Heating element and process for heating crucibles

Details Heating element and process for heating crucibles Heating element and process for heating crucibles

1995-05-26

1997-08-26

Walberg, Teresa J.

Electric heating

Heating devices

With heating unit structure

219541, 219420, 373118, H05B 310

Patent

active

056607520

ABSTRACT:
A heating element for heating crucibles, including a cylindrical hollow body which is divided by slits into meandrous segments. The corners between adjacent lateral surfaces of the meanders are rounded. Sectional transition areas are located in the vicinity of the upper and lower edges of the meandrous segments. Each sectional area has an outer rounded edge with a radius of curvature equal to the individual length of each meandrous section.

REFERENCES:
patent: 2640861 (1953-06-01), Kremers
patent: 2650254 (1953-08-01), Kremers
patent: 3726984 (1973-04-01), Anthony et al.
patent: 4347431 (1982-08-01), Pearce et al.
patent: 4432093 (1984-02-01), Reboux
patent: 4467185 (1984-08-01), Moritoki et al.
patent: 4503319 (1985-03-01), Moritoki et al.
patent: 4755658 (1988-07-01), Wilsey

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