Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent
1983-11-29
1985-10-01
Marcus, Stephen
Electricity: circuit makers and breakers
Electric switch details
Cases and bases
200153G, 267177, H01H 908
Patent
active
045448175
ABSTRACT:
A vacuum contactor with a kick-out spring that does not require readjustment after disassembly of internal portions of the vacuum contactor. Two separate frame members are secured fixedly against each other in register in the operational mode. The bottom portion of a vertically disposed kick-out spring is attached to a horizontal bar which captures a lever. The lever is interconnected with an electromagnet and with the contacts of a vacuum interrupter in an integrated system so that energization of the electromagnet forces the contacts to a closed state and exerts tension against the spring through the horizontal bar. Deenergization of the electromagnet allows the kick-out spring to relax its tension thus opening the aforementioned contacts. When the two frame portions are separated, the spring relaxes to a minimal tension disposition but is prevented from further relaxation because of a mechanical stop which prevents the horizontal bar from moving upwardly and yet allows the lever members to be disengaged from the horizontal bar.
REFERENCES:
patent: 1271535 (1918-07-01), Bijur
patent: 2265629 (1941-12-01), Christiansen
patent: 2465621 (1949-03-01), Wheeler
patent: 2589167 (1952-03-01), Valkenberg et al.
patent: 3224727 (1965-12-01), Dale et al.
Kidorf Renee S.
Marcus Stephen
Moran M. J.
Westinghouse Electric Corp.
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