Liquid Filter With Contamination-Protected Clean Side
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United States of America Patent
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Issued Date -
May 22, 2008
app pub date -
Nov 16, 2007
filing date -
Nov 16, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A liquid filter for use as an oil filter or a fuel filter, having a filter insert supported on a support tower. The support tower is essentially a cylindrical tube, with passage openings that provide a flowpath from outside the tower to a space inside the tower. A circumferential wiping lip and a circumferential seal are provided on the lower end of the filter insert. When the insert is assembled onto the support tower, the wiping lip first wipes the wall of the tower clean and the seal then seals the lower end of the tower against an unfiltered space. The seal and wiping lip may be combined as a single component.
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