Operating handle for an encapsulated switching apparatus

Details Operating handle for an encapsulated switching apparatus Operating handle for an encapsulated switching apparatus

1975-06-05

1977-06-28

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 920

Patent

active

040327329

ABSTRACT:
An operating handle for an encapsulated switching apparatus which includes a housing having a door and a stationary switching shaft. The handle is fastened to the door of the housing in a switched-on position of the apparatus by means of a spring-loaded shiftable locking plate which is shifted against the force of a loading spring in a switched-off position of the apparatus into a position in engagement with a stop member for releasing the switching shaft from the locking plate. The improvement comprises the stop member being formed by a resilient detent spring disposed within the operating handle, the restraining force of which can be overcome by an operating force applied to the handle.

REFERENCES:
patent: 2475338 (1949-07-01), Rowe
patent: 2512505 (1950-06-01), Rowe
patent: 2950363 (1960-08-01), Bachman et al.
patent: 3022391 (1962-02-01), Oravec
patent: 3657497 (1972-04-01), Homberg et al.

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