Valve operator

Details Valve operator Valve operator

1975-04-01

1977-10-18

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335255, H01F 310, H01F 716

Patent

active

040548546

ABSTRACT:
A valve operator comprises a pole piece formed from magnetizable material, a hollow intermediate member formed from non-magnetic material the intermediate member being secured to the pole piece in a fluid pressure proof manner and a further hollow member secured to the intermediate member again in a pressure proof manner. The hollow members contain an armature and the end of the further member is sealed to completely enclose the armature.

REFERENCES:
patent: 2651744 (1953-09-01), Acklin et al.
patent: 3166692 (1965-01-01), Forrester et al.
patent: 3262027 (1966-07-01), Zaleske
patent: 3378732 (1968-04-01), Dietz et al.
patent: 3727160 (1973-04-01), Churchill
patent: 3757263 (1973-09-01), Saarem et al.

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