Abstract: An actuator comprising a linear electrical machine (LEM) having a stator with a stator bore and a translator axially movable within the stator bore and defining a magnetic circuit airgap therebetween, at least one fluid bearing journal formed on the translator, at least one fluid bearing providing a bearing gap adjacent the translator to allow the translator to move axially within the stator bore, a preload chamber for applying a preload force to the translator, wherein the preload chamber is defined by a side wall, a first end wall and a second end wall at least part of which is movable with the translator, and wherein the bearing gap and the magnetic circuit airgap are coaxial.

Abstract: A compressor is disclosed. The compressor compressing and discharging a refrigerant sucked into a cylinder includes a cylinder forming a compression space of the refrigerant and having a cylindrical shape; a piston configured to reciprocate in the cylinder along an axial direction and having a cylindrical shape; a suction valve disposed at a front of the piston; a plate disposed in a rear of the piston, the plate comprising a flow groove into which the refrigerant is sucked; and a rod extending along the axial direction, one end of the rod being disposed on the suction valve, and other end of the rod being disposed on the plate.

Abstract: There is provided a vacuum volume reduction system having a volume reduction assembly of a fluid fill assembly coupled to a station wall of a vacuum tube vehicle station, to reduce a volume, under vacuum, in the vacuum tube vehicle station, when a vacuum transport tube vehicle is positioned in the volume at the vacuum tube vehicle station. The fluid fill assembly includes one or more containers, each containing a fluid, and fluid transport member(s), to transport the fluid from the container(s) to one or more enclosed volume portions formed between an exterior of the vacuum transport tube vehicle and an interior of the station wall. The fluid fill assembly further includes one or more fluid pump assemblies attached to the fluid transport member(s), and a control and power system. The vacuum volume reduction system further includes recessed area(s), a vent-to-vacuum assembly coupled to the recessed area(s), and seal elements.

Abstract: A second electric suspension device includes a second electromagnetic actuator that is provided between the vehicle body and a wheel of a vehicle and generates a driving force for damping vibration of the vehicle. The second electromagnetic actuator includes a columnar rod member and a casing surrounding the rod member and being provided capable of moving forward and backward relative to the rod member in the axial direction. Casing-side armature coils are provided in the casing in the axial direction, whereas magnets are provided in the rod member in the axial direction in such a manner as to face part of the casing-side armature coils in the casing. The magnets are formed by permanent magnets and electromagnets including rod-side armature coils.

Abstract: A double helix actuator is disclosed that includes a double helix coil wound around a movable proof mass that is enclosed within a magnetic structure. The double helix coil and the magnetic structure are arranged relative to each other so that the magnetic field generated by the entirety of the double helix coil contributes to a linear force direction of the actuator. The double helix actuator produces a greater linear force density compared to traditional racetrack coil actuators, where only a portion of the coil contributes to the linear force. The double helix actuator also produces torque in addition to linear force which allows the double helix to provide unique haptic sensations in a variety of applications.

Abstract: An electro-acoustic transducer includes a diaphragm and an electro-magnetic motor that is coupled to the diaphragm. The motor includes a voice coil and a magnetic circuit that defines an air gap within which the voice coil is at least partially disposed. The magnetic circuit includes a first, axially polarized permanent magnet that provides a first magnetic flux path and a second, radially polarized permanent magnet that provides a second magnetic flux path. The first and second magnetic flux paths are arranged to interact with the voice coil to drive motion of the diaphragm.

Abstract: A motor coil substrate includes a flexible substrate, and multiple coils formed on the flexible substrate such that each of the coils has a spiral shape. The flexible substrate has multiple folding lines formed and the multiple coils positioned such that the flexible substrate is folded at the folding lines and wound around a magnet and that an m-th coil and an (m+1)-th coil of the coils partially overlap one another when folded at the folding lines.

