Frey V. Sundman

Person

Karhula, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for fiberizing and screening of fibrous materials
- Patent number 4,687,146
- Issue date Aug 18, 1987
- A. Ahlstrom Osakeyhtio
- Frey Sundman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for washing fibre stock
- Patent number 4,558,477
- Issue date Dec 17, 1985
- A. Ahlstrom Osakeyhtio
- Frey Sundman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for washing fibre stock
- Patent number 4,557,120
- Issue date Dec 10, 1985
- A. Ahlstrom Osakeyhtio
- Frey Sundman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Press for removing water
- Patent number 4,459,907
- Issue date Jul 17, 1984
- A. Ahlstrom Osakeyhtio
- Frey V. Sundman
- B30 - PRESSES
Information Patent Grant
Method and apparatus for pumping fiber suspensions
- Patent number 4,435,122
- Issue date Mar 6, 1984
- A. Ahlstrom Osakeyhtio
- Toivo Niskanen
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method for treatment of lignocellulosic material with chlorine
- Patent number 4,222,818
- Issue date Sep 16, 1980
- A. Ahlstroom Osakeyhtio
- Johan Gullichsen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for bleaching cellulose pulp with molecular oxygen
- Patent number 4,115,186
- Issue date Sep 19, 1978
- A. Ahlstrom Osakeyhtio
- Frey Viking Sundman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and means for drying a fibre material containing cellulose
- Patent number 4,112,587
- Issue date Sep 12, 1978
- A. Ahlstrom Osakeyhtio
- Frey Viking Sundman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Frey V. Sundman

Person

Patents Grantslast 30 patents

Apparatus for fiberizing and screening of fibrous materials

Process for washing fibre stock

Apparatus for washing fibre stock

Press for removing water

Method and apparatus for pumping fiber suspensions

Method for treatment of lignocellulosic material with chlorine

Process for bleaching cellulose pulp with molecular oxygen

Method and means for drying a fibre material containing cellulose