37022results about How to "Reduce vibration" patented technology

Disclosed herein are heart pumps that include a catheter assembly and that can be applied percutaneously. Some embodiments include a locking device that prevents components of the catheter assembly from being separated when in use. The catheter assembly can include an expandable tip. In some embodiments, the catheter assembly includes a housing having a wall structure, a portion of which can have a bulbuous shape or can be deformable. In other embodiments, the housing can be configured to reduce fluttering or deflection of the housing and/or to maintain a gap between the housing and an impeller blade disposed therein.

A cavity back golf club head having a bridge member and a damping element is disclosed. The bridge member extends across a first rear cavity connecting a heel and a toe of the golf club head to control the trajectory of a golf ball. For the longer iron clubs, a damping element extends from the sole portion of the cavity back golf club head to the bridge member to define a second cavity to further influence the trajectory of the golf ball. For the shorter iron clubs, the damping element extends from the top portion of the cavity back golf club head to the bridge member. The damping element may reduce the vibration and sound of the golf club head upon impact with a golf ball.

Apparatus suitable for atomizing and vaporizing at least a first liquid by colliding at least one gas with the first liquid. The apparatus includes a gas inlet through which the gas enters the apparatus and a first liquid inlet through which the first liquid enters the apparatus. A discharge end of the apparatus includes at least one first liquid discharge outlet through which at least one stream of the first liquid is discharged from the apparatus. The discharge end also includes at least one gas discharge outlet through which at least one stream of gas is discharged from the apparatus to collide with and thereby atomize the discharged stream of the first liquid. A first liquid passageway interconnects the first liquid inlet with the first liquid discharge outlet. A gas passageway interconnects the gas inlet with the at least one gas discharge outlet. In one embodiment, the gas passageway comprises at least one gas chamber in thermal contact with an initial portion of the first liquid passageway such that a heated quantity of the gas in the chamber preheats the first liquid in the initial portion of the first liquid passageway. In alternative embodiments, the gas passageway includes a pressure dampening chamber allowing gas to be continuously discharged without pulsating.

A lancet comprises a slider having a puncture needle holding mechanism at its one end; a cam ring which has a continuous cam groove, is rotatable about a support shaft, and has a cam ring claw and an anti-return claw for restricting the rotation; a ring spring for applying a force to rotate the cam ring; a rotatable stopper arm for holding and releasing the rotation of the cam ring; and a rotatable ratchet for restricting the direction of rotation of the cam ring. A puncture needle unit comprises a puncture needle body which is integrally molded with a protrusion to be fitted to the lancet, a rotation stop rib, and a puncture needle; and a puncture needle cap which is lightly pressed into the puncture needle body.

A deployment assembly (10) for an introducer used for introducing into a patient a stent or other device, the deployment assembly including a housing 30 carrying a sprung loaded (90) actuator (44, 50). The actuator includes a toothed wheel (50) carrying a spool (48) around which a retraction strap (44) can be wound. The strap (44) is coupled to a body member (26) of the introducer and through this to the outer sheath (14) thereof. A trigger (16) is provided for operating the actuator (44, 50). When the trigger (16) is pressed, the actuator winds, under the force produced by the spring (90), the strap (44) to thereby retract the outer sheath (14) so as to expose and then deploy the device carried on the introducer. The mechanism is such that a surgeon need not expend his own energy to retract the outer sheath (14) since this force is provided by the spring (90). Furthermore, the spring (90) acts in a plane other than that of the direction of retraction of the sheath (14), which minimises the risk of inadvertent movement of the introducer as the sheath (14) is being retracted.

An article comprises a stretchable absorbent composite (30) that includes a quantity of superabsorbent particles (32) which are operatively contained within a matrix of elastomeric polymer fibers (34). In particular aspects, the composite article can include at least about 60 wt % of the superabsorbent particles and not more than about 40 wt % of the elastomeric polymer fibers, based on a total weight of the composite. In other aspects, the composite article can provide a high stretchability. Additional aspects can provide a low shake-out. Particular configurations can, for example, provide a stretchability value of at least about 30%. Additional aspects can include a configuration that provides a shake-out value of not more than about 2%. In other aspects, the invention can provide a shake-out value of not more than about 1.2%. In further aspects, the absorbent composite can include superabsorbent particles having a coating of treatment-material that is thermally processible. Additional aspects can include a treatment-material which is water soluble.

