Abstract: The method and apparatus in one embodiment may have: operating one of two resonators of a class II coriolis vibratory gyro in a closed loop mode and another of the two resonators in an open loop whole angle mode; sensing an angular rate by each of the two resonators; calibrating the scale factor of the closed loop resonator to yield the same integrated whole angle as measured by the open loop resonator; reversing operation of the two resonators such that the one of two resonators is operated in an open loop mode and the another of the two resonators in a closed loop whole angle mode; and alternately proceeding between open and closed loop operation of the two resonators, thereby self-calibrating scale factors respectively of the two resonators.

Abstract: To calibrate an accelerometer, a seismic cable that carries the accelerometer is rotated. Data measured by the accelerometer as the seismic cable is rotated is received, and at least one calibration parameter according to the received data is computed. The at least one calibration parameter is for use in calibrating the accelerometer.

Abstract: A hardband wear testing system with a first rotatable member connected to a tool joint to rotate the tool joint in a first direction. A second rotatable member connectable to the casing sample to rotate the casing sample in the first direction or in a second direction opposite to the first direction. One or more actuators may be utilized to raise and lower the second rotatable member and the casing sample with respect to the tool joint.

Abstract: The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and a dry side of the liquid cell, a cantilevered probe coupled to the liquid cell housing, and a piezoelectric drive element disposed on the cantilevered probe. The cantilevered probe is actuated when a drive voltage is applied to the piezoelectric drive element through at least one of the conductive feedthroughs. A method of imaging an object in a liquid medium and a method of sensing a target species with the liquid cell are also disclosed.

Abstract: A method for determining pore structure characteristics of a filtration cartridge includes the steps of placing a porometry test location isolating device in sealing contact with the filtration cartridge at a desired test location, increasing the porometer test gas pressure until the test gas flows through the cartridge at the test location, measuring the flow rate of the test gas through the test location as a function of differential pressure, reducing the test gas pressure to atmospheric pressure, wetting the test location with a wetting liquid, increasing the test gas pressure again until the test gas flows through the cartridge at the test location, measuring differential gas pressure and gas flow rates through the test location, and converting the measured gas flow rates and differential pressures into through pore throat diameters, largest through pore throat diameter, mean flow through pore throat diameter, pore distribution, and gas permeability of the cartridge.

Abstract: A method for determining pore structure characteristics of a filtration cartridge includes the steps of placing a porometry test location isolating device in sealing contact with the filtration cartridge at a desired test location, increasing the porometer test gas pressure until the test gas flows through the cartridge at the test location, measuring the flow rate of the test gas through the test location as a function of differential pressure, reducing the test gas pressure to atmospheric pressure, wetting the test location with a wetting liquid, increasing the test gas pressure again until the test gas flows through the cartridge at the test location, measuring differential gas pressure and gas flow rates through the test location, and converting the measured gas flow rates and differential pressures into through pore throat diameters, largest through pore throat diameter, mean flow through pore throat diameter, pore distribution, and gas permeability of the cartridge.

Abstract: A method for determining pore structure characteristics of a filtration cartridge includes the steps of placing a porometry test location isolating device in sealing contact with the filtration cartridge at a desired test location, increasing the porometer test gas pressure until the test gas flows through the cartridge at the test location, measuring the flow rate of the test gas through the test location as a function of differential pressure, reducing the test gas pressure to atmospheric pressure, wetting the test location with a wetting liquid, increasing the test gas pressure again until the test gas flows through the cartridge at the test location, measuring differential gas pressure and gas flow rates through the test location, and converting the measured gas flow rates and differential pressures into through pore throat diameters, largest through pore throat diameter, mean flow through pore throat diameter, pore distribution, and gas permeability of the cartridge.

Abstract: A probe assembly for a scanning probe microscope (SPM), a cartridge for a probe assembly for an SPM, and a method of attaching a probe tip to an SPM are described.

Abstract: An engine misfire diagnostic apparatus measures an amount of time required for a crankshaft to pass through a prescribed crank angle range corresponding to a combustion stroke to obtain time measurement values on a per cylinder basis. A first misfire parameter is obtained based on stored time measurement values from a designated cylinder, an opposing cylinder corresponding to one crankshaft rotation prior and the opposing cylinder corresponding to one crankshaft rotation later. A second misfire parameter is obtained based on stored time measurement values from the designated cylinder, a first reference cylinder whose ignition occurs one ignition prior to the designated cylinder's ignition and a second reference cylinder whose ignition occurs later than the designated cylinder's ignition, the differences weighted according to a prescribed ratio. A determination of whether the designated cylinder has misfired is based on the second misfire parameter and a derivative value of the first misfire parameter.

