Ring-shaped filter element including an annular end plate and a foamed elastic sealing ring
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United States of America Patent
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Jul 1, 2003
Grant Date -
N/A
app pub date -
Nov 9, 2000
filing date -
Mar 26, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ring-shaped filter element through which material can flow radially. Web material as is provided filter material which is folded in a zigzag shape and sealingly connected at its longitudinal sides relative to a ring-shaped end plate. The end plate is formed of a first area made of a first material, and extends peripherally and not covering a radial inner and/or outer edge area. A second area forms this edge area and is designed for a seal-tight placement onto a connecting part, of a second material. The ring-shaped filter element contains a second area having a second material which is foamed simultaneously onto the web material of the first material already connected fixedly with the web material.
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