Patents by Inventor Josef Fiegel

Josef Fiegel 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).

  • Patent number: 4017776
    Abstract: The novel reversible shaded-pole motor has a stator lamination which is symmetrical about the horizontal and vertical magnetic axes. The lamination shape corresponds to two E's placed against each other. In the center, it has a circular hole for receiving the squirrel-cage rotor. Yoke parts are placed on the open sides of the E and four like coils traversed by the yoke parts are inserted in the windows obtained at the corners of the stator lamination. Shading rings are slipped over the central short legs of the E's. For the operation of the motor in each direction of rotation, two diagonally opposed, series-connected coils are connected directly to the single-phase mains, while the other two are connected to the single-phase mains via a resistor.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: April 12, 1977
    Assignee: International Standard Electric Corporation
    Inventor: Josef Fiegel