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| Number | Title | Issue Date |
| 7989995 | Cap and seal for windshield wiper drive for vehicles A windshield wiper drive (1) is provided for the output shaft (4) with a protective cap (15) across a longitudinal region. The protective cap (15) is supported between the terminal supports thereof against the drive shaft (4) and t... | 08/02/2011 |
| 7719145 | Enhanced internal electrical generators Enhanced internal electrical generators are provided which include pole pieces that form air gaps flanked with conductive wire coils. Rotatable armatures supporting permanent magnets are arranged to swing or revolve relative to the air gaps such that the magnetic fl... | 05/18/2010 |
| 7485992 | Armature type electrical generators for self powered cell phones Self powered cell phones are provided with an armature which is supported to freely oscillate in swinging opposite motions and which includes a wire coil configured to intersect the magnetic flux of a permanent magnet during such motions, which generates electrical ... | 02/03/2009 |
| 7482718 | Enhanced internal electrical generator powered by hand-crank Enhanced internal electrical generators are provided which include pole pieces that form air gaps flanked with conductive wire coils. Rotatable armatures supporting permanent magnets are arranged to swing or revolve relative to the air gaps such that the magnetic fl... | 01/27/2009 |
| 7440689 | Electromagnetically actuated adjusting apparatus for lens An electromagnetically actuated adjusting apparatus for lens is disclosed. The adjusting apparatus comprises a body capable of furnishing a lens inside, at least one permanent magnet, a first magnetic conductor and a second magnetic conductor. The first and the seco... | 10/21/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7288863 | Electric appliances having electric motors for driving oscillatory elements an electric appliance includes an electric motor having a first oscillatory element, a second oscillatory element and an electric coil configured to generate a magnetic field to drive the first and second oscillatory elements. The electric appliance also includes a ... | 10/30/2007 |
| 7279815 | Swing motor A swing motor having an opening formed asymmetrically inside a stator. The swing motor is formed with an asymmetrical opening, in particular in a semicircular shape inside the stator. The opening is provided with a plurality of salient poles wound with coils. Electr... | 10/09/2007 |
| 7242118 | Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motors A toroidal-coil multi-phase linear stepping motor includes a cylindrical housing, an axis coaxially arranged inside the housing, a cylindrical element supported by the axis and an armature fixed to the housing around the cylindrical element through an air gap in the... | 07/10/2007 |
| 7239053 | Vibrator motor A vibrator motor has a stationary piece and a moving piece hinged at one end. The moving piece does not generate substantial internal spring forces under the influence of an electromagnetic field, because it does not have a tail bracket. Other parts of conventional ... | 07/03/2007 |
| 7126497 | Self-powered switch initiation system A self-powered switching system using electromechanical generators generates power for activation of a latching relay. The electromechanical generators comprise electroactive elements or magnetic based microgenerators that may be mechanically actuated to generate el... | 10/24/2006 |
| 7048057 | Protection scheme and method for deployment of artificial lift devices in a wellbore A protection system for an artificial lift device including but not limited to electrical submersible pump (ESP) and an electrical submersible progressing cavity pup (ESPCP). The artificial lift device is suspended on a tubing string into a wellbore where the artifi... | 05/23/2006 |
| 6981807 | Electromagnetic drive device and light quantity adjustment device using the same An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor disposed in the coil frame to be rotatable through a rotational shaft, a transmission arm attached to the rotational shaft for outputting a rotation of the magnet rotor... | 01/03/2006 |
| 6960848 | Electromagnetic drive device and light quantity adjustment device using the same An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor rotatably disposed in the coil frame through a rotational shaft, a transmission member for transmitting a rotation of the magnet rotor, and a coil wound around an outer... | 11/01/2005 |
| 6935476 | Clutch having a multiple pole electromagnetic actuator for transfer cases and the like A clutch having a multiple pole electromagnetic actuator is useful in motor vehicle powertrain components such as transaxles, transfer cases, transmissions, differentials and the like. The electromagnetic actuator includes a stationary coil, a rotating, multiple pol... | 08/30/2005 |
| 6933818 | Torque motors A torque motor may include a rotor having at least two magnets disposed thereon, and a stator having a core and at least one coil. The magnets are arranged and constructed so that the outer surfaces thereof alternately have a N pole and a S pole. The magnets cover t... | 08/23/2005 |
| 6902012 | Percussion electrical hand-held tool An electrical hand held tool for producing at least a percussion movement of a working tool includes an electrical drive, a first, oscillating subassembly including a percussion mechanism (2) and a rotor (5) of the electrical drive for transmitting tor... | 06/07/2005 |
| 6838788 | Motor structure for reciprocating compressor A motor structure for a reciprocating compressor, by which an power lowering of the motor can be prevented by installing a magnet to be eccentric toward a direction compressing a fluid to compensate a backward moved amount of the magnet by compression pressure durin... | 01/04/2005 |
| 6815856 | Tangential torque support A superconducting rotor assembly includes an axial shaft and a winding support structure. A torque tube is connected to this winding support structure. An interconnection assembly mechanically couples the torque tube to the axial shaft. This interconnection assembly... | 11/09/2004 |
| 6803840 | Pattern-aligned carbon nanotube growth and tunable resonator apparatus A tunable nanomechanical oscillator device and system is provided. The nanomechanical oscillator device comprising at least one nanoresonator, such as a suspended nanotube, designed such that injecting charge density into the tube (e.g. by applying a capacitively-cu... | 10/12/2004 |
