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Match Document Document Title
7462967 Flat hollow brushless servo motor with tool mounting hole  
A flat, hollow brushless servomotor ( 1 ) has a motor housing ( 2 ), housing through holes ( 22 a, 23 a ) formed in a center of both end plate portions ( 22, 23 ), a rotor shaft ( 41 ) of which a...
7453177 Magnetic coupling devices and associated methods  
The magnetic coupling system of the present invention overcomes drawbacks experienced by the prior art. A coupling system in accordance with one embodiment of the invention comprises a rotor...
7411328 Dynamo electric machines  
A dynamo electric machine for an aircraft gas turbine engine includes a housing supporting a stator of the dynamo electric machine, a rotor assembly rotatably mounted in the housing and including...
7105965 Electric motor with the rotor connected to the member that is to be rotated  
In an electric motor having a rotor ( 2 ) and, coaxial therewith, a stator ( 1 ), both contained in a frame ( 3 ), the motor being capable of rotating a member ( 4 ) about an axis of rotation...
7102261 Coupling device between a rotor of permanent-magnet synchronous motor and a working part  
A coupling device ( 11 ) between a rotor of a synchronous permanent-magnet motor and a working part ( 17 ), being advantageously able to ensure an unusual silentness, comprises a driving member (...
7098563 Drive system having a hollow motor main shaft and a coaxial, manually driven auxiliary shaft  
A motor main shaft and auxiliary shaft coaxial drive system to provide dual transmission input or output at single end or both ends by having its main shaft made in hollow to receive insertion of...
7061151 Supporting device of rotor  
A supporting device of a rotor includes a ceramic axial tube fixed on the rotor, and a ceramic axial support rotationally supporting the ceramic axial tube, wherein the spacing between the ceramic...
6927513 Electromechanical screw drive actuator  
An electromechanical linear actuator assembly having in-line axial load support of its screw drive shaft is provided. The bearing support structure provides a single in-line ball bearing...
6891292 Series of motors  
A series of fabricated products for electrically rotatably driven machines, especially alternating current motors for attachment on drives, for alternating current motors having various pole...
6809440 Space-saving, damping coupling mechanism for worms in geared actuators  
A transmission member for a worm gear having a thrust ring placed over the shaft of a motor. The worm gear is slip-fit over the shaft and has a coupling head with a pair of projections facing away...
6731033 Motor-driven system with stator provided with inductors  
There is provided a motor-driven system which realizes an optimum driving mode for an electric automobile, a robot carrier car, a drum of a copying machine, etc., and a motor-driven system having a...
6710482 Generator  
A generator comprising a generator housing and a generator drive shaft including a power input shaft coupled to a drive member through a coupling arrangement, whereby in use the drive member is...
6661137 Drive element such as a driving wheel or a hoisting winch, the element comprising a synchronous motor  
The present invention relates to a drive element such as a driving wheel for a goods-handling cart or the like, or such as a hoisting winch, the drive element comprising a wheel or a drum and an...
6628025 Micro-motor and apparatus using the same motor  
A motor includes (a) a cylindrical frame made of ferromagnetic material, (b) a pipe fitted in and disposed within the frame concentrically, (c) a sintered bearing press-fitted into the pipe, (d) a...
6607385 Method and device for limiting the torque of dental and surgical handpieces  
In a method for controlling a torque of a motor of dental and surgical handpieces to not exceed a set-point value when screwing in implant members, a motor current for applying the set-point torque...
6504276 Motor actuator having simplified interfitting connection  
In a connection between a motor and a position detector that together constitute a motor actuator, a connection shaft of the position detector is engaged with an outer peripheral surface of a motor...
6417591 Magnetic coupling mechanism for use in laser apparatus  
A magnetic coupling mechanism which can transmit rotational force of a motor with high efficiency and is simple in mechanism and unlikely to damage bearings, etc. and also unlikely to contaminate a...
6287204 Adjustable torque limiter  
A torque limiter is formed of a shaft, a cylindrical magnet attached to an outer periphery of the shaft, and a housing for rotationally supporting the axial ends of the shaft and formed of first...
6249070 Rotating assembly and support therefor  
A shaft (14) is formed with a magnetically transparent portion within its length, so as to enable passage therethrough of electromagnetic flux from stator poles, to a further shaft (20) to cause...
6222292 Magnetic drive adapter  
A magnetic drive adapter for use with a plurality of outer drive magnet assemblies having various diameter drive hubs is disclosed. The magnetic drive adapter includes a hollow cylindrical portion...
6218757 Minimizing shaft currents in dynamoelectric machines  
Some dynamoelectric machines develop shaft E.M.F.'s during operation which lead to circulation currents in the shaft of the machine. The shaft current will attempt to flow through the bearings of...
6191511 Liquid cooled asynchronous electric machine  
In order to assure efficient cooling and a temperature balance between the stator and the rotor, an asynchronous electric motor is provided containing a closed cooling liquid circuit which passes...
6172435 Flywheel power source device  
A flywheel power source device for converting electric energy into kinetic energy and for storing the kinetic energy by rotating a flywheel of which rotary shaft is rotatably supported by a bearing...
6169346 Motor equipped driving apparatus  
A driving apparatus includes a motor, an output unit, and an elastic transmission mechanism. The transmission mechanism is disposed between the motor and the output unit to relieve shocks applied...
