Patents by Inventor Leo W. Gontkosky

Leo W. Gontkosky 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).

  • Methods and apparatus for conveying containers through an oven to produce heat-insulative foamed layers thereon
    Patent number: 6328557
    Abstract: Containers are conveyed through an oven on a conveyor to cause a foamable material on each container to foam and become a heat insulative layer. The containers are supported on respective holders of the conveyor, which prevent the containers from contacting one another. Preferably, the holders support the containers loosely, to enable the containers to wobble relative to the holders under the influence of oven air currents and conveyor vibration. The holders thus do not make contact with any given point on their respective containers for a time period that is sufficient to enable the holders to draw enough heat away from the container to adversely affect the foaming operation. The containers are conveyed in single file, along a serpentine path through the oven.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: December 11, 2001
    Assignee: Fort James Corporation
    Inventors: Grigory Grishchenko, Walter Malakhow, Arthur H. Livingston, Leo W. Gontkosky, David C. Brown, Michael A. Breining
  • Methods for conveying containers through an oven to produce heat-insulative foamed layers therethrough
    Patent number: 5993705
    Abstract: Containers are conveyed through an oven on a conveyor to cause a foamable material on each container to foam and become a heat insulative layer. The containers are supported on respective holders of the conveyor, which prevent the containers from contacting one another. Preferably, the holders support the containers loosely, to enable the containers to wobble relative to the holders under the influence of oven air currents and conveyor vibration. The holders thus do not make contact with any given point on their respective containers for a time period that is sufficient to enable the holders to draw enough heat away from the container to adversely affect the foaming operation. The containers are conveyed in single file, along a serpentine path through the oven.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: November 30, 1999
    Assignee: Fort James Corporation
    Inventors: Grigory Grishchenko, Walter Malakhow, Arthur H. Livingston, Leo W. Gontkosky, David C. Brown, Michael A. Breining