Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate a pump to obtain a formation fluid sample from a formation adjacent to a wellbore disposed within a reservoir, to detect a phase behavior associated with the fluid sample, and to adjust the volumetric pumping rate of the pump while repeating the operating and the detecting to maintain the pumping rate at a maintained rate, above which the phase behavior changes from a substantially single phase fluid flow to a substantially multi-phase flow. Additional apparatus, systems, and methods are disclosed.

Abstract: A method and an apparatus for determining or monitoring a predetermined fill level, a phase boundary or a density of a medium in a container with an oscillatable unit. The oscillatable unit is placed at the height of the predetermined fill level and is excited to oscillate successively with discrete exciter frequencies following one another in a frequency scanning operation (sweep) within a predeterminable frequency band in the working range of the oscillatable unit. The corresponding oscillations of the oscillatable unit are received in the form of received signals; wherein that exciter frequency is ascertained in the frequency scanning operation, at which the oscillatable unit oscillates with an oscillation frequency, which has a predetermined phase shift between the transmission signal and the received signal; and wherein the transmitting/receiving unit excites the oscillatable unit to oscillate with the ascertained oscillation frequency.

Abstract: A method for efficiently operating a vehicle wheel balancing system having a wheel mounting structure upon which a vehicle wheel assembly is mounted for rotation during a measurement or service procedure, and a load roller assembly disposed in operative proximity to the wheel mounting structure for engaging a surface of the vehicle wheel assembly and applying a controlled load there to during rotation. After mounting a vehicle wheel assembly to the mounting structure, the wheel assembly is rotationally driven and a measurement of imbalance is initially acquired and the results displayed to an operator. Subsequently, the load roller assembly is engaged with the still rotating wheel, while measurements of radial forces and/or runout of the wheel are acquired, before the wheel rotation is stopped.

Abstract: A yaw rate sensor includes a drive device, at least one mass element which is connected to the drive device, and at least one detection electrode for detecting a motion of the mass element. The mass element has a base layer and at least one web which is situated on the base layer. Also, a method for manufacturing a mass element.

Abstract: A micromechanical rotation rate sensor, in particular for use in motor vehicles, includes a substrate, at least one seismic mass, which is arranged in a sprung manner on the substrate, drive means for production of a periodic movement of the seismic mass, force detection means for detection of a Coriolis force, which acts on the seismic mass as a result of rotation about a rotation axis which is at right angles to the excitation direction, and measurement means, wherein the measurement means are designed for measurement of structural deviations of the rotation rate sensor.

Abstract: A micromachined gyroscope is disclosed comprising a substrate, three masses m1, m2, and m3, configured to oscillate along a first direction x or y, whereby the first mass m1 is mechanically coupled to the substrate, the second mass m2 is mechanically coupled to the first mass m1 and to substrate, and the third mass m3 is mechanically coupled to the second mass m2, whereby the weight and the spring constants k1, k2, k3 of the respective masses m1, m2, and m3 and mechanical couplings k12, k23 are selected, such that, during operation mass m2 oscillates at a frequency substantially above the resonance frequencies of mass m1 and mass m3. The resonance frequency of mass m2 may be at least 2 times, or even 2.5 times, higher than the resonance frequency of mass m1 or m3.

Abstract: An accelerometer device having a proof mass, a support base, a hinge that flexibly connects the proof mass to the support base, a double-ended fork (DETF) having two tines. The tines are made of only piezoelectric material. A plurality of electrode surfaces surround at least portions of the tines for inducing electric fields at the first tine is opposite a direction of the induced electric field at the second tine at similar locations along a longitudinal axis of the tines. This causes the tines to resonate in-plane and out of phase.

Abstract: An ultrasonic gas leak detector is configured to discriminate the ultrasound generated by a pressurized gas leak into the atmosphere from false alarm ultrasound. An exemplary embodiment includes a sensor for detecting ultrasonic energy and providing sensor signals, and an electronic controller responsive to the sensor signals. In one exemplary embodiment, the electronic controller is configured to provide a threshold comparator function to compare a sensor signal value representative of sensed ultrasonic energy to a gas detection threshold value, and an Artificial Neural Network (ANN) function for processing signals derived from the digital sensor signals and applying ANN coefficients configured to discriminate false alarm sources from gas leaks. An output function generates detector outputs in dependence on the threshold comparator output and the ANN output.

