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7576456 |
Linear actuator
In a linear actuator ( 1 ), on the inside of a rectangular tubular movable element ( 3 ), a linear guide ( 14 ) that supports the movable element ( 3 ) so as to be linearly movable is positioned at...
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7538463 |
Vibrator
A vibrator includes a voice coil and a vibrating member supported by first and second suspensions so as to be vibratory in the axial direction of the coil. Each of the first and second suspensions...
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7538456 |
Moving magnet type linear actuator
In a moving magnet type linear actuator ( 10 ), a stator ( 30 ) having an armature ( 32 ) including a magnetic iron core ( 33 ) fixed on a stator base ( 31 ) and an armature winding ( 34 ) wound...
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7472770 |
Hub unit for use in electrically movable wheels and vehicle comprising the hub unit
A hub unit for use in electrically assisted bicycles is improved in an effect to cool a motor incorporated in the unit. The hub unit has a motor 9 comprising a stator 3 and a rotor 4 , and a...
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7471019 |
High speed assembly actuator
Apparatus and associated systems or methods include a linear machine with an elongate, axially-slidable core member (i.e., shaft). In one embodiment, the shaft includes at least one radial aperture...
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7467568 |
Drive device comprising a gear unit and a motor unit
A drive device has a gear unit having a gear shaft and a motor unit having a motor shaft drivingly connected to the gear shaft. At least one cooling unit is arranged within the drive device for...
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7414336 |
Dual flow circulation system for a mover
A circulation system ( 330 ) for a mover ( 328 ) includes a fluid source ( 360 ) that directs a first fluid ( 356 ) into a first inlet ( 364 A) of the mover ( 328 ) and a second fluid ( 358 ) into...
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7408276 |
Plane motor device with surrounding member surrounding coil unit and with cooling channel provided within surrounding member
A plane motor device that includes a stator unit, a movable unit movable along a plane above the stator unit, first and second coil units at one or both of the movable unit and the stator unit, in...
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7391496 |
Exposure apparatus
An exposure apparatus which exposes a substrate to a pattern. The apparatus includes a channel which causes pure water to flow as a coolant, a temperature adjustment unit which adjusts a...
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7385317 |
Linear motor not requiring yoke
A linear motor not requiring a yoke structure is provided. A first unit forming a stator is constructed of two permanent magnet rods. The permanent magnet rods each have a magnetically permeable...
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7355308 |
Mover combination with two circulation flows
A circulation system ( 330 ) for a mover ( 328 ) includes a fluid source ( 360 ) that directs a first fluid ( 356 ) into a first inlet ( 364 A) of the mover ( 328 ) and a second fluid ( 358 ) into...
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7345384 |
Linear motor armature and linear motor
In a linear motor, a can has a two-layer structure including an inner can 2 and an outer can 3 , and an inner passage 7 formed between an armature winding 9 and the inner can 2 and an...
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7332836 |
Guide bar drive in a knitting machine
Guide bar drive in a knitting machine and method of driving guide bar. The drive includes a linear motor composed of a stator and a rotor, in which the linear motor is greater in height than width....
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7329972 |
Coil support unit, motor and exposure apparatus using the same, and device manufacturing method
An apparatus including a coil used for generating a thrust to move a movable portion, and a coil support portion which supports the coil. The coil support portion constrains the coil in a direction...
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7309931 |
Electric motor with cooling coil
The invention relates to a motor part of a linear motor, i.e. the primary part or secondary part of an asynchronous or synchronous linear motor. According to the invention, it is proposed to...
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7301602 |
Stage apparatus and exposure apparatus
A moving element to be propelled across a stator includes a coil unit, including coils, for generating a force to propel the moving unit, and a cooling unit for cooling the coil unit. A thermal...
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7166978 |
Motor temperature sensor system and method to determine motor performance
An electric motor system includes an electric motor, a temperature sensor mounted therein capable of measuring a local temperature and generating a temperature related signal, and a processor...
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6917126 |
Sliding means with built-in moving-magnet linear motor
A sliding means with built-in moving-magnet linear motor is provided, realizing high-speed operation and much response ability of a table to a stationary bed, and also accurate position control of...
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6847132 |
Electromagnetic actuator having an armature coil surrounded by heat-conducting anisotropy material and exposure apparatus
An electromagnetic actuator has a permanent magnet and an armature coil that performs relative movement with respect to the permanent magnet. A material having heat conduction anisotropy surrounds...
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6825583 |
Linear motor including cooling system
Disclosed is an iron core type linear motor, and more particularly an iron core type linear motor with an improved cooling system for an easy manufacture thereof while having a high cooling...
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6822352 |
Cooling of stator by corrugated hose in an electric machine
A cooled stator for an electric machine including a rotating rotor wherein the stator comprises an electric sheet metal stack and one or more flexible, deformable cooling channels for guiding the...
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6717295 |
Cooling apparatus for linear motor
The present invention discloses a cooling apparatus for a linear motor comprising: a ‘U’ shaped stator back iron; a stator having a plurality of permanent magnets installed on inner facing...
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6665414 |
Speaker system and cooling device therefor
A speaker system and a cooling device therefor is provided which is capable of effectively dissipating heat generated by a voice coil. The cooling device is formed as a unitary member having a...
