Safety locking system

Details Safety locking system Safety locking system

1979-09-20

1981-04-28

Little, Willis

Electricity: circuit makers and breakers

High-potential type

Rotating and pivoted

200276, H01H 2700

Patent

active

042647924

ABSTRACT:
A safety locking switch that can connect a selected wire to a grounded plate, on which the switch is mounted, has a metallic housing, a key operated lock mounted in the housing, an insulator affixed to the housing and an electrical lead extending through the insulator into the housing. In the locked position, the lock is in contact with both the electrical lead and the housing thereby grounding the selected wire connected to the lead. When unlocked by the key, the lock moves away from the end of the lead within the housing thereby open circuiting the path between the grounded plate and the selected wire.

REFERENCES:
patent: 3026385 (1962-03-01), Davis et al.
patent: 3665128 (1972-05-01), Schaad et al.
patent: 4075877 (1978-02-01), Van Gompel

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