Air cleaner with reduced restriction precleaner

Details Air cleaner with reduced restriction precleaner Air cleaner with reduced restriction precleaner

2005-10-25

2005-10-25

Lawrence, Frank M. (Department: 1724)

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

C055S457000, C055S459100, C055S498000, C055S504000

Reexamination Certificate

active

06958083

ABSTRACT:
An air cleaner is provided with a reduced restriction precleaner cooperating with a tangential inlet and centering and locating an annular filter element, and reducing inlet restriction.

REFERENCES:
patent: 3928007 (1975-12-01), Jackson
patent: 4950317 (1990-08-01), Dottermans
patent: 5547480 (1996-08-01), Coulonvaux
patent: 5730769 (1998-03-01), Dungs et al.
patent: 5755842 (1998-05-01), Patel et al.
patent: 6039778 (2000-03-01), Coulonvaux
patent: 6051042 (2000-04-01), Coulonvaux
patent: 6402798 (2002-06-01), Kallsen et al.

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