Abstract: The invention relates to a test probe 10 for the non-destructive testing of a workpiece by means of ultrasonic sound. The test probe has an ultrasonic transducer 20 for the generation of an ultrasonic field, which is coupled acoustically to a delay line body 12, which is provided to be attached for a coupling of the ultrasonic field into the workpiece on a surface of the workpiece. Furthermore, the invention relates to a family of test probes as well as to a testing device for the non-destructive testing of a workpiece by means of ultrasonic sound, with a test probe 10, whose ultrasonic transducer 20 has a majority of independently controllable individual oscillators. Furthermore, a control unit 50 is provided, which is equipped to control the individual oscillators of the ultrasonic transducer 20 with phase accuracy in such a way, that a sound field rotationally symmetrical to the central beam is generated.

Abstract: A pressure monitoring system (200) is provided. The pressure monitoring system (200) includes a housing (201) and a fluid port (202) formed in the housing (201). The pressure monitoring system (200) also includes a first pressure switch (204) positioned within at least a portion of the housing (201). The first pressure switch (204) is in fluid communication with the fluid port (202). The pressure monitoring system (200) also includes a second pressure switch (205) positioned within at least a portion of the housing (201). The second pressure switch (205) is also in fluid communication with the fluid port (202).

Abstract: A system measures the load on a bridge when being used by a vehicle. The system has at least one measuring module with a plurality of measuring channel units which have associated separate sensors, preferably DMS sensors, which are intended to be fitted to the bridge. The sensors transmit measurement signals, preferably by wire, to the measuring channel units which are associated with each of the sensors and derive digital measurement data from the measurement signals. The measuring module also has an associated transmission interface in order to transmit the digital measurement data to a remote evaluation unit.

Abstract: High cycle fatigue testing is required with regard to a large number of components in order to evaluate their performance and capabilities. Typically such components are mounted such that an excitation mechanism such as through use of air jets can be utilized in order to stimulate vibration. In order to isolate a desired vibration mode generally, an isolation device is utilized. The isolation device presents an edge to a node within the component in order to inhibit vibration modes other than that of interest. Unfortunately, prior isolation elements tend to wear resulting in spurious results. By providing an isolation element within an isolation device, a fatigue test arrangement can be achieved in which both axial movement in the direction of a spring upon which the element is presented as well as lateral movement can be achieved.

Abstract: A technique for testing the compatibility of an encapsulation material and a wire bond included at an unencapsulated assembly. The technique includes immersing the assembly in an encapsulating compound extract. The assembly includes a semiconductor die and a bonding wire affixed to a metalized pad of the semiconductor die by the wire bond. After the immersing, a mechanical strength of the wire bond is determined.

Abstract: The invention relates to a method and a device for monitoring and/or optimizing flow processes, in particular injection molding processes. Vibrations caused by a flow of a material are detected and analyzed, wherein a vibration spectrum is detected at different times or in a (virtually) continuous manner and subjected to a multidimensional analysis.

Abstract: A vortex flow meter (1) with a measurement tube (2) through which a medium can flow, a baffle body (3) for generating vortices in the medium and a deflection body (4) which can be deflected by the pressure fluctuations which accompany the vortices in the medium. The vortex flow meter seeks to avoid the disadvantages of the implementations of the measurement principle of the prior art there being an electronic unit (6) which exposes the deflection body (4) to electromagnetic radiation and receives electromagnetic radiation from the deflection body (4).

Abstract: A measurement arrangement comprises a clock generator (11) which can be coupled to an emitting ultrasonic transducer (13) and a mixing arrangement (12) for providing a first mixer output signal (SO1). The mixing arrangement (12) has a first input (18) which can be coupled to a receiving ultrasonic transducer (14) and a second input (19) which is coupled to the clock generator (11).

