Glass panel circuit breaker

Details Glass panel circuit breaker Glass panel circuit breaker

1975-04-07

1976-03-02

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With current connection and/or disconnection means

219203, 219522, 219543, H05B 102, H05B 306

Patent

active

039419754

ABSTRACT:
A frangible panel having an electrically-energizable layer carried in an area thereof for heating the panel and main circuit means for supplying electrical power to the layer is provided with circuit breaker means operable to interrupt electrical power to the layer upon breakage of the panel. The circuit breaker means includes a fusible link connected in series with the layer and a solid-state control device connected in the main circuit in parallel with the layer. The solid-state device has a control gate which is connected to a sensing circuit surrounding the electrically-energizable layer and which is connected in the main circuit to render the solid-state control device non-conductive as long as the sensing strip is continuous and to render the solid-state control device conductive when the sensing circuit is broken. Thus, the solid-state control device connects the fusible link to ground and causes the link to blow, thereby interrupting power to the electrically-energized layer.

REFERENCES:
patent: 3449551 (1969-06-01), Aisamich
patent: 3475594 (1969-10-01), Aisamich
patent: 3526753 (1970-09-01), Aisamich et al.
patent: 3760157 (1973-09-01), Newman et al.
patent: 3800121 (1974-03-01), Dean et al.
patent: 3876862 (1975-04-01), Newman et al.
patent: 3892947 (1975-07-01), Strengholt

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