Infra-red heaters

Details Infra-red heaters Infra-red heaters

H - Electricity

05

B

309/75

H05B 3/74 (2006.01) F24C 15/10 (2006.01)

Patent

CA 1266293

- 1 - IMPROVEMENTS IN OR RELATING TO INFRA-RED HEATERS ABSTRACT OF THE DISCLOSURE An infra-red heater for a glass ceramic top cooker comprises a dish containing a base layer of thermal insulating material. A peripheral wall of thermal insulat- ing material extends around the periphery of the base layer and at least one infra-red lamp extends across the base layer. A ballast device is electrically connected in series with the infra-red lamp, for example in the form of a coil of bare resistance wire, and serves to reduce inrush current to the lamp. A thermal cut-out device cuts off the supply of power to the infra-red lamp and to the ballast device if the temperature of the glass ceramic cooking surface becomes excessive. The coil of bare resistance wire preferably has an electrical resistance which is approximat- ely half the electrical resistance of the infra-red lamp at its operating temperature. The use of a ballast device enables the infra-red lamp to be used in conjunction with a cyclic energy regulator

511238

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