Tap-off interlock

Details Tap-off interlock Tap-off interlock

2007-12-25

2007-12-25

Abrams, Neil (Department: 2839)

Electrical connectors

With conduit or duct

Including receptacle

C200S050200, C439S372000

Reexamination Certificate

active

11227940

ABSTRACT:
A bus to tap-off device interlock having a first position wherein the tap-off device can be installed or removed from the busway section and a second position in which an installed tap-off device can not be removed from the busway section and an uninstalled tap-off device can not be installed onto a busway section. The interlock is movable between the first and second positions by operation of an operating handle that controls the OFF or OPEN and ON or CLOSED state of an electrical disconnect device located inside the tap-off device.

REFERENCES:
patent: 2984769 (1961-05-01), Turton
patent: 3048672 (1962-08-01), Cataldo et al.
patent: 3657606 (1972-04-01), Greger et al.
patent: 4308437 (1981-12-01), Takagi et al.
patent: 4728757 (1988-03-01), Buxton et al.
patent: 4831489 (1989-05-01), Ozu et al.
patent: 4912599 (1990-03-01), Wittmer
patent: 5019676 (1991-05-01), Heckenkamp

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