Appeal 2006-2634
Application 10/294,537
exterior belt back surface at which a textile reinforcement is positioned to
lend lateral stability and minimized noise generation when the belt is run
against a device such as a pulley or tensioner impinging against the exterior
belt back surface, comprising:
a) providing a belt building drum with a given outside diameter;
b) providing a seamless tubular radially stretchable textile material the
unstreteched outer diameter of which is less than or equal to the
outside diameter of the building drum;
c) forming on the building drum a belt sleeve core by:
wrapping a first rubber layer about the building drum;
helically winding a strain-resisting tensile cord about the first
rubber layer;
wrapping a second rubber layer over the helically wound tensile
cord to form the belt sleeve core;
d) radially stretching the seamless tubular textile material to an outside
diameter exceeding the outside diameter of the building drum;
e) positioning the seamless tubular textile material which has been pre-
stretched, over the drum and in contact with one of said rubber layers
forming a portion of the belt sleeve core, to form a vulcanizable belt
sleeve;
f) subjecting the belt sleeve to heat and pressure to vulcanize the same.
The Examiner relies upon the following references as evidence of
obviousness:
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Last modified: November 3, 2007