Mercury switch

Details Mercury switch Mercury switch

H - Electricity

01

H

306/212

H01H 29/04 (2006.01) H01H 29/22 (2006.01)

Patent

CA 1252140

ABSTRACT OF THE DISCLOSURE 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 con- figuration of decreasing diameter in a direction toward the closed end of the housing (12). 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 loca- tion 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).

476623

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