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| Number | Title | Issue Date |
| 7159295 | Method of making a miniature electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets | 01/09/2007 |
| 6906440 | Bracket assembly having a plurality of plates for a dynamoelectric machine A bracket assembly for a dynamoelectric machine includes a base plate and a bracket support assembly. The bracket support assembly includes a first end plate, a second end plate and a support member connected to at least one support plate. The bracket support assemb... | 06/14/2005 |
| 5399929 | Miniature motor A miniature motor comprising a case formed into a bottomed hollow tubular shape and having permanent magnets fixedly fitted to the inner circumferential surface thereof, a rotor consisting of an armature and a commutator, and a case cover engaged with an ... | 03/21/1995 |
| 4973871 | Stator assembly having magnet retention by mechanical wedge constraint A stator assembly for a d.c. electric motor/generator has a pair of permanent magnet segments located on the interior surface of the yoke. The magnet segments are held in place by a pair of wedges which are attached to the yoke. The wedges are tapered inw... | 11/27/1990 |
| 4914713 | Rotation detection or speed pickup device for miniature d-c motor In order to pick up in a simple manner which is reliable, and under rough operating conditions, a rotation of the rotor in a miniature motor excited by permanent magnets with magnet segments at a tangential distance with magnet segments distributed at the... | 04/03/1990 |
| 4628220 | Motor arrangement comprising at least three co-planar conical motors A compact motor arrangement having at least three equi-angularly-spaced motors having coplanar rotational axes intersecting at a common point. Each motor has an exterior shape of a frustrum of a cone, and a conical air gap, the exterior surfaces of adjoin... | 12/09/1986 |
| 4542314 | Permanent-magnet commutator motor with auxiliary pole/bracket A permanent-magnet excited commutator motor, particularly a multipole small motor, has a stator yoke, an armature, two permanent magnet elements having a relatively low permeability, the permanent magnet elements having end tips with a gap formed between,... | 09/17/1985 |
| 4237393 | Drive motor for a dental handpiece A drive section for a dental handpiece having a housing with means for connection to a supply hose and means for connection to a grip section of the handpiece, the housing receiving a drive motor having a stator surrounding a rotor and at least one coolan... | 12/02/1980 |
