Pivoting and barrier locking operator system
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United States of America Patent
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Aug 18, 2009
Grant Date -
May 7, 2009
app pub date -
Apr 27, 2006
filing date -
Jun 22, 2005
priority date (Note) -
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status (Latency Note)
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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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