Patents by Inventor Juha Ottelin

Juha Ottelin 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: 11958029
    Abstract: An agitator assembly includes an agitator body, a shaft and a blocking part. The shaft is assembled to the agitator body and extends through a lead-through in the agitator body into the vessel, when assembled for use, and includes a sealing to seal the rotatable shaft. The blocking part arranged at the agitator body and including a shaft opening through which the shaft is arranged to extend, a mating surface to mate with the shaft which, when brought together by axial movement of the blocking part, provides a seal between the blocking part and the shaft, and the mating surface arranged at an axial distance from the sealing in the lead-through, and when brought together by the axial movement of the blocking part, provides a seal between the blocking part and the agitator body, and that the blocking part provides a closed space around the lead-through in the agitator body.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 16, 2024
    Assignee: SULZER MANAGEMENT AG
    Inventor: Juha Ottelin
  • Publication number: 20210299623
    Abstract: An agitator assembly includes an agitator body, a shaft and a blocking part. The shaft is assembled to the agitator body and extends through a lead-through in the agitator body into the vessel, when assembled for use, and includes a sealing to seal the rotatable shaft. The blocking part arranged at the agitator body and including a shaft opening through which the shaft is arranged to extend, a mating surface to mate with the shaft which, when brought together by axial movement of the blocking part, provides a seal between the blocking part and the shaft, and the mating surface arranged at an axial distance from the sealing in the lead-through, and when brought together by the axial movement of the blocking part, provides a seal between the blocking part and the agitator body, and that the blocking part provides a closed space around the lead-through in the agitator body.
    Type: Application
    Filed: August 6, 2019
    Publication date: September 30, 2021
    Inventor: Juha OTTELIN
  • Patent number: 8409402
    Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: April 2, 2013
    Assignee: Sulzer Pumpen AG
    Inventor: Juha Ottelin
  • Publication number: 20120125370
    Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 24, 2012
    Applicant: Sulzer Pumpen AG
    Inventor: Juha Ottelin
  • Patent number: 8128785
    Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: March 6, 2012
    Assignee: Sulzer Pumpen AG
    Inventor: Juha Ottelin
  • Publication number: 20100132899
    Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.
    Type: Application
    Filed: August 15, 2007
    Publication date: June 3, 2010
    Inventor: Juha OTTELIN
  • Patent number: 7622018
    Abstract: An arrangement for and a method of treating pulp, and a method of modernizing a pulp tower are disclosed. The arrangement and method relate to treating pulp in connection with high-consistency pulp towers, and especially to means (36, 42) for diluting pulp arranged substantially at the level of the smallest cross-sectional area between the parting member (31) and the wall (12) of the pulp tower (10).
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: November 24, 2009
    Assignee: Sulzer Pumpen AG
    Inventor: Juha Ottelin
  • Publication number: 20060137839
    Abstract: The present invention relates to an arrangement for and a method of treating pulp, and a method of modernizing a pulp tower. The arrangement and method relate to treating pulp in connection with high-consistency pulp towers, and especially to means (36, 42) for diluting pulp arranged substantially at the level of the smallest cross-sectional area between the parting member (31) and the wall (12) of the pulp tower (10).
    Type: Application
    Filed: January 19, 2004
    Publication date: June 29, 2006
    Applicant: SULZER PUMPEN AG
    Inventor: Juha Ottelin