Filter cartridge for liquid media at risk for freezing,...

Details Filter cartridge for liquid media at risk for freezing,... Filter cartridge for liquid media at risk for freezing,...

2007-11-20

2007-11-20

Drodge, Joseph (Department: 1723)

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

C123S1960AB, C210S445000, C210S455000

Reexamination Certificate

active

10249808

ABSTRACT:
A filter cartridge for liquid media at risk for freezing employed in fuel cell operated vehicles and internal combustion engines has a housing and a filter lid connected to the housing for closing the housing. A filter insert is inserted into the housing and provided with at least one filter element and terminal parts. The filter element is positioned between the terminal parts. The filter insert also has at least one pretensioning part for axially pretensioning the at least one filter element. At least one reinforcement part is provided that has at least one profiled section. It is inserted into the filter element and receives at least one of torque and axial forces. This prevents twisting of the filter element and improves the sealing action and the filter function.

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Baumann, Dieter WO 01/17657 Mar. 15, 2001.
Translation of German Patent 2,121,533 obtained from file wrapper of co-pending 10/249,807.

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