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| Number | Title | Issue Date |
| 8089185 | Actuator having a rotation prevention link plate An actuator having an output axis which is moved linearly by a rotatory force, and a boss for holding the above-mentioned output axis in such a way that the output axis can move linearly includes a connecting member for propagating the linear motion of the above-men... | 01/03/2012 |
| 8084904 | Magnetic propulsion motor The present disclosure relates to a magnetic motor including a drive magnet, a motion magnet, and an acceleration field. The drive magnet includes magnetic shielding, typically on a portion thereof, altering the magnetic field of the drive magnet. In some embodiment... | 12/27/2011 |
| 8080911 | Spherical motor rotating in multiple degrees of freedom A spherical motor rotating in multi degrees of freedom has a reliable capability of determining positioning. The spherical motor includes a hollow spherical-shaped stator installed with a bi-level bobbin wound by coil generating a synthesized magneto-motive force on... | 12/20/2011 |
| 7939979 | 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 rotatable with the rotor. ... | 05/10/2011 |
| 7911096 | Electromagnetic oscillator with electrical and mechanical output An oscillator typically includes several pivotable oscillating arms each having a drive magnet and a follower magnet thereon so that the drive magnet on one arm drives movement of the follower magnet on another arm to oscillatingly pivot the other arm. Typically, a ... | 03/22/2011 |
| 7902703 | Apparatus and method for producing mechanical work Improved energy conversion devices comprise a first ferromagnetic element, a second ferromagnetic element oriented such that similar poles of the first ferromagnetic element and the second ferromagnetic element can be positioned proximate each other, and a mechanica... | 03/08/2011 |
| 7893582 | Hollow motor drive device with an offset magnet, shaft, and nut A hollow motor drive device includes a screw shaft provided with a spiral screw groove formed in an outer peripheral surface thereof, a nut member screw-engaged with the screw groove, a hollow drive shaft having an inner peripheral side on which the nut member is fi... | 02/22/2011 |
| 7777377 | 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 rotate the motion magnet proximate to the magnetic drive assembly. A driv... | 08/17/2010 |
| 7675208 | Global pointing actuator A pointing actuator comprises a spherical base; a plurality of coils wound around an outside surface of the spherical base, wherein at least one coil is wound along latitudinal lines around at least a portion of the spherical base, and at least one coil is wound alo... | 03/09/2010 |
| 7659647 | Linear actuator An actuator. In one embodiment, the actuator comprises a reversible electric motor having a stator having a housing, a rotor housed in the housing of the stator, and a shaft having a forward portion and a rearward portion extending oppositely and coaxially from the ... | 02/09/2010 |
| 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 respect to the stator assembly. A shaft (30) ... | 10/27/2009 |
| 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 thereof into a linear movement over several rotations. Preferably, the... | 09/15/2009 |
| 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 alternately arrange south poles and north poles. The first rotor is d... | 09/01/2009 |
| 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 current pulse and its configuration causes a magnetic field to align with... | 08/18/2009 |
| 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 mechanical element connected to the first magnet such that movement o... | 07/21/2009 |
| 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 rotatable with the rotor. ... | 06/02/2009 |
| 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 (improve a joggle mechanism effect) an output. A pair of inner magnet... | 01/27/2009 |
| 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 buffering mechanism includes piston dampers which absorb impact appl... | 10/28/2008 |
| 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 and the rolling driving around the axis are performed by the single ... | 10/28/2008 |
| 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 rotatable element about the axis. The motor further includes an power sou... | 08/12/2008 |
| 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 constituted with: a rotary shaft 220; a rotor 40 connected... | 08/05/2008 |
| 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 includes a reference pole facing in a first direction. A second generator... | 07/15/2008 |
| 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 screw shaft, at least a part of which is inserted into the movable ro... | 07/08/2008 |
| 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 rotate the motion magnet proximate to the magnetic drive assembly. A driv... | 06/10/2008 |
| 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 reciprocating magnet. The method includes the steps of moving the reciprocati... | 06/03/2008 |
| 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 operational speed. The magnetic coupling may be operatively connected to... | 04/15/2008 |
| 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 which a sliding portion does not slide. ... | 04/15/2008 |
| 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. The connecting spring includes an engaging portion that engages with... | 04/01/2008 |
| 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 direction of a motor central axis, and a filter is disposed so as to co... | 03/25/2008 |
| 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 plate pliably attached to the first support plate using a pliable sep... | 03/04/2008 |
| 7336006 | Magnetic actuator with reduced magnetic flux leakage and haptic sense presenting device A magnetic actuator, comprising a magnet, mutually opposite magnetic poles thereof being arranged opposing each other, and a coil, at least one portion thereof being inserted between the corresponding magnetic poles, wherein a driving force for the coil is generated... | 02/26/2008 |
| 7331610 | Belt height adjustment device A height-adjustable, belt-deflecting device for a seat belt including a deflecting element which deflects the seat belt. The device improves the safety of a vehicle occupant to be secured and protected by the seat belt. This is achieved by the having a deflecting el... | 02/19/2008 |
| 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 machine. The electric machine includes a first rotor connected to the o... | 02/05/2008 |
| 7323798 | Microwave displacement measurement system for an electrodynamic direct drive An electrodynamic direct drive includes an armature that travels within a housing and a drive system for moving armature in relation to housing. The drive system has two drive means, that are moved in relation to each other in the form of a coil system with at least... | 01/29/2008 |
| 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 stepper motor splined shaft. Also, embodiments of the invention incl... | 01/22/2008 |
| 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 voltage outputted from the direction-switching means into a correspond... | 11/20/2007 |
| 7291089 | Toroidal transmission A method is provided for optimally engineering a toroidal transmission having a desired input/output ratio to implement the desired ratio of the transmission while meeting the torque and efficiency requirements of the design. Nanoparticle technology is used to manuf... | 11/06/2007 |
| 7285896 | Electrically-actuated A.C. or D.C. motor for providing differential vehicle traction The device includes a housing and an outer shell including tightly wound wire coils fitted within the housing. Rotatable armatures including associated commutators are disposed at outer end portions thereof. The armatures further include spring loaded brushes and a ... | 10/23/2007 |
| 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 mechanically connected to the shaft for biasing the shaft to seek a linear... | 10/23/2007 |
| 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 with two fixed stators. The interior rotor includes a device for guidin... | 10/09/2007 |