Abstract: A flowmeter has a one-piece conduit with an outer surface and an inner surface that define a wall thickness therebetween, and first and second transducers, where each transducer is disposed external of or integral with the one-piece conduit, in signal communication with an interior volume of the one-piece conduit, and relative to each other such that each transducer can send and receive an acoustic signal to the other transducer. The one-piece conduit includes a plurality of acoustic noise attenuating features integrally formed with at least one of the outer surface and the inner surface and disposed between the first and second transducers, each of the features being configured and oriented to disturb a propagation direction of a parasitic acoustic wave that will propagate in the wall of the one-piece conduit in response to activation of at least one of the transducers.

Abstract: For adding a retro-fit load-measuring system to a walkie-type pallet truck etc, the low-profile load cell is formed with a chunky inner-boss and outer-ring. A thin annular disc, to which strain-gauges are cemented, extends between the two. The load-cell is installed in a fork of the truck, the outer-ring engaging a hole in the fork. The fork-cover engages the inner-boss of the load-cell, and is attached thereto with some free play.

Abstract: A device for measuring the torque, the direction of rotation, and the speed of rotation of a shaft of a transmission, in particular an output shaft of an azimuth transmission, includes bands configured to be mounted in a fixed position on an outer circumference of the shaft. The bands are configured to be detected by measuring sensors and allow torsion of the shaft to be measured. Each of the measuring sensors has a Hall effect sensor, and the bands are respectively arranged at two different positions on the outer circumference of the shaft. Each of the bands includes polygonal apertures and/or depressions having webs located between the apertures and/or depressions. The webs are configured to be detected by the measuring sensors. A method includes operating the device to measure the torque, the direction of rotation, and the speed of rotation of the shaft.

Abstract: The “Magneto Cyclist Power Sensor” is a device that computes “cyclist performance” values of pedal power, pedal force, cycle speed, and used gear position of a bicycle using the a aggregated signals from several vibration sensors that are a part of an assembly attached to the bicycle front derailleur. This device, working in conjunction with data from the internet and the cyclist Bluetooth or USB connected phone, is calibrated using known geographic topography of the riders location, prior information about the particulars of the bicycle (make, model and size) and past riding logs recorded by the device. The “cyclist performance values” can be used for providing the cyclist with a display of the computed values on their phone. The device attached to the front derailleur is composed of magnets, inductors, data acquisition and processing unit. Being attached to the derailleur, the device magnets and inductors move with the chain as the chain moves from gear to gear (also called sprocket).

Abstract: Disclosed are a stator assembly and a torque assembly device. The stator assembly includes a stator holder, a first stator which includes a first body making contact with an upper end of the stator holder and a plurality of first teeth extending from the first body so as to be disposed inside the stator holder, a second stator which includes a second body making contact with a lower end of the stator holder and a plurality of second teeth extending from the second body so to be alternately aligned with the first teeth inside the stator holder, and a fusion-welded material that is fusion-welded to the stator holder and the first and second bodies.

Abstract: A test system configured to impart a body disturbance to a test specimen and measure motion or displacement of the test specimen in response to the input body disturbance. The system includes one or more actuator devices configured to replicate motion or displacement of the body imparted through the original input body disturbance utilizing the measured motion or displacement. As disclosed, the system includes algorithms or instructions to generate control parameters utilizing the measured motion or displacement to control operation of the one or more actuator devices. The force applied through the one or more actuator devices to replicate the measured motion or displacement is used to determine the force or load applied to the body via the input disturbance.

Abstract: An individual tension meter (1) for measuring tension in a racquet string (9), includes a graspable body (10) and a stress member (2) for stressing the string (9) that are movable relative to each other by pivoting, elastically deformable return elements (3) configured to urge the graspable body (10) and the stress member (2) relative to each other back into a neutral angular position, measurement elements for measuring a magnitude representative of the relative pivoting between the graspable body (10) and the stress member (2), and computation elements for computing the tension of the string as a function of the measured magnitude. The graspable body (10) and the stress member (2) have a first possibility of pivoting relative to each other in a first direction and a second possibility of pivoting relative to each other in a second direction opposite from the first direction.

