Air treatment unit providing a filtration system for removing et

Details Air treatment unit providing a filtration system for removing et Air treatment unit providing a filtration system for removing et

1985-10-18

1986-09-16

Hart, Charles

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55279, 55316, B01D 5302, G01N 2178

Patent

active

046120262

ABSTRACT:
An Air Treatment Unit providing a filtration system for removing ethylene oxide which comprises a blower unit for air intake (1), a top orifice (2) with a coil spring backing (3) attached to and having access to the front face of a coarse wire and fibrous filter element (4) behind which is a filter media made up of granular activated carbon impregnated with various metallic oxides of copper, silver and chrome in various proportions designed exclusively for the selective removal of ethylene oxide gases (5) and a bottom face with fine wire and a fibrous filter element (6) with an orifice to allow clean air out (8) these said faces being attached mechanically to enclose the filtering media in a leak-proof frame (7) with a circular glass viewer (9) to which is attached a gel which is color sensitive to ETO concentration of 0.3 ppm indicating replacement of the filter media (5).

REFERENCES:
patent: 3258312 (1966-06-01), Olson
patent: 3406501 (1968-10-01), Watkins
patent: 4272480 (1981-06-01), Stull et al.
patent: 4364756 (1982-12-01), Clarke et al.
patent: 4382440 (1983-05-01), Kapp
patent: 4492151 (1985-01-01), Mattei
patent: 4553992 (1985-11-01), Boissinot et al.

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