Patents by Inventor Klas G. Stjernberg

Klas G. Stjernberg 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).

  • Body with superhard coating
    Patent number: 4734339
    Abstract: The present invention relates to a compound body consisting of a substrate with a surface coating of one or more dense, finegrained diamond layers, where the diamond grains are directly bonded to each other. Extreme hardness makes the compound body suitable for wear parts- and tools applications. Very good heat conductivity and an extremely high electrical isolation resistance makes the compound body extremely useful to lead away heat in electronic components.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: March 29, 1988
    Assignee: Santrade Limited
    Inventors: Herbert Schachner, Heinz Tippmann, Benno Lux, Klas G. Stjernberg, Anders G. Thelin
  • Method for making a composite body coated with one or more layers of inorganic materials including CVD diamond
    Patent number: 4707384
    Abstract: A chemical vapor deposition method for the production of a composite body with one or more polycrystalline diamond layers, essentially free of intercrystalline binder phase, on a substrate of one of: (a) metalbonded hardmaterial compound; (b) ceramic material; or (c) a metal or an alloy, whereby the heated substrate is contacted with a gaseous mixture of hydrocarbon or hydrogen, which mixture has been activated by passing it over a tantalum heater heated to a temperature of 1500.degree.-2500.degree. C.Also disclosed is the use of the compound body in tools subjected to mechanical operations.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: November 17, 1987
    Assignee: Santrade Limited
    Inventors: Herbert Schachner, Heinz Tippmann, Benno Lux, Klas G. Stjernberg, Anders G. Thelin