Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Reexamination Certificate
2007-12-25
2007-12-25
Smith, Duane (Department: 1724)
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
C055S510000, C055S521000
Reexamination Certificate
active
10965684
ABSTRACT:
A generally cylindrical filter element incorporating nonsymmetrical or asymmetrical V-pleated media. The V-pleated media provides increased filter media per given filter volume, extended filter life, and a smaller filter for equivalent filter life. A smaller filter is generally beneficial for some applications such as aircraft, due to its lower weight. Various features of the filter include asymmetric variable pleat heights applied to a cylindrical or obround filter; defined pleat spacing applied to a variable pleat height element; optimal pleat density; and optimal shape of inlet and outlet.
REFERENCES:
patent: 3448862 (1969-06-01), Kudlaty
patent: 4154688 (1979-05-01), Pall
patent: 4640779 (1987-02-01), Taki et al.
patent: 4655921 (1987-04-01), Fujimoto
patent: 4673503 (1987-06-01), Fujimoto
patent: 4738778 (1988-04-01), Taki et al.
patent: 4746432 (1988-05-01), Taki et al.
patent: 5043000 (1991-08-01), Kadoya
patent: 5071555 (1991-12-01), Enbom
patent: 5120296 (1992-06-01), Yamaguchi et al.
patent: 5236480 (1993-08-01), Svensson et al.
patent: 5306321 (1994-04-01), Osendorf
patent: 5320657 (1994-06-01), Adams
patent: 5427597 (1995-06-01), Osendorf
patent: 5512076 (1996-04-01), Gibson
patent: 6312489 (2001-11-01), Ernst et al.
patent: 6409785 (2002-06-01), Smithies et al.
patent: 6585793 (2003-07-01), Richerson et al.
patent: 6598749 (2003-07-01), Paul et al.
patent: 6602328 (2003-08-01), Doi et al.
patent: 6709495 (2004-03-01), Storer
patent: 2002/0083836 (2002-07-01), Doi et al.
patent: 2003/0110130 (2003-06-01), Pelletier
patent: 2005/0139544 (2005-06-01), Choi
patent: 1 204 629 (1965-11-01), None
Adamek Daniel Eric
Gustafson Michael Jon
Mills Jarren B.
Schnieder Kirk A.
Welch Marilyn D.
Clemente Robert A
Donaldson & Company, Inc.
Merchant & Gould P.C.
Smith Duane
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