Fume hood having a driven sash and a travel interference system

Details Fume hood having a driven sash and a travel interference system Fume hood having a driven sash and a travel interference system

1998-05-22

2000-02-15

Joyce, Harold

Ventilation

Workstation ventilator

Covered workbench chamber

49 25, B08B 1502

Patent

active

060246383

ABSTRACT:
A fume hood having a trimodal piston driven sash operator which have been improved by the addition of a travel interference system for the moveable sash to prevent accidents and the possible breakage of glassware and the like.

REFERENCES:
patent: 2909718 (1959-10-01), Lawick
patent: 4274226 (1981-06-01), Evans
patent: 4774878 (1988-10-01), Berlin et al.
patent: 4953608 (1990-09-01), Larsson
patent: 5357183 (1994-10-01), Lin

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