Patents by Inventor Nils Carlbaum

Nils Carlbaum 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).

  • Powder metallurgical body with compacted surface
    Patent number: 6171546
    Abstract: The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: January 9, 2001
    Assignee: Högan{umlaut over (a)}s AB
    Inventors: Owe Mårs, Nils Carlbaum
  • Method of producing mating parts
    Patent number: 5997605
    Abstract: The present invention concerns a method of producing powder-metallurgical compacted components, which during subsequent processing are split into individual parts mating in pairs, sintered and optionally heat-treated and remated. According to the process, an iron-based powder is compacted, the obtained green body is fracture-split into at least two parts, which are subsequently sintered and optionally heat-treated. The obtained sintered parts are then remated.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: December 7, 1999
    Assignee: Hoganas AB
    Inventors: Nils Carlbaum, Bjorn Johansson