Patents by Inventor Lars O. A. Millgard

Lars O. A. Millgard 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 to measure a temperature with a peltier element
    Patent number: 5143451
    Abstract: The present invention relates to a method to determine the temperature of one or both surfaces of the two surfaces of a Peltier element. One then calculates the temperature difference (dT) between the surfaces from a known relation for the Seebeck voltage (U.sub.p) as a function of the temperature difference and the mean temperature (T.sub.i) of the element from a known relation for the temperature dependence of the internal resistance (R.sub.i) of the element. Finally, to the mean temperature (T.sub.i) one adds and from it subtracts respectively half the temperature difference (dT) between the surfaces.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: September 1, 1992
    Assignee: Affarsverket FFV
    Inventor: Lars O. A. Millgard