Heating apparatus

Details Heating apparatus Heating apparatus

1986-11-13

1987-11-17

Goldberg, E. A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219446, 219466, H05B 376

Patent

active

047075899

ABSTRACT:
A heating unit suitable for mounting in a cooking hob includes a circular tray having a layer of thermally-insulative material disposed therein and a peripheral thermally-insulative wall, within which four infra-red lamps, each containing a tungsten filament, are supported. The tray also includes an inner thermally-insulative wall, which encloses the length of each filament. Between the peripheral and inner walls, two conventional, wire-wound heating elements are disposed. The filaments and the elements are energizable independently and/or concurrently, and series and/or parallel combinations of the filaments and the elements may be switched to provide various discrete power outputs.

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patent: 4414465 (1983-11-01), Newton et al.
patent: 4430558 (1984-02-01), McWilliams

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