Ventilation – Workstation ventilator – Covered workbench chamber
Patent
1991-05-24
1993-01-05
Joyce, Harold
Ventilation
Workstation ventilator
Covered workbench chamber
454253, 454347, B08B 1520
Patent
active
051765667
ABSTRACT:
Methods and apparatus for controlling the flow of fluid around an object which include means to periodically vary or fluctuate the direction, speed or magnitude of the fluid flow. The fluid flow is particularly controlled to control eddy formation. The fluid is preferably a gas or vapor.
REFERENCES:
patent: 3815485 (1974-06-01), Beusink et al.
patent: 3948154 (1976-04-01), Asakai et al.
patent: 4742763 (1988-05-01), Holter et al.
Joyce Harold
The United States of America as represented by the Secretary of
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