Patents by Inventor Charles M. Lawrence

Charles M. Lawrence 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).

  • Orbital welding torch
    Patent number: 4161640
    Abstract: The orbital welding torch described herein has a horse-shoe shaped body arranged to engage partially around the tubes to be butt welded when inserted from one side of the tubes, and a crescent shaped table carrying a welding head which is rotatably carried by the body so that rotation of the table relative the body orbits the welding head around the region of the weld, the open mouth of the table being capable of alignment with the open mouth of the body to enable the body to be inserted from one side of the tube to engage partially around the tubes.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: July 17, 1979
    Assignee: Foster Wheeler Energy Corporation
    Inventors: Robert A. C. Bromwich, William G. Hill, Charles M. Lawrence