Device for selectively preventing one or more modes of actuating

Details Device for selectively preventing one or more modes of actuating Device for selectively preventing one or more modes of actuating

1987-08-13

1988-05-03

Tolin, G. P.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 18, 200 4316, 337 73, H01H 922

Patent

active

047421908

ABSTRACT:
The invention provides a device for selectively preventing actuating modes of a manual control member equipping the face of the case of an apparatus and able to change over from a first position corresponding to a first function, to a second position corresponding to a second function and, from the first position to a third position corresponding to a third function. It includes a cover mounted for pivoting on the case and able to be applied against said face. This cover allows manual access to said member and includes means for allowing this member to change over from the first position to the third position and preventing it changing over from one to the other of the first and second positions.

REFERENCES:
patent: 3018341 (1962-01-01), Bassani
patent: 3197582 (1965-07-01), Norden
patent: 3313896 (1967-04-01), Gray
patent: 3712819 (1973-01-01), Field
patent: 4074091 (1978-02-01), Bischof

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