Patents by Inventor Gerhardus J. Hulsink

Gerhardus J. Hulsink 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 making a transformer winding in the form of a disc winding provided with axial channels
    Patent number: 5167063
    Abstract: A winding for a transformer or choke coil wherein successive turns are arranged onto each other in radial direction. To provide for optimal cooling conditions axially extending cooling channels are provided by placing spacers between the successive radial turns of the winding. To provide for a limited volume, the turns which are adjacent to each other in the axial direction are located directly onto each other without interspacing.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: December 1, 1992
    Assignee: Smit Transformatoren B.V.
    Inventor: Gerhardus J. Hulsink