Patents by Inventor Hubert Deml

Hubert Deml 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).

  • Transformer with copper windings, liquid insulation material and supply depot containing solid copper deactivator to prevent dissolution of the copper
    Patent number: 4472700
    Abstract: Transformer, including copper windings, electrical insulation for the windings, the electrical insulation being formed of sections of solid and liquid insulating material, the liquid insulating material serving as a cooling liquid containing a chemical compound from the class of N,N'-dihydrazides as a copper deactivator in a cooling liquid flow, and a supply depot disposed in the cooling liquid flow containing the copper deactivator as a solid material.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: September 18, 1984
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang von Gentzkow, Hubert Deml, Karl Soldner