Magnetic brake for powered window covering

Details Magnetic brake for powered window covering Magnetic brake for powered window covering

2005-11-22

2005-11-22

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S093000, C310S152000, C160S16810P, C188S267000

Reexamination Certificate

active

06967418

ABSTRACT:
Two braking magnets are attached to the housing of a motor of a motorized component such as a window covering, with one magnet north face down and the other magnet south face down. With this structure the motor is braked from turning under the weight of the window covering when deenergized, while during operation the average null value of the braking field results in minimal drag on the motor.

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