Liquid purification or separation – Plural distinct separators – Filters
Reexamination Certificate
2006-09-15
2009-12-22
Griffin, Walter D (Department: 1797)
Liquid purification or separation
Plural distinct separators
Filters
C210S450000, C210S456000, C210S493100, C210S446000, C184S006240
Reexamination Certificate
active
07635429
ABSTRACT:
A compact filter element with a large filter surface area having inner and outer rings of filter material with an annular space between them, such that fluid to be filtered can be introduced into the annular space between the rings of filter material and a portion thereof can flow through the outer ring of filter material to the periphery of the filter element and another portion thereof can flow through the inner ring of filter material to the center of the filter element; at least one fluid-permeable support member for the filter material, and at least one end disk on an axial end face of the filter element affixed to the rings of filter material in a sealed manner, in which the end disk has a centrally arranged inlet opening for the fluid to be filtered and one or more radially extending distributor channels leading from the central inlet opening to at least one eccentrically arranged outlet opening which opens into the annular space between the rings of filter material to admit fluid to be filtered to the annular space.
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European Search Report dated Oct. 31, 2006 with an English translation of the pertinent portion (seven (7) pages).
Bauder Ralf
Gruber Martin
Muenkel Karlheinz
Nguyen Duc Cuong
Scherer Oliver
Anderson Denise R
Griffin Walter D
Mann & Hummel GmbH
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