Patents by Inventor Craig A. Nazzer

Craig A. Nazzer 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: 4538086
    Abstract: Electromagnetic machines of the type having circular arrays of permanent magnets arranged on a rotor and a plurality of pole pieces arranged on a stator, requires that a maximum number of pole pieces be arranged around the stator in order to attain maximum utilization of the magnetic flux and to minimize interpole flux leakage. The instant stator of an electromagnetic machine includes a plurality of U-shaped pole pieces, with adjacent ones of the pole pieces opening in opposite radial directions from an axis of the stator. The pole pieces which open radially inwardly are stepped so as to have a relatively thicker portion radially outwardly from the axis and a relatively thinner portion radially inwardly from the axis. Thus, the number of pole pieces that can be arranged around the stator is maximized, as is the utilization of magnetic flux, and interpole flux leakage is minimized.
    Type: Grant
    Filed: August 17, 1984
    Date of Patent: August 27, 1985
    Assignee: Caterpillar Tractor Co.
    Inventors: John D. Marsh, Craig A. Nazzer