Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Reexamination Certificate
2005-01-27
2008-05-27
Smith, Duane (Department: 1797)
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
C055S497000, C055S502000, C055S494000, C055S510000, C055S529000, C055S442000, C055S444000, C055S416000, C055S410000, C055S413000, C055S414000, C096S380000, C096S383000, C096S384000, C096S385000, C096S386000, C096S387000, C181S230000
Reexamination Certificate
active
07377954
ABSTRACT:
An air filtration cartridge has annular filter media having a hollow interior and extending axially between first and second distally opposite end caps. The first end cap is an outlet end cap having flow straightening structure integrally formed therewith and spanning the hollow interior. The second end cap is a closed end cap having an interior face having quarter wave resonators formed by blind holes therein.
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Cheng C. Raymond
Gunderson Larry T.
Holm Christopher E.
Quabili Zakir Ahmad
Schmitz Kelly R.
Andrus Sceales Starke & Sawall LLP
Fleetguard Inc.
Pham Minh-Chau T.
Schelkopf J. Bruce
Smith Duane
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