Fuse block with integral door sensing rotary disconnect

Details Fuse block with integral door sensing rotary disconnect Fuse block with integral door sensing rotary disconnect

2006-07-04

2006-07-04

Abrams, Neil (Department: 2839)

Electricity: circuit makers and breakers

Interlocking

Between switches and housing

Reexamination Certificate

active

07071427

ABSTRACT:
A disconnect is coupled to a rotary shaft communicating with a door-mounted knob provides an operator on the shaft for engaging the door handle to detect closure of the door. The operator includes a pair of coupling mechanisms that control the transmission of torque between the operator and the shaft depending on whether the door is open or closed. Specifically, when the door is closed, torque applied to the operator in both directions is transmitted to the shaft. If the door is open, torque applied to the operator is only transmitted in one direction to disconnect power through the disconnect unless the user performs a predetermined sequence of events to rotatably couple the operator to the shaft with respect to rotation in the opposite direction that connects power through the disconnect. When the door is open the operator may be easily used to disconnect power but may be used to connect power only when the user manipulates the operator in a certain way.

REFERENCES:
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patent: 1193144 (1965-05-01), None
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patent: 0564173 (1993-06-01), None

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