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| Number | Title | Issue Date |
| 6924579 | Electrical machine A motor/alternator is formed by a single toroidal magnet and flux conductors which, in combination with flux switches, create an alternating magnetic circuit around a power coil. The motor/alternator geometry minimizes flux leakage. The form of the flux conductor an... | 08/02/2005 |
| 6792335 | Robotic apparatuses, systems and methods A mobile device for traversing a ferromagnetic surface. The device includes a frame and at least one surface contacting device attached to the frame. The device also includes a Halbach magnet array attached to the frame, wherein the Halbach magnet array provides a m... | 09/14/2004 |
| 6357359 | Integrated high speed maglev system utilizing an active lift An integrated MAGLEV (Magnetic Levitated Vehicle) system consists of permanent or preferably superconducting vehicle-mounted magnets which interact with both active and induced track-based currents. The magnets on the vehicle which are used for propulsion... | 03/19/2002 |
| 5777418 | Transverse flux motor with magnetic floor gap A transverse flux motor includes an outer stator having a plurality of outer stator soft iron elements which are substantially disposed with uniform separation from one another. The flux motor further includes an inner stator having a plurality of inner s... | 07/07/1998 |
| 5021725 | Circuit arrangement for preventing inductive interference in an electric car An arrangement for preventing inductive interference in an electric car having a power receiver for receiving DC power from a feeder line connected to a DC power supply, an inverter connected between the power receiver and a ground side terminal connected... | 06/04/1991 |
| 4510395 | Double-axle drive for electric self-propelled railway vehicle A longitudinal double-axle drive for an electric, track-bound, self-propelled vehicle is disclosed in which the electric propulsion motor is disposed longitudinally between two driving axles of the vehicle. The motor drives both driving axles via a respec... | 04/09/1985 |
| 4412145 | Stator for an electric machine excited by permanent magnets Arcuate permanent magnets are inserted into the bore hole of a stator intended for use in an electric machine which is excited by permanent magnets. Spring elements, inserted into recesses in the wall of the bore between the magnets, have spring arms whic... | 10/25/1983 |
| 4130065 | Dual axle railway driving truck A drive for a railway track-bound propulsion vehicle includes a traction motor with output shafts on both sides. The motor is longitudinally arranged between two driving axles of a track-bound propulsion vehicle and is designed without a housing. In addit... | 12/19/1978 |
