Key-operated switches

Details Key-operated switches Key-operated switches

1974-09-11

1976-03-16

Hohauser, Herman

Electricity: circuit makers and breakers

High-potential type

Rotating and pivoted

335206, 335207, 340274C, H01H 900

Patent

active

039447626

ABSTRACT:
A key operated switch device in which any one of a set of different keys may be utilized to operate a particular combination of sets of electrical contacts unique to that key, the sets of electrical contacts being provided by reed switches located adjacent a keyway adapted to receive any one of the keys in said set, and the keys incorporating different arrangements of magnets or magnetized zones adapted to actuate different combinations of said reed switches.

REFERENCES:
patent: 2769873 (1956-11-01), Noregaard

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