Patents Assigned to Curtis Noll Corporation
  • Retractable stacker guard
    Patent number: 3934679
    Abstract: A retractable overhead guard for use on vertical lifting machines which protects an operator of such equipment from falling objects or material. The overhead guard swings down into protective position in response to vertical load lifting movement by the machine and retracts to a non-obstructing position in response to load-lowering movement of the machine.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: January 27, 1976
    Assignee: Curtis Noll Corporation
    Inventor: Nathan S. Lieptz