Spinning apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Feb 20, 2003
app pub date -
Aug 6, 2002
filing date -
Aug 18, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spinning apparatus for extruding a group of filaments by means of an annular spinneret. An annular collection chamber is arranged upstream of the spinneret, which is provided with a plurality of nozzle bores. The collection chamber has an upper inlet area and a lower annular outlet area, which is connected to the upper inlet area. In the inlet area of the collection chamber a filter device is disposed, upstream of which is a melt feed. The inlet area of the collection chamber is formed by a plurality of filter chambers, which are each provided with a melt inlet and a melt outlet. The filter device has a plurality of substantially cylindrical filter elements, which are each provided with a powdered filter medium. One of these filter elements is assigned to each filter chamber. This ensures a large filtration area and deep bed filtration of the polymer melt.
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Cited Art Landscape
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