Interlock system and method for rotary disconnect switches

Details Interlock system and method for rotary disconnect switches Interlock system and method for rotary disconnect switches

2008-09-16

2011-12-13

Figueroa, Felix O (Department: 2833)

Electricity: circuit makers and breakers

Interlocking

Between switches and housing

Reexamination Certificate

active

08076598

ABSTRACT:
Disclosed herein is an interlock system in combination with an enclosure, including: the enclosure having a base and a door that define an interior; a rotary handle attached to the door; a disconnect switch disposed in the interior of the enclosure and including a shaft extending toward an exterior of the enclosure in a direction toward the door; a first interlocking member attached to the door and extending toward an interior of the enclosure; and a second interlocking member attached to the shaft. The handle is configured to engage the shaft when the door is closed and rotate the shaft to move the disconnect switch between an on position and an off position. The second interlocking member is configured to engage and interlock with the first interlocking member when the door is closed and the disconnect switch is in the on position.

REFERENCES:
patent: 3009029 (1961-11-01), Bodenschatz et al.
patent: 3086092 (1963-04-01), Poulton, Jr.
patent: 3970808 (1976-07-01), Gryctko et al.
patent: 4118607 (1978-10-01), Shaffer
patent: 4405844 (1983-09-01), Dizon et al.
patent: 4602136 (1986-07-01), Deneke et al.
patent: 4806710 (1989-02-01), Kalvaitis et al.
patent: 7420133 (2008-09-01), Farrow et al.
patent: 2007/0029178 (2007-02-01), Mukharzi et al.

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