Protective circuit for dishwasher heating element

Electric heating – Heating devices – Combined with container – enclosure – or support for material...

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Details

219517, 337 5, 361 42, H05B 102, F24H 122

Patent

active

040442241

ABSTRACT:
A protective circuit for a heating element in a polymeric resinous tub dishwasher including an electric-type resistance heating element and a heat-sensible, dual-functioning switch. The switch is connected in the ground circuit so that current passing to ground will cause a fusible link to melt and thereby open the ground circuit. At the same time, melting of the link allows a switch in the power circuit to open, thereby eliminating any power to the heating element.

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patent: 3829807 (1974-08-01), Krueger
patent: 3864581 (1975-02-01), Satyanarayana

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