Patents by Inventor Risto Pakaste

Risto Pakaste 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).

  • Method and apparatus to control a ship
    Patent number: 7442100
    Abstract: The invention relates to a method and an apparatus to control a propulsion drive. The propulsion drive comprises at least one first propeller drive, which rotates the first propeller and by which the propulsion power and/or rotating speed of the first propeller, and a second propeller drive, by which the second propeller is rotated and controlled. According to the invention the propulsion drive is controlled by a single control command, whereby it is generated from the control command a first control signal, by which the first propeller drive is controlled, and a second signal, by which the second propeller drive is controlled.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: October 28, 2008
    Assignee: ABB Oy
    Inventors: Vesa Korhonen, Risto Pakaste, Antti Ruohonen, Petri Sullström, Panu Virolainen, Petteri Ämmälä, Matti Lehti
  • Method and apparatus to control a ship
    Publication number: 20060246793
    Abstract: The invention relates to a method and an apparatus to control a propulsion drive. The propulsion drive comprises at least one first propeller drive, which rotates the first propeller and by which the propulsion power and/or rotating speed of the first propeller, and a second propeller drive, by which the second propeller is rotated and controlled. According to the invention the propulsion drive is controlled by a single control command, whereby it is generated from the control command a first control signal, by which the first propeller drive is controlled, and a second signal, by which the second propeller drive is controlled.
    Type: Application
    Filed: April 13, 2004
    Publication date: November 2, 2006
    Applicant: ABB OY
    Inventors: Vesa Korhonen, Risto Pakaste, Antti Ruohonen, Petri Sullstrom, Panu Virolainen, Petteri Ammala, Matti Lehti
  • Water turbine arrangement
    Patent number: 6641327
    Abstract: A water turbine arrangement employs a generator enclosed in a cylindrical casing. A turbine is arranged directly on the generator shaft outside the casing. The casing is arranged to a flow conduit by a support structure which has a tubular support shaft arranged to carry the cylindrical casing in the flow conduit. The cylindrical casing and the tubular support shaft and the turbine are removable from the flow conduit as a single structure through an installation hole.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: November 4, 2003
    Assignee: ABB Oy
    Inventors: Tommi Lassila, Risto Pakaste