Belt construction, rotatable pulley and combination thereof and methods of making the same
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United States of America Patent
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Jun 25, 1991
Issued Date -
N/A
app pub date -
Oct 15, 1990
filing date -
May 17, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction having opposed side edges and having an inner surface defining a plurality of longitudinally disposed and alternately spaced apart like projections and grooves for meshing with an outer peripheral ribbed surface of a rotatable pulley, each projection of the belt construction having a generally V-shaped transverse cross-sectional configuration defined by tow substantially straight side edges that converge from the respective apexes of the grooves of the belt construction that are on opposite sides of that projection to an apex of that projection, the side edges of each projection of the belt construction defining an angle of approximately 60.degree. therebetween with the thickness of the belt construction being substantially the same as the thickness of a similar belt construction wherein the angle is approximately 40.degree. and with the distance between the center lines of the grooves of the belt construction that are on opposite sides of that projection being larger than such distance of the similar belt construction.
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