E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/10 (2006.01) E05F 15/20 (2006.01)
Patent
CA 2521722
A control unit for a moveable barrier, such as a garage door, includes a microcontroller connected to a motor speed detector, motor current sensor or a sensor for determining forces exerted on or by the barrier. A user interface includes user actuatable switches for setting a first maximum force value to be exerted on or by the barrier when moving in one direction and the microcontroller automatically sets the value of a second maximum force to be exerted on or by the barrier when moving in the opposite direction. The second force value may be based on the force value set by the user or the second force value may be a preset value. Both force limits may be automatically set as a function of a maximum force exerted on said barrier during movement thereof, during a force learning operation.
Moffat & Co.
Overhead Door Corporation
LandOfFree
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