Abstract: In the movable body one of a magnet and a core that has a magnetic pole surface disposed so as to face a magnetic pole surface of the magnet via an air gap and around which a coil is wound is provided on each of both sides across the shaft of the support shaft part in the movable body, and in the fixing body the other is provided facing the magnet or core disposed on both sides of the shaft of the support shaft part in the movable body. The movable body is elastically supported by magnetic attractive force generated between the magnetic pole surfaces at each of both sides across the shaft and vibrates back and forth in the direction of the shaft of the support shaft part with respect to the fixing body by the coil interacting with the magnet.

Abstract: Disclosed is an inductor device including a first curved metal plate, a second curved metal plate below and substantially vertically aligned with the first curved metal plate, and a first elongated via vertically aligned between the first curved metal plate and the second curved metal plate, the first elongated via configured to conductively couple the first curved metal plate to the second curved metal plate and having an aspect ratio of a width to a height of the first elongated via of at least approximately 2 to 1.

Abstract: A damage evaluation apparatus, which is used on a concrete structure having an embedded tendon to be evaluated for damage. The damage apparatus includes a magnetizer for generating magnetic force, and a detector for detecting a change in magnetism produced from a damaged area of the tendon. The magnetizer includes an excitation coil; an iron core passed through a center hole of the excitation coil; and a pair of columnar yokes connected to respective ends of the iron core and each extending toward the surface of the concrete. By passing an electric current through the excitation coil, a magnetic circuit is formed by the yoke shaft, the pair of columnar yokes, and the tendon over a range thereof situated between a pair of plate-shaped yokes. Current that flows through the excitation coil is controlled such that the magnetic flux density of the tendon is rendered constant.

Abstract: A damage evaluation apparatus, to evaluate damage to a tendon embedded in concrete. The apparatus includes a magnetizer for generating magnetic force, and a detector for detecting change in magnetism produced from a damaged area of the tendon when magnetized. The magnetizer includes a excitation coil; an iron core passing through a center hole of the excitation coil; a pair of columnar yokes connected to respective ends of the iron core and extending toward the concrete; and a pair of plate-shaped yokes connected to the pair of columnar yokes at a distal end thereof for forming magnetic poles having spread along the surface of the concrete. By passing an electric current through the excitation coil, a magnetic circuit is formed by the yoke shaft, the pair of columnar yokes, the pair of plate-shaped yokes, and the tendon over a range thereof situated between the pair of plate-shaped yokes.

Abstract: An apparatus for manipulating a material is provided. The apparatus may comprise a magnetic device arranged in a three-dimensional configuration. The apparatus may comprise a surface on which at least one carrier is configured to move. The magnetic device may be configured to provide a magnetic field for driving the carrier on the surface to manipulate a material. The apparatus may comprise a controller configured to control the magnetic device to modulate the magnetic field. The controller may be further configured to detect a position and/or motion of the carrier.

Abstract: The disclosed device includes a single electric motor for linear and rotary movement with a stator. The stator includes a multi-phase coil arrangement with a plurality of coils or coil sets and a rotor. The rotor is movable in an axial direction of a rotational axis thereof and includes a plurality of poles respectively with at least one permanent magnet The device further includes a control unit operative to determine currents (Ir, Is, It) by calculation formulas and based on at least a number of coils or coil sets of the plurality of coils or coil sets, and an angle of rotation of said rotor and a parameter depending on an axial position of the rotor. Each current (Ir, Is, It) has a current component (Ir?, Is?, It?) for generating a torque and a current component (Irx, Isx, Itx) for generating an axial force, and to supply the determined currents in open loop to the number of coils or coil sets, so that the sum of the currents is zero. Further, at least one of the stator and the rotor, includes a back-iron.

Abstract: A linear compressor is provided that may include a shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a frame to which the cylinder may be fixed, a piston that reciprocates within the cylinder in an axial direction and compresses a refrigerant supplied to the compression space, a discharge valve that discharges the refrigerant compressed in the compression space, a discharge cover coupled to the frame and defining a discharge space in which the refrigerant discharged from the compression space by opening of the discharge valve may be collected, a valve spring that supports the discharge valve, and a support integrally formed with the valve spring by insert injection molding and coupled to the discharge cover. The valve spring may define one or more holes filled with a molding liquid used to form the support in the insert injection molding of the support.

