Power transmission belt
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United States of America Patent
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Oct 30, 2012
Grant Date -
Jan 8, 2009
app pub date -
Jun 24, 2008
filing date -
Jul 3, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A power transmission belt comprising a polyester tensile cord having a heat shrinkage at 100° C. of less than 1% and/or a heat shrinkage at 150° C. of less than about 1.5% and/or a dimensional stability index of less than about 6%. The belt has a heat shrinkage after 24 hours at 100° C. of less than 1%. The polyester may be that sold under the trade name A360 or A363 by Performance Fibers, Inc. or equivalent polyethylene terephthalate. The tensile cord is particularly suited for use in V-belts for variable speed drives.
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