Olof Kjellqvist

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Sundsvall, SE

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Patents Grantslast 30 patents

Information Patent Grant
Plug screw feeder
- Patent number 5,996,770
- Issue date Dec 7, 1999
- Sunds Defibrator Industries AB
- Olof Kjellqvist
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pair of co-operating refining elements intended for a disc refiner
- Patent number 5,950,946
- Issue date Sep 14, 1999
- Sunds Defibrator Industries AB
- OLof Kjellqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Measuring device for refiners
- Patent number 5,747,707
- Issue date May 5, 1998
- Sunds Defibrator Industries AB
- Ola Johansson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for refining fiber material
- Patent number 5,472,285
- Issue date Dec 5, 1995
- Sunds Defibrator Industries Aktiebolag
- Olof Kjellqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Refiner having oscillation reduction means
- Patent number 5,360,175
- Issue date Nov 1, 1994
- Sunds Defibrator Industries Aktiebolag
- Olof G. Kjellqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bearing system in a refiner
- Patent number 5,323,972
- Issue date Jun 28, 1994
- Sunds Defibrator Industries Aktiebolag
- Olof Kjellqvist
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE