Pivoting and barrier locking operator system

Details Pivoting and barrier locking operator system Pivoting and barrier locking operator system

2006-04-27

2009-08-18

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

C318S602000, C318S466000, C318S468000, C049S026000, C049S028000

Reexamination Certificate

active

07576504

ABSTRACT:
An operator system for moving a barrier between limit positions, includes an operator motor assembly mounted to the barrier, wherein the motor assembly is movable between an operating position and a locking position with the motor assembly blocking movement of the barrier. A bias assembly allows the motor assembly to move toward the locking position when either a predetermined force overcomes a biasing force, or when the barrier is moved to a closed position or when forced entry is imposed on the barrier. A modified blocker tab having a plurality of projections, and which is part of the motor assembly, allows the speed/angular position of the rotation of the motor assembly to be monitored with increased resolution.

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