Registers – Coded record sensors – Particular sensor structure
Patent
1993-04-05
1994-10-11
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
414911, 250566, 31856816, 31856817, G06K 710
Patent
active
053549767
ABSTRACT:
A method for identification of a roll and for determining its diameter, in which a device for reading the identifier and the sensor for measuring the diameter are mounted to a unit moving on a vertical lead, and its position is tracked by a position sensor. The diameter of the roll is detected by a mechanical detector that turns up when it contacts the surface of the roll enabling thus an uninterrupted movement of the unit past the measurement site. After the measurement of the diameter the identification unit moves to the center of the roll, inferred from the diameter, where the device for reading the identifier reads the identification code of the roll. During the return movement of the identification unit, markings can be made on the end of the roll by an ink-jet printer.
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patent: 4730438 (1988-03-01), Koutonen
patent: 4896024 (1990-01-01), Morello et al.
patent: 4903815 (1990-02-01), Hirschfeld et al.
patent: 5085377 (1992-02-01), Rohrer et al.
patent: 5193973 (1993-03-01), Tubke
Hannikainen Jorma
Makinen Jukka
Uusitalo Mika
Hajec Donald
Valmet Paper Machinery Inc.
Young Adrian
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