A robotic surgical system has a robot arm holding an instrument for performing a surgical procedure, and a control system for controlling movement of the arm and its instrument according to user manipulation of a master manipulator. The control system includes a filter in its forward path to attenuate master input commands that may cause instrument tip vibrations, and an inverse filter in a feedback path to the master manipulator configured so as to compensate for delay introduced by the forward path filter. To enhance control, master command and slave joint observers are also inserted in the control system to estimate slave joint position, velocity and acceleration commands using received slave joint position commands and torque feedbacks, and estimate actual slave joint positions, velocities and accelerations using sensed slave joint positions and commanded slave joint motor torques.

An entertainment device for vehicles adaptable to include various telecommunication and Internet applications, a sunviser monitoring screen for viewing, with an electronic screen protector for protecting the screen. The device, which is referred to as megatel, incorporates receivers and transmitters to enable cell phone and Internet transmission via the radio wave of an entertainment device radiated towards the antenna to the megatel body and output to the CPU. The signal to the CPU is controlled by the controller so that transmissions for the radio, the cell phone, and the Internet is separated and output to the monitoring screen and the speakers of the entertainment device so as to allow hands free communication while driving.

A platform for interchangeably mounting a payload to a base support is provided. In one aspect, the platform comprises: a support assembly configured to be releasably coupled to a payload via a first coupling and configured to control a spatial disposition of the payload; and a mounting assembly configured to be releasably coupled via a second coupling to a plurality of types of base supports selected from at least two of the following: an aerial vehicle, a handheld support, or a base adapter mounted onto a movable object.

Many individuals generate excessively loud snoring during their sleep, often to the point where others cannot tolerate sleeping in the same room with them. Most cases of snoring are caused by excessive bulk and flaccidity of soft tissues of the palate and uvula that vibrate as air flows past them. These palate and uvula contain muscles whose contractions can stiffen and displace the soft tissues so that they do not vibrate. The invention provides electrical stimulation that causes the oropharyngeal muscles to contract during sleep using one or more microstimulators injected into or near these muscles or the nerves which innervate them. The invention also provides methods of determining the anatomical structures implicated in snoring and testing such locations for effective placement and stimulation of muscle contraction to decrease the frequency or magnitude of snoring.

A golf club head is disclosed. The golf club head includes a first body member and a second body member. The first body member includes a strike face and a top portion. The second body member is coupled to the first body member and extends away from the first body member in a direction opposite the strike face. At least a top portion of the second body member is camouflaged. A preferred method of camouflage is color differentiation, wherein the second body member is darker than the first body member. Specific color values and club head geometries are also disclosed and claimed. The club head may include a body member and a weight member such as a bar that extends rearward from the body member. A cover may be included to camouflage the weight member. A separate core member and high visibility sight lines may also be provided. The club head may include a color alignment system wherein a top portion of the second body member comprises a transparent colored panel, and a bottom portion of the second body member comprises another transparent colored panel. The viewing of a third combination color to the golfer at address indicates proper alignment of the club head.

A system for cooling a CPU of a computer within a computer case, the system being characterized by having low noise emission levels, the system comprising: a CPU-cooling unit including a thermoelectric component (TEC) couplable to mains for power supply; a cold side heat sink coupled to the TEC and in thermally conductive contact with the CPU; a hot side heat sink coupled to the TEC; a CPU fan attached to the hot side heat sink for pulling heated air from the hot side heat sink; and an electronic controller, a CPU temperature sensor coupled to the cold plate and to the electronic controller for sensing the temperature of the CPU and providing an indication thereof to the electronic controller; wherein the electronic controller is controllingly coupled to the CPU fan for varying fan speed in accordance with the sensed CPU temperature and with software algorithms.

