H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/101, 309/45
H05B 3/44 (2006.01) F24H 3/00 (2006.01)
Patent
CA 1166675
ABSTRACT OF THE DISCLOSURE An electric heater for use in an electric stove or the like, includes an insulating tube such as a quartz tube, and a coiled resistance wire enclosed in the tube. The individual turns of the coil have a non-circular shape and are displaced from adjacent turns by spirally twisting the coil about the axis of the tube. This arrangement decreases the time re- quired for heating the wire to a specified temperature and improves the efficiency of heat radiation. The resistance wire can also be made of iron-chrome-aluminium alloy to lengthen its life.
375811
Hayashi Takeshi
Ichihara Wataru
Kubo Yoshinobu
Nishida Isamu
Kirby Eades Gale Baker
Matsushita Electric Industrial Co. Ltd.
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