Paper making and fiber liberation – Processes and products – With measuring – inspecting and/or testing
Reexamination Certificate
2007-09-04
2007-09-04
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Processes and products
With measuring, inspecting and/or testing
C162S263000, C162S199000, C700S127000, C700S128000, C700S129000
Reexamination Certificate
active
10474538
ABSTRACT:
The operation of a doctor assembly (16) in a paper machine is monitored. In case of a malfunction, the paper machine's (10) control devices (14-14′, 15) are used to carry out the necessary measures for eliminating the malfunction and carrying out repair and/or protective measures. In addition, detector devices (20) are arranged in connection with the doctor assembly (16), to detect a malfunction. The detector devices (20) are connected to the control devices (14, 14′, 15) of the paper machine (10), in order to carry out the said measures automatically. The invention also relates to doctor assemblies in a paper machine for implementing the method.
REFERENCES:
patent: 0 989 234 (1999-06-01), None
patent: 0989234 (2000-03-01), None
patent: WO99/25921 (1999-05-01), None
patent: WO99/46826 (1999-09-01), None
patent: WO 02/084023 (2002-04-01), None
International Preliminary Examination Report for PCT/FI02/00299, Oct. 2002.
International Search Report for PCT/FI02/00299, Jul. 2002.
Isometsä Juha
Juvakka Tuomo
Parviainen Seppo
Rata Ilkka
Saari Mika
Halpern Mark
Metso Paper Inc.
Stiennon & Stiennon
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