Lockable switch mechanism

Details Lockable switch mechanism Lockable switch mechanism

2007-05-29

2007-05-29

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Switch activation inhibitor

Removable actuator

C200S043070, C200S300000, C200S325000

Reexamination Certificate

active

11478477

ABSTRACT:
A locking switch assembly includes a cam, a plunger, and a locking mechanism. The cam is rotatably attached to a frame assembly and an end of the plunger is constructed to follow a contour of the cam. The plunger is movable between a plunger first position and a plunger second position. A pin is biased against the plunger and movable between a pin first position and a pin second position and locks the plunger in the plunger second position when the pin is in the pin second position. A breakable arm prevents movement of the plunger from the plunger second position to the plunger first position unless a force above a selected amount is applied to the cam when the plunger is in the plunger second position.

REFERENCES:
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patent: 5868243 (1999-02-01), Bachle
patent: 5894116 (1999-04-01), Da Dalt
patent: 6483053 (2002-11-01), Kajio et al.
patent: 6872898 (2005-03-01), Mohtasham
patent: 6982391 (2006-01-01), Da Dalt
patent: 501303 (1970-12-01), None
patent: 1376632 (2004-02-01), None
patent: 2091043 (1982-07-01), None

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