Patents by Inventor Frands E. Jensen

Frands E. Jensen 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 and an apparatus for continuously purifying an oxygen-containing gas for combustible contaminants
    Patent number: 5145363
    Abstract: Combustible impurities in oxygen-containing offgases are burnt according to a method and by an apparatus of the type in which at least some of the heat of combustion is recovered by a regenerative heat exchange in two identical heat exchange zones (10, 11) containing a solid heat exchange material and separated by a combustion chamber (15). The air or gas to be purified flows through both of the heat exchange zones and by means of valves (1, 2, 3, 4). The direction of flow is changed periodically so that the two zones are alternately heated and cooled in periods of 0.1-60 minutes.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: September 8, 1992
    Assignee: Haldor Topsoe A/S
    Inventors: Kai H. Nielsen, Frands E. Jensen