Inventor
NYBERG PETRI
FI16 patents
⚠️ This page may combine multiple inventors who share the name “NYBERG PETRI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VALMET CORP
6 patentsUS5825653AOct 20, 1998
Method for overall regulation of a former of a paper machine or equivalent
VALMET CORP72 citations95
US5812404ASep 22, 1998
Method for overall regulation of the headbox of a paper machine or equivalent
VALMET CORP48 citations92
US6284100B1Sep 4, 2001
Method and apparatus for controlling a headbox in a paper machine
VALMET CORP19 citations87
US5545293AAug 13, 1996
Method and device in the regulation of a headbox
VALMET CORP18 citations81
US5688372ANov 18, 1997
Method and device in the regulation of a headbox
VALMET CORP9 citations73
US5569360AOct 29, 1996
Multi-layer headbox
VALMET CORP3 citations62
METSO PAPER INC
5 patentsUS6432275B1Aug 13, 2002
Headbox of a paper/board machine by whose means the basis weight of the web can be regulated
METSO PAPER INC15 citations82
US6544387B2Apr 8, 2003
Multi-layer headbox for a paper/board machine
METSO PAPER INC9 citations72
US6551459B1Apr 22, 2003
Regulation system for the short circulation and headbox of a paper machine or equivalent
METSO PAPER INC7 citations68
US6491792B2Dec 10, 2002
Apparatus for controlling a headbox in a paper machine
METSO PAPER INC7 citations68
US6740198B2May 25, 2004
Method and arrangement for mixing pulp components in the manufacture of paper
METSO PAPER INC10 citations66
VALMET PAPER MACHINERY INC
3 patentsUS5490905AFeb 13, 1996
Method in the regulation of a multi-layer headbox and a multi-layer headbox
VALMET PAPER MACHINERY INC26 citations92
US5397438AMar 14, 1995
Method and device for reduction and equalization of transverse shrinkage of paper in single-wire draw in a drying section
VALMET PAPER MACHINERY INC49 citations91
US5674363AOct 7, 1997
Method and device in the regulation of a headbox
VALMET PAPER MACHINERY INC14 citations73