Rocking armature transformer relay

Details Rocking armature transformer relay Rocking armature transformer relay

1982-12-28

1984-03-13

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335234, H01F 708

Patent

active

044370814

ABSTRACT:
An electromagnetic device with a ferromagnetic coil having first and second legs completing a closed magnetic circuit. An armature is pivotably mounted on a flux return bracket for optionally contacting the ferromagnetic core at two locations. Latching magnets cooperating with the flux return bracket retain the armature against the ferromagnetic coil at either of those two locations. A gap is provided between the armature in the ferromagnetic core at the location opposite from the location where the armature contacts the ferromagnetic core. A source of operating flux cooperates with the ferromagnetic core for selectively establishing a magnetic flux across such gap which may then operatively pivot the armature to contact the ferromagnetic core at the second location thereby creating a gap between the armature and the ferromagnetic core at the first location.

REFERENCES:
patent: 3461354 (1969-08-01), Bollmeier
patent: 3775715 (1973-11-01), Bosch et al.
patent: 4134090 (1979-01-01), Schuessler et al.
patent: 4223290 (1980-09-01), Agatahama et al.
patent: 4321652 (1982-03-01), Baker

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