Appeal 2006-2824
Application 10/441,513
includes applying multiple overlapping strips from a single nozzle to form a
spiral inner layer and an overlying spiral outer layer, with the result that the
sagging of the layers can thus be reduced or eliminated (Br. 4-5). Claims 1,
14, and 24 are illustrative of the invention and are reproduced below:
1. A process for forming an endless belt for a press, comprising the
steps of:
providing an elongate cylindrical core having a longitudinal axis;
rotating the core about the longitudinal axis;
providing a nozzle movable along a nozzle path that is substantially
parallel to and above the core longitudinal axis, the nozzle having at least an
upstream outlet and a downstream outlet, the nozzle outlets being
longitudinally offset a distance from each other; and
applying multiple strips of a polymeric material to the core through
the nozzle outlets as the nozzle moves along the nozzle path such that the
downstream strip forms an overlapping spiral inner layer and the upstream
strip forms an overlapping spiral outer layer that overlies the inner layer.
14. A process for forming a belt for a press, comprising the steps of:
providing an elongate cylindrical core having a longitudinal axis;
rotating the core about the longitudinal axis;
applying a downstream strip of a polymeric material to the core such
that the downstream strip forms an overlapping spiral inner layer; and then
applying an upstream strip of the polymeric material over the inner
layer such that the upstream strip forms an overlapping spiral outer layer that
overlies the inner layers;
wherein the upstream strip is applied sufficiently proximate in time to
the application of the downstream strip that the downstream strip is molten
2
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