Inventor
HEIKKILAE PERTTI
US20 patents
⚠️ This page may combine multiple inventors who share the name “HEIKKILAE PERTTI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VALMET PAPER MACHINERY INC
7 patentsUS5471766ADec 5, 1995
Method in contact-free air-drying of a material web as well as a nozzle-blow-box and a pulp dryer that make use of the method
VALMET PAPER MACHINERY INC58 citations94
US5163236ANov 17, 1992
Method and apparatus for drying webs
VALMET PAPER MACHINERY INC25 citations92
US4936025AJun 26, 1990
Combination infrared and airborne drying of a web
VALMET PAPER MACHINERY INC39 citations92
US5495678AMar 5, 1996
Drying module and dryer sections that make use of same, in particular for a high-speed paper machine
VALMET PAPER MACHINERY INC38 citations91
US5199623AApr 6, 1993
Device for supporting, turning and spreading of a web
VALMET PAPER MACHINERY INC36 citations88
US5299364AApr 5, 1994
Arrangement and method for treatment of webs using nozzles with negative pressure
VALMET PAPER MACHINERY INC22 citations86
US4899463AFeb 13, 1990
Method and device in a cylinder dryer of a paper machine
VALMET PAPER MACHINERY INC18 citations72
VALMET CORP
6 patentsUS6070655AJun 6, 2000
Heat exchanger
VALMET CORP26 citations92
US5771602AJun 30, 1998
Method and device for drying a coating on a paper web or equivalent
VALMET CORP16 citations72
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
US5653041AAug 5, 1997
Drying method and drying module as well as dryer sections that make use of same, in particular for a high-speed paper machine
VALMET CORP15 citations71
US5961784AOct 5, 1999
Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower
VALMET CORP5 citations55
US5666740ASep 16, 1997
Hood for a wire part and for a press section
VALMET CORP3 citations55
METSO PAPER INC
6 patentsUS6598315B1Jul 29, 2003
Nozzle arrangement in airborne web-drying and method for improving heat transfer in airborne web-drying
METSO PAPER INC18 citations82
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
US6372094B1Apr 16, 2002
Pulp drying line and method for drying pulp
METSO PAPER INC9 citations71
US6511015B1Jan 28, 2003
Method and apparatus for stabilizing the running of a web in a paper machine or a like
METSO PAPER INC11 citations68
US6942760B1Sep 13, 2005
Arrangement in the wet end of a paper machine
METSO PAPER INC4 citations62
US7993491B2Aug 9, 2011
End part of an air dryer, air dryer, method in the end part of an air dryer and use of fan
METSO PAPER INC1 citations47