Patents by Inventor Sami Palokangas

Sami Palokangas 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).

  • Publication number: 20130300065
    Abstract: The present disclosure relates to sealing the propeller shaft of a ship using a sealing having a group of lip seals arranged consecutively in a direction of the propeller shaft so that a seal chamber is created between adjacent lip seals. The pressure of the first seal chamber on the propeller side can be close to the pressure of the surrounding water at the propeller shaft level, and the pressure of the second seal chamber furthest from the propeller can be adjusted to a fixed value that is lower than the pressure of the first seal chamber. The pressure of a third chamber located between the first chamber and the second chamber can be adjustable by pressure regulation devices to a value between the pressure values of the first and the second chambers by adjusting the pressure loss caused by the flow of a liquid medium.
    Type: Application
    Filed: December 2, 2010
    Publication date: November 14, 2013
    Applicant: ABB OY
    Inventor: Sami Palokangas
  • Patent number: 6752347
    Abstract: In reeling up of a paper web, a continuous paper web is reeled around a reeling core/reeling cores into successive machine reels or customer rolls. The actual control system controlling the reeling up process is supplemented with a substantially separate, model-based learning fault diagnostics. The fault diagnostics in a diagnostic state detects the malfunctions in components critical in view of the operation of the reel-up by monitoring measuring, control and actuating variables of the reel-up and by comparing them with a model formed during a learning state. In a fault tolerance state the fault diagnostics actively affects the measuring, control and actuating variables to maintain the function of the reel-up, and improve operating reliability.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: June 22, 2004
    Assignee: Metso Paper, Inc.
    Inventors: Petteri Lannes, Sami Palokangas, Jussi Alanen
  • Publication number: 20030141404
    Abstract: In reeling up of a paper web, a continuous paper web is reeled around a reeling core/reeling cores into successive machine reels or customer rolls. The actual control system controlling the reeling up process is supplemented with a substantially separate, model-based learning fault diagnostics. The fault diagnostics in a diagnostic state detects the malfunctions in components critical in view of the operation of the reel-up by monitoring measuring, control and actuating variables of the reel-up and by comparing them with a model formed during a learning state. In a fault tolerance state the fault diagnostics actively affects the measuring, control and actuating variables to maintain the function of the reel-up, and improve operating reliability.
    Type: Application
    Filed: February 12, 2003
    Publication date: July 31, 2003
    Inventors: Petteri Lannes, Sami Palokangas, Jussi Alanen