Magnetic latching solenoid

Valves and valve actuation – Permanent or constantly energized magnet actuator

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Details

25112901, 335234, F16K 3108

Patent

active

054700434

ABSTRACT:
This invention discloses a D.C. magnetic latching solenoid that retains a moving armature in a first or second position by means of a pair of magnets, thereby having a zero-power requirement after actuation. The first or second position is selected by reversing the polarity of the D.C. voltage which is enough to overcome the holding power of either magnet and transfer the armature to an opposite position. The coil is then de-energized.

REFERENCES:
patent: 3040217 (1962-06-01), Conrad
patent: 3368788 (1968-02-01), Padula
patent: 3532121 (1970-10-01), Sturman
patent: 3634735 (1972-01-01), Komatsu
patent: 4306704 (1981-12-01), Clark
patent: 4683454 (1987-07-01), Vollmer et al.
patent: 5010911 (1991-04-01), Grant

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