Thermal protector with bimetal plate

Details Thermal protector with bimetal plate Thermal protector with bimetal plate

1997-01-29

1998-09-08

Paschall, Mark H.

Electric heating

Heating devices

With current connection and/or disconnection means

219512, 219494, 219549, 337102, 337107, H05B 102

Patent

active

058047980

ABSTRACT:
A thermal protector having a fixed plate with a fixed contact point at one end, a movable plate having a movable contact point at a position corresponding to the fixed contact point. A bimetal plate which bends when a temperature exceeds a specified level deforms movable plate so as separate the contacts. There are first and second terminals connecting the fixed and movable plates with an external circuit and a heating element connected to the first and second terminals to maintain an open-circuited state. The heating element is flexible and is arranged so as to be deformed following the deformation of the bimetal plate and to always physically contact always with the bimetal plate.

REFERENCES:
patent: Re31596 (1984-06-01), Kicherer et al.
patent: 4174511 (1979-11-01), Knapp et al.
patent: 4394649 (1983-07-01), Gossler
patent: 4704595 (1987-11-01), Essig et al.
patent: 5233325 (1993-08-01), Takeda
patent: 5607610 (1997-03-01), Furukawa
Japanese Unexamined Patent Application No. 3-72940.
No. 1 -catalog of Polyimide film of Toray-Dupon.
No. 2 -catalog of Polyimide film of Toray-Dupon.

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