C - Chemistry – Metallurgy – 30 – B
Patent
C - Chemistry, Metallurgy
30
B
C30B 31/16 (2006.01) F27D 19/00 (2006.01)
Patent
CA 2142829
2142829 9404723 PCTABS00030 An "atmospheric" processing furnace (1) is insulated from the naturally-occurring variations in ambient pressure. In one embodiment a gas valve (9) in an exhaust duct (7b) from a sealed scavenger box (7) is controlled by a feedback loop including a control system (10) and a pressure sensor (11).
Fallon Martin
Ridout & Maybee Llp
LandOfFree
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