Belt for pulp or paper machine with sensors for detecting pressure during operation and press using same
AssigneeAndritz Inc.
InventorsJan Freudenberg, Heiko Classen
Life of this patent
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Abstract
A pressure-sensing belt for a shoe press or the like includes: a substantially cylindrical polymeric belt having a longitudinal axis, a radially inner surface, and a radially outer surface; a plurality of reinforcing cross-machine (CD) fibers extending parallel to the longitudinal axis for the length of the belt between the inner and outer surfaces; a plurality of reinforcing machine direction (MD) fibers extending circumferentially relative to the longitudinal axis between the inner and outer surfaces; and a plurality of piezoelectric fibers extending within the belt, the piezoelectric fibers each having a sensing portion and a signal-carrying portion.
Claims19
A pressure-sensing belt, comprising:
- a substantially cylindrical polymeric belt having a longitudinal axis, a radially inner surface, and a radially outer surface;
- a plurality of reinforcing cross-machine (CD) fibers extending parallel to the longitudinal axis for the length of the belt between the inner and outer surfaces;
- a plurality of reinforcing machine direction (MD) fibers extending circumferentially relative to the longitudinal axis between the inner and outer surfaces;
- and
- a plurality of piezoelectric fibers extending within the belt, the piezoelectric fibers each having a sensing portion and a signal-carrying portion.
Dependencies are inferred from the claim text.