Cleaning and liquid contact with solids – Processes – Including melting
Patent
1995-05-17
1997-03-25
Warden, Jill
Cleaning and liquid contact with solids
Processes
Including melting
134 19, 134 21, 219462, 159 31, 202205, 203 91, B08B 704, B01D 100
Patent
active
056140290
ABSTRACT:
A method and apparatus to minimize contamination in a furnace comprising placing a case to accommodate material to be heat treated in the furnace, forming a gas flow into the case from inside of the furnace, heating the work maintained in the case to evaporate organic matters contained in the work, evacuating the vapor containing the organic matter to the outside of the furnace through an internal evacuation duct provided through the furnace, liquefying the vapor containing the organic matters under reduced pressure by introducing same into a liquefying trap and thereafter continuously collecting these liquefied organic matters.
REFERENCES:
patent: 3346417 (1967-10-01), Ehrlich
patent: 4141373 (1979-02-01), Kartanson et al.
patent: 4220480 (1980-09-01), Dwan
patent: 4415360 (1983-11-01), Leirnes
patent: 5228514 (1993-07-01), Worden et al.
patent: 5370143 (1994-12-01), Takahashi
patent: 5401321 (1995-03-01), Hugo et al.
Nakatsukasa Eiji
Takeda Masao
Yamauchi Ippei
Chaudhry Saeed
Shimadzu Mectem, Inc.
Warden Jill
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