Switching device

Details Switching device Switching device

1975-03-31

1976-12-28

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

200146R, 335201, H01H 120, H01H 938

Patent

active

040004805

ABSTRACT:
A switching device includes a combination of a fixed contact, first and second electrically connected movable contacts, and an arrangement for moving the movable contacts so that the first movable contact closes to the fixed contact before the second movable contact closes to the fixed contact and so that the first movable contact opens from the fixed contact after the second movable contact opens therefrom.

REFERENCES:
patent: 2499420 (1950-03-01), Sakatos
patent: 3371414 (1968-03-01), Gwyn, Jr.
patent: 3805200 (1974-04-01), Suzuki
The Bell System Technical Journal, "A New General Purpose Relay For Telephone Switching Systems".

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