Patents by Inventor Erkki Helanto

Erkki Helanto 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).

  • Repairable slide shutter plate and/or bottom nozzle brick and methods for the manufacture and repair of a repairable slide shutter plate and/or bottom nozzle brick
    Patent number: 8366990
    Abstract: The invention relates to a recyclable slide shutter plate (1) and/or bottom nozzle brick (2). The invention comprises the slide shutter plate (1) and/or bottom nozzle brick (2), the outer part (6) and inner part (7) of which are connected to each other in a detachable manner. In addition, the invention comprises methods for the manufacture and repair of a repairable slide shutter plate (1) and/or bottom nozzle brick (2).
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 5, 2013
    Assignee: Indref Oy
    Inventors: Erkki Helanto, Mikael Silfvenius
  • Repairable slide shutter plate and/or bottom nozzle brick and methods for the manufacture and repair of a repairable slide shutter plate and/or bottom nozzle brick
    Publication number: 20100181350
    Abstract: The invention relates to a recyclable slide shutter plate (1) and/or bottom nozzle brick (2). The invention comprises the slide shutter plate (1) and/or bottom nozzle brick (2), the outer part (6) and inner part (7) of which are connected to each other in a detachable manner. In addition, the invention comprises methods for the manufacture and repair of a repairable slide shutter plate (1) and/or bottom nozzle brick (2).
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Inventors: Erkki Helanto, Mikael Silfvenius
  • Nozzle brick with a seal
    Publication number: 20100176163
    Abstract: The invention relates to the sealing between the bottom nozzle brick (1) and shroud (5). The sealing has been made into an area on the outer surface of the bottom nozzle brick (1) and a place or formations (10) have been provided for improving the grip of the seal (3) and for holding the seal (3) in place.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 15, 2010
    Inventors: Erkki Helanto, Mikael Silfvenius
  • Apparatus for dispensing molten metal and method of manufacturing such an apparatus
    Publication number: 20090008056
    Abstract: The invention relates to a closing mechanism for dispensing molten metal from a hole-bottomed ladle, the closing mechanism containing three at least partially superimposed ceramic plates, each of the plates being provided with a hole, the three ceramic plates being cast in a ceramic mass, said mass being present on at least two sides of the ceramic plates, and the ceramic plates, the ceramic mass, and a metal shell, used as a casting mold, establishing together an integrated unit.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Inventor: Erkki Helanto