Abstract: A vitrectomy apparatus is provided, including a disposable cutter that incorporates a linear voice coil motor to generate consistent and rapid guillotine action without the use of a rotary motor or traditional linear motor. The apparatus includes voice coil actuator to provide for a forward and backward reciprocating motion cutting blade.

Abstract: A modular tube volume reduction assembly for use at a vacuum tube vehicle station is provided. The assembly includes a modular station vacuum tube having a tube volume and a plurality of cavities longitudinally formed around a circumference of the modular station vacuum tube, and a volume reduction assembly integrated with the modular station vacuum tube, where the volume reduction assembly includes a plurality of blocks longitudinally coupled to a cavity interior of each of the plurality of cavities. The assembly includes a control system coupled between the modular station vacuum tube and the blocks. The control system radially moves the blocks to and from a vehicle outer surface of a vacuum transport tube vehicle at the vacuum tube vehicle station. The assembly displaces the tube volume between a station wall and the vehicle outer surface, and reduces the volume to be evacuated at the vacuum tube vehicle station.

Abstract: An optical unit includes: a cylindrical fixing member configured to retain at least one of an object-side fixed lens group and an image-side fixed lens group; a cylindrical movable member configured to retain a movable lens group between the groups and arranged on a radial-direction inner side of the fixing member slidablly with respect to the fixing member, the cylindrical movable member having a same central axis as the cylindrical fixing member; a voice coil motor including: a coil arranged in the fixing member; and magnets arranged on the movable member and magnetically polarized in a direction intersecting with the central axis, the voice coil motor being capable of moving the movable member relative to the fixing member along a direction of the central axis; and a rotation restricting member configured to restrict rotation of the movable member about the central axis with respect to the fixing member.

Abstract: A linear motor includes a forcer having a plurality of teeth spaced apart along a longitudinal axis of the forcer. At least some teeth arranged about a longitudinal center of the forcer are dimensioned different from at least some other teeth arranged at ends of the forcer distal from the longitudinal center. The teeth may be dimensioned to define a pocket relative to the longitudinal axis of the forcer.

Abstract: A stator includes core pieces in which at least first and second laminate members are laminated, the first laminate member includes a first tooth portion and a first core back portion, the second laminate member includes a second tooth portion and a second core back portion, the first core back portion includes a first protrusion on one side thereof in a circumferential direction and a first recess on the other side thereof in the circumferential direction, the second core back portion includes a second recess on one side thereof in a circumferential direction and a second protrusion on the other side thereof in the circumferential direction, and an area of a region in which the first and second core back portions of the core piece adjacent thereto overlap in a lamination direction is greater than a circumferential cross-sectional area of the first core back portion circumferentially inward from the first protrusion.

Abstract: A method of compensating for an effect of temperature includes providing a set of magnetic sensors arranged along a sensing path. Each magnetic sensor is adapted to sense a magnetic field created by a magnetic actuator which can move along the sensing path and to provide a sensing signal indicative of a position and/or a displacement of the magnetic actuator relative to the sensing path. The method includes selecting one or more magnetic sensors from the set of magnetic sensors for use as temperature sensors, estimating a distribution of temperature over at least a portion of the sensing path based on the sensing signals output by the one or more magnetic sensors selected as temperature sensors, and compensating for the effect of temperature on the sensing signals output by one or more magnetic sensors of the set of magnetic sensors using the distribution of temperature that was estimated.

