Trip solenoid

Details Trip solenoid Trip solenoid

1983-05-18

1984-09-04

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335230, 335234, H01F 708

Patent

active

044700300

ABSTRACT:
Trip solenoids are disclosed in which a permanent magnet is positioned exteriorly of the armature case. In one version, a rotary solenoid has a permanent magnet between a ball race plate and the case and has a magnetic force sufficient to hold the rotary solenoid in its actuated position when the power is removed from the solenoid coil. An axial version of the trip solenoid is also disclosed.

REFERENCES:
patent: 2496880 (1950-02-01), Leland
patent: 2566571 (1951-09-01), Leland
patent: 2915681 (1959-12-01), Troy
patent: 3027772 (1962-04-01), Smith
patent: 3755766 (1973-08-01), Read
patent: 3783423 (1974-01-01), Mater et al.
patent: 3792390 (1974-02-01), Boyd
patent: 4316167 (1982-02-01), Koehler
Publication Catalog LS-1017, Ledex, Inc. (Dec. 1982) "Linear Solenoids".

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