2757results about How to "Improve vibration" patented technology

Ultrasound device having a reaction chamber, which includes a magnetostrictive transducer and a horn transmitting ultrasound radiation substantially uniformly throughout the reaction chamber. The horn is hollow and is constituted by a cylinder having an empty inner chamber at its core defining a resonance chamber, which may be cylindrical and may comprise a plurality of sections of cylindrical shape or a central section of larger diameter and two terminal sections of smaller diameter.

The present invention provides a balloon catheter comprising: a hollow inner shaft disposed within a hollow outer shaft; a balloon attached at its proximal end to said outer shaft and at its distal end to said inner shaft; wherein the inner shaft is constructed such that following radial expansion of the balloon to a first expanded state, said inner shaft is capable of responding to further longitudinal expansion of the balloon to a second expanded state by increasing its length from a resting value, and of responding to subsequent partial deflation back to said first expanded state by reducing its length back to said resting value.

A set of golf club irons with improved vibration damping and weight distribution, each golf club comprising a shaft and a head comprising a body portion having a front portion and a back portion, wherein the body portion defines an upper aperture and a lower aperture extending through the body portion communicating with the front portion and the back portion.

A piezoelectric micro-blower includes an inner case to which a peripheral portion of a vibrating plate including a piezoelectric element is fixed such that a blower chamber is defined between the inner case and the vibrating plate and an outer case arranged to cover an outer periphery of the inner case with a gap therebetween. The inner case is elastically retained in the outer case by a plurality of connecting portions. A first opening is provided in a top plate portion of the inner case that faces a central portion of the vibrating plate, and a second opening is provided in a top plate portion of the outer case that faces the first opening. A central space is provided between the top plate portions, and fluid introduced from the outside is guided to the central space through the gap between the inner and outer cases. The vibrating plate is driven in a bending mode so that air is sucked into the central space and is discharged through the second opening. The connecting portions prevent leakage of vibration of the vibrating plate from the inner case to the outer case, thereby reducing energy loss.

In a vehicular power transmitting apparatus provided with an electrically-controlled differential portion in which controlling an operating state of an electric motor controls a differential state of a differential mechanism, a control device for starting up a drive force source in an appropriate mode depending on a vehicle condition can be provided. The control device includes drive-force source start control means 86 for switching start modes of an engine 8 depending on a vehicle condition to achieve an appropriate start mode for the engine 8 depending on the vehicle condition, so that for instance a contracted drive range by a second electric motor can be avoided.

The present invention provides a balloon catheter comprising:a hollow inner shaft disposed within a hollow outer shaft;a balloon attached at its proximal end to said outer shaft and at its distal end to said inner shaft;wherein the inner shaft is constructed such that following radial expansion of the balloon to a first expanded state, said inner shaft is capable of responding to further longitudinal expansion of the balloon to a second expanded state by increasing its length from a resting value, and of responding to subsequent partial deflation back to said first expanded state by reducing its length back to said resting value.

The present invention provides a balloon catheter comprising:a hollow inner shaft disposed within a hollow outer shaft;a balloon attached at its proximal end to said outer shaft and at its distal end to said inner shaft;wherein the inner shaft is constructed such that following radial expansion of the balloon to a first expanded state, said inner shaft is capable of responding to further longitudinal expansion of the balloon to a second expanded state by increasing its length from a resting value, and of responding to subsequent partial deflation back to said first expanded state by reducing its length back to said resting value.

A balancer assembly 10 which automatically provides balancer limits, which achieves a balancing state while substantially minimizing short term vibration increases and which provides for multi-plane balancer dithering.

A small and highly reliable acoustic wave device and a method for production of the same will be provided. The acoustic wave device has a piezoelectric substrate 1; a SAW element 2 on one main surface of the piezoelectric substrate 1; an outside connection-use conductor 3 formed on the one main surface of the piezoelectric substrate 1 and electrically connected to the SAW element 2; a columnar electrode 10 on the outside connection-use conductor 3; and a protective cover 6 defining inner walls of a vibration space 7 for vibration of the SAW element 2 and planarly surrounding a side surface of the columnar electrode 10.

A vertical cavity surface emitting laser device includes a first reflective mirror layer, a second reflective-mirror layer, and an active layer disposed therebetween, wherein at least one of the first reflective mirror layer and the second reflective mirror layer includes a periodic-refractive-index structure in which the refractive index periodically changes in the in-plane direction and a part of the periodic-refractive-index structure includes a plurality of parts that disorder the periodicity.

A Coriolis mass flowmeter incorporates a measuring tube for guiding a flowing medium, a first oscillator for the oscillatory stimulation of the measuring tube, as well as a first oscillation sensor and a second oscillation sensor for picking up Coriolis oscillations of the measuring tube. The first oscillator, the first oscillation sensor and the second oscillation sensor are mutually spaced apart in the longitudinal direction of the measuring tube and the first oscillator is activated by an oscillation-stimulating control device. A third oscillation sensor is provided and positioned opposite the first oscillator at the same longitudinal distance of the measuring tube. Additionally or alternatively, a second oscillator and a third oscillator may be provided, with the second oscillator positioned opposite the first oscillation sensor and the third oscillator positioned opposite the second oscillation sensor, in each case at the same longitudinal distance on the measuring tube. All mutually opposite oscillators and oscillation sensors are of the same size, resulting in a “balanced” measuring tube while opening up various possibilities for improving the evaluation and control of the flowmeter, which in turn provides greater reproducibility and measuring accuracy.

