Patents Represented by Attorney R. P. Lenhart
  • Patent number: 4459576
    Abstract: A toroidal transformer is provided with an inner winding electrostatic shield formed by bringing together two conductive annular cups having a generally U-shaped radial cross section. The widths and radii of the sidewalls of these cups are dimensioned such that one of the sidewalls of the first cup forms a conductive interference fit with the corresponding sidewall of the second cup, while the other sidewall of the first cup is separated from the corresponding sidewall of the second cup by a gap, which prevents the shield from becoming a shorted turn. The shield formed by these two cups is placed around a wound core and a second winding is wound over the shield to form a transformer.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 10, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: David A. Fox, Donal E. Baker