| 6713920 | Linear actuator using two rotors A linear actuator capable of inducing a linear motion as well as a rotational motion using only two rotors is provided. The linear actuator includes: first and second rotors connected to respective driving force sources; a linear motion unit formed on the first roto... | 03/30/2004 |
| 6518685 | Multi-position actuator or sector motor A multi-position actuator with three electromagnetic poles where the airgap of selected pole(s) is made different from the remaining pole(s). The multi-position actuator comprises a housing, an armature rotatably mounted in the housing, and three poles jo... | 02/11/2003 |
| 6441517 | Drive mechanism for oscillating electric products of personal use, particularly dry shavers The invention is directed to a drive mechanism for driving a working unit, movable in a rotary oscillating manner, of domestic appliances, particularly dry shavers. The drive mechanism of the invention includes a permanent magnet motor which has a stator ... | 08/27/2002 |
| 6369469 | Poly phase linear alternator A poly phase linear alternator comprising a housing. An input power gear train is mounted in one end of the housing. The input power gear train is rotatably driven by an outside power source. A pair of track guide rails are each mounted in an opposite sid... | 04/09/2002 |
| 6265794 | Method for tuning the resonant frequency of crossed-flexure pivot galvanometers A stator is adjustably attached to the frame of a crossed-flexure pivot galvanometer. The stator acts on a permanent-magnetic rotor, having radially facing poles, causing the rotor to torsionally oscillate, which causes the rotor to be displaced from an a... | 07/24/2001 |
| 6166465 | Vibration generating mechanism using repulsive forces of permanent magnets A vibration generating mechanism includes at least first and second permanent magnets spaced from each other with the same magnetic poles opposed to each other. The first permanent magnet is coupled to a link mechanism so that the drive force of a drive s... | 12/26/2000 |
| 6027444 | Vibrator The invention concerns a vibrator comprising an engagement face (11) which is adapted to engage a part of a body, and which is driven by an electric motor (18). The vibrator moreover comprises a housing (1) comprising a shaft (9) connected with the motor,... | 02/22/2000 |
| 5955801 | Microfabricated microengine with constant rotation rate A microengine uses two synchronized linear actuators as a power source and converts oscillatory motion from the actuators into constant rotational motion via direct linkage connection to an output gear or wheel. The microengine provides output in the form... | 09/21/1999 |
| 5923107 | Vibrator A vibrator comprising an engagement face (11) which is adapted to engage a part of a body, and which is driven by an electric motor (18). The vibrator moreover comprises a housing (1) comprising a shaft (9) connected with the motor, and the vibrator has a... | 07/13/1999 |
| 5844516 | Method and apparatus for wireless remote control The invention relates to a method and apparatus for wireless remote control. A transmitter (1) with no batteries receives its operating power from a generator (3) which produces electrical energy inductively upon turning or pressing an operating element (... | 12/01/1998 |
| 5804933 | Method for operating an adjusting apparatus and means for adjusting a positional device A method and apparatus for operating a positioning device for an adjustable device. The positioning device is mechanically actuated by a bearing connected to a pivotable armature that interacts magnetically with an electromagnet. The electromagnet is ener... | 09/08/1998 |
| 5780948 | Vibratory structure, method for controlling natural frequency thereof and sensor and actuator adopting the vibratory structure A vibratory structure and a method for controlling the natural frequency thereof are provided. The vibratory structure has an elastic member one end portion of which is fixed to a first support end, an inertial object for vibrating by the elastic force of... | 07/14/1998 |
| 5751078 | Reactionless, momentum compensated payload positioner A reactionless momentum compensated payload positioner adapted to be mounted on a supporting body for providing momentum compensation of an oscillatory and scanning payload and for suppressing reactions in the supporting body to the torques that occur as ... | 05/12/1998 |
| 5723918 | Bi-directional actuator using a random direction AC motor An actuator uses an AC motor assembly having a random chance of rotating in either direction upon stalling or first receiving power, to provide torque for operating its output member. The output member operates from one extreme position to another. Limit ... | 03/03/1998 |
| 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 the driven rotor and limits both clock-wise (CW) and coun... | 02/10/1998 |
| 5679991 | Eccentric-and-oscillator engagement structure The invention is directed to a device for converting a circular motion into a reciprocating motion, which provides for improved guiding of a drive pin arranged on an eccentric within a slide slot of a drive member. The slide slot is bounded by at least tw... | 10/21/1997 |
| 5679988 | Rocking motor A rocking motor comprises a coil wound around a hollow coil bobbin. A rotor is rotatably mounted at a position close to an end portion of the coil bobbin. The rotor has a center shaft and a permanent magnet and is magnetized with two poles such that the p... | 10/21/1997 |
| 5554899 | Electric Actuator An electric actuator which is used for e.g. an arm of an industrial robot includes a composite shaft having a ball screw groove and a ball spline groove, a hollow motor through which the composite shaft extends, a ball screw nut fitted threadedly about th... | 09/10/1996 |
| 5545943 | Variable air-gap type driving device The variable air-gap type driving detector of the present invention for obtaining low speed and high torque outputs required to drive, for example, joints of industrial robots is provided with an elastic supporting means 22, whose one end is supported on ... | 08/13/1996 |
| 5543678 | Flat motors A flat motor. The flat motor comprises a substrate, a cantilevered, resilient lever arm mounted, by a passive end, on the substrate; and a shape-memory transducer acting on the lever arm wherein movement of the transducer deflects the lever arm.... | 08/06/1996 |
