Down-flow chamber

Details Down-flow chamber Down-flow chamber

1973-11-26

1976-03-16

Nozick, Bernard

Gas separation

With recycle means

55473, 55DIG29, 98115LH, B01D 4600

Patent

active

039444058

ABSTRACT:
A down-flow chamber in which, from a filter in the ceiling of a working room, a germfree and dustfree flow of air is directed downwardly to a working face that is surrounded by walls with exhaust openings for the flow of air at the edges and in which, at the front, a transparent wall is mounted. Between the lower edge of the transparent wall and an exhaust grid in front of the working face there is a vertical opening of such a height that arms can be put through the opening to be able to carry out operations in the working room, wherein at the lower edge of the transparent wall a flexible lid preferably of smooth plastics material is mounted that is hanging down and is substantially extending to the exhaust grid. Further, a device is provided on the chamber that prevents the lid from moving outwardly from the vertical plane through the opening.

REFERENCES:
patent: 1032112 (1912-07-01), Challinor
patent: 1648994 (1927-11-01), Pitman
patent: 3151929 (1964-10-01), Potapenkd
patent: 3273323 (1966-09-01), Whitfield
patent: 3340788 (1967-09-01), Landingham
patent: 3752056 (1973-08-01), Chamberlin
patent: 3777736 (1973-12-01), Van der Waaj
patent: 3811250 (1974-05-01), Fowler, Jr.

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