Coaxial polarity reversing switch with rotary actuation

Details Coaxial polarity reversing switch with rotary actuation Coaxial polarity reversing switch with rotary actuation

1977-02-02

1978-06-27

Price, William

Electricity: circuit makers and breakers

Liquid contact

Time delay

200155R, 200304, H01H 300, H01H 1928

Patent

active

040977013

ABSTRACT:
A coaxial, polarity switch, for insertion in and electrical connection to a oaxial power transmission line, designed to carry high currents. Coaxial transmission lines are used to contain stray magnetic fields and this coaxial switch maintains the coaxial relationship. An outer rotary switch member, made up of insulators and conductors, is rotatable about a fixed inner switch member, and has multi-louvered contact material, containing many contact points, to conduct the high current. The outer switch member, in one position, maintains forward polarity; in a central position, the switch is off; in a third position, the polarity is reversed. Thus the switch is a DPDT, center-off type, but SPST, SPDT, and DPST types are possible. Non-conductive coolant may be circulated through passages in the switch, and may be sealed in the switch by seal members.

REFERENCES:
patent: 2745917 (1956-05-01), Gates
patent: 3141943 (1964-07-01), Lanctot
patent: 3495060 (1970-02-01), Biggs

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