Fume hood

Details Fume hood Fume hood

1995-12-15

1998-08-25

Joyce, Harold

Ventilation

Workstation ventilator

Covered workbench chamber

B08B 1502

Patent

active

057977909

ABSTRACT:
A compact fume hood arrangement includes a bypass channel mounted to a top panel of the fume hood which effectively extends a front open face of the fume hood upwardly providing an air path through the bypass channel which provides sufficient air flow to prevent disadvantageous air currents due to excessive face velocity. A vertical sash can be used such that raising of the sash proportionally closes the bypass channel while opening the open face of the fume hood.

REFERENCES:
patent: 2819666 (1958-01-01), McNeil et al.
patent: 3111077 (1963-11-01), Cortright
patent: 3318227 (1967-05-01), Nelson et al.
patent: 3340788 (1967-09-01), Landingham et al.
patent: 4023473 (1977-05-01), Russell
patent: 4142458 (1979-03-01), Duym
patent: 4249463 (1981-02-01), Hornby
patent: 4377969 (1983-03-01), Nelson
patent: 4856420 (1989-08-01), Poblete et al.
"Laboratory Fume Hoods", Catalog No. FH-51, Kewaunee Scientific Equipment Corporation, pp. 1, 5, and 77.

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