Relay switch apparatus

Details Relay switch apparatus Relay switch apparatus

1986-03-06

1987-07-14

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Utilizing conductive liquid

335 57, 200210, H01H 108, H01H 2900

Patent

active

046805630

ABSTRACT:
A multi-positional mercury switch (1) for use with miniature relays (3). The mercury switch apparatus has magnetic contact structures (11, 13, 16, 17) supported in a sealed envelope member (10) with free ends thereof located in the envelope member and positioned to engage or disengage each other in response to a magnetic field generated by current appearing in a coil (310) externally surrounding the envelope member. A magnetic contact structure (11) has a mercury wetted surface (113) and an opening (111) at a free end (116) extending from the mercury wetted surface through the magnetic contact structure for forming a mercury contact (117) opposite the mercury wetted surface.

REFERENCES:
patent: 3904999 (1975-09-01), Rich et al.
patent: 4085392 (1978-04-01), Lacis et al.
patent: 4134088 (1979-01-01), Asbell et al.
patent: 4148000 (1979-04-01), Lacis et al.
patent: 4164720 (1979-08-01), Bollen
patent: 4236129 (1980-11-01), Lacis et al.
patent: 4368442 (1983-01-01), Yamaguchi et al.

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