Patents by Inventor William T. O'Donohue

William T. O'Donohue 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).

  • Drive assembly for drawing a movable welding carriage and method of welding
    Patent number: 4617447
    Abstract: An automatic welding apparatus includes a drive assembly for pulling a movable carriage along a weld joint by drawing a weld cable through the drive assembly. The weld cable is attached to a welding nozzle adjustably mounted on the carriage.A method of welding a weld joint using the automatic welding apparatus includes moving the carrier and the attached nozzle by moving the carrier and nozzle along the joint by pulling the cable in a direction substantially parallel to the joint.The present invention is particularly useful in arc welding applications where access to the weld joint is restricted or hindered.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: October 14, 1986
    Assignee: Caterpillar Inc.
    Inventor: William T. O'Donohue