Polarized rotary solenoid

Details Polarized rotary solenoid Polarized rotary solenoid

1987-02-09

1988-04-05

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335272, H01T 708

Patent

active

047361751

ABSTRACT:
A rotary solenoid providing opposite direction pivotal movement on opposite olarity d.c. energization. The solenoid has a pivoting shaft from which a permanent magnet armature having ends of opposite magnetic polarity extends transversely and oppositely. The armature is disposed between a pair of pole pieces each of which extends along the armature between its ends. The pole pieces are oppositely electromagnetically magnetized by a d.c. winding so that reversing the electrical polarity of the winding reverses the polarity of each pole piece and its attraction or repulsion of the armature ends. The pole pieces are opposite arms of a U-shaped ferromagnetic structure on which the winding is centrally wound, and the shaft is supported by a bearing in a nonferromagnetic bridge between the pole pieces.

REFERENCES:
patent: 2364656 (1944-12-01), Price
patent: 2449901 (1948-09-01), Kaiser
patent: 2846623 (1958-08-01), Wolff
patent: 3198995 (1965-08-01), Grebe
patent: 3202885 (1965-08-01), Sohns
patent: 3229170 (1966-01-01), Daugherty et al.
patent: 3229171 (1966-01-01), Daugherty
patent: 3906416 (1975-09-01), Sprando
patent: 3928988 (1975-12-01), Luth

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