6140723 Vibration generating device and oral hygiene device using same  
An oral hygiene device comprises a rotating body 22 mounted to a rotating shaft 21 of an electric motor 14, an output shaft 11 resiliently supported via a resonance pin 25 to be swingable finely, a...
6118195 Electric motor drive for eccentrically supported cylinder  
6072258 Permanent magnet coupler with adjustable air gaps  
A cage carrying two axially adjustable conductors is mounted on one shaft and a rotor is mounted on a second coaxial shaft to occupy a position between the conductors. Permanent magnets on the...
6072252 Composite electric motor shaft  
A composite electric motor shaft including axially distributed metallic and nonmetallic sections joined together exhibit increased mechanical damping, increased rotor critical speed, improved...
6054788 Magnetic power transmission coupling  
A magnetic coupling is provided having a first shaft and a second shaft. A plurality of first magnets is in rotationally driving engagement with the first shaft and defines alternating polarity...
6041571 Magnetic coupling for a capping apparatus  
A capping apparatus and a magnetic coupling assembly therefor comprises a capping head for applying a cap, a drive mechanism for driving the capping head, and a separable magnetic coupling for...
6037687 Double diaphragm compound shaft  
A compound shaft coupling having a flexible disk shaft, with two flexible disks or diaphragms, and a tie bolt shaft connecting two rigid or stiff shafts. One flexible disk diaphragm of the flexible...
5994809 Magnetic drive arrangement  
Three magnetically cooperating parts are movable relative to one another, one part being provided for connection to a drive shaft, one part being provided for connection to an output shaft, and one...
5982064 DC motor  
The DC motor according to the present invention includes one radial ball bearing and a thrust bearing constituted by a shaft receiving member provided on a housing to be abutted by one end of a...
5945755 Starter with housing for cantilever-mounting on engine  
A starter has a housing formed with a fitting part and a flange on the outer periphery thereof. The fitting part is in circular shape when viewed in the axial direction and is press-fitted, in the...
5936321 Magnet coupling including permanent magnets disposed to define magnetic gap therebetween  
A position of a second permanent magnet with respect to a first permanent magnet is defined by assembling a driving side support member, a thrust bearing, a spacing member, a radial bearing, and a...
5917259 Coupling of an electric motor to a load  
An improved connection coupling for providing rotary motion from an electric motor rotor to a load wherein a mechanical coupling element is attached to an end of the rotor and to the shaft of the...
5903075 Permanent magnet coupler with soft start adjustment system  
The soft start of a permanent magnet coupler of the type in which magnetic flux from permanent magnets on a rotary magnet rotor bridges an air gap between the magnets and an electroconductive...
5902185 Magnetic transmission couplings  
A magnetic transmission coupling includes an inner torque tube (62) carrying one or more stacks of annularly disposed spaced magnets (70), located within a sealing membrane element (38), and an...
5847478 Electro-magnetic clutch  
A self holding type connecting device comprising an armature which is disposed movably in an axial direction, a magnetic path member having a cross section formed along a closed loop and having an...
5844342 Power output apparatus and method of controlling the same  
A power output apparatus 20 includes an engine 50, a clutch motor 30 having rotors 31 and 33 respectively linked with a crankshaft 56 and a drive shaft 22, an assist motor 40 attached to a...
5818135 Vibration generator for generating a directed vibration  
A vibration generator for generating directed vibrations in a compacting device includes a housing and a first and second flyweight shafts rotatably supported in the housing and extending parallel...
5777411 Geared electric motor  
A geared electric motor 1 used for power window apparatuses, for example, which is provided with an mature 7 having an armature shaft 7a, an output shaft 8 connected with the armature shaft 7a...
5769798 Massage apparatus with rotatable massage head having elastic supports  
A massage apparatus includes a motor driving in rotation a drive shaft and a massage head. Supports for the massage head are adapted to allow axial movement and angular displacement of the massage...
5753988 Electromagnetic torque coupling  
An electromagnetic torque coupling, particularly for connecting a torquing tool to a motor, for applying a predetermined torque to the tool; the joint presenting a pair of axial rotors fitted idly,...
5747902 Rotary apparatus  
A completely novel rotary apparatus is provided which can rotate a composite rotor at a high speed by utilizing the magnetic force, the composite rotor being comprised of a plurality of ring-shaped...
5739627 Adjustable permanent magnet coupler  
An adjustable coupler has a rotary magnet rotor with magnet modules gaps from electroconductive elements on an electroconductive rotor. The magnet modules each have two side-by-side permanent...
5717264 Concentric-double-shaft simultaneously rotating apparatus  
A concentric-double-shaft simultaneously rotating apparatus in which a part of the force for driving an inner shaft to rotate is obtained by a device other than a rotation controlled motor to...
5712520 Permanent magnet braking system  
A conductor rotor presents a pair of electroconductive rings spaced apart to receive magnet carrying shoes with permanent magnets to induce eddy currents in the rings and thereby retard rotation of...
5691587 Magnetic centrifugal clutch  
A magnetic coupling device has an electroconductive rotor presenting a band of electroconductive material and has a magnet rotor with permanent magnets which are slide-mounted to move radially...
5691586 System for providing rotary drive between two mechanical members by means of magnetic coupling, and a fluid meter including such a system  
The present invention relates to a system for driving two mechanical members in rotation about an axis by magnetic coupling of the attractive type, the system comprises respective magnetic elements...
Matches 1 - 50 out of 90 1 2 >