Electromagnetic indicator

Details Electromagnetic indicator Electromagnetic indicator

1977-08-09

1979-01-02

Pitts, Harold I.

Communications: electrical

Audible indication

Percussion-type sound producer

340381, 3403785, G08B 522

Patent

active

041329864

ABSTRACT:
An indicator flag is movable alternately into one of a plurality of display positions thereby to provide a distinguishable visual indication in each position. The indicator flag carried by a movable assembly is actuated by electromagnetic means and the movable assembly is latched in each display position. A pair of switches are associated with and controlled by the movable assembly from a normally closed to an open condition. The switches may function variously to control associated equipment or switch the electromagnetic means so that drive energy is required only during transition of the indicator flag from one of the plurality of display positions to another, among others.

REFERENCES:
patent: 3573812 (1971-04-01), Pihl

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