Process for making hermetically sealed filter units
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United States of America Patent
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-
Nov 18, 1997
Grant Date -
N/A
app pub date -
Jun 20, 1996
filing date -
Apr 26, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for the manufacture of hermetically sealed filter units and a product made thereby. The process comprises aligning a porous filter element between two housing parts and a thermoplastic skirt that overlaps the edge of at least one housing part to shield the edge of the filter element disposed adjacent to the skirt, pressing the housing parts together and then injection molding a thermoplastic overmold band around the outer portions of the housing parts to form a hermetic seal at the edge of the filter element.
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