Calibrated yarn tensioner, textile machine, and method for tensioning a continuously running yarn
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United States of America Patent
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N/A
Issued Date -
May 19, 2011
app pub date -
Jul 19, 2010
filing date -
Nov 16, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An adjustable yarn tensioner includes a housing, first and second opposing yarn engaging surfaces, and a tension control assembly for controlling a degree of frictional force applied by the yarn engaging surfaces to a continuously running yarn. The housing has a yarn guiding inlet for receiving the running yarn at an unwinding tension from a yarn supply source, and a yarn guiding outlet for guiding the running yarn exiting the housing at a delivery tension. The first and second yarn engaging surfaces are disposed between the inlet and the outlet of the housing. At least one of the yarn engaging surfaces is adjustably biased towards the other to frictionally engage opposite sides of the running yarn along a path of yarn travel through the housing. The tension control assembly enables a plurality of user-selected graduated tension settings within a tension range greater than 800 grams, and respective tension settings have positive or negative increments of less than 20 grams.
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