Abstract: A system for preparing samples for chemical analysis comprises at least one sample container, and a container receptacle apparatus for receiving the sample container. The sample container comprises an elongate tubular body having a crucible portion proximal to a closed end for receiving a sample therein, and an expansion portion proximal to an open end. The container receptacle apparatus comprising a housing having a heating compartment, a cooling compartment spaced apart from the heating compartment, and an insulating region located between the heating compartment and the cooling compartment. The heating compartment is shaped to receive the crucible portion of the sample container, and the cooling compartment is shaped to receive the expansion portion of the sample container. The apparatus also includes a heating mechanism for heating the sample within the crucible portion of the sample container, and a cooling mechanism for cooling the expansion portion of the sample container.

Abstract: A sampling device is disclosed. The sampling device includes a labyrinth structure and a sampling tube. The labyrinth structure includes a first baffle plate, a second baffle and a third baffle plate. The second baffle plate in combination with the first baffle plate defines an inlet channel and is configured to receive a portion of oil aerosol containing liquid oil particles. A curved bend is included downstream of the inlet channel and is configured to separate the liquid oil particles from the portion of oil aerosol. The third baffle plate is relatively inclined with respect to the first baffle plate. The third baffle plate in combination with the first baffle plate is configured to drain the separated liquid oil particles. The sampling tube provides the portion of oil aerosol separated of liquid oil particles to a detection device.

Abstract: A soil sampling apparatus comprising a motorized vehicle may be used to remove soil samples at intervals over a field of interest. The apparatus comprises a sampling assembly that rotates and extends downwardly into the soil to collect a sample. The probe assembly is raised to dump the sample into a collection assembly, which transfers the sample to a bagging assembly, where the sample may be bagged for later analysis.

Abstract: Sugar cane yield mapping improves the efficiency of sugar cane farming with benefits to both sugar producers and consumers.

Abstract: The present invention proposes an accessory gearbox for an engine with a drive shaft operatively connectable to a main shaft of the engine, with an extension shaft being provided which can be put into a detachable operative connection to the drive shaft substantially coaxially to said drive shaft of the accessory gearbox At least one auxiliary unit can be detachably arranged on the extension shaft.

Abstract: Disclosed is a ball screw module including a screw shaft, a nut member, a ball connector, and a circulating device mounted on the nut member. A helical rolling track is formed between the screw shaft and the nut member. The circulating device is in communication with the helical rolling track and has a circulating route. The circulating route includes an intermediate route, two connecting routes connecting the intermediate route, and two guiding sidewalls formed at sides of the circulating route. The guiding sidewalls guide the ball connector to twist in a clockwise direction while the ball connector entering and leaving the intermediate route and guide the ball connector to twist in a counterclockwise direction while the ball connector passing the intermediate route.

Abstract: Disclosed herein is an automotive transmission which includes shift lever which moves in a first direction and a second direction to select a shift position and a shift mode selection unit which is installed at one side of the shift lever to select a shift mode. Additionally, the disclosed automotive transmission also includes a shift blocking unit which selectively blocks movement of the shift lever in the first direction and the second direction such that a shift position of the selected shift mode is selected.

Abstract: The vacuum seal unit of a workpiece transfer apparatus includes a plurality of seal rings and a cooling flow passage formed so as to circulate through inside a rotating shaft and a workpiece transfer mechanism. The seal rings adjacent to each other with a spacing therebetween, out of the plurality of seal rings, and the rotating shaft define a first space and a second space independent from each other and respectively surrounding the periphery of the rotating shaft. An end portion of the cooling flow passage communicates with the first space, and the other end of the cooling flow passage communicates with the second space. Even when the rotating shaft is rotating about the axial center, a coolant supplied to the second space can flow through the cooling flow passage and be supplied to the first space, thereby enabling cooling with high efficiency without restriction on the angle of rotation.

Abstract: It might happen that an inner column 3 is released from telescopic clamping and tilt clamping by an outer column 4 in a state before a vehicle fitting bracket 2 is fitted to a vehicle body. When a male steering shaft 6 is to escape from a female steering shaft 5, a come-out preventive member 7 is intruded into an inner peripheral annular groove 52 vicinal to an end portion of a female spline 51 on the front side with respect to the vehicle body. Then, the come-out preventive member 7 abuts on a shoulder portion 521 of the end portion, on the front side with respect to the vehicle body, of the inner peripheral annular groove 52, thereby surely enabling the male steering shaft 6 from escaping out of the female steering shaft 5.

