Ultra precision pressure regulator

Details Ultra precision pressure regulator Ultra precision pressure regulator

1989-07-21

1991-05-07

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335273, 25112918, H01F 708

Patent

active

050140310

ABSTRACT:
A valve actuator for use in a pressure regulator. It comprises an electromagnetic having a plurality of pole pieces. A valve actuating permanent magnet is moveably secured to one of the pole pieces. The pole pieces are so disposed relative to each other that four distinct magnetic forces combine to urge the permanent magnet in a first or second direction depending on the polarity of current applied to a coil disposed about one of said pole pieces.

REFERENCES:
patent: 3571769 (1971-03-01), Pegram
patent: 3928988 (1975-12-01), Luth

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