Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Reexamination Certificate
2007-10-16
2007-10-16
Smith, Duane (Department: 1724)
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
C055S385300, C055S498000, C055S502000, C055S529000, C055SDIG031, C123S19800E
Reexamination Certificate
active
10970971
ABSTRACT:
An air cleaner that includes a first housing portion having a non-circular attachment fit. A second housing portion is attached to the first housing portion to define a filter space. A filter element includes a non-circular filter aperture that defines a perimeter that is completely defined by four equal arc length segments. The filter aperture is engageable with the attachment fit. The attachment fit and the filter aperture are sized to provide substantially equal contact pressure around the perimeter of the filter aperture when engaged with one another.
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Bohne Derron
Campbell Clian
Honisch Michael J.
McDonald John Paul
Briggs & Stratton Corporation
Clemente Robert A
Michael & Best & Friedrich LLP
Smith Duane
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