Cabin air filter

Details Cabin air filter Cabin air filter

2005-07-27

2009-02-03

Smith, Duane S (Department: 1797)

Gas separation

Combined or convertible

C055S385300, C055S422000, C055S471000, C055S529000, C055S520000, C055S521000, C055S418000, C055S420000, C454S139000, C454S158000

Reexamination Certificate

active

07485168

ABSTRACT:
The invention provides an air filter assembly including an air filter extending along a central axis from a first end to a second end. The air filter decreases in width along the central axis from the first end to the second end. The air filter assembly also includes a filter housing partially enclosing the air filter and defining an aperture adjacent to the second end. One or more airstreams can be directed through the aperture to the air filter. The air filter assembly also includes at least one valve member rotatable about a rotation axis. The valve member pivots around the second end to block at least a portion of the aperture.

REFERENCES:
patent: 2335456 (1943-11-01), Seitz
patent: 3011336 (1961-12-01), Weiss
patent: 3870495 (1975-03-01), Dixson et al.
patent: 4198217 (1980-04-01), Erdmannsdorfer
patent: 6425819 (2002-07-01), Maruyama et al.
patent: 6569009 (2003-05-01), Nishikawa et al.
patent: 2002/0013128 (2002-01-01), Maruyama et al.
patent: 2063764 (1972-07-01), None
patent: 19603456 (1996-08-01), None
EP 06 07 6230, European Search Report dated Oct. 31, 2006.

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