Inventor
LAAPOTTI JORMA
FI43 patents
⚠️ This page may combine multiple inventors who share the name “LAAPOTTI JORMA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VALMET CORP
17 patentsUS5865955AFeb 2, 1999
Method and device for enhancing the run of a paper web in a paper machine
VALMET CORP135 citations97
US5876565AMar 2, 1999
Press section with an equalizing nip for compensating for elongation of a paper web
VALMET CORP29 citations93
US5865954AFeb 2, 1999
Method for dewatering a web in a paper making machine employing an extended nip press
VALMET CORP19 citations93
US5810974ASep 22, 1998
Press section including an extended-nip press with an internally heated center roll
VALMET CORP21 citations93
US5611893AMar 18, 1997
Device for dewatering of a paper web including prepressing with extended nip shoe
VALMET CORP45 citations90
US5888354AMar 30, 1999
Transfer of a web in a paper machine from a two-felt press nip to a dryer section
VALMET CORP14 citations82
US5908536AJun 1, 1999
Method and machine for removing water from a paper or board web by pressing
VALMET CORP17 citations81
US6372090B1Apr 16, 2002
Method and apparatus for handling paper or cardboard webs
VALMET CORP12 citations74
US6368466B1Apr 9, 2002
Press section of a paper making machine employing an extended nip press
VALMET CORP8 citations74
US6103066AAug 15, 2000
Methods for transferring a web in a paper machine from a two-felt press nip to a dryer section
VALMET CORP8 citations74
US5951821ASep 14, 1999
Arrangement and method for transferring a web in a paper machine from a two-felt press nip to a dryer section
VALMET CORP11 citations74
US5868904AFeb 9, 1999
Press section employing an extended nip press with suction counter roll
VALMET CORP15 citations74
US5833810ANov 10, 1998
Press section of a paper making machine employing an extended nip press
VALMET CORP10 citations74
US5662778ASep 2, 1997
Press section with an equalizing nip in a paper machine
VALMET CORP11 citations74
US5611892AMar 18, 1997
Compact press section in a paper machine
VALMET CORP14 citations73
US6214168B1Apr 10, 2001
Method and device in a paper machine for transfer of the web from the former section to the press section
VALMET CORP7 citations71
US5792320AAug 11, 1998
Method and device for removing water from a paper or board web by pressing
VALMET CORP14 citations68
VALMET OY
11 patentsUS4976821ADec 11, 1990
Press section with separate press zones in a paper machine
VALMET OY78 citations96
US4576682AMar 18, 1986
Long-nip press for a paper making machine
VALMET OY71 citations96
US4568423AFeb 4, 1986
Apparatus with a long press zone in the press treatment of a web
VALMET OY59 citations96
US4586984AMay 6, 1986
Press section for a fibrous web
VALMET OY27 citations93
US4931143AJun 5, 1990
Press section with separate press nips in a paper machine
VALMET OY31 citations92
US4526655AJul 2, 1985
Press section with separate press nips in a paper machine
VALMET OY48 citations92
US4767501AAug 30, 1988
Method for equalizing compression pressure in a press nip of a paper machine
VALMET OY8 citations74
US4673462AJun 16, 1987
Press section of a paper machine
VALMET OY10 citations74
US4586983AMay 6, 1986
Procedure and means in the treatment by pressing of a fibre web, in particular of a paper or cardboard web
VALMET OY8 citations74
US4551205ANov 5, 1985
Press section without press suction rollers in a paper machine
VALMET OY8 citations74
US4525241AJun 25, 1985
Press section of a paper machine
VALMET OY7 citations74
VALMET PAPER MACHINERY INC
9 patentsUS5043046AAug 27, 1991
Extended nip-press
VALMET PAPER MACHINERY INC56 citations96
US4976820ADec 11, 1990
Method for hot-pressing of a web
VALMET PAPER MACHINERY INC67 citations96
US5496442AMar 5, 1996
Method and apparatus for opening a nip in an extended-nip press
VALMET PAPER MACHINERY INC24 citations93
US5240563AAug 31, 1993
Compact press section with closed draw of the web in a paper machine
VALMET PAPER MACHINERY INC31 citations92
US4919759AApr 24, 1990
Control of detachment of a paper web from a roll using heat
VALMET PAPER MACHINERY INC43 citations92
US5120400AJun 9, 1992
Heating method and device in a paper machine press section provided with a separate press
VALMET PAPER MACHINERY INC21 citations82
US5534116AJul 9, 1996
Compact press section with closed draw of the web in a paper machine
VALMET PAPER MACHINERY INC13 citations73
US5393383AFeb 28, 1995
Compact press section with closed draw of the web in a paper machine
VALMET PAPER MACHINERY INC13 citations73
US4919762AApr 24, 1990
Press section and press section/frame construction combination in a paper machine
VALMET PAPER MACHINERY INC18 citations73
METSO PAPER INC
5 patentsUS6432273B1Aug 13, 2002
Former-press section in a paper machine and method for transfer of the web from the former to the press section
METSO PAPER INC14 citations83
US6730192B1May 4, 2004
Method and machine for manufacturing printing paper or paperboard
METSO PAPER INC12 citations74
US6916404B2Jul 12, 2005
Method and apparatus for web threading in a drying section of a paper machine or similar
METSO PAPER INC7 citations72
US6533900B2Mar 18, 2003
Device in a paper machine for transfer of the web from the former section to the press section
METSO PAPER INC7 citations71
US7294236B2Nov 13, 2007
Arrangement for controlling the web in a press section of a paper or board machine
METSO PAPER INC2 citations55