Protection mechanism for switches

Details Protection mechanism for switches Protection mechanism for switches

2006-04-18

2006-04-18

Vortman, Anatoly (Department: 2835)

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

C337S059000

Reexamination Certificate

active

07030726

ABSTRACT:
A protection mechanism for a switch device includes a pull member that has one end pivotably connected to the switch member and the other end which is a hook end for lifting the bimetallic plate to set the switch device to “OFF” status. A push member is pivotably connected to the pull member and includes a lower end which is movably engaged on an inclined surface of a block extending from an inside of the case of the switch device. The lower end of the push member may push the bimetallic plate to its “ON” status. When the bimetallic plate is deformed in an overload situation, the push member is pivoted away from the bimetallic plate in such a way that the bimetallic plate can be completely deformed.

REFERENCES:
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patent: 5451729 (1995-09-01), Onderka et al.
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patent: 5933069 (1999-08-01), Huang
patent: 6822179 (2004-11-01), Huang

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