Air filtering apparatus

Details Air filtering apparatus Air filtering apparatus

1991-10-08

1992-05-19

Hart, Charles

Gas separation

With means securing or retaining separating media

Fastening means pierces or penetrates media

55497, 55505, 55521, 55525, 55DIG31, 55DIG42, B01D 4600

Patent

active

051144484

ABSTRACT:
A high reliability, non-blocking air filter for filtering large volumes of low pressure air from equipment to be maintained free of dust and impurities while being ventilated during operation is disclosed. The filter media is mounted in a frame having a U-shaped cross section construction, which is attached over an air intake opening of the piece of equipment. The filter media includes a planar base surface and a plurality of projections. The tops of the projections define a surface above said planar base surface for supporting free-flowing articles so as such that these articles do not obstruct the air flow through the air intake filter.

REFERENCES:
patent: 2175903 (1939-10-01), Lichtman
patent: 3017698 (1962-01-01), Hambrecht et al.
patent: 3019854 (1962-02-01), O'Bryant
patent: 3149942 (1964-09-01), Finch
patent: 4088463 (1978-05-01), Smith
patent: 4178161 (1979-12-01), Rudner et al.

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