E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/20 (2006.01) E05F 15/10 (2006.01)
Patent
CA 2561626
An operating device for an overhead closure which comprises a motor, operatively connected to the closure for opening and closing the closure, and at least one sensor unit mountable either the closure or a support surface bordering the closure. The sensor unit is operable to detect the presence of an obstacle obstructing a travel path of the closure and to generate a signal in response thereto. A control system is in communication with the sensor and with the motor. The control system includes a control unit which receives the signal and provides a sensing feature which stops and/or opens the closure in response to the signal. The control unit deactivates the sensing feature at a selected point prior to an end limit position of the closure. The selected point is determined by the control unit based on a calculated delay characteristic.
Claudel Christian
Wang Changlu
9141-0720 Quebec Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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