Abstract: An EGR fault in an engine is detected by comparing actual MAP values with inferred MAP values, the latter being based on MAF and engine speed. Multiple pairs of inferred and actual MAP, some having low EGR and other having high EGR rate. The two values are expected to deviate at high EGR rate and to be nearly equal at low EGR rate. If no such deviation at high EGR, then a fault is determined. According to the present disclosure, the computation of inferred MAP includes a compensation for flow into the intake through a carbon canister system. Without such compensation, the EGR routine is applied to situations without flow from the canister. Such a limitation caused a problem in HEV vehicles, in which engine operating time is less than typical engine installations. Additionally, the confounding effects of rapid VVT movement are excluded from the computations.

Abstract: In a pedal operation amount detecting apparatus, a brake pedal and a crevice fixed to an end portion of an operation rod are rotatably coupled by a coupling shaft, a bush is interposed between the brake pedal and the coupling shaft, and detectors are mounted on an outer peripheral surface of a bush body, which is elastically deformable, in the bush, and an ECU estimates an angle between the brake pedal and the operation rod based on a ratio between distortion loads detected by the detectors, and calculates an operation amount of the brake pedal, that is to say, pedal force and a pedal stroke, based on the angle, thereby enabling to improve mountability by simplifying a configuration and to detect the operation amount with a high degree of accuracy.

Abstract: Provided is a tire testing machine capable of measuring a force generated in a tire with high precision. The tire testing machine includes a spindle shaft (20) for holding a tire (T), a housing (22) for rotatably supporting the spindle shaft (20) through a rolling bearing (25), a running device (10) having a surface rotated by rotational driving and imparting a rotational force to a tire contacting the surface, and a measurement device (4) which is provided in the housing (22) and measures a force and moment generated in the spindle shaft (20) when the tire (T) is running. Furthermore, the tire testing machine includes a torque canceller (5) for preventing the spindle shaft (20) from such an impact that rotational friction torque (My1) generated by rotational friction, which is received by the spindle shaft (20) in the housing when the spindle shaft (20) rotates, is imparted onto the shaft (20).

Abstract: Methods and apparatuses for analyzing a downhole fluid are disclosed. An example method may involve the steps of admitting the downhole fluid in a test volume, controllably inducing a pressure change in the test volume based on at least one prescribed rate, measuring pressures in the test volume at a plurality of times, using the pressures measured at the plurality of times to determine a time at which an actual rate of the pressure change in the test volume deviates from the at least one prescribed rate, and detecting an occurrence of phase transition of the downhole fluid based on the determined time.

Abstract: Examples of techniques for analyzing well data which may be encountered during formation testing are disclosed. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. One or more confidence tokens may be identified during or after the execution of a test. One or more of these confidence tokens may be analyzed to determine whether such anomalous behavior, defects, errors or events have occurred during the test. These confidence tokens may then be used to determine a level of confidence in the results derived from the tests performed and/or their underlying data and interpretation.

Abstract: An apparatus for measuring and/or controlling the level of a liquid, specially fuel, contained in a reservoir. The apparatus comprises means supporting a pivot member inside the reservoir, the pivot member comprising a stationary body fixed relatively to the supporting means and a rotary body connected to a lever, the free end of which carries a float. The rotary body includes a permanent magnet and the stationary member houses a magnetic sensor located within the magnetic field of the permanent magnet. Angular movement of the lever produces rotation of the magnet and is detected by the magnetic sensor which emits signals to a micro processor which, in turn, transmits such signals to external processing means. The processing means correlate such signals, which are proportional to variations in the liquid level, to the volume of liquid contained in the reservoir.

Abstract: In a device for receiving a multi-part constructional unit of a double coupling in a balancing machine there is provided a receiving mandrel which can be driven in rotation about its longitudinal axis and has a bearing face for centering a first coupling part and a centering pin arranged at the free end thereof. The device also comprises a clamping sleeve which can be moved by spring force into a clamping position and has a clamping face coaxial with the longitudinal axis of the receiving mandrel and a centering ring which is arranged on the centering pin, is held releasably thereon, has a centering face for centering further coupling parts and can be coupled in a torque-proof manner with the receiving mandrel in at least one angle position.

