Heated chamber including an open wall with a gas curtain

Details Heated chamber including an open wall with a gas curtain Heated chamber including an open wall with a gas curtain

1998-11-20

1999-10-12

Leung, Philip H.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

432 64, 219385, 219386, A21B 100

Patent

active

059650486

ABSTRACT:
An atmosphere controlled workpiece heating chamber includes a spaced apart multiple gas flow means combination which avoids contamination of the atmosphere within the chamber from ambient atmosphere such as air. In one form, the chamber includes a gas diffuser as one flow means, and a heating means, both of which are readily removable, and easily and accurately replaceable.

REFERENCES:
patent: 3170681 (1965-02-01), Davies
patent: 3575398 (1971-04-01), Lincoln
patent: 3713401 (1973-01-01), McClurkin
patent: 3957326 (1976-05-01), Molitor
patent: 4572944 (1986-02-01), Ballard
patent: 4793283 (1988-12-01), Saekozy
patent: 4898319 (1990-02-01), Williams
patent: 5708755 (1998-01-01), Gronet et al.
patent: 5870526 (1999-02-01), Aschner et al.

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