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| Number | Title | Issue Date |
| 8106546 | Reciprocating vibrator A reciprocating vibrator able to prevent detachment of a spindle even without an outer cover, that is, a vibration linear actuator provided with a ring-shaped weight 20 having a permanent magnet 30, 31 at its inner circumference side, a first plate spr... | 01/31/2012 |
| 8097991 | Reciprocating vibration generator A reciprocating vibration generator of a structure enabling force of a reciprocating vibrating body striking a coil to be absorbed by magnetic fluid even if an external impact force is applied, that is, a reciprocating vibration generator provided in a case body ... | 01/17/2012 |
| 8080906 | Generator for converting mechanical vibrational energy into electrical energy An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a substantially annular high-permeability core, the core including at least one magnet therein to define a magnetic circuit... | 12/20/2011 |
| 7868492 | Nano-positioning electromagnetic linear actuator A flexure for an electromagnetic nano-positioning linear actuator having a support and an actuating body, the flexure comprising: a first resilient end for attaching to the support; a second resilient end for attaching to the actuating body; and a substantially rigi... | 01/11/2011 |
| 7309933 | Vibrator for acting on an object in a predetermined direction and apparatus for producing concrete blocks The invention relates to a vibrator for acting on an object in a predetermined direction, comprising a casing and two identical, synchronously driven, electric linear motor coils arranged mirror-symmetrically therein, between which coils there is an armature which c... | 12/18/2007 |
| 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 |
| 7249416 | Comb-vibration preventing structure for hair cutter Disclosed is a comb-vibration preventing structure for a hair cutter including a cutter body and a cutting-length adjusting comb adapted to be fitted on an upper portion of the cutter body and vertically moved in a sliding manner so as to adjust a cutting length. Th... | 07/31/2007 |
| 7245049 | Vibrator and method for manufacturing the same A vibrator of the present invention comprises a coreless coil (2), a driver (4) including a magnet (4a) inserted in the coreless coil (2), a yoke (4b) for pinching the coreless coil (2) and facing the magnet ( | 07/17/2007 |
| 7242103 | Downhole electrical power generator A downhole electrical power generator. A downhole electrical power generating system includes a flow restricting device which variably restricts flow through an opening, the restricting device vibrating in response to flow through the opening and the restricting dev... | 07/10/2007 |
| 7239052 | Magnetic actuators A magnetic actuator. A yoke includes a first opening and a second opening, a frame, and a path. A first magnet is disposed in the first opening in the vicinity of the frame. A second magnet is disposed in the second opening in the vicinity of the frame. A coil compr... | 07/03/2007 |
| 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 |
| 7210843 | Multidirectional mixing of fluid samples A method of mixing fluid samples using an electromagnetic multidirectional shaker is provided. The shaker has a first electromagnet driving a first support panel in a first direction, and a second electromagnet driving a second support panel in a second direction. T... | 05/01/2007 |
| 7145280 | Stator for a dynamoelectric machine having a split ferromagnetic core A method and apparatus for production of stator windings for dynamoelectric mechines of different configurations is provided. The windings are preferably formed on a bobbin (10) or similar article, which may then be transferred onto an appropriate carrier suc... | 12/05/2006 |
| 7067945 | Apparatus for converting side-to-side driving motion to rotational motion with a spring assembly and system for tuning the spring assembly The apparatus for converting side-to-side to rotational motion for a workpiece includes a spring assembly with a movable base mounting element which is driven in a slightly arcuate reciprocal side-to-side motion and a fixed mounting element spaced apart from the bas... | 06/27/2006 |
| 7036207 | Stator assembly made from a plurality of toroidal core segments and motor using same A plurality of stator arc segments form a toroidal core for a stator assembly used to make a motor. In a preferred embodiment, a plurality of magnetic fields is created when electrical current is conducted through wire wound around poles on the toroidal core. A mono... | 05/02/2006 |
| 7033141 | Linear compressor and method for controlling the same A linear compressor and a method for controlling the same. The linear compressor automatically short-circuits part of a coil having no power-supply voltage in order to substantially prevent an excessive stroke from being generated when the linear compressor is initi... | 04/25/2006 |
| 7012350 | Segmented stator switched reluctance machine A switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a s... | 03/14/2006 |
| 6955539 | Characterization of motion of dual motor oral hygiene device An oral hygiene device is disclosed having at least two motors to simultaneously vibrate and impart motion upon the head portion of the oral hygiene device, most beneficially at the tip. A first motor is positioned in the handle portion of the device to impart a fir... | 10/18/2005 |
| 6933630 | Drive mechanisms for small electric appliances A small electric appliance drive mechanism includes a first drive component, a second drive component, and a coil configured to produce a magnetic field extending from the first drive component and acting on the second drive component. The first drive component and ... | 08/23/2005 |
| 6903474 | Electro-mechanical transducer An apparatus adopting an iron core and an inertial mass is disclosed for exerting high power output by converting a sound signal to vibration so as to stimulate the human hearing organs through the bones. A sound-to-vibration conversion apparatus comprises a housing... | 06/07/2005 |
| 6879065 | Linear actuator An improved linear actuator incorporates a DC motor whose stator is secured to a frame is provided for. To improve operational longevity and reliability of a linear actuator, the improved actuator includes a retention clutch and an axial load limiter. An axially con... | 04/12/2005 |
