Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2006-11-30
2010-10-12
DeCady, Albert (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S197000
Reexamination Certificate
active
07813829
ABSTRACT:
A sheet manufacturing method is provided including the steps of (i) extruding a sheet material to a sheet form; (2) forming a desired sheet by performing a predetermined processing involving dimensional change in a transverse direction of a sheet; (3) measuring a thickness distribution in the transverse direction of the sheet before completion and after completion of the predetermined processing; (4) calculating a manipulated variable corresponding to each measuring position based on a thickness distribution measurement value in the transverse direction of the sheet after completion of the processing; and (5) controlling the thickness of the sheet. In the calculation of the manipulated variable of step (4), a correspondence position in the transverse direction of the sheet after completion of the processing is determined, and a thickness control is performed based on the determined correspondence position in the transverse direction of the sheet.
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DeCady Albert
RatnerPrestia
Sivanesan Sivalingam
Toray Industries Inc.
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