Abstract: Systems and methods for constructing permanent magnet electric motors in which rotors have magnetically permeable end rings that are active for torque production. In one embodiment, a rotor section has a set of flat, generally annular laminations stacked on an inner rotor sleeve, with a pair of end rings positioned at opposing ends of the lamination stack to secure the stack. One or both of the end rings is made of a magnetically permeable and highly resistive material such as a soft magnetic composite, so that the end ring(s) actively produce torque during operation of the motor without significant increase in core loss at end rings. A set of permanent magnets are installed in or on the rotor core formed by the laminations. These magnets or other magnets may be positioned to axially overlap with the end rings and aid active torque production by the end rings.

Abstract: An optical unit includes: a fixed portion configured to hold at least one of an object side fixed lens group and an image side fixed lens group; a movable portion configured to hold a movable lens group between the object side fixed lens group and the image side fixed lens group; and a voice coil motor configured to relatively move the movable portion with respect to the fixed portion in a direction of a central axis, the voice coil motor including a coil arranged on the fixed portion, and magnets magnetically polarized in directions orthogonal to the central axis and substantially symmetrical with respect to the central axis. At least two magnets adjacent to each other in a circumferential direction in a cross section orthogonal to the central axis are arranged so as to be shifted in opposite directions in a circumferential direction.

Abstract: A fluid pump is disclosed with a fluid pump housing, a first pole piece having a first polarity and positioned within the fluid pump housing, an opposing pole piece having a second polarity different from the first polarity, positioned within the fluid pump housing and spaced from the first pole piece, a wire coil comprising a coiled electrically conductive wire comprising a first end and a second end, the wire coil movably positioned between the first pole piece and the opposing pole piece, at least one membrane coupled between the fluid pump housing and the wire coil, the membrane configured to move responsive movement of the wire coil through elongation of a membrane suspension section, and at least one vent extending through a wall of the fluid pump housing to an fluid chamber immediately adjacent to the at least one membrane.

Abstract: Multi-layer printed circuit boards and methods of producing the same are disclosed. In one example, a multi-layer printed circuit board may include flat coils which are situated vertically one above the other and are connected electrically in series or in parallel in order to form a first solenoid coil. Two vertically adjacent flat coils may be arranged laterally offset in relation to one another in such a way that conductor track sections of one flat coil are arranged so as to vertically partially overlap with two conductor track sections of the other flat coil in a cross section perpendicular to a surface of the multi-layer printed circuit board.

Abstract: A multiphase IPT primary track conductor arrangement comprising a first phase conductor and a second phase conductor, the conductors being arranged substantially in a plane and so as to overlap each other and being arranged such that there is substantially balanced mutual coupling between the phase conductors.

Abstract: Embodiments of an electrical power generation device and methods of generating power are disclosed. One such method comprises creating magnetic flux forces generally transverse to a face of a magnet facing a center of a cylinder, moving a coil of wound conductive material partially through the center opening of the cylinder to produce the electric current and, routing resistive forces generated from the moving coil through an iron core, wherein the first coil is positioned concentrically about a first portion of the core, and further routing the resistive forces around the cylinder.

Abstract: The described embodiments relate to systems, methods, and apparatuses for collecting and testing particles emitted from a filter of a duct using an electromechanical scanning system that is contained within the duct. The electromechanical scanning system includes a stacked arrangement of ports that extend over a surface of the filter in order to collect particles that are passing through the filter. The stacked arrangement of ports is connected to a magnetic rail device that maneuvers the stacked arrangement of ports to, and between, distal ends of the filter. Control signals are sent to the magnetic rail device from a controller that is external to the housing and connected to electrodes located on a surface of the housing. The electrodes are sealed such that particles do not unintentionally escape from the duct.

Abstract: A washing machine appliance and a shifter assembly therefor are generally provided. The shifter assembly may include an agitator drive shaft, a motor, a wash basket drive shaft, and a clutch. The agitator drive shaft may extend along a drive axis. The motor may be operably connected to the agitator drive shaft to drive rotation thereof. The motor may include a rotor fixed to the agitator drive shaft and a stator rotationally fixed at a position radially inward from the rotor. The wash basket drive shaft may be rotationally independent from the agitator drive shaft. The clutch may be slidably disposed on the wash basket drive shaft. The clutch may be movable between an engaged position and a disengaged position. The disengaged position may provide the clutch in rotationally fixed attachment on the stator. The engaged position may provide the clutch away from the stator and rotatable relative thereto.

