G - Physics – 05 – B
Patent
G - Physics
05
B
342/22.1
G05B 19/02 (2006.01) B65G 69/00 (2006.01)
Patent
CA 1335306
Disclosed is a loading dock signalling and control system for a dock facility which includes a loading dock, an electrically controllable locking device operative to receive and retain a parked vehicle and a condition sensing device associated with the locking device. The system comprises: green and red outside lights for positioning on the outside of the facility, green and red inside lights, inside manually operable lock and unlock switch devices accessible to dock personnel, a control unit having input and output terminals, the terminals including first input terminals coupled to the condition sensing device, second input terminals coupled to the switch means, first output terminals coupled to the locking device and second output terminals coupled to the inside and outside signal lights. The control unit is programmed to periodically check the conditions of the input terminals and to effect programmed operations which include control of the first output terminals in accordance with the status of the first and second input terminals for operating the device in accordance with the condition thereof and in accordance with signals from the lock and unlock switch devices and which include control of the second output terminals in accordance with the status of the first input terminals to operate the inside and outside lights as a function of the condition of the locking device. The locking device is arranged for cooperable operation with associated equipment at the facility, the terminals further including third input terminals for connection to associ- ated equipment, and the programmed operations further including control of first output terminals as a function of status of the third input terminals.
594146
Swessel Michael A.
Trickle Glen
Goudreau Gage Dubuc
Rite-Hite Holding Corporation
LandOfFree
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