Patents by Inventor Jukka NUMMELA

Jukka NUMMELA 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).

  • Sealing apparatus having a plurality of sealing elements arranged around a center opening into a ring configuration
    Patent number: 9676503
    Abstract: The invention relates to an apparatus. In order to achieve efficient sealing, the apparatus includes a sealing with a plurality of sealing elements arranged generally in a ring configuration around a center opening. Each sealing element includes a sealing surface facing the center opening. At least one chamber is included for receiving sections of the sealing elements. An inlet to a fluid source provides the at least one chamber with fluid in order to generate an overpressure acting on the sections of the sealing elements received in the at least one chamber, and for pressing and moving the sealing surfaces of the sealing elements towards the center opening.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: June 13, 2017
    Assignee: NEXTROM OY
    Inventors: Jukka Nummela, Risto Widerholm, Tatu Kutvonen
  • APPARATUS
    Publication number: 20130298501
    Abstract: The invention relates to an apparatus. In order to achieve efficient sealing, the apparatus includes a sealing with a plurality of sealing elements arranged generally in a ring configuration around a center opening. Each sealing element includes a sealing surface facing the center opening. At least one chamber is included for receiving sections of the sealing elements. An inlet to a fluid source provides the at least one chamber with fluid in order to generate an overpressure acting on the sections of the sealing elements received in the at least one chamber, and for pressing and moving the sealing surfaces of the sealing elements towards the center opening.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 14, 2013
    Inventors: Jukka NUMMELA, Risto WIDERHOLM, Tatu KUTVONEN