Air filter

Details Air filter Air filter

1983-01-07

1984-10-16

Lacey, David L.

Gas separation

With separating media bypass or system gas pressure relief

Valved bypass means

55318, 55413, 55472, 55485, 55486, 55492, B01D 5000

Patent

active

044772700

ABSTRACT:
An air filter providing a filter chamber comprising an open core cage of activated charcoal wrapped by a first polyurethane foam pad of a predetermined density, all of which is covered by a second polyurethane filter blanket of a different density. The center bore of the chamber being unobstructed and having communication at one end with an air blower that evacuates the core, drawing ambient air therein through 360 degrees and exhausting filtered air therefrom.

REFERENCES:
patent: 2562839 (1951-07-01), Winston
patent: 3144315 (1964-08-01), Hunn
patent: 3577710 (1971-05-01), Feldman
patent: 4073631 (1978-02-01), Brady et al.
patent: 4339250 (1982-07-01), Thut

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