Patents by Inventor Ivar I. Primdahl, deceased

Ivar I. Primdahl, deceased 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 of measuring high temperatures and instrument therefore
    Patent number: 7083329
    Abstract: A method for measurement of high temperatures of a process stream by means of a thermocouple arranged in a thermowell. The thermowell is at least partly covered by a layer of a catalytic material which is active in at least one endothermic reaction. The thermowell is installed in a reactor by inserting the thermowell through a hole penetrating the reactor wall so that the tip of the thermowell is in contact with the process stream. The invention is typically used where the reaction is a reforming reaction and the reactor is an autothermal reformer fed with a hydrocarbon stream and an oxygen containing stream.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: August 1, 2006
    Assignee: Haldor Topsoe A/S
    Inventors: Helen Rose Primdahl, legal representative, Tommy Hansen, Ivar I. Primdahl, deceased