Patents by Inventor Olov Skarg.ang.rd

Olov Skarg.ang.rd 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).

  • Method of manufacturing compacted graphite cast iron
    Patent number: 5639420
    Abstract: A method of manufacturing compacted graphite cast iron, in which graphite modifying alloying agents, in the form of a so-called treatment alloy, are added to low-sulphurous molten cast iron. The treatment alloy is added to the molten iron by being sprayed into a jet of the molten iron as the latter is being discharged from a casting furnace. A dosed amount of treated iron is maintained for a predetermined period of time inside a casting box for homogenization and slag flotation, whereupon it is poured into a casting mold.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: June 17, 1997
    Assignee: AB Volvo
    Inventors: Bertil Nils Gunnar Sander, Berndt Ingar Resne Gyllensten, Lars-Eric Thorsten Uhr, Per Inge Dahlof, Olov Skarg.ang.rd, Sven-Eric Dahlberg