Patents Assigned to Gated Devices, Inc.
  • Movable barrier apparatus
    Patent number: 4488630
    Abstract: A movable barrier apparatus for a power press and the like and having a fluid circuit for controlling operation of a machine tripping device responsive to a predetermined sequence of rotary cam mechanism movements for positively locking the barrier in an operative position precluding operator access to the machine work area, the rotary cam mechanism cooperating with the circuit to render machine tripping valve means of the fluid circuit inoperative when the barrier is in a position other than its operative position.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: December 18, 1984
    Assignee: Gated Devices, Inc.
    Inventor: Edwin W. Plumb