A device and a method for mounting a turbine engine, e.g., a gas turbine system, are described, in which a rotor unit is mounted to rotate inside a stationary external housing, having at least two supports for taking up the weight of the turbine engine, these supports being arranged at a spacing from one another in an axial longitudinal direction in relation to the external housing and at one side being articulated directly or indirectly on the external housing and at the other being supported directly or indirectly on a base frame. At least one support provides at least one support face which is supported exclusively in partial regions on at least two support plate elements. The at least one support face of the support is in operational engagement with the base frame by way of the support plate elements.

The invention is applicable to the technical field of household electrical appliances and provides a vibration compensation method for a single-rotor compressor and a controller. The method comprises the following steps: acquiring a rotating speed set value omega* and a rotating speed estimated value omega e corresponding to a speed command value; multiplying a speed error delta omega by cos theta, carrying out low pass filtering so as to obtain the cosine component Qc of a speed fluctuation fundamental wave, multiplying delta omega by sin theta and carrying out low pass filtering so as to obtain the sine component Qs of the speed fluctuation fundamental wave; multiplying Qc by cos (theta+delta theta), multiplying Qs by sin (theta+delta theta) and adding the result of multiplication of Qc by cos (theta+delta theta) and the result of multiplication of Qs by sin (theta+delta theta) together so as to obtain an intermediate rotating speed omega rip; subjecting omega rip to high pass filtering so as to obtain a q-shaft current compensation value; and inputting the q-shaft current compensation value into the single-rotor compressor to realize vibration compensation. With the technical scheme provided by the invention, the advantages of reduction in vibration of the single-rotor compressor and easy realization are obtained.

A permanent magnet rotating electric machine comprises a stator having stator windings wound round a stator iron core and a permanent magnet rotor having a plurality of inserted permanent magnets in which the polarity is alternately arranged in the peripheral direction in the rotor iron core. The rotor iron core of the permanent magnets is composed of magnetic pole pieces, auxiliary magnetic poles, and a stator yoke, and furthermore has concavities formed on the air gap face of the magnetic pole pieces of the rotor iron core of the permanent magnets, gently tilting from the central part of the magnetic poles to the end thereof. In a permanent magnet rotating electric machine, effects of iron loss are reduced, and an electric car using highly efficient permanent magnet rotating electric machine are realized.

A spherical display and control device, that is preferably collapsible between a spherical configuration and a collapsed generally cylindrical ellipsoid configuration, comprising a flexible transparent spherical surface sprung attached to a central hinged modular cube assembly that contains digital displays on outward faces, and circuitry, battery units and electronic modules on inward surfaces, where said sphere surface contains surface position sensing layers and said central cube contains gyroscopic and inertial sensing devices to provide spherical rotation, and physical displacement data for three dimensional control applications, where said displays preferably have curved polarizer lenses such that the overall device appears as a spherical display or are flat to form an overall Cuboid display or are combined with a flexible spherical display surfaces. The overall device being mechanically biased such that it is Bi-stable between the spherical and collapsed configuration via the action of pulling open and rotating the central cube halves.

The invention discloses a fracturing conveying ground manifold system. The fracturing conveying ground manifold system comprises a fracturing tree, a high-low pressure manifold device, a high-pressureflange conveying pipeline, a ground fracturing control manifold device, an offset flange mechanism and a corner pipeline, wherein the high-low pressure manifold device is linearly connected with theground fracturing control manifold device through the high-pressure flange conveying pipeline; the ground fracturing control manifold device is connected with the fracturing tree through the offset flange mechanism and the corner pipeline; and the offset flange mechanism and the corner pipeline can realize adjustment of different heights and directions between the ground fracturing control manifold device and the fracturing tree. The fracturing conveying ground manifold system has the advantages that the whole manifold system is large in displacement, simple in structure, simple in layout, fewin pipelines, few in joints, linear in conveying, relatively low in kinetic energy loss and capable of being separated from the ground, effectively prolonging the service life of the manifold, realizing multi-wellhead zipper type operation and improving the operation efficiency of a fracturing well factory.