Reed switch construction

Details Reed switch construction Reed switch construction

1977-12-12

1979-04-03

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Utilizing conductive liquid

335 47, 335154, H01H 108

Patent

active

041480007

ABSTRACT:
The magnetic elements of a mercury reed switch are supported within their non-magnetic capsule so that, instead of coming into contact in initially overlapping relationship, under the influence of a magnetic field they become essentially aligned with one another. The reeds are so constructed that by selection of the size or shape of their respective opposed ends, the magnetic flux pattern is modified to maintain desired relative alignment to achieve desired spacing between solid contacts. In a preferred form at least one of the magnetic elements carries a substantially non-magnetic conductive extension means, conductively affixed to its supporting element in position to complete an electrical circuit from its supporting element through intermediate conductive liquid and the other reed element in some switch condition.

REFERENCES:
patent: 3114811 (1963-12-01), Kohman
patent: 3716810 (1973-02-01), Hara et al.

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