Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1996-12-16
1997-12-02
Picard, Leo P.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
337 68, 337 72, 337 59, 337 53, H01H 7104, H01H 7116
Patent
active
056941064
ABSTRACT:
An improved safety switch with overload protection circuit includes a housing having a lamp cover and three connecting plates disposed in a receptacle. One connecting plate is provided with a bi-metal plate having a platinum contact, and one is provided with a platinum contact corresponding to the bi-metal plate. When power is overload, the bi-metal plate will trip off so that an electrically insulating baffling plate may slip in between the platinum contacts to cut off power supply. The lamp cover is provided with a control hook which may control the bi-metal plate. The lamp cover further has a leg extending into an elongated notch of the baffling plate. By pressing the lamp cover, displacement of the bi-metal plate and the baffling plate may be controlled to achieve electrical connection or disconnection.
REFERENCES:
patent: 4868535 (1989-09-01), Janniere
patent: 5223813 (1993-06-01), Cambreleng
patent: 5262748 (1993-11-01), Tsung-Mou
patent: 5453725 (1995-09-01), You
patent: 5526225 (1996-06-01), Wang
patent: 5539371 (1996-07-01), Yu
patent: 5541569 (1996-07-01), Jang
Klein David I.
Picard Leo P.
Rosenberg Morton J.
Ryan Stephen T.
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