Inventors:
Eric Robb - Carol Stream IL, US
Richard Hill - Lake Zurich IL, US
William Gioia - Winfield IL, US
Edward Kukulski - Carol Stream IL, US
Assignee:
The Chamberlain Group, Inc. - Elmhurst IL
International Classification:
H02P 1/04
US Classification:
318468, 318 16, 318466, 318266, 340 522
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.