Electricity: circuit makers and breakers – Liquid contact – Tiltable or rotatable
Patent
1984-07-20
1986-02-25
Marcus, Stephen
Electricity: circuit makers and breakers
Liquid contact
Tiltable or rotatable
200 612, 200190, 200227, H01H 2922
Patent
active
045729344
ABSTRACT:
The present invention relates to a mercury switch (10) including an outer metal housing (12) having a closed end and an open end. A baffle member (14) is positioned in the housing (12) immediate of the closed and open ends. The baffle member (14) defines a first bore (32), a second bore (34) of increasing diameter in a direction toward the open end of the housing (12), and a third bore (36). An electrode assembly (16) is partially inserted into the open end of the housing (12). The electrode assembly includes a solid electrode (40) having a stem portion (42) and a head portion (44) with a truncated conical configuration of decreasing diameter in a direction toward the closed end of the housing (12) and having a recessed surface 102 providing a mercury wetting reservoir. The baffle member (14) and the truncated conical head portion (44) cooperate to provide contact between a first supply of mercury (30a) and the solid electrode (40) at a location removed from an insulating member (46). The electrode assembly (16) includes a metal weld ring member (50) which is suitably secured to the housing (12).
REFERENCES:
patent: 2182216 (1939-12-01), Staley
patent: 2219496 (1940-10-01), Staley
patent: 2229990 (1941-01-01), Sateren
patent: 2265681 (1941-12-01), Bear et al.
patent: 2269690 (1942-01-01), Rickmeyer
patent: 2570095 (1951-10-01), Bucklen, III et al.
patent: 2591571 (1952-04-01), Marino
patent: 2823284 (1958-02-01), Lentz et al.
patent: 3351726 (1967-11-01), Cook
patent: 4135067 (1979-01-01), Bitko
Kidorf Renee S.
Marcus Stephen
S. J. Electro Systems Inc.
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