Patents by Inventor Olavi Tulkki

Olavi Tulkki 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).

  • Patent number: 6805235
    Abstract: The invention relates to a device for moving the belt of a belt conveyor used in continuously operated belt sintering between the drawing drum and the folding drum, and for aligning the belt sintering belt to be moved by the belt conveyor with respect to the sintering device. According to the invention, in order to rotate the drawing drum (2) of the belt conveyor used in belt sintering, in the immediate vicinity of the other end of the drawing drum, there is installed an actuator device (5, 6, 8) of the belt conveyor, where in at least one rotary element (5) that is installed co-centrically with the axis (15) of the drawing drum and cogged on the outer circumference, there is connected at least one actuator element (6) that is essentially smaller in diameter and cogged on the outer circumference, which actuator element (6) can be made to rotate by means of an actuating motor (8) belonging to the actuator device.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: October 19, 2004
    Assignee: Outokumpu Oyj
    Inventor: Olavi Tulkki
  • Patent number: 6767206
    Abstract: The invention relates to an arrangement and method for heating gases in a gas circulation duct in connection with continuously operated sintering. In the sintering furnace, hot gas is fed in from above the belt in order to sinter the material located on the belt, and part of the gas circulation duct is formed as a burning zone, a burner ring, where the gas is heated. The burner ring comprises at least one burner unit directed inwardly from the circumference of the gas circulation duct.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: July 27, 2004
    Assignee: Outokumpu Oyj
    Inventors: Pekka Niemela, Eero Väänänen, Jouko Pirttimaa, Olavi Tulkki
  • Patent number: 6764305
    Abstract: The invention relates to a device for supporting a conveyor belt used in the continuously operated thermal treatment, i.e. sintering, of a material bed. According to the invention, in the top part of the frame structure of the belt conveyor, there is installed at least one support element, whereby an essentially smooth slide surface can be obtained for the conveyor belt, and in the interior of the support element there is made a channel system in order to enable the flow-through of the intermediate agent fed into the support element.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: July 20, 2004
    Assignee: OUTOKUMPU Oyj
    Inventors: Eero Väänänen, Martti Jankkila, Olavi Tulkki
  • Publication number: 20040074740
    Abstract: The invention relates to a device for moving the belt of a belt conveyor used in continuously operated belt sintering between the drawing drum and the folding drum, and for aligning the belt sintering belt to be moved by the belt conveyor with respect to the sintering device. According to the invention, in order to rotate the drawing drum (2) of the belt conveyor used in belt sintering, in the immediate vicinity of the other end of the drawing drum, there is installed an actuator device (5, 6, 8) of the belt conveyor, where in at least one rotary element (5) that is installed co-centrically with the axis (15) of the drawing drum and cogged on the outer circumference, there is connected at least one actuator element (6) that is essentially smaller in diameter and cogged on the outer circumference, which actuator element (6) can be made to rotate by means of an actuating motor (8) belonging to the actuator device.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 22, 2004
    Inventor: Olavi Tulkki
  • Publication number: 20030183492
    Abstract: The invention relates to a device for supporting a conveyor belt used in the continuously operated thermal treatment, i.e. sintering, of a material bed. According to the invention, in the top part of the frame structure (17) of the belt conveyor (14), there is installed at least one support element (1, 18), whereby an essentially smooth slide surface can be obtained for the conveyor belt (11), and in the interior of the support element (1, 18) there is made a channel system (8) in order to enable the flow-through of the intermediate agent fed into the support element.
    Type: Application
    Filed: February 24, 2003
    Publication date: October 2, 2003
    Inventors: Eero Vaananen, Martti Jankkila, Olavi Tulkki
  • Publication number: 20030165789
    Abstract: The invention relates to an arrangement and method for heating gases in a gas circulation duct in connection with continuously operated sintering. In the sintering furnace, hot gas is fed in from above the belt in order to sinter the material located on the belt, and part of the gas circulation duct is formed as a burning zone, a burner ring, where the gas is heated. The burner ring comprises at least one burner unit directed inwardly from the circumference of the gas circulation duct.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 4, 2003
    Inventors: Pekka Niemela, Eero Vaananen, Jouko Pirttimaa, Olavi Tulkki