Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Reexamination Certificate
2011-08-02
2011-08-02
Lawrence, Frank M (Department: 1775)
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
C055S502000, C055S521000
Reexamination Certificate
active
07988757
ABSTRACT:
The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.
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Finnerty Carolyn J.
Gieseke Steven Scott
Iddings Douglas Lee
Juliar William M.
LaVallee Gregory
Donaldson & Company, Inc.
Lawrence Frank M
Merchant & Gould P.C.
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