Ventilation – Workstation ventilator – Covered workbench chamber
Reexamination Certificate
2005-07-19
2008-01-15
McAllister, Steven (Department: 3749)
Ventilation
Workstation ventilator
Covered workbench chamber
Reexamination Certificate
active
07318771
ABSTRACT:
The present invention is a fume hood capable of exhausting contaminant, having an air pipe in a sash and a suction slot corresponding to the air pipe deposed at the front rim of the bottom surface to obtain an air curtain, where contaminant is efficiently prevented from leakage and energy is saved.
REFERENCES:
patent: 3256799 (1966-06-01), Sterling et al.
patent: 3318227 (1967-05-01), Nelson et al.
patent: 4100847 (1978-07-01), Norton
patent: 5215497 (1993-06-01), Drees
patent: 6428408 (2002-08-01), Bell et al.
Chang Cheng-Ping
Chen Chun-Wan
Chen Hung-Ta
Chen Yu-Kang
Huang Rong Fung
Institute of Occupational Safety and Health, Council of Labor Af
Kosanovic Helena
McAllister Steven
Troxell Law Office PLLC
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