| 6734582 | Linear actuator using a rotating motor A linear actuator incorporates a DC motor whose stator is secured to a frame. A shaft is coupled to the rotor of the DC motor one end of which is circumferentially coupled to the inside of a torsion spring and the outer section of the torsion spring is coupled to th... | 05/11/2004 |
| 6674349 | Opening and/or closing control device, in particular for a switchgear apparatus such as a circuit breaker, and circuit breaker equipped with such a device The device according to the invention comprises an armature mechanically connected to an actuating rod of the contacts of the apparatus and movable in a support block between a rest position and an active position, at least one permanent magnet and at lea... | 01/06/2004 |
| 6448673 | Controlled high speed reciprocating angular motion actuator A reciprocating rotary action actuator consisting of a rotor and stator that can be added to a bi-directional rotary motor or galvanometer scanner, where the stator has a ring magnet and a pair of soft iron pole pieces that concentrate the flux of the rin... | 09/10/2002 |
| 6400056 | Stator of rotary electric machine and method for making the same A stator core has a plurality of slots. Insulating members are formed into a cylindrical shape and are inserted into the slots. Axial ends of the insulating members are expanded respectively and deformation marks thinner than the other portion are formed ... | 06/04/2002 |
| 6377145 | Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance A vibration actuator includes an electromechanical transducer having a magnetic circuit (1-4) and a driving coil (5), a support frame (9), and a damper (270) elastically supporting the magnetic circuit onto the support frame to flexibly damp the vibration... | 04/23/2002 |
| 6249064 | Magneto-striction microactuator Apparatus and method for providing microactuator positional control in a disc drive having a rotatable disc on which a plurality of tracks are defined and an actuator assembly which supports a head adjacent the tracks. An actuator motor is used to provide... | 06/19/2001 |
| 6188149 | Linear motor for a textile machine as well as an apparatus with a linear motor and a weaving machine with an apparatus A linear motor for controlling motions of thread being woven on a weaving machine is disclosed. The linear motor contains a stator (1) which produces a magnetic field, an armature (2) which is arranged in the magnetic field, and two flexible mounting part... | 02/13/2001 |
| 6163092 | Reciprocating motor with arcuate pole faces A motor for providing reciprocating motion comprises a stator defining an arcuate pole face and a flat pole face and an armature defining a complimentary arcuate pole face and flat pole face, where the armature rotates about a pivot point in order to main... | 12/19/2000 |
| 6121697 | Reciprocating motor with internal pivot point A motor for providing reciprocating motion comprises a stator defining an arcuate pole face and a flat pole face and an armature defining a complimentary arcuate pole face and flat pole face, where the armature rotates about a pivot internal to the struct... | 09/19/2000 |
| 5886442 | Magnetic attraction driving engine using permanent magnet A magnetic attraction driving engine utilizing a permanent magnet is provided with a permanent magnet, an electromagnet formed by winding a coil on a magnetic core with one end thereof stuck to one magnetic pole end of the permanent magnet, an excitation ... | 03/23/1999 |
| 5787587 | Vibrator motor A vibrator motor for electric hair clippers, massagers and the like includes a fixed magnetically permeable piece and a moving magnetically permeable piece. The fixed and moving pieces form a plurality of flux gap zones between selected corresponding surf... | 08/04/1998 |
| 5682132 | Vibrating module A vibrating module for generating a mainly non-audible alert signal comprises a vibrating mass supported by at least one spring and having a weight and a magnet. A drive coil is supported by a coil frame for placing the vibrating mass in a continuous reci... | 10/28/1997 |
| 5602432 | Silent warning vibration generator for portable equipment A vibration generator in a pager or massage device for giving vibration to the user including a coil fixed to a base and a movable member vibratably supported on the base. The movable member has inner and outer yokes defining therebetween a magnet gap in ... | 02/11/1997 |
| 5546069 | Taut armature resonant impulse transducer An taut armature, resonant impulse transducer (100) includes an armature (12), including an upper (14) and a lower (16) non-linear resonant suspension member, each including at least two juxtaposed planar compound beams (202, 204 and 206, 208) connected s... | 08/13/1996 |
| 5406152 | Electromagnetic vibration generator An electromagnetic vibration generator includes a housing, a U-shaped magnet core disposed in the housing and having parallel-extending legs each terminating in a pole face, and an excitation winding inserted on each core leg. The magnet core is encased i... | 04/11/1995 |
| 5327120 | Stabilized electromagnetic resonant armature tactile vibrator A resonant armature system (109, 114, 116) for generating a vibrating motion in response to an alternating excitation force includes at least two planar suspension members (109), substantially parallel to each other and separated by a distance. The planar... | 07/05/1994 |
| 5287027 | Electromagnetic drive for use with vibratory conveyors An electromechanical exciter for use in driving a vibratory conveyor includes a non-linear spring system which provides an increase in spring force as the stroke of the electromagnet increases.... | 02/15/1994 |
| 5263218 | Vibrating toothbrush using a magnetic driver A toothbrush which includes a toothbrush body (12) and a lever arm (14) having toothbrush bristles (18) at one end thereof. The lever arm (14) is mounted for pivotal movement at a pivot member (16) which is in the vicinity of the other end of the lever ar... | 11/23/1993 |
| 5140203 | Control motor for a servo-valve A control motor for a servo-valve includes elements of a control motor including a yoke, permanent magnet, control coil and armature mounted to one another. An output member transmits the pivotal movements of the armature. A frequency dependent passive el... | 08/18/1992 |
