Vacuum switch with intermittently energized electromagnetic coil

Details Vacuum switch with intermittently energized electromagnetic coil Vacuum switch with intermittently energized electromagnetic coil

1977-03-01

1978-08-22

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3366

Patent

active

041091221

ABSTRACT:
An evacuated envelope contains two stationary contact elements which have an gap therebetween, and positioned within the gap are two metal discs separated by an insulating disc. Each metal disc is connected to a terminal coil which is connected to an electromagnetic coil operative to produce a magnetic field in the region of the gap and substantially in parallel with the width of the gap. A U-shaped contact element is positioned with the envelope to move into and out of contact with each of the stationary contact elements. The stationary contact elements are each connected to separate contact rods which extend through the envelope walls to the outside.

REFERENCES:
patent: 2729723 (1956-01-01), Pristsak
patent: 2820122 (1958-01-01), Teszner
patent: 3185797 (1965-05-01), Porter
patent: 3845263 (1974-10-01), Dickinson
patent: 4021628 (1977-05-01), Kimblin

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