Valves and valve actuation – Permanent or constantly energized magnet actuator
Patent
1994-05-26
1995-11-28
Hepperle, Stephen M.
Valves and valve actuation
Permanent or constantly energized magnet actuator
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
Albano Richard K.
Marts Donna J.
Morrison, Jr. John L.
Richardson John G.
Hepperle Stephen M.
Kirsch Alan D.
Lockheed Idaho Technologies Company
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