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| Number | Title | Issue Date |
| 8063526 | Magnetic gearbox arrangement Magnetic gearboxes an inner rotor and an outer rotor are known with pole members between them. However, these gearbox arrangements generally have a fixed gear ratio between the rotors. By provision of pole members with coils between them and associated switches to a... | 11/22/2011 |
| 7999429 | Power transmission apparatus A power transmission apparatus includes a drive roller and a driven roller made of magnetic material, which are rotatable about different axes, and which are provided with a gap therebetween, a case enclosing the rollers, an input shaft and an output shaft connected... | 08/16/2011 |
| 7990007 | Apparatus for transferring torque magnetically An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets mounted circumferentially on a cylinder, the secondary rotary member having a cylindrical geometry with elec... | 08/02/2011 |
| 7973441 | Magnetic gear Embodiments of the present invention relate to magnetic gears comprising a pair of rotors magnetically coupled in a geared manner via a magnetic space harmonic generated as a consequence of varying an air gap between sets of permanent magnets. ... | 07/05/2011 |
| 7965006 | Device for generating stiffness and joint of robot manipulator comprising the same A device for generating and varying stiffness, which may be applied to a joint of a robot manipulator, the stiffness generating device having a rotating shaft connected to a driven member; a rotor fixed to the rotating shaft and having arms comprising a magnetic ele... | 06/21/2011 |
| 7911102 | Magnetic coupling with hysteresis, particularly for winding/unwinding devices A magnetic coupler with hysteresis (1) has an inductor subassembly (2) and an armature subassembly (6) that are capable of rotating one with respect to the other. The inductor subassembly has a plurality of magnetic poles and the armature subass... | 03/22/2011 |
| 7898139 | Variable effort steering actuator A magnetic actuator, comprising, an inner ring, an outer ring disposed around the inner ring, a first pair of inner teeth disposed on the inner ring that partially define a gap between the first pair of inner teeth having a first angular dimension, a second pair of ... | 03/01/2011 |
| 7880355 | Electromagnetic variable transmission An electromagnetically variable transmission includes an outer rotor and an inner rotor. The inner rotor is independently rotatable within a center aperture of the outer rotor. The outer rotor is independently rotatable about the inner rotor. One of the rotors has a... | 02/01/2011 |
| 7791235 | Variable magnetic coupling of rotating machinery A system for transferring torque between a pair of independently, concurrently rotating shafts of a turbofan engine includes a magnetic gearbox. The magnetic gearbox has a first ring structure, a second ring structure and an intermediate ring structure. Each ring st... | 09/07/2010 |
| 7781930 | Accessory drive system with RD motor An accessory drive system includes a stator, a first rotor, and a second rotor, which respectively include armatures, permanent magnets, and first and second cores. One of the first and second rotors is connected to an accessory, and the other to an internal combust... | 08/24/2010 |
| 7687956 | Drive motor system A motor drive system is provided. The system includes a torque converter for receiving a rotational motion from a source and producing a rotational output, the torque converter having a first body rotatable about a first axis, a plurality of first magnets mounted to... | 03/30/2010 |
| 7687955 | Braking device for a camshaft adjuster In a braking device for a camshaft adjuster of an internal combustion engine wherein the camshaft adjuster includes at least two adjustment inputs, a respective braking element is provided for each adjustment input to brake the respective adjustment input, the braki... | 03/30/2010 |
| 7626297 | Mass magnifier using magnetic fields and mu-metal to provide an energy storage flywheel for use in conventional, microtechnology, and nanotechnology engines A mass magnifier is created by combining the properties of permanent magnets or electromagnets with the property of mu-metal to create a novel energy storage device. In a system mu-metal is placed in the magnetic field created by a magnet or electromagnetic in a man... | 12/01/2009 |
| 7622839 | Magnetic belt and roller system A belt and roller system comprising a roller having a permanent magnet sandwiched in between a pair of temporarily magnetic disks with the magnetism of the disks induced by the permanent magnet. Each temporarily magnetic disk may be steel. Each pole of the permanent... | 11/24/2009 |
| 7608961 | Torque converter and system using the same A torque converter device includes a first body having a first radius and a first thickness, a first plurality of magnets mounted in the first body, the first plurality of magnets including a plurality of magnet pairs, each of the magnet pairs being axially disposed... | 10/27/2009 |
| 7582997 | Arrangement for conveying fluids An arrangement for conveying fluids has a fluid pump (174) having a rotatably journaled pump wheel (172) that is joined to a first permanent magnet (186) and an electronically commutated internal-rotor motor (152) having a stator (154 | 09/01/2009 |
| 7531930 | Energy producing magnetic converter An energy producing magnetic converter is provided that outputs both electrical and mechanical energy. The converter includes a controller assembly rotatably secured between a plurality of field coil assemblies and a plurality of magnets. During a rotation of the co... | 05/12/2009 |
