| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310127000 | Plural collector-type machines | 6 |
| 310128000 | Commutator and slip-ring type | 1 |
| 20090001832 | COMMUTATOR, DIRECT-CURRENT MOTOR, AND METHOD FOR MANUFACTURING COMMUTATOR - A commutator having a plurality of segments, a short-circuit member assembly, a holding portion, and a plurality of spacing members is disclosed. The short-circuit member assembly includes a plurality of short-circuit pieces. Each short-circuit piece has an outer terminal, an inner terminal arranged radially inward from the outer terminal and circumferentially offset from the outer terminal at a predetermined offset angle, and a connecting portion connecting the inner terminal to the outer terminal. The holding portion covers the segments and at least a portion of the short-circuit member assembly to hold the segments and the short-circuit member assembly. The spacing members each have an insulated support portion and a plurality of insulated spacing projections formed integrally with the support portion. Each support portion extends in a radial direction of the short-circuit member assembly. The spacing projections are arranged in the direction in which the corresponding support members extend in such a manner that the spacing projections are each provided between the corresponding circumferentially adjacent pair of the connecting portions. | 01-01-2009 |
| 310136000 | Plural commutator type | 1 |
| 310140000 | Plural armature windings | 1 |
| 20100301694 | DIRECT CURRENT MOTOR WITH PERMANENT MAGNET STATOR - Described is a direct current motor ( | 12-02-2010 |
| 310143000 | Plural slip-ring sets | 1 |
| 310144000 | Plural armature windings | 1 |
| 310146000 | Polyphase windings | 1 |
| 20140132101 | ELECTRIC POWER COLLECTION AND DISTRIBUTION RING AND ELECTRIC MOTOR - An electric power collection and distribution ring includes first to third bus rings configured to collect and distribute electric power from and to winding wires of a plurality of phases. The first to third bus rings include first to third annular conductor parts, respectively, and first to third feeding terminal parts, respectively, configured to feed electric power to the first to third annular conductor parts, respectively. The second feeding terminal part projects toward another side in an axial direction of the first to the third annular conductor parts without projecting toward the one side in the diameter direction than the first annular conductor part. The third feeding terminal part projects toward the another side in the axial direction of the first to the third annular conductor parts without projecting toward the one side in the diameter direction than the second annular conductor part. | 05-15-2014 |
| 310148000 | Plural sets of brushes | 3 |
| 20080246360 | DIRECT CURRENT MOTOR - A slide surface of each segment defines a plane orthogonal to an axial direction of a direct current motor. A power supply brush is pressed against and contacted with the slide surface. The power supply brush includes a main brush and a sub-brush. The sub-brush has electrical resistance that is higher than that of the main brush. At least the main brush supplies an armature with power. The sub-brush is arranged more inward in the radial direction of the commutator than the main brush. | 10-09-2008 |
| 20090066179 | DIRECT CURRENT MOTOR - A slide surface of each segment defines a plane orthogonal to an axial direction of a direct current motor. A power supply brush is pressed against and contacted with the slide surface. The power supply brush includes a main brush and a sub-brush. The sub- brush has electrical resistance that is higher than that of the main brush. At least the main brush supplies an armature with power. The sub-brush is arranged more inward in the radial direction of the commutator than the main brush. | 03-12-2009 |
| 20140159527 | ELECTRIC MOTOR - An electric motor includes a yoke having a plurality of magnetic poles, a rotary shaft, an armature core ( | 06-12-2014 |
