| 6719145 |
Arrangement and rotor for screening of pulp |
Pasi Harkonen, Pekka Karppinen, Ari Pelkiö, Kader Rahkonen, Riitta Rahkonen |
2004-04-13 |
| RE36297 |
Method and apparatus for treating a fiber suspension |
Jukka Heino, Erkki Savolainen |
1999-09-14 |
| 5641402 |
Multistage disc filter |
Ari Pelkiö |
1997-06-24 |
| 5267655 |
Method and apparatus for treating a gas containing aqueous fiber suspension |
Jukka Heino, Kaj Henricson, Pasi Immonen, Erikki Savolainen, Pentti Vikio |
1993-12-07 |
| 5264138 |
Method and apparatus for treating a fiber suspension |
Jukka Heino, Erkki Savolainen |
1993-11-23 |
| 5240621 |
Method and apparatus for improving flotation separation |
Jorma Elonen, Harry Erlund, Kaj Henricson, Pasi Immonen, Heikki Manninen +3 more |
1993-08-31 |
| 5227058 |
Apparatus for removing liquid from the thickeners, filters, and washers |
Pasi Immonen |
1993-07-13 |
| 5160434 |
Filter cylinder with drainage surface |
Jukka Heino |
1992-11-03 |
| 5073264 |
Apparatus for treating fiber suspension |
Pasi Immonen |
1991-12-17 |
| 4943372 |
Method and apparatus of discharging a disc filter |
— |
1990-07-24 |
| 4687583 |
Procedure for filtering lime sludge meant to be regenerated to lime |
Matti Lankinen, Holger Engdahl, Jukka Niskanen, Markku Kosonen |
1987-08-18 |
| 4678574 |
Disc filter |
Tapani Niiranen, Erkki Savolainen |
1987-07-07 |
| 4354934 |
Filter press |
— |
1982-10-19 |
| 4292123 |
Procedure and apparatus for cellulose washing |
Tuomo Lintunen |
1981-09-29 |