Abstract: Electric machine, including a stator on an at least partially electrically conductive housing located on a reference potential, on which are formed slot-like receptacles for stator windings, upon which slot-shaped receptacles are formed for the stator windings, wherein a closure element closing the receptacle on the side of the rotor is provided in each case in the receptacles, and a rotor rotatably mounted in the stator, wherein the closure element is provided with a flat, electrically conductive conductor region for shielding the stator windings from the rotor, wherein the conductor region is connected in an electrically conductive manner to the housing.

Abstract: A vibration generator includes a vibration transmission member and an exciter. The vibration transmission member is disposed in a seat beneath a seat surface of the seat so as to extend longitudinally in a horizontal direction of the seat surface and is able to transmit a vibration in an extending direction of the vibration transmission member in which the vibration transmission member extends longitudinally. The exciter includes a voice coil, a permanent magnet disposed in the vicinity of the voice coil, a yoke supporting the permanent magnet. The exciter transmits the vibration to the vibration transmission member as the yoke and the voice coil approach or leave to each other. The yoke and the voice coil approach or leave in the same direction as the extending direction of the vibration transmission member.

Abstract: A brushless dual rotor electromagnetic induction motor with an inner exciter rotor having a rotatable drive/input shaft, the inner exciter rotor generating a rotating magnetic field when the drive/input shaft is rotated, an outer carrier rotor surrounding the inner exciter rotor and being co-axial and concentric therewith, the outer carrier rotor having a rotatable carrier frame and a plurality of conductive elements, an electrical current being induced to flow through each of the conductive elements in response to the rotating magnetic field generated by the inner exciter rotor, a rotatable driven/output shaft which rotates in response to rotation of the rotatable carrier frame, and an outer stator surrounding the outer carrier rotor which interacts with the induced electrical current flowing through the conductive elements of the outer carrier rotor to thereby cause the rotatable carrier frame of the outer carrier rotor to rotate.

Abstract: An electric motor includes a configuration that directs at least a portion of an electric field generated by phase windings into a stator.

Abstract: The invention relates to an electrical linear induction motor which is adapted for tubular high speed transportation and constructed so that it contains an active tubular inductor (mover) made of ferromagnetic material carrying electrical windings in its slots and an outer passive inexpensive induct (stator) in shape of tube layered with conducting sheets. The mover can carry cargo inside its inner cavity, or one or more movers can be incorporated in a special vehicle movable inside the stator tube.

Abstract: An economical bi-parting door assembly for an aisle between two rows of data center IT racks is disclosed which is easy to assemble, has no floor track or leveling requirements, and an overhead suspension and drive assembly for the left and right door assemblies. Guide ribs and channels can be provided for the door leaves at the lower portions of the leaves and mating features are placed on the leading faces of the leaves. Some features are designed to work specifically with a containment system frame for server cabinets.

Abstract: A linear vibration motor is disclosed. The linear vibration motor, includes a housing provided with an accommodation space; a vibrator accommodated in the accommodation space; and an electromagnet accommodated in the accommodation space. The vibrator includes a weight having a through-hole and a plurality of permanent magnets engaging with an inner wall of the through-hole. The electromagnet is located in the through-hole and separated from the permanent magnets. The electromagnet includes an iron core and a coil around the iron core for producing magnet fields interacting with the permanent magnets further for producing attracting and repelling force to drive the vibrator to vibrate.

Abstract: A linear fader includes a slider that is configured to slide along a rail. The slider includes a magnet. The linear fader also includes a plurality of coils spaced along a length of the rail, one or more sensors configured to detect a position of the slider along the rail, and control circuitry operatively coupled to the plurality of coils and the one or more sensors. The control circuitry is configured to receive a signal corresponding to a first location of the slider from at least one of the one or more sensors, receive a desired location of the slider, and cause a first electrical current to pass through the plurality of coils, thereby generating a force on the slider in a direction toward the desired location.