Abstract: Provided is a vibration gyro sensor including: a vibration element including a piezoelectric element group which has a first side provided with a drive electrode and a detection electrode and a second side opposed to the first side and provided with a common electrode, which vibrates by a drive signal input between the drive electrode and the common electrode and generates an output signal containing a detection signal corresponding to Coriolis force from the detection electrode; a bias section applying a bias voltage to the detection electrode; an oscillation circuit outputting the signal for causing vibration of the vibration element to the drive electrode as the drive signal based on the output signal generated by the detection electrode; and a phase inversion circuit outputting an inversion signal obtained by inverting a phase of the drive signal output from the oscillation circuit to the common electrode.

Abstract: An angular rate sensor includes: a substrate; and a vibrator having a beam part supported in a state of floating from the substrate and a pair of supports formed on the substrate and provided at both ends of the beam part for supporting the beam part. The vibrator includes a piezoelectric film formed in the beam part, a detecting electrode for detecting an angular rate, the detecting electrode being formed on the piezoelectric film so as to extend toward a center portion of the beam part from one end thereof, and a driving electrode for vibrating the vibrator, the driving electrode being formed on the piezoelectric film so as to extend toward the center portion of the beam part from the other end thereof and to be spaced from the detecting electrode.

Abstract: A 3-dimensional MEMS accelerometer fabricated on a single planar substrate deploys three co-planar sensor elements. Each sensor element is a capacitive device deploying a static electrode plate and a parallel dynamic electrode plate supported by a torsion beam. The dynamic electrode plate also includes a proof mass portion that displaces the center of gravity to below the plane of the plate. Two of the sensor elements are identical and rotated by 90 degrees on the planar substrate. The third capacitive sensor has two pairs of adjacent capacitive plates, each one having a dynamic electrode plate is suspended by a torsion beam. The proof mass on each dynamic electrode plates however is offset laterally from the torsion axis in opposite directions from the other plates to cancel the their respective capacitance charges induced by in-plane acceleration. However, this arrangement also adds the capacitive change induced by acceleration orthogonal to the planar substrate.

Abstract: The invention relates to a micromachined accelerometer using a movable seismic mass suspended in relation to the substrate by elastic connections only allowing translation in its own plane along a sensitive axis (Oy). The mass acts on at least one elongate resonator by means of a force amplification structure associated with this resonator. The amplification structure comprises a rigid lever arm, a first end of which is connected to the seismic mass by a connection having, in the plane of the mass, a high stiffness in the direction of the sensitive axis (Oy) and a low stiffness in the perpendicular direction, and a second end is connected to an anchor point on the substrate. The second end of the lever arm is a rigid head piece surrounding the anchor point and connected to this anchor point by a rotational connection about a center of rotation.

Abstract: An accelerometer module for use with a touch sensor on a device, a method of detecting acceleration using a touch sensor, and a computer program product for receiving the touch sensor data and producing output representative of acceleration. The accelerometer module provides a device with a touch sensor, such as a mobile phone, with the ability to sense acceleration, orientation, or both. The accelerometer module may sense acceleration along a single axis or multiple axis. Sensing acceleration along three axis may be useful for producing a handheld game controller or for providing input to many other applications. The accelerometer module applies a force against a deformable member to change the contact area between the deformable member and the touch sensor, wherein the contact area is a function of the amount of applied acceleration.

Abstract: The present invention relates to a micromechanical sensor for analyzing liquid samples and an array of such sensors. The invention also concerns a method for sensing liquid samples and the use of longitudinal bulk acoustic waves for analyzing liquid phase samples micromechanically. The sensor comprises a body and a planar wave guide portion spaced from the body. At least one electro-mechanical transducer element are used for excitation of longitudinal bulk acoustic waves to the wave guide portion in response to electrical actuation and for converting acoustic waves into electrical signals. The wave guide portion is provided with a sample-receiving zone onto which the sample can be introduced. By means of the invention, the sensitivity of micromechanical liquid sensors can be improved.

