Portable air filtration device

Details Portable air filtration device Portable air filtration device

1989-03-20

1990-02-13

Hart, Charles

Gas separation

With remote fan or pump and unconfined flow to separator

55316, 553852, 55471, 55472, 55494, 55516, B01D 5304

Patent

active

049003461

ABSTRACT:
A portable filter device provides a substantial mass of particulated charcoal distributed in a horizontally orientated lenticular configuration across a horizontal orifice to provide substantially uniform filtration properties over the orifice area. The filter device is releasably assemblable to allow change of particulated charcoal for replacement or modification and optionally to provide for use of a second supplementally associated mechanical filter. A casement defines an internal plenum that carries a squirrel-cage type fan that draws air through the filter, acts as an equalizing reservoir, and provides space for optional sorbefacient materials.

REFERENCES:
patent: 2557432 (1951-06-01), Holstedt
patent: 2764251 (1956-09-01), Jessop
patent: 3080695 (1963-03-01), Hay
patent: 3654747 (1972-04-01), Remick
patent: 4252547 (1981-02-01), Johnson
patent: 4514197 (1985-04-01), Armbruster
patent: 4526592 (1985-07-01), Armbruster

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