Abstract: Disclosed is a pneumatic milling wheel cap section burr device, which includes a lifting cylinder, guide posts, guide sleeves, a lifting table, adjusting guide rails, an adjusting slide block, an adjusting cylinder, a connecting rod, a turnover platform, feeding guide rails, a feeding platform, a feeding cylinder, an air compressor and a pneumatic milling cutter. A servo motor drives a rotating table to turn over 90 degrees, and the clamped wheel can turn over 90 degrees, so that the wheel is upright; the lifting cylinder drives the lifting table to move up and down to adjust the height of the pneumatic milling cutter; and the adjusting cylinder adjusts the angle of the turnover platform to adjust the contact angle of the pneumatic milling cutter and the cap section edge.

Abstract: A wave winding for a stator of an electric machine is configured to be placed in a series of stator grooves located along a periphery of the machine to increase power and efficiency of the machine by avoiding losses, particularly during upper rotational speed range operation. The wave winding has at least two conductors for one respective phase of the machine. The conductors are interconnected in parallel and/or series and can be disposed at a given winding pitch in a number of at least two successive stator grooves of each magnetic pole and each phase of the machine in a sequence predefined for each phase and for one respective magnetic pole along the periphery of the machine. The predefined sequence at least of the conductors interconnected in parallel is transposed by at least one groove skip in at least one position along the periphery of the machine.

Abstract: A motor comprises an enclosure, a stator and a rotor, the stator comprising a first electromagnetic group and a second electromagnetic group between which the rotor is inserted, the rotor comprising a rotating shaft and a magnetic part installed around the outer wall of the rotating shaft, the motor further comprising an elastic element with a first contact part fixed on rear cover of the enclosure and a second contact part connected with the rotating shaft, wherein the elastic element is elastically deformable in at least two different directions. The motor is applicable to electric toothbrushes, shavers, loudspeakers, electric hammers, stirrers, refrigerators, sewing machines, packaging and bundling machines, electromagnetic pumps, etc. A rotating shaft of the electric toothbrush using the motor has the effects of high-frequency shimming and high-frequency knocking vibration, and the dental calculi on the dental surface are crushed via high-frequency knock, with higher cleaning effect.

Abstract: An actuator system comprising a shared link (121) arranged to pivot about a first axis (131) relative to a reference structure, a controlled element (125) arranged to pivot about a second axis (126) relative to the reference structure, a first member (146, 152) arranged to pivot about a third axis (134) relative to the shard link and a fourth axis (136) relative to the controlled member, a first actuator arranged to control a first variable distance (LI) between the third axis and fourth axis, a second member (147, 153) arranged to pivot about a fifth axis (133) relative to the shared link and a sixth axis (135) relative to the controlled element, a second actuator (141) arranged to control a second variable distance between the fifth axis and the sixth axis, the system configured such that a change in the first variable distance causes rotation of the controlled element about the second axis when the second variable distance is constant and vice versa.

Abstract: A linear actuator may include a movable element including a cylindrical permanent magnet; a stationary element including a coil bobbin that surrounds the permanent magnet at an outside in a radial direction; a spring member connected to the movable element and the coil bobbin, and supporting the movable element to be movable in an axial direction in relation to the coil bobbin; a coil wound around the coil bobbin, for configuring a magnetic drive mechanism together with the permanent magnet, the magnetic drive mechanism being structured to drive the movable element in the axial direction; and a gel damper member being sandwiched between the stationary element and the movable element in the axial direction.

Abstract: In some embodiments, an image sensor mechanically coupled to a base of a camera module. A coil assembly is mechanically coupled to the base of the camera module. The coil assembly includes terminals for connections to respective ones of coils through leads routed through thin areas leading to coil housings. The coils include optical image stabilization coils mounted perpendicular to the image sensor on each of a plurality of faces of the camera actuator module.

