Releases Latch From Either Side Patents (Class 49/271)
  • Patent number: 8745922
    Abstract: A gate apparatus includes a frame that is approximately in a shape of a letter ā€œUā€, a gate that opens forward or backward, a rotational support device that supports the gate so that the gate rotates and moves upward relative to the frame, a locking device that locks the gate at a closed position, and a pedal device that unlocks the locking device. The pedal device includes a pair of pedals on the both sides of the gate, and a push-up member that is linked to the pair of pedals. The push-up member includes a push-up surface that tilts when the pedal is operated. The push-up surface tilts so that the push-up surface moves upward and comes in contact with the gate on the side closer to the pedal that has been operated, and applies a push-up force and a rotation force to the gate.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 10, 2014
    Assignee: Richell Corporation
    Inventors: Yoichi Matsuda, Satoshi Urabe
  • Patent number: 4521992
    Abstract: A ramp-operated mechanical gate system, including vertically-swinging gate, sliding gate and side-swinging gate embodiments which utilize collapsible ramps to supply energy to open a gate so that the gate is opened automatically when the collapsible ramp is depressed by an approaching vehicle and is closed automatically when the vehicle drives through the gate and the ramp is no longer depressed.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: June 11, 1985
    Inventor: Donald C. Campbell