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6657327 |
Linear direct current motor
A linear direct current motor comprises a center yoke ( 1 ) ending in the longitudinal direction X, an outer yoke ( 31 ) arranged parallel to the center yoke, a peat magnet ( 41 ) for generating...
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6552450 |
Reciprocating engine
A reciprocating engine has at least one cylinder forming an inner chamber, at least one piston reciprocatingly movable in the inner chamber of the at least one cylinder, a unit for converting a...
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6528907 |
Linear motor
A linear motor capable of effectively cooling heat generated when the linear motor is driven is provided where the motor includes a moving element having the lower portion with a plurality of field...
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6232680 |
Cooling apparatus for electronic device
An apparatus for cooling an electronic device includes a case where a plurality of air intake/exhaust holes through which air passes are formed. A plate type mobile member is installed to vibrate...
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5838079 |
Synchronous linear motor using permanent magnet
A synchronous type of linear motor using a permanent magnet comprising a primary magnetic pole member (a three-phase coil) and a secondary magnetic pole member (a permanent magnet) each for...
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5717266 |
High power oscillatory drive
An oscillatory drive incorporating the invention includes a driven rotor that is mounted on a shaft and includes plural driven permanent magnets disposed thereon. A spring arrangement is coupled to...
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5670834 |
Electric power converter with load compensation
Electric power converter with load compensation, especially for electrical loads subject to fluctuations in demand for power, such as arc furnaces, welders, etc. An external source of electrical...
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5430009 |
Superconducting generator
A contactless electrical generator assembly containing a stator and a rotor located within the stator is disclosed. The stator is formed by at least one section of superconductive material and at...
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5406152 |
Electromagnetic vibration generator
An electromagnetic vibration generator includes a housing, a U-shaped magnet core disposed in the housing and having parallel-extending legs each terminating in a pole face, and an excitation...
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5276372 |
Reciprocating electric motor
The rotor of an electric motor is a crank shaft driven through connecting rods by piston-like reciprocating members powered by superconducting electromagnets. The electromagnets can be solenoids of...
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5212416 |
Primary coil assembly for a superconducting linear induction motor
A primary coil assembly for a superconducting linear induction motor is provided which is arranged opposite to a secondary conductor for exerting a relative thrust on the secondary conductor when...
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5057724 |
Ceramic magnet motor
A motor has a plurality of pistons each of which has a ceramic magnet mounted thereon. The ceramic magnets are permanently polarized, and each piston is mounted in a cylinder to reciprocate within...
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4965864 |
Linear motor
An electromechanical linear motor incorporating a number of electrically conductive drive coils arranged axially and embedded in a composite matrix so as to form a hollow cylinder within which a...
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4906878 |
Fluid circulated linear motor for robotic systems
A linear motor comprised of a plurality of primary coils arranged and spaced sequentially. A fluid intake manifold and a fluid exhaust manifold with at least one conduit in fluid communication...
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4839545 |
Cooling system for linear motor
An armature of a linear motor is cooled by a serpentine channel formed in the lower surface thereof and sealed with a sealing plate. In one embodiment, the serpentine channel is formed in a...
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4551037 |
Device for applying paint with reciprocating linear motor
A compact portable, easily operated, paint applying apparatus has a frame adapted to rest on the ground, a lifting handle on the frame for ease in carrying to use locations, a paint reservoir...
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3968387 |
Linear magnetic generator
An axially movable magnetic member is disposed in coaxial relationship to pulse core windings. Responsive to alternating current or pulsed direct current applied to the pulse core windings to the...
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3835339 |
IMPROVEMENT RELATIVE TO LINEAR INDUCTION MOTORS AND COOLING DEVICES APPLIED TO THE SAME
A linear induction motor comprises armature and inductor components one of which is mounted for movement along a rectilinear path relative to the other. The inductor component includes a...
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3694679 |
ELECTROMAGNETIC ENGINE
An electromagnetic engine is disclosed. The engine has a rotational voltage power distributor, an air-cooled circular head having fixed electromagnets, an air-cooled engine block with crankshaft...
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3681630 |
AIR COOLED LINEAR MOTOR
An open end motor of the linear motion type has a tubular air gap between a center core and a tubular magnet or field piece. An armature of tubular shape fits in the air gap and is mounted on a...
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3612924 |
MASS LOADED MAGNETOSTRICTIVE TRANSDUCER
This device is a magnetostrictive transducer having several magnetostrictive elements spaced one from the other and having two end bodies, one mounted at each end of the magnetostrictive elements...
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3576454 |
DATA STORAGE ACCESSING MECHANISM WITH MOVING COIL MOTOR
Apparatus for moving transducers into or out of engagement with a recording medium and for adjusting the position of the transducer laterally with respect to tracks to thereby selectively access...
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3543061 |
RECIPROCABLE MOTOR CORE LAMINATIONS WITH INVOLUTE AND RADIAL SECTIONS
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3538357 |
FLUID CIRCULATING APPARATUS FOR RECIPROCATING MACHINES
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3536941 |
LINEAR SYNCHRONOUS ELECTRIC MOTOR WITH RECIPROCATING ARMATURE
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3500078 |
ELECTRICAL PULSE GENERATORS
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3500079 |
ELECTROMAGNETIC MACHINES
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