Abstract: A plunger lift system that uses a linear induction motor instead of gas or fluid pressure to lift the plunger. Electrical voltage is applied to electromagnets installed along the tubing of a wellbore that will induce magnets contained within a special plunger that is introduced inside the tubing to move it and allow it to lift liquids with a piston-like action. The electromotive force may be adjusted by varying the applied voltage as needed to lift the column of liquid from the wellbore or the current reversed to accelerate and optimize plunger descent.

Abstract: A vibration sensor having at least one magnet and at least one coil, a first leg having a first and second mounting positions, and a second leg having first and second mounting positions, wherein a coil unit having a coil is arranged at the first mounting position of the first leg, and wherein a permanent magnet holder with a magnet is arranged at the first mounting position of the second leg, and the coil unit surrounds the magnet unit so that the magnet unit can move relative to the coil unit and be surrounded by the coil unit, and wherein the first leg, in the second mounting position, is arranged with a spacing relative to the second mounting position of the second leg, so that the first leg at the first mounting position is arranged spring-like with respect to the second leg at the first mounting position.

Abstract: Disclosed herein is a three-phase inverter system for a motor, which supplies three-phase power to a motor. The three-phase inverter system includes first, second, and third output units, and first, second, and third capacitors configured to supply power to the respective first, second, and third output units. The first output unit, the first capacitor, the second output unit, the second capacitor, the third output unit, and the third capacitor are radially arranged to form a hexagonal shape.

Abstract: Magnetic drive device characterized in that it comprises a driving element moving in a guide element, and suitable to drive a driven element; the driven element is mobile along the guide element, in accordance with the movement of the driving element; the driving element acting on the driven element by use of magnetic means and without direct physical contact. The magnetic drive action of the driving element is induced by means of the use of permanent magnets or of electromagnets which act on the driven element.

Abstract: A MEMS sensor device includes an electrically conductive membrane and an electrically conductive closed loop structure. The closed loop structure is arranged in proximity to the membrane and is configured to reduce eddy currents in the membrane.

Abstract: A transporting apparatus comprises a track (2) and at least one movable element (3) movable along said track (2), said movable element (3) comprising a supporting body (14), said track (2) comprising a first guiding surface (11a) and a further first guiding surface (lib) facing towards said supporting body (14), a second guiding surface (12a) and a further second guiding surface (12b) facing away from said supporting body (14), and a third guiding surface (13a) arranged transversally to said first guiding surface (11a) and said second guiding surface (12a) and a further third guiding surface (13b) arranged transversally to said further first guiding surface (lib) and said further second guiding surface (12b), wherein said movable element (3) comprises a first couple of rollers (15) slidably coupled to said first guiding surface (11a), a further first couple of rollers (16) slidably coupled to said further first guiding surface (lib), a second couple of rollers (17) slidably coupled to said second guiding surf

Abstract: A linear vibration motor includes a base with an accommodation space, a vibration unit and two elastic parts fixed respectively on the opposite ends of the vibration unit. The elastic parts include a main elastic part and an auxiliary elastic part. The auxiliary elastic part includes a first auxiliary elastic part and a second auxiliary elastic part which are fixed respectively on the opposite sides of the vibration unit and the base which are parallel to the vibration direction of the vibration unit. Compared with the related technology, the liner vibration motor of the present disclosure has a good performance and a high reliability.

Abstract: A stage device is equipped with a surface plate and a wafer stage which is mounted on the surface plate and has an exhausting port formed on a surface facing the surface plate. In a state where the wafer stage lands on the surface plate, an air chamber is formed in between the surface plate and the wafer stage. Pressurized gas blows out from the exhausting port provided at a stage main section into the air chamber, and self-weight of the wafer stage is cancelled by an inner pressure of the air chamber. This allows to the wafer stage which has stopped on the surface plate to be moved manually.