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8179016 |
Motor and compressor
A motor includes a rotating shaft, a rotor fixed to the rotating shaft and first and second stators facing each other on opposite axial sides of the rotor with a gap in between. Each of the first...
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7990019 |
Flat motor having a dual air gap
An electric motor is provided which includes a stator, in which field magnets are fixedly and radially installed on a circular panel-shaped base. A coaxial cylindrical rotor is coupled to a shaft...
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6710503 |
Stator structure for claw-pole type stepping motor
A stator structure of a claw-pole type stepping motor which has an outer stator yoke having a plurality of pole teeth; an inner stator yoke having a plurality of pole teeth which are intermeshed...
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6380646 |
Motor with an electrically commutated stator and a rotor with permanent magnets
A low-noise, torque compensated motor with an electrically commutated stator and a permanent magnet rotor which is achieved solely through a spacing of the air gap surfaces of the stator if these...
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6281616 |
Claw pole motor
An electronically commutated claw pole motor has an external rotor (42) with a shaft (40) and a rotor magnet (62). The claw pole motor contains a stator (64) which has a first soft ferromagnetic...
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5124599 |
Stepping motor for timepiece
A stepping motor for a timepiece has a coil (12), a single magnetic circuit, two stator pole pieces (10a, 10b), and two rotors in the form of axially magnetized permanent-magnet disks (13, 14). The...
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4713565 |
Single-phase motor with a magnetized rotor
A motor, comprising a rotor with eight axes of magnetization being parallel to its axis of rotation and alternately inverted; a stator having two coplanar polor pieces with interleaved pole shoes...
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4703243 |
Stepping motor harmonic suppression
A stepping motor including a plurality of stator poles wherein the stator poles are non-symmetrically displaced from their normal position to reduce harmonics in the torque/displacement crossing of...
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4517478 |
Electric stepper motor
An electric stepper motor of the type comprising an axially magnetized rotor disc and a plurality of elemental magnetic stator circuits is disclosed. Each elemental circuit is formed of two...
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4398107 |
Micro stepping motor
A micro stepping motor for use in compact electronic watches comprises a magnetic core, a coil winding wound on the magnetic core, and a one-piece stator connected to the magnetic core to define...
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4387312 |
Stepping polyphased motor for a clockwork mechanism
A polyphased stepping motor for the direct driving of the second or minute pin in a clockwork. The motor comprises a disc shaped rotor (1) axially magnetized so as to have 2N alternating poles and...
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4318017 |
Rotor assembly for electric stepping motor
A rotor assembly for a stepping motor is provided by locating one flat side of a brittle annular rotor disc against an annular alignment surface on a hub and mounting the hub with aligned rotor...
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3979616 |
Unipolar rotary step motor
A unipolar rotary step motor having a polarized rotor which turns step-by-step in response to the magnetic field of a control coil as the coil is periodically pulsed by spaced unidirectional...
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3609422 |
WOBBLE ELEMENT MOTOR
An inductance coil structure of spherical configuration comprises a movable element for driving the motor. It is wobbleably mounted concentrically of an angularly offset section of the output shaft...
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3568030 |
ELECTROMAGNETIC MOTOR UTILIZING ATTRACTION AND REPULSION FORCES
An electromagnetic motor is disclosed incorporating a plurality of rotatably mounted shafts each of which carries a plurality of individual rotors and is supported by a plurality of individual...
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3370189 |
Stepper motor having a stator biasing magnet
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3165684 |
Stepping motor with bistable triggering
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2806987 |
Magnetic motor
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