Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Reexamination Certificate
2011-01-18
2011-01-18
Langdon, Evan H (Department: 3654)
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
C226S002000, C226S176000, C226S181000
Reexamination Certificate
active
07870986
ABSTRACT:
A lead-in roller clearance adjustment mechanism includes a pair of lead-in rollers for guiding a web with a clearance therebetween and a clearance adjustment mechanism for adjusting an amount of clearance. The lead-in roller clearance adjustment mechanism further includes motors for driving the clearance adjustment mechanism and potentiometers for detecting output positions of these motors, and adjusts the amount of clearance automatically. A clearance adjustment device includes a control device for an automated paper threading device and for clearance adjustment between the lead-in rollers, a web thickness of the web being inputted in the control device, the control device controlling the motors to set the amount of clearance at a predetermined value before threading the web into a lead-in roller unit, and to set the amount of clearance at a value corresponding to the inputted web thickness of the web after threading the web into the lead-in roller unit.
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Birch & Stewart Kolasch & Birch, LLP
Komori Corporation
Langdon Evan H
LandOfFree
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