Patents by Inventor Bo L. A. Othzen

Bo L. A. Othzen 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).

  • Insulation material and method of applying the same to a component in a combustion engine
    Patent number: 4862865
    Abstract: A thermal insulating material for combustion engine components, which are subjected to combustion gases, e.g. pistons. The insulation consists of a metal layer sintered under low pressure so as to have a porosity of about 25-50% and which is bonded to the engine component by casting of the component onto the porous sintered layer. The exposed or wear-receiving surface of the sintered layer is machined, which not only achieves accurate dimensioning but also closes the pores of the surface.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: September 5, 1989
    Assignee: AB Volvo
    Inventors: Lars M. G. Dahlen, Lars E. Larsson, Bo L. A. Othzen