H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/79
H05B 3/00 (2006.01) H05B 3/68 (2006.01) H05B 3/74 (2006.01)
Patent
CA 1093133
ABSTRACT OF THE DISCLOSURE Described herein is an electrical heating unit for smooth top cooker hobs. The unit comprises a heating element in the form of a spiral coil of bare wire which has then been helically rolled together with a strip of flexible thermal and electrical insulation such as a ceramic paper around a central core, The resulting rolled structure is some-what analogous to a "Swiss roll". This structure rests on and is supported on a base layer of thermal and electrical insulation which is desirably dish-shaped and contained an outer metal pan for earthing and mechanical protection. The rolled structure is retained in its configuration and held against the base layer by a number of spoke-like members of heat resistant and electrically insulating material extending across the top of the element.
287827
Kirby Eades Gale Baker
Micropore International Limited
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