Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 16, 2007
Patent Application Number
09712085
Date Filed
November 14, 2000
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achieving a low pressure drop are also disclosed.
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