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Match Document Document Title
7627922 Nodal mounted system for driving a power appliance  
The power toothbrush, which has a rotating brushhead movement, includes a housing with a motor mounted therein having an armature which in operation rotates through an arc of predetermined...
7608952 Use of PFPE lubricant in automotive applications  
A motor ( 10 ) for a vehicle includes a stator assembly ( 14 ) and a rotor assembly ( 16 ). Bearing structure ( 20, 22 ) support the rotor assembly to permit rotation of the rotor assembly with...
7599615 Motor structure with built-in lens  
A motor structure with a built-in lens includes a lens mount ( 10 ), a motor ( 30 ) received in the lens mount, and a lens unit ( 50 ) received in the lens mount and driven by the motor to...
7589445 Linear actuator comprising a brushless polyphase electric motor  
A linear actuator includes a brushless polyphase synchronous electric motor having a stator and a rotor. The rotor acts on a control element via a driver which can transform the rotation movement...
7582995 Stepping motor, lens device using the same, and imaging device using the same  
A stepping motor comprises first to third coil portions and first to second rotors. The first rotor has a cylindrical shape and a circumferential surface thereof is magnetically-polarized so as to...
7576460 Energy conversion system  
An energy conversion system that converts electrical energy to mechanical energy, and with certain power supplies can convert solar energy into mechanical energy. It operates on a timed direct...
7564153 Apparatus and method for producing mechanical work  
Improved energy conversion devices comprise a first magnet, a second magnet oriented such that similar poles of the first magnet and the second magnet can be positioned proximate each other, and a...
7564151 Linear actuator having mechanism for stopping linear movement of output shaft without touching rotor  
A stopper member is included in a linear actuator comprising a stator assembly, a rotor assembly, an output shaft, and a stopper pin which is fixedly disposed at a frontward portion of the output...
7554225 Electric motor with a coil arrangement for providing oscillatory linear and rotational movement  
An electric motor for a small-scale electrical appliance, such as a toothbrush or shaver. The electric motor includes at least one oscillatory motor component, a magnet arrangement having at least...
7550884 Brushless motor  
A cutout portion is formed at an outer peripheral side of a stator placing portion provided in a bearing bush for placing a core back portion of a stator. A connecting wire portion of a coil of the...
7541707 Electric actuator  
An electrically powered linear actuator having a thrust assembly, a motor with a rotor surrounding at least a portion of the thrust assembly and a rotary encoder with a rotation sensing member...
7493669 Nodal mounted system for driving a power appliance  
The power toothbrush, which has a rotating brushhead movement, includes a housing with a motor mounted therein having an armature which in operation rotates through an arc of predetermined...
7482717 Servo actuator with self positioning rotor and method  
A linear actuator is provided with an integral permanent magnet, brushless motor capable of axial, self adjustment of the rotor position within the stator for field weakening. Axial displacement of...
7482721 Power transmission system  
The present invention aims to alleviate a power loss possibly occurring when a power is transmitted from a driving side to a driven side using attraction/repulsion of magnets and to amplify...
7471020 Linear actuator  
A linear actuator, preferably for sickbeds and beds for domestic use, comprises a reversible electric motor ( 2 ) which, via a reduction gear, drives a spindle ( 4 ) with a nut ( 5 ) secured...
7449807 Magnetic transmission  
A magnetic transmission having an input shaft and an output shaft with two or more gear assemblies, each gear assembly having an input sprocket affixed to the input shaft, an output armature with...
7443121 Actuator control system  
An actuator control system comprises an electric actuator, a driver, and a controller. The electric actuator is provided with a buffering mechanism which absorbs impact applied to a piston rod. The...
7443058 Actuator capable of reciprocal linear driving and rolling driving and power toothbrush using the same  
A reciprocal linear driving unit and a rolling driving unit are adjacently provided on a common single shaft in axial direction thereof, so that the reciprocal linear driving in the axial direction...
7411320 Radially-activated engine  
A motor includes a plurality of linearly activated pistons, positioned radially around an axis, which are selectively and sequentially biased against on offset element to produce rotation of a...
7408278 Motor-generator with adjustable axial gap for vehicle  
A rotary electric machine capable of optionally adjusting output characteristic and an electric motor vehicle using the rotary electric machine are provided. A rotary electric machine is...
7400069 Generator having reciprocating and rotating permanent motor magnets  
A generator for producing electric power includes a drive mechanism, such as a drive motor, having a rotor supported for rotation about an axis. A first generator magnet driveable by the rotor...
7397209 Actuator  
An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a...
7385325 Magnetic propulsion motor  
The present invention relates to a magnetic propulsion motor comprising a magnetic drive assembly comprising a drive magnet, a rotating hub, and a motion magnet attached to the rotating hub to...
7382106 Method to operate a motor having reciprocating and rotating permanent magnets  
A method to operate a motor having a rotor supported for rotation about an axis, at least one pair of rotor magnets spaced angularly about the axis and supported on the rotor, at least one...
