Patents by Inventor Walter Drabik

Walter Drabik 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).

  • Direct current dynamoelectric machine commutating pole assembly
    Patent number: 4041338
    Abstract: A direct current dynamoelectric machine commutating pole assembly consisting of a commutating pole piece made up of a plurality of stacked laminations of a magnetic material having a first elongated portion and an integral second portion extending substantially normal to the elongated portion and an electrical commutating winding positioned upon the integral second portion.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: August 9, 1977
    Assignee: General Motors Corporation
    Inventors: John E. Madsen, Walter Drabik