Patents by Inventor Phillip R. Manning

Phillip R. Manning 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).

  • Long wearing contact tip for inert gas arc welding
    Patent number: 4560858
    Abstract: A long wearing contact tip for an inert gas arc welder comprises an elongated cylindrical copper member having a longitudinal bore therethrough. A portion of the bore is enlarged for receiving a steel liner formed of either spiral wound steel wire or steel tubing. Circumferential grooves are cut into the external surface of the contact tip to afford better cooling of the tip by the inert gas flowing past the tip.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: December 24, 1985
    Assignee: Ashton Wray, Jr.
    Inventor: Phillip R. Manning