Tractive solenoid device

Details Tractive solenoid device Tractive solenoid device

1980-07-14

1982-03-16

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335266, H01F 708

Patent

active

043203710

ABSTRACT:
A high efficiency bistable tractive solenoid device includes a magnetic housing having an interior cylindrical wall supporting stacked electromagnetic parts including a pair of coils and plural end pole pieces having inner diameters which are concentrically arranged to define a center bore. A double-acting plunger has an armature which is received by the center bore and is terminated by shaft ends having reduced diameters and being journalled for sliding movement in end plates also assembled within the housing interior wall with one of the shaft ends carrying a cam having a detent for latching the plunger in place.

REFERENCES:
patent: 707967 (1902-08-01), Griscom
patent: 3406338 (1968-10-01), Benbow
patent: 3900822 (1975-08-01), Hardwick et al.
patent: 4050020 (1977-09-01), Germer et al.
patent: 4128807 (1978-12-01), Halstead et al.
"Electromagnetic Devices" by H. C. Roters, John Wiley and Sons, 1941 pp. 242 and 290-306.

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