Abstract: An obstacle detection apparatus for detecting an obstacle in its surroundings is disclosed. The system includes: an ultrasonic sensor for transmitting and receiving ultrasonic wave; an obstacle detection section for performing an obstacle detection operation to determine whether the obstacle actually exists, wherein the obstacle detection section determines that the obstacle actually exists when a first voltage level associated with the ultrasonic wave received in the obstacle detection operation exceeds a determination threshold; a noise monitoring section configured to perform a noise monitoring operation to determine a noise level, wherein, the noise monitoring section recognizes a second voltage level associated with the ultrasonic wave received in the noise monitoring operation as the noise level; and a determination threshold setting section configured to set the determination threshold based on the second voltage level.

Abstract: The invention relates to a method for monitoring the dynamic behavior, in particular of the oscillating behavior of a rotating shaft, the oscillation being detected by at least two sensors at defined different spatial position, the oscillating behavior in at least one preferred direction being determined from the oscillation. The invention also relates to a device for monitoring oscillating behavior in a rotary machine with rotable parts, having at least two sensors, a shaft and a computing unit, characterized in that the at least two sensors are positioned in a defined spatial position outside the shaft, detect measurement variables which characterize the oscillations and are connected to a computing unit for the transfer of data. The invention also relates to a gas turbine and a steam turbine that use a method and a device as per the invention.

Abstract: A pressure transducer comprising a housing and a piezoelectric resonator in the housing, wherein the resonator is made of a piezoelectric crystal having Curie temperature greater than 1000° C. or having no Curie temperature up to its melting point greater than 1000° C., and the piezoelectric crystal has a piezoelectric constant more than two times greater than that of quartz.

Abstract: A pressure transducer assembly including: a pressure sensor header; a transducer assembly member; and a joining arrangement disposed at an interface of the header and the transducer assembly member, for joining the header with the transducer assembly member, the joining arrangement including: a recessed female joining element formed in one of the header and the transducer assembly member; and a protruding male joining element formed on the other of the header and the transducer assembly member, the male joining element received in the female joining element.

Abstract: A device includes a structure, a strain sensor and a light curable adhesive. The structure has a structure surface. The light curable adhesive bonds the strain sensor to the structure surface.

Abstract: An apparatus can include a first detector to receive a first signal from a first switch configured to open and close based on position of a metering wheel associated with a flow line. The apparatus can further include a first counter to count within a first range based on a change in a state of the first signal. Using this information, the apparatus can determine usage and direction of, e.g., a fluid or liquid flowing along the flow line.

Abstract: A sensor assembly for a fluid flowmeter including a body having a hollow interior where the body is configured to have a moisture impermeable barrier that prevents moisture from entering the interior at extreme fluid pressures. The assembly includes at least one electrode that is mounted on the body and a coil assembly configured to be removably inserted in the hollow interior of the body, where the coil assembly includes at least one magnetic coil electrically isolated from the at least one electrode when the coil assembly is inserted into the hollow interior of the body.

Abstract: An embodiment of a piezoelectric assembly for an ultrasonic flow meter comprises a piezoelectric element including a first face and a second face. In addition, the piezoelectric assembly comprises a first electrode engaging the first face. Further, the piezoelectric assembly comprises a second electrode engaging the second face. Still further, the piezoelectric assembly comprises an electrically conductive shim connector attached to the first electrode. Moreover, the piezoelectric assembly comprises a first wire electrically coupled to the shim connector.

Abstract: An electromagnetic flowmeter includes a measuring tube, electrodes, an exciting coil for applying, to a fluid, a time-changing magnetic field asymmetrical with respect to a plane PLN, a signal conversion unit which extracts a ?A/?t component, irrelevant to a fluid flow velocity, from a resultant electromotive force of an electromotive force based on the ?A/?t component and an electromotive force based on a v×B component originating from the flow velocity of the fluid, a flow rate output unit which removes a variation factor for a span as a coefficient applied to a magnitude V of a flow velocity of the v×B component in the resultant electromotive force, based on the extracted ?A/?t component, and calculates a flow rate of the fluid from a result obtained by removing the variation factor, and signal lines inclined with respect to a direction of the magnetic field in parallel with the plane PLN.

Abstract: A bi-directional flowmeter comprises a first fluidic oscillator device arranged to measure the flow of fluid in a first direction and a second fluidic oscillator device arranged to measure the flow of fluid in a second direction opposite to the first direction and in which the two oscillators devices are connected together in series between an inlet port and an outlet port of the flowmeter between which the fluid to be measured can flow.

