Patents by Inventor Per Solheim

Per Solheim 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 for preventing formation of calcareous deposits on seawater battery cathodes
    Patent number: 5158838
    Abstract: The invention relates to a method for preventing or greatly reducing formation of calcareous deposits on an inert electron conducting cathode in a primary cell (1) which is based on reaction between oxygen, water and a metal anode when it is submerged in seawater and connected to a load (2). The problem of deterioration of the cell (1) caused by calcareous depositions on the cell cathode is solved by monitoring the cell voltage and/or criteria leading to changes in the cell voltage and reducing or disconnecting the load (2) if the cell voltage falls below a certain level (VL) and reconnecting the load (2) after a certain time or when the voltage rises above a certain second level (VH).
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: October 27, 1992
    Inventors: Oddvar Bjordal, Arne H. Hansen, Oistein Hasvold, Roy Johnsen, Per Solheim, Nils J. Storkersen, Sverre Oen