Patents by Inventor Bo Tommy Kage Nylen

Bo Tommy Kage Nylen 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).

  • Cast iron indefinite chill roll produced by the addition of niobium
    Patent number: 6013141
    Abstract: An indefinite chill roll alloy composition is disclosed containing carbon ranging from 2.5 to 4.0% by weight of the alloy and the carbon is present as free graphite in an amount ranging from 2-7%, preferably 3-6%, of the total carbon. The composition further includes niobium which ranges from 0.3-6.0 % and is present essentially as discrete niobium carbide particles in the alloy. The present invention further includes a chill roll shell formed from the alloy and produced by a method including the steps of providing a molten indefinite chill roll composition, adjusting the composition by adding niobium in an amount sufficient to produce a molten batch containing 0.3 to 6.0% niobium based on the total weight of said molten batch, providing a stoichiometric amount of excess carbon to form niobium carbide and casting the molten batch to form the chill roll shell.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: January 11, 2000
    Assignee: Akers International AB
    Inventors: Bo Tommy Kage Nylen, Thomas P. Adams