Plug and switch interlock including gear and latch assembly

Details Plug and switch interlock including gear and latch assembly Plug and switch interlock including gear and latch assembly

1992-12-07

1994-03-29

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 920, H01H 1370

Patent

active

052987019

ABSTRACT:
A switch enclosure has a receptacle to receive a pin and sleeve plug having a key on the outside of the sleeve. A handle on the outside of the enclosure operates the switch through a gear train. An interlock mechanism has a sliding latch which prevents the gear train from turning unless the plug is fully inserted so that the key can remove the sliding latch from recesses in one of the gears. Two recesses are provided to inhibit defeat of the interlock mechanism.

REFERENCES:
patent: 1556831 (1935-10-01), Wyman
patent: 3716683 (1973-02-01), Hafer
patent: 4553000 (1985-11-01), Appleton
Hubbell Pin & Sleeve Connector brochure, pp. 2, 6 and 11, pub., 1985.

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