E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/16 (2006.01) E05F 15/10 (2006.01) G01B 7/00 (2006.01)
Patent
CA 2452931
Methods and apparatus for sensing barrier position in a barrier movement system are disclosed. Electrical apparatus is connected to the barrier and generates a barrier position signal representative of barrier positions which may be used by a controller to detect barrier position. The electrical apparatus can be manually adjusted to reflect a first barrier position such as a closed position. Other barrier positions can be sensed by comparing the barrier position signal to other manually adjustable position signals.
Chen William
Gavel Andrew
Pulis Derek
Macrae & Co.
The Chamberlain Group Inc.
LandOfFree
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