Patents by Inventor Knut Bratland

Knut Bratland 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).

  • Nuclear reactor
    Patent number: 4146423
    Abstract: The invention relates to a nuclear reactor having a pressure vessel of pre-stressed concrete. The reactor contains a containment vessel spaced from the pressure vessel by means of an insulation gap. The containment vessel consists of two parts having no mechanical joint between them. It is described how the insulation fluid in the insulation gap is prevented from penetrating into the interior of the reactor.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: March 27, 1979
    Assignee: Aktiebolaget Atomenergi
    Inventors: Stig R. Karker, Knut Bratland