Patents by Inventor Ralph Pierce

Ralph Pierce 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).

  • Electrode oscillating mechanism for welding electrode holder
    Patent number: 5079405
    Abstract: A small, fractional horsepower, low voltage electric motor with an eccentric weight on its output shaft is attached to the electrode clamp of a hand held welding electrode holder. The oscillating or orbiting motion generated by rotation of the eccentric weight is transmitted through the electrode clamp to the welding rod. Higher quality welds and reduced sticking and burn through result.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: January 7, 1992
    Assignee: Charles W. Pierce
    Inventor: Ralph Pierce