Filter unit for freezable liquids, particularly for a...

Details Filter unit for freezable liquids, particularly for a... Filter unit for freezable liquids, particularly for a...

2007-01-02

2007-01-02

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

C210S446000, C073S277000, C138S028000

Reexamination Certificate

active

10249807

ABSTRACT:
A filter unit for liquids undergoing freezing for a metering unit of an exhaust gas treatment unit has a housing having an outer member and a lid member. At least one filter insert is arranged in the housing. An elastically deformable casing part is provided that surrounds at least partially the filter insert. The elastically deformable casing part is a part of the lid member or of the outer member of the housing and is made of a thermoplastic synthetic material. When the liquid undergoes freezing and thawing in the filter unit, the elastically deformable casing part can compensate the volume changes caused by freezing and thawing.

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(Merriam-Webster Online Dictionary © 2005-2006 Merriam-Webster, Inc.).
English translation of DE 2,121,533.

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