Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929202 | Method and arrangement for feeding wood batches into a pressure grinder | Kari Harakkamäki, Simo Setala | 2005-08-16 |
| 6193180 | Arrangement in a pulp grinder | Jouko Hautala, Heikki Liimatainen, Kari Parssinen, Simo Setala, Olli Tuovinen | 2001-02-27 |
| 6109550 | Arrangement for providing continuous grinding in a pulp grinder | Kari Parssinen, Jouko Hautala, Olli Tuovinen, Heikki Liimatainen, Simo Setala | 2000-08-29 |
| 6095443 | Arrangement for feeding wood in a pulp grinder | Jouko Hautala, Heikki Liimatainen, Kari Parssinen, Simo Setala, Olli Tuovinen | 2000-08-01 |
| 4666093 | Frame construction for a pressure grinding machine of press type | Toivo Lajunen, Juhani Ahonen | 1987-05-19 |
| 4664323 | Method of and a feeding device for feeding a wood batch into a pressure grinder | Juhani Ahonen, Raimo Pessa | 1987-05-12 |
| 4333613 | Apparatus for continuously grinding wood under pressure and continuously discharging groundwood | — | 1982-06-08 |
| 4327870 | Apparatus for continuously grinding wood under pressure and continuously discharging groundwood | — | 1982-05-04 |
| 4305590 | Sealing arrangement for a shutter of a pressure grinder | Eero Hanhilahti, Raimo Pessa, Matti Aario | 1981-12-15 |
| 4274600 | Method of and a grinder for grinding wood under pressure | — | 1981-06-23 |
| 4270703 | Method of and a grinder for discharging groundwood stock when grinding wood under pressure | — | 1981-06-02 |
| 4207139 | Method for producing groundwood pulp | Jonas A. I. Lindahl | 1980-06-10 |