Low resistance air filter device

Details Low resistance air filter device Low resistance air filter device

2005-02-09

2009-12-29

Smith, Duane (Department: 1797)

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

C055S498000, C055S521000, C055S410000

Reexamination Certificate

active

07637972

ABSTRACT:
A low resistance air filter device comprises a tubular case (2) for containing a filtering element (3) fixed to a lower opening (9) of the case (2). The tubular case has an upper opening (10), with outlet means (8) provided with an air outflow opening (7). The outlet means (8), at the outflow opening (7), are provided with a tubular body protruding toward an inside tubular case (2) and connect in flow communication the inside volume of the tubular case with the outflow opening (7).

REFERENCES:
patent: 4695299 (1987-09-01), Spadaro et al.
patent: 5238474 (1993-08-01), Kahlbaugh et al.
patent: 5669949 (1997-09-01), Dudrey et al.
patent: 6638330 (2003-10-01), Bergami
patent: 1413347 (2004-04-01), None
patent: 1094617 (1967-12-01), None
patent: WO 01/43852 (2001-06-01), None
patent: WO 02/066812 (2002-08-01), None
International Search Report, (PCT/IB2005/000320).

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