Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Reexamination Certificate
2006-02-02
2009-02-17
Hopkins, Robert A (Department: 1797)
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
C055S346000, C055S348000, C055S385300, C055S482000, C055S492000, C055S502000, C055S521000
Reexamination Certificate
active
07491254
ABSTRACT:
A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided.
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Declaration of Wayne R.W. Bishop and Exhibits A-D (7 pages).
Complaint filed Oct. 1, 2007, Civil Action No. 07-ev-04136-MJD-SRN, Federal Court for the District of the Minnesota, Exhibits A-F.
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Bishop Wayne R. W.
Finnerty Carolyn J.
Gieseke Steven Scott
Krisko William Joseph
Nelson David W.
Donaldson & Company, Inc.
Hopkins Robert A
Merchant & Gould P.C.
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