Disclosed is a linear vibrator, the linear vibrator including a stator having first and second coil blocks coupled to a bottom plate of a casing, a vibrator having a magnet disposed at a position corresponding to the first and second coil blocks, and an elastic member elastically supporting the magnet.

A telecommunications network includes a mobile phone with an audio-modulated vibrotactile module that responds to a telecommunications signal containing information about incoming speech from a called / calling party, for providing an audio-modulated vibrotactile module force containing information about the incoming speech from the called / calling party to vibrate a user's fingers, facial skin, wrist, cheek or other suitable location. The audio-modulated vibrotactile module has an audio-to-vibrotactile converter that responds to the telecommunications signal, for providing an audio-to-vibrotactile converter signal containing information about a vibration modulation of the incoming speech from the called / calling party. The audio-modulated vibrotactile module also has a vibrotactile actuator that responds to the audio-to-vibrotactile converter signal, for providing the audio-modulated vibrotactile module force in the form of a vibrotactile actuator force. The telecommunications system may also have the audio-to-vibrotactile converter. The vibrotactile actuator may be an electromechanical actuator arranged in the housing of the mobile phone for providing vibration to a user's fingers wrist or facial skin.

An electrically controlled turbocharger having a substantially vertically oriented shaft interconnecting a turbine and a compressor. The vertical orientation serves to eliminate the effects of gravity on the rotating components. Placing the turbine vertically above the motor and compressor and provides additional cooling through convection of heat produced by hot exhaust gas flowing through the turbine. A lubricating system utilizes scavenged air from the compressor to draw lubricating oil through internal passages of the motor housing to maintain a desirable oil sump level, ventilate the auxiliary induction motor, and provide pressure to the oil seals of the motor cavity.

An apparatus, system and method for preventing or treating biofilm associated with catheters. A piezo-ceramic element may be attached to a catheter, and a vibration processor may be connected to the piezo-ceramic element. The vibration processor may provide electric signals that generate acoustic vibrations in the piezo-ceramic element, causing vibrations in or around the catheter. These vibrations may be particularly administered to disperse microbe colonies, thereby preventing or inhibiting formation of biofilm that may lead to infections. Vibrations may be amplified significantly due to resonance conditions in the catheter balloon, which may be powerful enough to be used to disperse microbe colonies that have grouped around the catheter or are attempting to do so.

A hydrodynamic torque converter (1), comprising a turbine wheel (9) driven by an impeller (8) and connected to an output part, and comprising a housing (34), in which a torsional vibration damper (19) having several damper stages (17, 20) and a centrifugal force pendulum (11), and also a converter lockup clutch (18) connecting a housing and an output part (3), are accommodated. In order to avoid any striking of the pendulum masses of the centrifugal force pendulum in internal combustion engines having large oscillating angles driving the torque converter, a turbine damper is connected in the power flow upstream of the centrifugal force pendulum.

Disclosed herein is a manufacturing method, excellent in wire drawability, of a seamed flux-cored welding wire having both favorable feedability and low hydrogen content characteristic. The method for manufacturing a seamed flux-cored wire, comprises the steps of: drawing a tube-like formed wire including a flux filled therein using a lubricant; removing the lubricant from the drawn wire by a physical means; and coating a lubricant (coating an oil) for wire feeding on the wire surface. The respective steps are carried out in an in-line manner. In the wire drawing step, a wire drawing lubricant containing a sulfur-bearing high-pressure lubricant is used, and the overall wire drawing from the tube-like formed wire to a roughly product-diameter wire is carried out by means of a roller die.

Disclosed is a magnetorheological fluid speed bump. At least one rectangular channel is arranged in a direction perpendicular to the lane length direction on the entry side of a lane speed zone. A piston cylinder is disposed in each channel; a piston in the piston cylinder is provided with through holes; a spring is elastically compressed between the bottom wall of a cylinder block and the piston; the cylinder block is full of magnetorheological fluid below the piston; a solenoid coil is disposed around the magnetorheological fluid in a cavity of the channel; a piston rod at the top of the piston upwardly penetrates through the top of the cylinder block of the piston cylinder, and a speed bump is fixed at the top of the penetrating end; the speed bump covers an opening of the channel; the speed bump can horizontally move up and down in the channel. A speedometer is installed on the lane on the entry side of the speed bump and is in signal connection with an electric control unit. The rigidity of the speed bump is flexibly variable, rigid contact and stress between the speed bump and vehicles can be reduced within an allowable speed range, the vehicles and the speed bump are protected effectively, driving comfort is improved, and the speed of the vehicle exceeding the allowable speed range can be limited effectively.

