Method and structure of individually shielded, relay, pickup and

Details Method and structure of individually shielded, relay, pickup and Method and structure of individually shielded, relay, pickup and

1982-09-13

1985-12-03

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335268, H01F 700

Patent

active

045568596

ABSTRACT:
A method of increasing immunity to externally generated transients and reducing the magnitude of internally generated transients in a relay uses a flat or pancake holding coil mounted axially from the operating (pickup) coil. Both operating and holding coils may be individually provided with conductive shields juxtaposed to the flat surface of each such coil and partially covering their respective peripheries.

REFERENCES:
patent: 3013102 (1961-12-01), Doll
patent: 3576473 (1971-04-01), Genbauffe

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