Electromagnetically actuated valve

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device

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Details

335256, 335223, 335266, 335273, 123 9011, 25112902, 25112909, 2511291, 25112915, 25112918, F09L 904

Patent

active

055482635

ABSTRACT:
An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position proximal from the electromagnet when the electromagnet is on, a first resilient member adapted to bias said core element in the normally biased first position, and a second resilient member adapted to bias the electromagnet away from the core. The first resilient member is more resilient than the second resilient member. Therefore, the core approaches the electromagnet when the electromagnet is on until the core reaches the fixed stop position, and the electromagnet subsequently approaches the core to the fixed stop position. The actuator may further include an adjustment member that engages the electromagnet so as to control the pressure of the electromagnet against the second resilient member, whereby the axial position of the electromagnet is controlled.

REFERENCES:
patent: 4455543 (1984-06-01), Pischinger et al.
patent: 4515343 (1985-05-01), Pischinger
patent: 4715331 (1987-12-01), Kreuter
patent: 4719882 (1988-01-01), Kreuter
patent: 4777915 (1988-10-01), Bonvallet
patent: 5117213 (1992-05-01), Kreuter et al.
patent: 5131624 (1992-07-01), Kreuter et al.

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