Industrial electric heating furnaces – Resistance furnace device – With internal atmosphere control
Patent
1983-08-05
1985-09-17
Eisenzopf, Reinhard J.
Industrial electric heating furnaces
Resistance furnace device
With internal atmosphere control
373111, 373117, 373128, F27D 1100, F27D 702
Patent
active
045425132
ABSTRACT:
A stacked type heater construction particularly suitable for large HIP apparatus, having a number of heating unit assemblies stacked one on another to provide a vertical series of independently controllable heating zones, the heater including a generally cylindrical heater retaining cage constituted by a number of annular graphitic members serving as girdle frames and a number of graphitic support columns serving as vertical frames, the annular members and support columns being connected with each other through electric insulators and defining a series of divided sections around the heater retaining cage in each one of the heating zones; and a plurality of segmental graphitic heating elements supported in the respective divided sections of the heater retaining cage through electric insulators to form an independent heating circuit in each heating zone.
REFERENCES:
patent: 3470303 (1969-09-01), Lundstrom
patent: 4268708 (1981-05-01), Smith, Jr. et al.
Eisenzopf Reinhard J.
Kabushiki Kaisha Kobe Seiko Sho
Thompson Gregory D.
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