Patents by Inventor Walter J. Pasko

Walter J. Pasko 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).

  • Methods for assembling a transformer core
    Patent number: 4520556
    Abstract: Power Transformer cores are assembled by inserting a plurality of lamination inserts between the upper yoke laminations and the leg laminations in the transformer core assembly process. The arrangement allows the upper yoke to be readily removed for inserting the transformer windings over the core legs. The upper yoke is then reassembled with the inserts reinserted to complete the transformer core.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: June 4, 1985
    Assignee: General Electric Company
    Inventors: Walter J. Pasko, Jr., William H. Rathbun
  • Transformer core having charge dissipation facility
    Patent number: 4479104
    Abstract: Transformer cores are made electrically conductive during impulse voltage condition when a certain voltage is attained by a coating of semiconductor material applied to the edges or surface of the core laminations. Under ordinary operating conditions the semiconductor material provides a high resistance path to charges in the core. Upon the occurrence of a high voltage impulse, the semiconductor material rapidly equalizes the charges in the laminations and so avoids the danger of breakdown of the insulating coatings between individual laminations.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: October 23, 1984
    Assignee: General Electric Company
    Inventors: Robert H. Ettinger, Walter J. Pasko
  • Transformer core having charge dissipation facility
    Patent number: 4327349
    Abstract: Transformer cores are made electrically conductive during impulse voltage condition when a certain voltage is attained by a coating of semiconductor material applied to the edges or surface of the core laminations. Under ordinary operating conditions the semiconductor material provides a high resistance path to charges in the core. Upon the occurrence of a high voltage impulse, the semiconductor material rapidly equalizes the charges in the laminations and so avoids the danger of breakdown of the insulating coatings between individual laminations.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: April 27, 1982
    Assignee: General Electric Company
    Inventors: Robert H. Ettinger, Walter J. Pasko
  • Resonant sound attenuator for transformers
    Patent number: 4215763
    Abstract: A sound attenuator for transformers comprises a rigid plate fixedly attached to a resilient mass. The sound attenuator is attached to the transformer outer wall in the vicinity of highest sound production. The characteristics of the metal plate and the resilient mass are chosen to produce acoustical radiation out of phase with the noise emitted at the transformer wall surface.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: August 5, 1980
    Assignee: General Electric Company
    Inventor: Walter J. Pasko
  • Cooler fan noise suppressor
    Patent number: 4185688
    Abstract: A noise suppressor for a heat exchanger comprises an air duct having a larger inlet than outlet encompassing the cooling fan to provide an antiresonant space to incoming air. The noise suppressor effectively reduces the noise level emanating from supplementary air-cooled transformers mounted on electric locomotive undercarriages.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: January 29, 1980
    Assignee: General Electric Company
    Inventors: Alfons M. Wiater, Nicholas L. Paternoster, Walter J. Pasko