Patents by Inventor Aku Asikainen

Aku Asikainen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9290886
    Abstract: The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp or fiber suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to screening or filtering devices of the type comprising a plurality of screen wires (10) positioned at a small spacing parallel to each other, the screen wires (10) being fastened into notches in the support elements (20) by means of shrink fitting the screen wires (10) into the notches by heating the second rim area (26) of the support ring (20) after the screen wires (10) have been inserted into the notches.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: March 22, 2016
    Assignee: Aikawa Fiber Technologies Trust
    Inventors: Aku Asikainen, Christophe Hayart
  • Patent number: 8713798
    Abstract: The present invention relates to a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to a screen cylinder formed from a plurality of screen wires leaving screening slots therebetween, and circular support elements. The support elements include openings/grooves for installation of the screen wires therein, so that at least one of the support rings is thermally deformed and clamps the screen wires in the openings/grooves of the rings.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: May 6, 2014
    Assignee: Aikawa Fiber Technologies Trust
    Inventor: Aku Asikainen
  • Publication number: 20130319932
    Abstract: The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp or fiber suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to screening or filtering devices of the type comprising a plurality of screen wires (10) positioned at a small spacing parallel to each other, the screen wires (10) being fastened into notches in the support elements (20) by means of shrink fitting the screen wires (10) into the notches by heating the second rim area (26) of the support ring (20) after the screen wires (10) have been inserted into the notches.
    Type: Application
    Filed: October 5, 2011
    Publication date: December 5, 2013
    Applicant: AIKAWA FIBER TECHNOLOGIES TRUST
    Inventors: Aku Asikainen, Christophe Hayart
  • Publication number: 20130233790
    Abstract: The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention discusses in particular the manufacture of end rings (48) of a screen cylinder, i.e. rings via which the screen cylinder (10) is connected to the surrounding screen cylinder housing. The end rings (48) of the screen cylinder (10) are formed of a combination of inner non-composite polymeric material (482) acting as glue and an outer massive metal ring (484) utilized as a mold during the manufacturing stage.
    Type: Application
    Filed: November 22, 2011
    Publication date: September 12, 2013
    Applicant: AIKAWA FIBER TECHNOLOGIES TRUST
    Inventors: Aku Asikainen, Markku Luukkonen
  • Publication number: 20110042300
    Abstract: The present invention relates to a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to a screen cylinder formed from a plurality of screen wires leaving screening slots therebetween, and circular support elements. The support elements include openings/grooves for installation of the screen wires therein, so that at least one of the support rings is thermally deformed and clamps the screen wires in the openings/grooves of the rings.
    Type: Application
    Filed: November 4, 2010
    Publication date: February 24, 2011
    Applicant: ADVANCED FIBER TECHNOLOGIES (AFT) TRUST
    Inventor: Aku ASIKAINEN
  • Patent number: 7856718
    Abstract: The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to a screen cylinder formed from a plurality of screen wires leaving screening slots therebetween, and circular support elements. The support elements include openings/grooves for installation of the screen wires therein, so that at least one of the support rings is thermally deformed and clamps the screen wires in the openings/grooves of the rings.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: December 28, 2010
    Assignee: Advanced Fiber Technologies (AFT TRUST)
    Inventor: Aku Asikainen
  • Publication number: 20070251092
    Abstract: The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to a screen cylinder formed from a plurality of screen wires leaving screening slots therebetween, and circular support elements. The support elements include openings/grooves for installation of the screen wires therein, so that at least one of the support rings is thermally deformed and clamps the screen wires in the openings/grooves of the rings.
    Type: Application
    Filed: July 12, 2005
    Publication date: November 1, 2007
    Applicant: ADVANCED FIBER TECHNOLOGIES (AFT) TRUST
    Inventor: Aku Asikainen