Universal method to untwist, unravel and open up a textile yarn
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United States of America Patent
Stats
-
Dec 1, 1992
Grant Date -
N/A
app pub date -
Jul 14, 1988
filing date -
Jul 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The method involves the use of two nozzles (5 and 6) which alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symmetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.
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Cited Art Landscape
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