Patents by Inventor Oyvind Larsen

Oyvind Larsen 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 for reinforcing and repairing equipment parts and components subjected to heavy abrasive wear
    Patent number: 5388317
    Abstract: The method is accomplished by having a casing affixed about the area of the equipment component or part subject to the abrasive wear. A wear-resistant concrete material is cast into the spacing between the casing and the surface of the equipment. A wear-resistant ceramic plate or steel plate can also be affixed to the surface of the equipment prior to casting the concrete in place.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: February 14, 1995
    Assignee: Elkem a/s
    Inventors: Knut H. Johansen, Oyvind Larsen, Hans H. Schelderup
  • Combined structures of ceramic materials and super concrete
    Patent number: 5135576
    Abstract: The present invention relates to combined structures of ceramic material and super concrete, which structures comprise an outer layer of ceramic material bonded to an internal structure of super concrete or an outer structure of super concrete bonded to an inner layer of ceramic material.The ceramic material is selected among any class of inorganic non-metallic products which are subjected to a temperature of 540.degree. C. and above during manufacture or use, while the super concrete comprises densely packed particles of inorganic materials embedded in a matrix based on an hydraulic cement and having a strength of at least 70 MPa.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: August 4, 1992
    Assignee: Elkem als
    Inventors: Knut Johansen, Oyvind Larsen, Terje Nilsen