Patents by Inventor Wallace Martindell Catanach, III

Wallace Martindell Catanach, III 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).

  • Switch machine improvements
    Patent number: 7152830
    Abstract: A control mechanism for moving switch points on a railroad track, having a drive screw driven by a motor, a traveling block moving along the drive screw to position the switch points, an end stop on the drive screw for limiting movement of the traveling block, a hand crank for manually turning the drive screw, and a torque limiting clutch on the hand crank.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: December 26, 2006
    Assignee: General Electric Companyy
    Inventors: John Patrick Dowell, Charles David Crawford, Maurizio Biagiotti, Michael Lee Ashton, Edward Armand Croteau, Wallace Martindell Catanach, III