Patents by Inventor Mikael Hannus

Mikael Hannus 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).

  • Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process
    Patent number: 9567360
    Abstract: The present invention relates to a process tor the production of precipitated lignin from black liquor wherein the process comprises the steps of providing a black liquor stream treating the black liquor at an increased temperature and precipitating the lignin from the heat treated black liquor. The present invention further relates to precipitated lignin produced according to the process and use of the precipitated lignin produced.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: February 14, 2017
    Assignee: Stora Enso OYJ
    Inventors: Mikael Hannus, Maria Björk, Niklas Garoff, Ingrid Englund
  • PROCESS FOR PRODUCTION OF PRECIPITATED LIGNIN FROM BLACK LIQUOR AND PRECIPITATED LIGNIN PRODUCED BY THE PROCESS
    Publication number: 20130131326
    Abstract: The present invention relates to a process tor the production of precipitated lignin from black liquor wherein the process comprises the steps of providing a black liquor stream treating the black liquor at an increased temperature and precipitating the lignin from the heat treated black liquor. The present invention further relates to precipitated lignin produced according to the process and use of the precipitated lignin produced.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 23, 2013
    Applicant: STORA ENSO OYJ
    Inventors: Mikael Hannus, Maria Björk, Niklas Garoff, Ingrid Englund
  • METHOD AND ARRANGEMENT FOR REMOVING DUST IN CONNECTION WITH A SHEET CUTTER OF A PULP DRYING MACHINE OR EQUIVALENT
    Publication number: 20010017071
    Abstract: Method and arrangement for removing dust in connection with the sheet cutter of a pulp drying machine or equivalent in which a pulp web is slit in a slitter unit into longitudinal component webs. The longitudinal component webs are further cut in a cutter unit in the cross direction into sheets. Dust formed in connection with the slitter unit and/or the cutter unit in the sheet cutter is removed by at least two dust removing devices placed in the vicinity of the slitter unit and/or the cutter unit.
    Type: Application
    Filed: April 30, 1999
    Publication date: August 30, 2001
    Inventors: JENS PETTER ENKVIST, JAN LINDSTROM, LARS HAKAN MIKAEL HANNUS, RAMI AALTONEN, JUHA LEIMU
  • Steam box including a suction zone in an area of a web adjacent to edge cutter devices
    Patent number: 6254731
    Abstract: A steam box including a steam chamber for blowing steam toward a paper or board web that runs on support of a wire and a suction zone arranged at the trailing side of the steam chamber of the steam box for providing suction of steam mist discharged by the steam chamber. The suction zone extends to sides of the steam chamber so as to extend to the lateral areas of the web. The steam box includes edge cutter devices arranged in the area of effect of the suction zone extending to the lateral areas of the web, so as to remove the fibers and fillers produced during the edge cutting and prevent soiling of the edges of the steam box.
    Type: Grant
    Filed: December 26, 1997
    Date of Patent: July 3, 2001
    Assignee: Valmet Corporation
    Inventors: Ari Puurtinen, Mika Viertola, Jan Lindström, Lars Håkan Mikael Hannus