Key lock rotary selector switch

Details Key lock rotary selector switch Key lock rotary selector switch

1979-04-12

1980-10-07

Shepperd, John W.

Electricity: circuit makers and breakers

High-potential type

Rotating and pivoted

200 42R, 200 4, 200153L, H01H 928

Patent

active

042270561

ABSTRACT:
A key lock rotary selector switch characterized by a switch structure and a rotatable operating unit; the switch structure having a reciprocable contact operating member for effecting opening and closing of a circuit through the switch; the operating unit comprising an actuator tube and a rotatable handle detachably connected to the tube, and an actuator cam for different modes of operating the switch; and a lock in the handle for locking the handle in a given mode of operation.

REFERENCES:
patent: 2498614 (1950-02-01), Tregoning
patent: 2669616 (1954-02-01), Frank
patent: 2748210 (1956-05-01), Frank
patent: 2803716 (1957-08-01), Nolden et al.
patent: 3497644 (1970-02-01), Schink et al.
patent: 3917919 (1975-11-01), Taharn
patent: 4000382 (1976-12-01), Kolb
patent: 4009357 (1977-02-01), Naylor
patent: 4052582 (1977-10-01), Mullen et al.
patent: 4175220 (1979-11-01), Johnston et al.
patent: 4175221 (1979-11-01), Kellogg

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