Patents by Inventor E. L. Whiffen

E. L. Whiffen 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).

  • Moving head high frequency resistance welding system
    Patent number: 4921568
    Abstract: In a high frequency resistance welding system useable with massive or spatially extensive workpieces, the welding head is transported over weld areas by gantry means to provide high speed, high quality welds at appreciably less cost and with quality comparable to that of welds from conventional stationary head systems.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: May 1, 1990
    Assignee: Rockwell International Corporation
    Inventor: E. L. Whiffen