Overhead doors operating apparatus

Details Overhead doors operating apparatus Overhead doors operating apparatus

E - Fixed Constructions

05

F

268/25, 342/40

E05F 15/10 (2006.01) E05F 15/16 (2006.01) H02K 7/10 (2006.01) H02K 7/108 (2006.01)

Patent

CA 1267426

Overhead Doors Operating Apparatus ABSTRACT Overhead doors operating apparatus uses a single motor power unit to operate a selected one of a plurality of overhead doors through a selectively energized coupling, such as an electromagnetic clutch, or if desired, all of the doors in unison by energiz- ing all the couplings. Thus only one motor power unit, instead of a power unit for each door, is needed to operate selectively one or more of the doors.

503210

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