A coupling between the handle (2) and the machine housing (1) of a hand power tool having the greatest possible vibration damping is produced by the fact that the handle (2) is coupled with the machine housing (1) via two or more parallel levers (4, 5) situated nearly perpendicular to the longitudinal axis (3) of the hand power tool, whereby the levers (4, 5) are hinge-mounted on the machine housing (1) on the one hand and on the handle (2) on the other hand.

An electrically controlled turbocharger having a substantially vertically oriented shaft interconnecting a turbine and a compressor. The vertical orientation serves to eliminate the effects of gravity on the rotating components. Placing the turbine vertically above the motor and compressor and provides additional cooling through convection of heat produced by hot exhaust gas flowing through the turbine. A lubricating system utilizes scavenged air from the compressor to draw lubricating oil through internal passages of the motor housing to maintain a desirable oil sump level, ventilate the auxiliary induction motor, and provide pressure to the oil seals of the motor cavity.

Fine-grained (average grain size 1 nm to 1,000 nm) metallic coatings optionally containing solid particulates dispersed therein are disclosed. The fine-grained metallic materials are significantly harder and stronger than conventional coatings of the same chemical composition due to Hall-Petch strengthening and have low linear coefficients of thermal expansion (CTEs). The invention provides means for matching the CTE of the fine-grained metallic coating to the one of the substrate by adjusting the composition of the alloy and / or by varying the chemistry and volume fraction of particulates embedded in the coating. The fine-grained metallic coatings are particularly suited for strong and lightweight articles, precision molds, sporting goods, automotive parts and components exposed to thermal cycling. The low CTEs and the ability to match the CTEs of the fine-grained metallic coatings with the CTEs of the substrate minimize dimensional changes during thermal cycling and prevent premature failure.

An apparatus and method for controlling vibration in a mobile terminal are provided. The method includes, upon detecting a key input by a user, determining whether a current feedback signal is detected when an external case with a first vibrator is connected to the mobile terminal, upon detecting the current feedback signal, determining that the external case is connected to the mobile terminal and applying a drive signal to the first vibrator, and controlling the first vibrator to be activated in response to the received drive signal to output a haptic feedback.

A collar-mounted electronic apparatus (1) for control of barking by a dog includes a housing (2) supported by a collar for attachment to the dog's neck, first and second stimulus probes (5) connected to a surface (9) of the housing, a vibration sensor (6) supported by the housing for detecting vibrations caused by barking by the dog and control circuitry in the housing having an input coupled to an output of the vibration sensor. The control circuitry includes output terminals producing aversive stimulus signals in response to barking by the dog. A counter included in the control circuitry is incremented in conjunction with each occurrence of an episode of aversive stimulus applied to the dog in response to barking by the dog.

A horizontal linear vibrator includes: a bracket providing an internal space; a vibration unit mounted in the internal space and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and a cover unit formed to cover an upper portion of the bracket, wherein the bracket includes a support plate part so as to support the vibration unit to make a horizontal, linear movement, and the cover unit is formed to overlap with the support plate part.

A phaser which includes a housing and a rotor disposed to rotate relative to each other is provided. The housing has at least one cavity disposed to be divided by a vane rigidly attached to the rotor. The vane divides the cavity into a first chamber and a second chamber. The phaser further includes passages connecting the first and the second chamber, thereby facilitating the oscillation of the vane within the cavity. The phaser includes: a) a valve disposed to form at least two openings for fluid flowing between the first chamber and the second chamber and being disposed to keep at least one opening closed; and b) at least one by-pass disposed to stop or slow down the rotation between the housing and the rotor, thereby allowing a locking mechanism to lock the housing and the rotor together independent of fluid flow.

An apparatus, system and method for re-canalization or opening a passage through an occlusion in a blood vessel is disclosed. The apparatus and method, which are appropriate for both cardiovascular as well as peripheral vessels, use hydraulic pressure to drive a vibratable member, and the system includes a control unit to permit the frequency or amplitude of oscillation of the vibratable member to be adjusted to suit the morphology or hardness of the target occlusion. Also disclosed is a method for adjusting the force of vibration.

A vibration reducing golf glove, which includes a front panel for covering the inner portion of a wearer's hand and fingers, a thumb section for covering the wearer's thumb which is coupled to the front panel, and a back panel for covering the outer portion of a wearer's hand and fingers. Vibration reducing thick leather is coupled independently to the front panel at the palm, thumb and finger areas for reducing the degree of vibration. As a result, the vibration reducing golf glove provides a reduction in the vibration and shock transmitted to the wearer's and at the time a shock or vibration is applied to the outer surface of the glove.

An apparatus and method for controlling vibration in a mobile terminal are provided. The method includes, upon detecting a key input by a user, determining whether a current feedback signal is detected when an external case with a first vibrator is connected to the mobile terminal, upon detecting the current feedback signal, determining that the external case is connected to the mobile terminal and applying a drive signal to the first vibrator, and controlling the first vibrator to be activated in response to the received drive signal to output a haptic feedback.