Automatic gate operator
AssigneeThe Chamberlain Group, Inc.
InventorsEric Robb, Richard Hill, William Gioia, Edward Kukulski
Life of this patent
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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.
Claims13
A method of setting open and closed limits of motion in a movable barrier operator comprising a barrier coupled to a motor and having apparatus for sensing a position of the barrier comprising:
- initiating a limit learn procedure;
- first manually placing the barrier at either of the first or second limit after uncoupling the barrier from the motor;
- reading from the sensing apparatus a first representation of the barrier position at the first manual placement and storing the first representation;
- second manually placing the barrier at the limit other than the one at which the barrier was placed in the first manually placing step after uncoupling the barrier from the motor;
- reading from the sensing apparatus a second representation of the barrier position at the second manual placement and storing the second representation,
- controlling the movement of the barrier between the open and closed limits in response to the stored first and second representations.
Dependencies are inferred from the claim text.