Patents by Inventor Iver S. Bertelsen

Iver S. Bertelsen 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).

  • Radiator valve
    Patent number: 4611786
    Abstract: The invention relates to a radiator valve assembly which includes the well known adjustable throttle valve and seat therefor in combination with an insert in the downstream side thereof which has a fixed throttle passage extending axially thereof. The throttle passage has a cross section which converges on the inlet side thereof and is sufficiently long to minimize the developing of turbulence in the flow stream.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: September 16, 1986
    Assignee: Danfoss A/S
    Inventors: Hans Jorgensen, Iver S. Bertelsen, Hans-Erik K. Jensen