Control mechanism

Details Control mechanism Control mechanism

1977-10-11

1979-01-30

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

74479, 335189, 335266, 4001632, H01F 708

Patent

active

041375149

ABSTRACT:
A control mechanism for providing four separate linear control positions. Included is a lever having two ends, one end being free to register the four linear positions. First and second stationary solenoids both being located on one side of the lever are provided and the first solenoid plunger is pivotally secured to the lever at the end opposite the free end. The plunger of the second solenoid is pivotally secured to the lever between the ends of the lever. A stationary assembly including a spring is positioned and arranged to exert force on the lever between the first and second solenoids in a direction opposite the direction of solenoid plunger movement upon solenoid actuation. The spring force exerted on the lever is less than the combined force of the plungers of the first and second solenoids upon their common actuation. Separate spring force is exerted on the lever so that the lever is perpendicular to the plungers of the solenoids when both the first and second solenoids are deactuated.

REFERENCES:
patent: 3743073 (1973-07-01), Perez
patent: 3745497 (1973-07-01), Cavella
patent: 3952853 (1976-04-01), Feldman
patent: 3977320 (1976-08-01), Lupkas

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