Abstract: An improved flow meter, which has diagnostic capabilities due to the reading of total pressure head loss, calculation of corresponding flow rate and comparison with flow rates calculated from other differential pressures.

Abstract: A traction force control method for a traction apparatus according to the present invention that impresses a desired traction force on an object to be hauled via a traction mechanism is provided. The method includes measuring, in a zero traction state in which an impressed traction force that is impressed on the object to be hauled is zero, the impressed traction force with a traction force sensor and outputting a zero traction value.

Abstract: A personal nanoparticle sampler is disclosed to include a pre-classifier, a nozzle, a connector and a final filter pack. The connector and the final filter pack respectively accommodate a particle-sizing filter and a final filter to collect nanoparticles smaller than a diameter. The pre-classifier removes large particles to avoid clogging of the connector. The nozzle raises the airflow velocity to reduce the cut-off diameter of the particle-sizing filter without increasing the total flowrate, allowing the personal nanoparticle sampler to be used with a personal sampling pump.

Abstract: A sliding device 1 includes a swash plate 3 rotated in association with a rotating shaft 2 and semispherical shoes 4 sliding on the swash plate 3. The semispherical shoes 4 are formed of a ferrous material and the swash plate 3 is manufactured using high-strength brass as a material. On a sliding surface 4A of the shoe 4, a large number of minute annular expandingly projecting parts 7? are formed by laser hardening and a lubricating oil passage 10? consisting of a reticular concave part is also formed. Thereby, a sliding device 1 having excellent seizure resistance as compared with conventional sliding devices can be provided.

Abstract: An electromechanical actuating assembly (100), operable in a plurality of fault-tolerant modes to accommodate at least the most probable fault situations. In the M1D1-only mode, actuator-moving power is transferred only through the first drivetrain (400A) and decoupling power transmitted through the second decoupling train (600B) decouples the second drivetrain (400B) from the actuator (200). In the M2D2-only mode, actuator-moving power is transferred only through the second drivetrain (400B) and decoupling power transmitted through the first decoupling train (600A) decouples the first drivetrain (400A) from the actuator (200).

Abstract: A transmission for a motor vehicle featured with an internal combustion engine has a helical reversing gear wheel, which is mounted on a dual-row cylinder roller bearing with left-hand cylinder rollers and with right-hand cylinder rollers, which are supported on the inside, in each case, on a circular centre rim in the reversing gear wheel. The left-hand cylinder rollers and the right-hand cylinder rollers are held in a bearing cage. The bearing cage is configured in such a way that the force flow for axial forces between the reversing gear wheel and its transmission shaft, omitting the bearing cage, is introduced through the centre rim and by way of end faces of the cylinder rollers directly adjacent thereto, through the opposing end faces of the cylinder rollers and through adjacent components into the input shaft.

Abstract: Provided are a gear in which oil film formation between the tooth surfaces of gears rotating at high speed can be effected to a sufficient degree, in which generation of pitting, abrasion, and scoring is prevented, and which helps to prevent an increase in temperature and wear to achieve an improvement in durability, and a gear drive unit. A multitude of minute concave recesses are provided at random on a tooth surface, and an average area of the recesses is set to a range of 160 to 740 ?m2. Accordingly, the tooth surface can obtain a high oil film forming capacity. Thus, even under a low-viscosity/thin-lubrication condition in which the thickness of the oil film is extremely small, it is possible to achieve a long service life.

Abstract: A gimbal assembly includes a gimbal mechanism, an electrical connector, and a flexible substrate. The gimbal mechanism is configured to rotate about a first rotational axis and a second rotational axis that is perpendicular to the first rotational axis. The electrical connector is coupled to, and mounted on, the gimbal mechanism. The flexible substrate is coupled to the electrical connector and is adapted to be coupled to an external circuit for electrically interconnecting the electrical connector and the external circuit.

Abstract: A multi-joint robot for loading/unloading a work into/from a cassette, which includes a hand part holding the work, an arm part rotatably holding the hand part, a link mechanism rotatably holding the base end side of the arm part and moving so that the moving route of the base end side of the arm part becomes linear in a direction roughly orthogonal to a direction for loading/unloading the work, and a driving device for moving the tip side of the arm part so as to linearly interpolate it in a direction for loading/unloading the work according to the movement of the link mechanism.

