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US 5,699,606 AGranted
Method of manufacturing a radiant electric heater
AssigneeCeramaspeed Limited
InventorJoseph Anthony McWilliams
Life of this patent
Estimating the term…
Abstract
An electrical heating element for a radiant electric heater takes the form of an elongate electrically conductive strip for partial embedding edgewise in a base of thermal and electrical insulation material. The strip is composed of an elongate continuous portion and an elongate discontinuous portion integral with the continuous portion. The discontinuous portion is intended for embedding in the base and is provided with a plurality of discontinuities so that in operation of the heater current flow in the discontinuous portion is reduced or eliminated.
Claims18
A method of manufacturing a radiant electric heater comprising:
- providing a base of compacted microporous thermal and electrical insulation material;
- providing a heating element in the form of an elongate electrically conductive strip, the strip being of uniform thickness and composed of an elongate continuous portion and an elongate discontinuous portion integral and coplanar with the continuous portion, the discontinuous portion being provided with a plurality of discontinuities therein such that in operation of the heater current flow in the discontinuous portion is reduced or eliminated;
- and
- pressing the heating element edgewise into the base so as to at least partially embed the discontinuous portion of the heating element in the base with the insulation material entering the discontinuities to thereby enhance securement of the heating element to the base.
1 more element
Dependencies are inferred from the claim text.