Class 310/154.38 - Pole shoe shape

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein the magnetic pole pieces or pole
No. of patents: 3
Last issue date: 07/03/2007

Number	Title	Issue Date
7239060	Brush DC motors and AC commutator motor structures with concentrated windings Structures of direct current motors or ac commutator (Universal) motors which use a concentrated winding on the rotor with coils wound around the teeth. The number of commutator segments is higher than the number of rotor teeth. Several coils are wound around the sa...	07/03/2007
6847143	Rotary electrical machine having magnet arrangements with magnets of different compositions A rotary electrical machine, especially an alternator or an alternator-starter for a motor vehicle, comprises a stator (S), a rotor (R) and permanent magnets incorporated in the rotor and/or the stator, in which the said magnets are formed into at least two groups e...	01/25/2005
3953750	Electric motor A direct current permanent magnet electric motor is disclosed which comprises a hollow rotatable armature, magnet means mounted concentrically with and spaced radially from the armature, and one or more pairs of pole pieces which directly contact opposite...	04/27/1976

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