Abstract: An actuator is disclosed. The actuator includes: an output gear, a pinion, a drive shaft, a housing, and a spring. The output gear is adapted to receive a traction element. The pinion is in driving communication with the output gear. The drive shaft is interconnected with the pinion. The housing is adapted to receive the output gear and the drive shaft. The coil spring is circumjacent the drive shaft and located in a position intermediate the drive shaft and the housing, whereby rotation of the drive shaft causes the coil spring to frictionally disengage from the housing such that the output gear may rotate.

Abstract: Rotary support bodies which support both ends of a rod penetrating a manipulating knob body are formed by joining a first rotary support member which is arranged at one side of the manipulating knob body and supports one end of the rod and a second rotary support member which is arranged at another side of the manipulating knob body and supports another end of the rod, and one end of the rod is fixed to the second rotary support member, and another end of the rod is engaged with the first rotary support member. Accordingly, a manipulating knob can be mounted on a casing in a state the manipulating knob is mounted on the rotary support body.

Abstract: A steering wheel comprises a rim connected to spokes. A covering material is provided to enclose at least a portion of the rim and/or the spokes. The covering material includes an outer cover and a light element positioned under the outer cover. The light element is configured to emit light through at least a portion of the outer cover. The light element is positioned over a casing that is provided to give shape to the steering wheel so that a vehicle driver may easily grasp the steering wheel. The light element may provide continuous, pulsed, or non-continuous lighting.

Abstract: A rotary table mounting and drive device (1), including a rotary table (3) which is rotatably mounted on a frame (2) and for the mounting of which an axial/radial rolling bearing arrangement (4) and an active magnetic bearing arrangement (5) are provided, has an electric direct drive (19) which is preferably a torque motor having a rotor (20) rigidly connected to the rotary table (3) and a stator (21) rigidly connected to the frame (2).

Abstract: The invention relates to hand tools that can be used in a variety of projects. Specifically, the invention relates to wrenches having two heads that are useful for repairing many different types of objects. The projects include motorcycle repair, automotive repair, small engine repair, general home repair, and appliance repair.

Abstract: Non-reversing fasteners include a bolt having a groove defined along the thread, and a nut having a biased tooth disposed in an internal pocket. When the nut is threaded onto the bolt, the biased tooth does not engage the groove. When the nut is reversed off the bolt, the biased tooth stays in an extended position and engages the groove, preventing it from reversing. A tool positions on the nut and moves the biased tooth from the extended position to a retracted position, allowing the nut to reverse off the bolt. The tool can be another nut having a magnet for moving the tooth from the extended to the retracted position. A reverse arrangement can have a bolt with a biased tooth and a nut having a groove. A tool in the form of a magnetized rod can fit into an axial bore in the bolt to move the tooth.

Abstract: A reversible monkey wrench includes a handle, a head, a slidable jaw, an axial rod and a worm gear. The handle has a connecting end for the head to abut thereagainst. The head is formed with a fixed jaw, a sliding rail, a receiving slot and a connecting bore. The connecting bore communicates with the receiving slot. A movable pin and a spring are disposed between the connecting end and the head. A top of the movable pin selectively inserts through the connecting bore. The spring urges the movable pin so that the movable pin may abut against the connecting end. The worm gear is adapted to control the slidable jaw to move and is slidably disposed in the receiving slot with respect to the axial rod. The movable pin selectively abuts against the worm gear to prohibit the worm gear from sliding.

Abstract: A retractable screwdriver includes a handle, a positioning member, an operation ring, a shank, a sleeve and a drive socket. The positioning member includes a first opening and a second opening respectively defined through a wall thereof and communicating with the passage. The length of the first opening is shorter than that of the second opening. A first wall is formed at the first opening and a second wall is formed at the second opening. The first and second walls are located on different radial planes and have a distance defined therebetween in a radial direction. The opening ring is obliquely located in the passage and biased by the second spring to keep an inclination of the operation ring. The operation ring has its contact edge to contact the shank so as to achieve the purpose of adjustment of the shank.

Abstract: A torque wrench for implantable medical devices is disclosed. The torque wrench comprises a first and a second component. The first component has first and second ends with a bore extending between the first and second ends of the first component. The first component includes a plurality of anti-rotation members extending from an inner surface of the bore at the second end of the first component. A second component includes a middle portion having a first and second ends. A drive shaft extends from the first end and a plurality of fingers extends from an exterior surface of the second end. The second component is received in the bore of the first component such that the fingers are interdigitate with the anti-rotation members.