RV

Raimo Virta

VM Valmet Paper Machinery: 7 patents #8 of 217Top 4%
VA Valmet Aktiebolag: 5 patents #32 of 408Top 8%
MP Metso Paper: 4 patents #71 of 678Top 15%
VO Valmet Oy: 3 patents #15 of 127Top 15%
Overall (All Time): #242,312 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
6418639 Method and device in the dryer section of a paper/board machine Pekka Saarikivi, Juha Kaihovirta, Kari Juppi, Nenad Milosavljevic 2002-07-16
6358366 System and method for threading a moist web in a pulp dryer or the like from one section to the following section Pertti Hongisto, Paavo Sairanen, Time Tammekas 2002-03-19
6317999 Sealing nozzle arranged in a blow box used in the drying section of a paper machine Reijo Jokinen, Hannu Kokkala 2001-11-20
6247247 Blow box for the drying section of a papermaking machine, method for sealing a pocket with a blow box in the drying section of a papermaking machine, and arrangement in a papermaking machine Seppo Yomaa, Matti Kurki, Reijo Jokinen, Hannu Kokkala 2001-06-19
6105277 Process and system for promoting complete web support within the dryer section of a papermachine Kari Lindberg, Pekka Saarikivi 2000-08-22
5996244 Roll for a paper machine, in particular for a paper drying device, and dryer group for a paper machine Pekka Saarikivi 1999-12-07
5728930 Method and device for measuring the permeability of a drying wire to air 1998-03-17
5720852 Method and device for stabilizing the running of a paper web in connection with a paper guide roll Vesa Vuorinen 1998-02-24
5635034 Suction roll or cylinder and method for removing air from a suction roll or cylinder Olavi Viitanen 1997-06-03
5535527 Method and arrangement in a multi-cylinder dryer of a paper machine Seppo Rantanen 1996-07-16
5524360 Method and device for ventilating pocket spaces in a multi-cylinder dryer of a paper machine Vesa Vuorinen 1996-06-11
5509215 Method and device for stabilization of a paper web in a group of cylinders in a drying section of a paper machine Vesa Koiranen, Vesa Vuorinen 1996-04-23
5152076 Method and device in a paper machine Vesa Vuorinen 1992-10-06
5019213 Method and apparatus in the drying section of a paper making machine for speeding the threading of a paper or paperboard web Vesa Vuorinen, Reijo Ruottu 1991-05-28
4953297 Method of and device for pocket ventilation in the drying section of a paper machine, in particular for high-speed paper machines Pekka Eskelinen, Pentti Raatikainen, Markku Karlsson 1990-09-04
4905380 Method and apparatus in a paper machine single-wire drying group Pekka Eskelinen, Vesa Vuorinen 1990-03-06
4892622 Method for resisting formation of undulations in a fiber/water mixture during forming of a paper web in a paper-making machine Raimo Malkki, Paavo Jaatinen, Timo Haverinen, Pekka Eskelinen, Juhani Jokinen +2 more 1990-01-09
4756183 Method and apparatus for measuring air permeability of a wall-like or sheet-like element Raimo Rajala 1988-07-12
4628618 Apparatus in a drying section of a paper machine Martti Salmivaara 1986-12-16