7358635 Magnetic power transmission devices for oilfield applications  
A method and apparatus relates to incorporating a magnetic coupling for use in oilfield applications. The magnetic coupling is operatively coupled to an oilfield machine to provide a controlled...
7358632 Motor which performs a rotational-to-linear motion conversion  
A sliding hole is formed so that a screw portion can pass therethrough. Also, a seal member is provided at a portion, through which the screw portion placed in the sliding hole can pass and in...
7352089 Driving apparatus  
A driving apparatus includes a stepping motor having a lead screw, a rack, and a rack-retaining bar, a barrel, a barrel-retaining bar, and a connecting spring for connecting the rack to the barrel....
7348698 Actuator for operating a transmission control valve of an automatic transmission apparatus  
A rotor having magnets composed of rare-earth magnets is rotatably disposed inside an exterior casing, a penetrating aperture is disposed through a first end of the exterior casing relative to a...
7339298 Compliant motor driven variable electrical device  
A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support...
7325637 Hybrid drive device  
A hybrid drive device comprises an internal combustion engine and an energy converter adapted to co-operate with an output shaft of the internal combustion engine and which comprises an electric...
7321175 Low cost precision linear actuator and control system  
Embodiments of the present invention relate to a linear actuator in which the play and backlash in the linear motion of a stepper motor is reduced through the use of a torsion spring coupled to the...
7298108 Control system for electric actuator  
A driver comprises a direction-switching means which switches a rotation direction of a rotary driving source based on a direction instruction signal, a current amplifier/limiter which converts a...
7285883 Drive system for linear and rotary movements  
A drive system includes a rotary drive unit for rotating a shaft and a linear drive unit for moving the shaft in a linear direction. To improve efficiency and shelf life, an energy storage is...
7279813 Z-θ table activated by two rotary motors  
A Z-θ table includes a bed capable of undergoing linear displacement along the Z-axis and angular positioning. The table includes two rotary motors arranged in a substantially concentric manner...
7274124 Electric generator  
The present invention discloses a generator ( 1 ) able to generate either unidirectional current or bi-directional current. A rotatable disc ( 7 ) has a conductive track ( 9 ) and a ferromagnetic...
7274120 Drive unit and image pickup unit equipped with the drive unit  
A drive unit for performing precise linear movement of a driven object comprises a motor having a cylindrical stator and a cylindrical rotor that is coaxially put in the cylindrical stator and...
7262525 Rotor and motor having the same  
A rotor of a motor includes a cylindrical rotor shaft that is formed through plastic working. The shaft includes a positioning portion that is formed in an inner peripheral surface of the...
7233087 Electromagnetically driven rotary motor  
Electric energy from a battery is employed to shift the permanent magnetic field located in a generator. A spring housing is located distal from the generator. An outer magnet housing enclosing an...
7218022 Linear actuator  
A linear actuator for displacing a member or a set of movable members, having an electric stepping motor ( 7 ) with a rotor having a portion in the form of a nut ( 9 ), and a linear-movement screw...
7205690 Motor for rotational-to-linear conversion with shaft seal  
A sliding hole is formed so that a screw portion can pass therethrough. Also, a seal member is provided at a portion, through which the screw portion placed in the sliding hole can pass and in...
7199494 Electric linear actuator  
The invention proposes an electric linear actuator with a take-off element ( 12 ) that is adjustably supported on a main housing ( 5 ) and is connected to and driven by an electric motor ( 14 ) via...
7190096 Fault-tolerant electro-mechanical actuator having motor armatures to drive a ram and having an armature release mechanism  
An electrical actuator comprises two or more electrical motors to drive a threaded screw ram. Each motor has an armature that drives a threaded roller screw that is engaged to the threaded screw...
RE39481 Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle  
A device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle, which comprises at least two motion...
7151332 Motor having reciprocating and rotating permanent magnets  
A motor includes a rotor supported for rotation about an axis, at least one pair of rotor magnets spaced angularly about the axis and supported on the rotor, at least one reciprocating magnet, and...
7135794 Spring support having a height-adjustable spring plate  
Spring support having at least one axially moveable spring plate, an actuator with a rotor producing a rotational movement relative to its stator, which is converted into an axial movement of the...
7105968 Magnetic transmission  
Embodiments of the present apparatus include a magnetic transmission. The apparatus in this embodiment may have the following components: a plurality of magnetic gears arranged to form at least two...
7102258 Manual electric generating device  
The present invention discloses a manual electric generating device, which comprises an upper casing, a lower casing; a rotor, a fixed stand, a hollow cylinder, a coil for generating power supply;...
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 (...
7098562 Ambidextrous electronic window lift motor  
A motor assembly 30 includes an electric motor 32 having a rotatable shaft 40 , the shaft 40 having a worm 38 ; and a gear unit 33 operatively associated with the motor, the gear unit has...
7064464 Electromechanical linear drive  
The invention relates to an electromechanical linear drive, in particular for an injection moulding machine, comprising an electric motor with a hollow-shaft rotor, open on one side, with a...
Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >