Electric heating – Metal heating – Of cylinders
Patent
1977-01-03
1979-03-20
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
219 1051, 219 1079, H05B 508
Patent
active
041455916
ABSTRACT:
An induction heating apparatus, which comprises: a heating element with a hollow, i.e. an interior cavity, for accommodating the material-to-be-heated therein, said heating element being made of metallic material; a ring for generating magnetic flux disposed surrounding said heating element and composed of a ring core and an electric conductive wire wound round said ring core in a coil manner and electrically insulated from the ring core; and an electric conductor disposed outside the heating element as well as the ring for generating magnetic flux and having both ends thereof electrically connected with the two ends of a desired heat generating portion of said heating element, said electric conductor being devised to cover substantially the circumference of said heating element as well as said ring for generating magnetic flux.
REFERENCES:
patent: 1362622 (1920-12-01), Hendricks
patent: 2513242 (1950-06-01), Inman
patent: 2563883 (1951-08-01), Strickland
patent: 3219786 (1965-11-01), Wenzel
patent: 3440384 (1969-04-01), Schoeder
patent: 3520980 (1970-07-01), Sterling et al.
patent: 3843858 (1974-10-01), Buell
Nitto Chemical Industry Co. Ltd.
Reynolds Bruce A.
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