Automatic gate operator

Details Automatic gate operator Automatic gate operator

2008-03-11

2008-03-11

Ip, Paul (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

C318S266000, C318S282000, C074S089380, C049S360000

Reexamination Certificate

active

10988939

ABSTRACT:
A barrier movement operator is having a position sensor in a telescoping barrier control arm is described. A controller, remote from the arm, senses the barrier position to identify limits of barrier travel and to control rate of travel of the barrier between limits. The operator includes both optical and edge sensor obstruction detectors and is responsive to wireless communication for receiving user initiated command signals.

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