within a valve body by attaching a wear-resistant material to a base material, such as by welding. Similarly, a drive member may be attached to either of the wear-resistant material or the base material. The thus-assembled structure can be rotated at high speeds adjacent a welding seat located deep within the valve body to create a friction or inertia weldment between the seat and base material. Subsequently, the drive material, weldment flash, etc., can be machined away and the wear-resistant material can be machined, if necessary, to create a valve seat of predetermined configuration.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: March 21, 1978
    Assignee: Sargent Industries
    Inventor: Clyde W. Richardson