Patents by Inventor Martin Obersberger

Martin Obersberger 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).

  • Fluid cooler
    Patent number: 4821797
    Abstract: A fluid cooler includes an inner shell concentrically mounted within the outer shell, both shells having corresponding circumferential contours. Radially extending heat exchange fins are provided at least on the outer surface of the inner shell and on the inner surface of the outer shell and have a inner surface of the outer shell having a height equal to half of the difference between the inner diameter of the outer and the outer diameter of the inner shells.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: April 18, 1989
    Assignee: Norsk Hydro a.s.
    Inventors: Hans Allgauer, Harald Kremnitz, Martin Obersberger
  • Fluid cooler
    Patent number: 4778002
    Abstract: A fluid cooler includes an inner shell concentrically mounted within an outer shell, both shells having corresponding circumferential contours. Radially extending heat exchange fins are provided at least on the outer surface of the inner shell and on the inner surface of the outer shell and have a height equal to half of the difference between the inner diameter of the outer and the outer diameter of the inner shell.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: October 18, 1988
    Assignee: Norsk Hydro a.s
    Inventors: Hans Allgauer, Harald Kremnitz, Martin Obersberger