Patents by Inventor Bjorn O. A. Pettersson

Bjorn O. A. Pettersson 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).

  • Process for fabrication of sintered metal components
    Patent number: 5466414
    Abstract: A process for fabrication of sintered metal components having improved mechanical, physical and wear-resistent properties.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: November 14, 1995
    Assignee: TecSyn, Inc.
    Inventor: Bjorn O. A. Pettersson
  • Powdered metal mixture composition
    Patent number: 5346529
    Abstract: Powdered metal composition consisting essentially of carbon, copper, solid lubricant particles, carbide-enriched alloys and iron and process for sintering to yield alloyed components exhibiting improved mechanical, physical and wear-resistent properties.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: September 13, 1994
    Assignee: Tecsyn PMP, Inc.
    Inventor: Bjorn O. A. Pettersson
  • Apparatus for calibrating tubular articles
    Patent number: 4382373
    Abstract: An apparatus for calibration of tubular articles, especially cylinder linings for internal combustion engines, manufactured through isostatic compression of pulverulent metallic materials, comprises piston means for effecting an axial displacement between the tubular article and a mandrel which it surrounds during the calibration. Preferably, the tubular article is first subjected to a rather modest radial inwardly directed pressure which is increased after an axial relative movement between the mandrel and the tubular article has taken place.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: May 10, 1983
    Assignee: AB Carbox
    Inventor: Bjorn O. A. Pettersson
  • Method for calibrating tubular articles
    Patent number: 4339935
    Abstract: An apparatus for calibration of tubular articles, especially cylinder linings for internal combustion engines, manufactured through isostatic compression of pulverulent metallic materials, comprises piston means for effecting an axial displacement between the tubular article and a mandrel which it surrounds during the calibration. Preferably, the tubular article is first subjected to a rather modest radial inwardly directed pressure which is increased after an axial relative movement between the mandrel and the tubular article has taken place.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: July 20, 1982
    Assignee: AB Carbox
    Inventor: Bjorn O. A. Pettersson