| 7528514 | Centrifugal magnetic clutch A centrifugal magnetic clutch device includes, an input shaft and, a plurality of input magnets that are rotatable about an axis of the input shaft, and are radially movable relative to the input shaft axis, and are rotationally fixed to the input shaft. The device ... | 05/05/2009 |
| 7485996 | Position retention device A position retention device includes a pivot member having a mounting axle, a cylindrical seat, a cylindrical housing and an annular member. A cylindrical seat is mounted co-axially on the mounting axle of the pivot member, and has pluralities of circumferentially f... | 02/03/2009 |
| 7471024 | Apparatus for power transmission by magnetic force and method thereof An apparatus and a method for transmitting power using magnetic force. The apparatus comprises a driving rotary element rotated by a driving motor; and at least one driven rotary element brought into contact with the driving rotary element by an attractive force and... | 12/30/2008 |
| 7459820 | Magnetic belt and roller system A belt and roller system comprising a roller having a permanent magnet sandwiched in between a pair of temporarily magnetic disks with the magnetism of the disks induced by the permanent magnet. For example, each temporarily magnetic disk may be steel. Each pole of ... | 12/02/2008 |
| 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 peripheral electromagnets affixed to the output shaft, a transfer drum... | 11/11/2008 |
| 7446446 | Rotary electronic component A rotary electronic component of the present invention has a sealed structure for the upper part of a contact section toward the side of an operating knob. In this structure, a rotor with a lower ring magnet is rotatably disposed on a concavity of a case with an ope... | 11/04/2008 |
| 7425121 | Rotary vane pump A pump assembly (100) having a pump housing (206 and 208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each van... | 09/16/2008 |
| 7411321 | Electromagnetic engine An electromagnetic engine has inner and outer rotors having magnets of opposite polarity mounted thereon. Output is taken from the inner rotor, which is free to unidirectionally rotate. The outer rotor is caused to oscillate, the force of magnetic repulsion between ... | 08/12/2008 |
| 7400075 | Rotating apparatus using a magnet and rotating decoration employing the same A rotating apparatus includes a separating member, at least one movable magnet, and at least one passive magnet. The separating member is made of a nonmagnetic material, and interposed between the movable magnet and the passive magnet. The movable magnet is relative... | 07/15/2008 |
| 7368838 | High efficiency voice coil motor Methods and apparatus for increasing the efficiency of a voice coil motor (VCM) are disclosed. According to one aspect of the present invention, a cylindrical and radially symmetric VCM includes a plurality of sets of magnets, and a single coil. The plurality of set... | 05/06/2008 |
| 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 |
| 7357195 | Power tool and gear unit assembled therein A power tool including a gear unit provided with a load moderating mechanism capable of reducing noise and prolonging service life. A coupling is force fitted with a spindle at a predetermined pressure allowing the spindle and the coupling to rotate relative to each... | 04/15/2008 |
| 7346985 | Bearing assembly spacer adjustment system and method for adjusting spacer A system for adjusting at least one spacer of a bearing assembly includes a force-transmitting member and a preload regulator. The force-transmitting member is configured to operatively receive a force and to transmit the force to an adjustable spacer. The preload r... | 03/25/2008 |
| 7342337 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 03/11/2008 |
| 7338266 | Screw pump and method of operating the same A screw pump includes a pair of screw rotors (2a, 2b) having teeth which are held in mesh with each other for drawing and discharging a fluid by rotating the screw rotors (2a, 2b) synchronously in opposite dire... | 03/04/2008 |
| 7336011 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 02/26/2008 |
| 7336010 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 02/26/2008 |
| 7329974 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 02/12/2008 |
| 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 |
| 7325361 | Apparatus and method for providing a modular sliding door mechanism A modular drive assembly for a sliding door, comprising: a guide track having a hinge slidably received therein; a pair of pulleys disposed on either end of the guide track; a pair of cables each having an end that is secured to the hinge and the other end is secure... | 02/05/2008 |
| 7312548 | Torque converter and system using the same A torque converter device comprises a flywheel rotatable about a first axis, the flywheel including a first body portion having a first radius from a circumferential surface and a first radius of curvature, a first plurality of magnets mounted in the first body port... | 12/25/2007 |
| 7309941 | Rotating electric machine and electric vehicle A rotating electric machine according to the present invention includes: a rotation axis extending along a first direction; a first rotor for coupling with the rotation axis to rotate together with the rotation axis; a first stator disposed so as to oppose the first... | 12/18/2007 |
| 7294947 | Apparatus for transferring torque magnetically An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets, the secondary rotary member with electro-conductive materials. The secondary rotary member also having magn... | 11/13/2007 |
