Patents by Inventor Joseph N. Sweeney

Joseph N. Sweeney 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).

  • Subminiature audio transformer
    Patent number: 4315232
    Abstract: A subminiature transformer is provided. The transformer comprises a bobbin having a slit extending therethrough. The transformer core is formed of a plurality of gapless laminations each passed into the bobbin through a slit.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: February 9, 1982
    Inventors: Henry Spoldi, Joseph N. Sweeney