Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Reexamination Certificate
2006-01-31
2006-01-31
Matecki, Kathy (Department: 3654)
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
C226S200000, C226S029000, C073S159000, C700S122000, C428S152000, C318S006000
Reexamination Certificate
active
06991144
ABSTRACT:
A method of dynamically controlling the tension of a moving web material. A web material is transported with an apparatus. A modulus-of-elasticity-analog value is determined for the web material. The modulus-of-elasticity-analog value is used to adjust an instantaneous gain of the web control system. The instantaneous gain is used in the control calculation of the control system. The control calculation is used to control the speed of a web handling drive. Controlling the speed of at least one appropriate web handling drive controls the tension of the web.
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Dooley Matthew D.
Franz Michael J.
Schwamberger Brian C.
Langdon Evan H.
Mattheis David K.
Meyer Peter D.
The Procter & Gamble & Company
Weirich David M.
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