Patents by Inventor Tuomo V. J. Kivisto

Tuomo V. J. Kivisto 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).

  • Automatic charging member
    Patent number: 5151006
    Abstract: The invention relates to an automatic charging member for positioning of heavy loads, particularly sheet-like objects as anodes and cathodes into electrolysis tanks. According to the invention, between the loading member (1) and the gripping device (8) there is attached a control frame (3) so that on the ground of the information received from the position detectors (9) the positioning of the gripping device (8) is carried out by moving the control frame (3).
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: September 29, 1992
    Assignee: Outokumpu Oy
    Inventors: Tom E. Marttila, Tuomo V. J. Kivisto, Pentti V. Ahola
  • Aerator for industrial and domestic wastewaters
    Patent number: 4925598
    Abstract: The invention relates to the aerating of domestic and industrial wastewaters by means of an aerator placed on the bottom of the oxidation pond. Particularly the invention relates to the structure of the stator of the aerator. The stator comprises the stator shell structure (4), the stator ducts (7) directed outwards with respect to the outer edge of the shell structure, legs (5) attached to the shell and extending to the bottom of the pond, as well as triangular blade members (6) fastened to the said legs.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: May 15, 1990
    Assignee: Outokumpu Oy
    Inventors: Tuomo V. J. Kivisto, Tauno T. Koho, Arvo E. Andersson
  • Apparatus for leading off froth from the tank of a flotation cell
    Patent number: 4566968
    Abstract: An apparatus for leading off from a flotation cell tank in froth that is produced is composed of at least two launders (3) positioned inside the tank (1), their points of support being located close to the tank wall, and of a drain pipe (10) connected to the tubular lower part (9) of the launder.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: January 28, 1986
    Assignee: Outokumpu Oy
    Inventors: Tuomo V. J. Kivisto, Kai B. Fallenius, Timo U. Niitti
  • Method for the stiffening and straightening of starting sheets
    Patent number: 4413495
    Abstract: In the method of the invention starting sheets are stiffened and straightened by pressing or rolling upon the sheet various stiffening patterns projecting from the plane of the sheet, the starting sheet being rolled or pressed from both sides by means of a roller or a press the opposite surfaces of which have the patterns, while the starting sheet is suspended by its lugs.An apparatus is disclosed having conveyors for conveying the starting sheets and a roller or press for embossing stiffening patterns upon the starting sheets, the roller or press having two parallel rollers or press plates, provided with regularly alternating depressions and corresponding protrusions, at least one of the press plates being movable in the lateral direction, the roller or press being mounted below the suspension conveyor for the starting plates in such a manner that a starting sheet suspended by its lugs from the suspension conveyor passes through the roller or press.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: November 8, 1983
    Assignee: Outokumpu Oy
    Inventors: Eino J. Peuhkurinen, Erkki J. Linnanketo, Kari M. U. Farm, Tuomo V. J. Kivisto, Tauno T. Koho, Seppo T. Kinnunen, Martti P. Taskinen