Autoclave furnace with mechanical circulation

Details Autoclave furnace with mechanical circulation Autoclave furnace with mechanical circulation

1979-08-29

1980-11-25

Camby, John J.

Heating

Work chamber having heating means

Work chamber having gaseous material supply or removal...

13 31R, 219400, 266251, 266252, 432199, F27B 504

Patent

active

042355923

ABSTRACT:
An apparatus for treating a workpiece at elevated temperatures and pressures comprising an elongate cylindrical pressure vessel. Within the pressure vessel a hearth sits upon a pedestal. Surrounding the pedestal and the workspace immediately thereabove is an insulated furnace enclosure. A cavity near the base of the pedestal defines an impeller chamber. An impeller is positioned in the chamber and has a downwardly extending drive shaft. The impeller circulates the pressurized atmosphere. A remotely actuated gate directs the circulating atmosphere to either circulate totally within the furnace enclosure or partially within the furnace enclosure and partially along the interior wall of the pressure vessel.

REFERENCES:
patent: 4022446 (1977-05-01), Smith et al.
patent: 4131419 (1978-12-01), Isaksson
patent: 4151400 (1979-04-01), Smith et al.

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