Saturable tandem coil transformer relay

Details Saturable tandem coil transformer relay Saturable tandem coil transformer relay

1982-12-28

1984-08-21

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335234, 335281, H01F 708

Patent

active

044673043

ABSTRACT:
An electromagnetic device having a ferromagnetic core having first and second legs and a third leg wherein opposed pole faces define a gap. A source of latching flux retains an armature in contact with one of either of the pole faces. A primary coil and a secondary coil are coupled in tandem to the first leg of the ferromagnetic core. The second leg is saturable under the cumulative flux created in the first leg when the secondary coil allows only a unidirectional flux flow in the first leg. The saturation of the second leg transfers a portion of the operating flux from the second leg to the gap operably moving the armature mounted therein.

REFERENCES:
patent: 2046748 (1936-07-01), Hudson
patent: 2811602 (1957-10-01), Rommel et al.
patent: 3154728 (1964-10-01), Bordenet
patent: 3461354 (1969-08-01), Bollmeier
patent: 3508121 (1970-04-01), Kobayashi et al.
patent: 3517769 (1971-03-01), Pegram
patent: 3585547 (1971-06-01), Sturman
patent: 3597712 (1971-08-01), Nakagome et al.
patent: 3621419 (1971-11-01), Adams et al.
patent: 3673529 (1972-06-01), Garratt et al.
patent: 4321652 (1982-03-01), Baker et al.

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