Ventilation – Workstation ventilator – Having canopy exhaust hood
Patent
1997-08-04
1998-08-04
Joyce, Harold
Ventilation
Workstation ventilator
Having canopy exhaust hood
454 49, 454345, 126299D, B08B 1502
Patent
active
057885656
ABSTRACT:
A smoke exhausting device is disclosed. It includes a housing partitioned into two internal rooms. One of the rooms is a bellows for creating pressure, while the other is a guide box for guiding the smoke. The bellows has an entrance communicated with the guide box and an exit communicated with outer side of the housing. The guide box surrounds a front side, right side, left side and a bottom face of the bellows and is spaced from the bellows to define a path for air flow to smoothly pass therethrough. Each of the three sides is disposed with at least one sucking mouth, which is communicated with the entrance. A bottom of the housing is formed with a downward inclined oil guiding section having an oil outlet at bottom end. The housing can be easily disassembled from the funnel and the sucking mouths of the guide box can be disposed at different positions in different directions, so that the smoke exhausting device is applicable to different sites.
REFERENCES:
patent: 4500331 (1985-02-01), Cheng
patent: 5232152 (1993-08-01), Tsang
patent: 5372122 (1994-12-01), Hong et al.
patent: 5515840 (1996-05-01), Jang
patent: 5611331 (1997-03-01), Phillips
patent: 5720274 (1998-02-01), Brunner et al.
Boles Derek S.
Joyce Harold
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