Patents by Inventor Bertil Isak Hollinger

Bertil Isak Hollinger 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).

  • Compacted graphite cast iron alloy and its method of making
    Patent number: 6746550
    Abstract: A process for producing a compacted graphite iron (CGI) article, comprising the steps of: (a) providing a CGI base iron having a composition comprising, in weight percentages, about 3.2 to 3.8 total C, 2.8 to 4.0 Si and the balance at least Fe and incidental impurities; (b) treating, controlling and casting the alloy in a manner known per se; (c) allowing the cast component to cool in the mould to a temperature of at least 775° C.; (d) cleaning the casting in a manner known per se and machining the casting to produce a finished article.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: June 8, 2004
    Assignee: SinterCast AB
    Inventor: Bertil Isak Hollinger