Patents by Inventor Heinz Ubl

Heinz Ubl 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).

  • Device and method for utilization of heat due to losses in transformers or choke coils which are internally cooled by a liquid
    Patent number: 4456899
    Abstract: Method and device of utilizing, through heat exchanger or heat pump provided in addition to a normal cooling system, heat due to energy loss in a coil device, such as a transformer or a choke coil having a liquid-cooled interior, which includes throttling the normal cooling system so as to set a difference between the temperature of the interior liquid coolant, at a location under a casing cover of the coil device, and a maximum permissible temperature for a normal useful life of insulation for the coil winding so that the temperature of the inner coolant is lower when the coil device is under full load than when it is under partial load.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: June 26, 1984
    Assignee: Transformatoren Union AG
    Inventors: Wolfgang Matthes, Heinz Ubl