Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1998-03-19
2000-08-08
Smith, Duane S.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
553853, 55482, 55498, 55502, 55503, 55504, B01D 4624
Patent
active
060996064
ABSTRACT:
An air filter element includes structure for supporting a secondary air filter element mounted within it, such as a safety element. In certain arrangements, the air filter element includes a media pack having first and second ends and defining an open filter interior. A first open end cap is positioned on the media pack first end. A second closed end cap is positioned on the media pack second end. The spacer construction has attachment structure and positioning structure. The attachment structure secures the spacer arrangement within the open filter interior, and the positioning structure extends from the attachment structure. In one illustrated embodiment, the spacer construction includes an insert embedded within the second closed end cap. In one illustration, the insert has a circular disk with feet and a centrally extending post with a fin arrangement.
REFERENCES:
patent: 3584439 (1971-06-01), Gronholz
patent: 3616618 (1971-11-01), Gronholz et al.
patent: 3672130 (1972-06-01), Sullivan et al.
patent: 4006000 (1977-02-01), Tortorici et al.
patent: 4020783 (1977-05-01), Anderson et al.
patent: 4135899 (1979-01-01), Gauer
patent: 4261710 (1981-04-01), Sullivan
patent: 4278455 (1981-07-01), Nardi
patent: 4482368 (1984-11-01), Roberts
patent: 4595401 (1986-06-01), Witchell
patent: 4950317 (1990-08-01), Dottermans
patent: 5112372 (1992-05-01), Boekermann et al.
patent: 5120337 (1992-06-01), Benzler et al.
patent: 5484466 (1996-01-01), Brown et al.
patent: 5730769 (1998-03-01), Dungs et al.
patent: 5755842 (1998-05-01), Patel et al.
patent: 5800581 (1998-09-01), Gielink et al.
Declaration of Thomas G. Miller (with attached Exhibits A and B).
Albitz Andrew L.
Bartels Dolan D.
Crenshaw Bruce R.
Miller Thomas G.
Donaldson & Company, Inc.
Smith Duane S.
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