Patents by Inventor Dominick P. DaCosta

Dominick P. DaCosta 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).

  • Welding filler wire feed apparatus
    Patent number: 4206862
    Abstract: Welding filler wire feed apparatus includes a handpiece, means for advancing filler wire through the handpiece in response to a signal produced by a finger pressure-sensitive switch on the handpiece, and a flexible conduit, connecting the handpiece to filler wire advancement means, for passage of filler wire therethrough. Rate of wire advancement through the handpiece is adjustable.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: June 10, 1980
    Assignee: Pennwalt Corporation
    Inventor: Dominick P. DaCosta