Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1975-10-20
1977-06-21
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200 48R, H01H 3312
Patent
active
040313468
ABSTRACT:
An electrical disconnect switch and circuit interrupter has an interrupter with an elongate tubular housing assembly that mounts on a fixed contact structure of the switch and has an internal fixed interrupter contact electrically connected to said fixed contact structure. A movable interrupter contact that normally abuts the fixed interrupter contact has a conductive actuating rod that slides in an apertured plug in one end of the housing assembly and has an actuating catch at its outer end, and a fixed conductive catch on the housing is electrically connected to the rod through the plug. An operating arm on a pivoted movable contact structure of the switch engages the catches sequentially as it is moved from closed position, first completing a bypass circuit through the fixed catch and then pulling the actuating rod to separate the interrupter contacts. The arm ultimately rides off the actuating catch and a spring returns the movable interrupter contact to its normal position.
REFERENCES:
patent: 3080466 (1963-03-01), Froland
patent: 3172979 (1965-03-01), Yonkers
patent: 3205330 (1965-09-01), Bridges
patent: 3838233 (1974-09-01), Bridges
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