Fume extractor

Details Fume extractor Fume extractor

1993-01-29

1993-12-07

Hart, Charles

Gas separation

With gas flow effecting means

Impeller within or proximate to space encompassed by...

55472, 55498, 55501, 55508, 55DIG36, 126299D, B01D 4602

Patent

active

052680126

ABSTRACT:
A fume extractor comprises a housing and a predetermined number of suction devices. The housing has a bottom board provided with fume sucking ports. Each of the suction devices comprises a motor provided with a rotating shaft upon which a wind impeller is mounted in such a manner that the wind impeller is corresponding in location to the fume sucking ports of the housing. Each of the suction devices is further provided with a filtration member having a top segment and a bottom segment which are fastened respectively to a top board and a bottom board of the housing. The filtration member has an inner wall that is located at a distance from the wind impeller. The housing is further provided with a plurality of exhausting holes.

REFERENCES:
patent: 3308610 (1967-03-01), Springer et al.
patent: 4411675 (1983-10-01), de Castella
patent: 4500331 (1985-02-01), Cheng
patent: 5120331 (1992-06-01), Landy

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