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Alf I. Lindstrom

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  • Sundsbruk, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Screen panel and method of its manufacture
    • Patent number 6,216,877
    • Issue date Apr 17, 2001
    • Valmet Fibertech Aktiebolag
    • Alf Lindström
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Distributing device for paper pulp
    • Patent number 6,123,121
    • Issue date Sep 26, 2000
    • Valmet Fibertech Aktiebolag
    • Kjell Forslund
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Screening device
    • Patent number 5,271,503
    • Issue date Dec 21, 1993
    • Sunds Defibrator Industries Aktiebolag
    • Alf I. Lindstrom
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Screening device
    • Patent number 5,232,552
    • Issue date Aug 3, 1993
    • Sunds Defibrator Industries Aktiebolag
    • N. Jorgen Lundberg
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Arrangement for liquid treatment of pulp
    • Patent number 4,900,400
    • Issue date Feb 13, 1990
    • Sunds Defibrator Aktiebolag
    • Per E. W. Gudmundsson
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Apparatus for liquid treatment of pulp with vapor separation
    • Patent number 4,808,310
    • Issue date Feb 28, 1989
    • Sunds Defibrator Aktiebolag
    • Alf I. Lindstrom
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Pulp treatment apparatus having lowerable vacuum containers to faci...
    • Patent number 4,657,637
    • Issue date Apr 14, 1987
    • Sunds Defibrator Aktiebolag
    • Alf I. Lindstrom
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Apparatus for pumping of pulp
    • Patent number 4,531,892
    • Issue date Jul 30, 1985
    • Sunds Defibrator Aktiebolag
    • Lars E. Nasman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screening apparatus
    • Patent number 4,303,207
    • Issue date Dec 1, 1981
    • Sunds Defibrator Aktiebolag
    • Alf I. Lindstrom
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE