Apparatus for the production of fixed point multifilament yarns
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United States of America Patent
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Aug 20, 1985
Grant Date -
N/A
app pub date -
Mar 25, 1982
filing date -
Aug 18, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus for the production of fixed point multifilament yarns with a whirling unit provided with a passage (15) through which the filaments to be whirled are driven and whirled together as at least one blasting nozzle injects gas into said passage. To obtain high filament feed rates and provide for the desired fixed points the blasting nozzle is in the form of a De Laval nozzle (20) whose jet is directed at an angle or perpendicularly to the longitudinal direction of the passage (15).
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