Patents by Inventor Roman J. Patz

Roman J. Patz 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).

  • Core for an electromagnet having shading coils cast in situ
    Patent number: 4030056
    Abstract: A laminated core for an A.C. electromagnet comprising its own die for the casting of shading coils therein. Retention grooves formed across the laminations and retention slots formed in side plates provide a continuous path for the injection of molten metal therein, thereby producing a closed-loop shading coil when solidified. Also disclosed is a method for making a core having a shading coil cast in situ.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: June 14, 1977
    Assignee: Cutler-Hammer, Inc.
    Inventor: Roman J. Patz