Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 16, 2007
Patent Application Number
11420138
Date Filed
May 24, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A filter element removeably located in a housing having a central valve structure. The element has an end cap with a valve actuating portion. The valve actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrical portion. The valve actuating portion includes a plurality of thin, flat keys spaced around the annular base and projecting radially inward from the cylindrical portion and axially outward from the base. The keys engage the valve structure in the housing when the element is installed, and open up a flow passage through the housing.
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