Patents by Inventor David C. Gollan

David C. Gollan 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).

  • Publication number: 20030234279
    Abstract: An exit side pusher mechanism (10) for a flash butt welder (14) applies a pushing force which opposes the tendency of an leading strip (16) of steel to back away from a spacer bar (40) prior to welding. The pusher mechanism includes a rotating drive wheel (82) which frictionally engages the strip. The drive wheel is lowered into an engagement position by a pneumatically driven actuator (100). A pneumatically driven drive motor (84) rotates the drive wheel a preselected distance to advance the strip back towards the spacer bar.
    Type: Application
    Filed: June 19, 2002
    Publication date: December 25, 2003
    Applicant: TAYLOR-WINFIELD CORPORATION
    Inventors: David C. Gollan, Paul A Satolli, Barry L. Shultz