Abstract: A control cable system for interconnecting an actuator (21) with a slave device (12) and comprising two Bowden cables (24,25) each comprising a sleeve (31, 33) and inner traction cord (32, 34) and a cable connector (26) for interconnecting the two cables, one cable (24) connecting to the actuator (21) and the second cable (25) connecting to the slave device (12), the connector (26) holding the two sleeves (31, 33) in a fixed relationship with the two traction cords (32, 34) being interconnected via a connecting device (29) which permits movement of the slave device (12) and second traction cord (33) without transmission of said movement to the said one traction cord and which transmits movement from the actuator (21) to said second traction cord (33).

Abstract: A rotating assembly includes a shaft having a driven end and a driving end. At least one rotating member coupled to the driven end. A support member is operatively connected to the at least one rotating member. A dynamic balancing system is operatively coupled to the support member. The dynamic balancing system includes a first balancing weight rotatably mounted to the support member. The first balancing weight is operatively connected to a first motor. A second balancing weight is rotatably mounted to the support member. The second balancing weight is operatively connected to a second motor. A controller is operatively connected to the first and second motors. The controller is configured and disposed to signal each of the first and second motors to rotate and to establish a desired position of the first balancing weight and the second balancing weight relative to at least one rotating member.

Abstract: A bicycle crank assembly is basically provided with a crank axle, a first outer shell member, a second outer shell member, a first crank axle supporting member and a second crank axle supporting member. The crank axle has an end portion with an external mounting surface and an internal mounting surface. The first and second outer shell members are arranged relative to each other with a space being formed between the first and second outer shell members. The first crank axle supporting member is disposed on the first outer shell member and supports the external mounting surface of the crank axle. The second crank axle supporting member is disposed on the first outer shell member and supports the internal mounting surface of the crank axle.

Abstract: A hybrid drive train for a motor vehicle, having an internal combustion engine for making available internal-combustion-engine drive power. A multi-step transmission has a transmission input and a transmission output. The transmission input can be connected to the internal combustion engine. The multi-step transmission is designed to set up a multiplicity of different forward gear ratios. An electric machine makes available electromotive driver power. The multi-step transmission is a range-change transmission having a first transmission group and a downstream second transmission group. The electric machine is connected to the input of the second transmission group.

Abstract: A hybrid drivetrain for a motor vehicle has an internal combustion engine, an electric machine, and a transmission arrangement for setting at least two different gears. The internal combustion engine and the electric machine are coupled to an input element of the transmission arrangement. A differential is coupled to an output of the transmission arrangement and is adapted to distribute motive power to two drive shafts. The electric machine and the internal combustion engine are coupled to a transmission input shaft of the transmission arrangement by way of a spur gear train.

Abstract: A method of manufacturing a roller cone drill bit may include forming a body of a single piece having an upper end and a lower end; machining at the lower end of the body at least two journals extending downward and radially outward from a central axis of the body; machining at least one of a ball passage, a hydraulic fluid passageway, a grease reservoir, and a lubricant passageway; and mounting roller cones on the at least two journals.

Abstract: An apparatus for removing a nut is described. The apparatus includes a housing, a cage, and a canted coil spring. The housing has a top surface, an interior sidewall, and a bottom surface. The interior sidewall defines an orifice that extends from the top surface to a lip. The interior sidewall includes a three-lobed cam and a groove. Each lobe has a lobe center line, a counterclockwise cam inner surface on one side of the lobe center line, and a clockwise cam inner surface on the opposite side of the lobe center line. The canted coil spring is received by the groove of the interior sidewall and the groove of the cage. The canted coil spring rotatably couples the cage to the housing. During nut removal, the housing rotates counterclockwise relative to the cage. The cage rotates counterclockwise to engage the nut, and the cage interfaces with the interior sidewall.

Abstract: A removal tool includes an elongate rod. A first end of the elongate rod is to be connected to and driven by a drive device, and a second end of the elongate rod is connected integrally to the first end. A direction from the first end toward the second end, which is substantially parallel to a longitudinal center axis of the elongate rod, is defined as a first direction. Along the first direction the second end is conically tapered and formed with plural splines which obliquely extend relative to the longitudinal center axis according a twist direction, wherein the twist direction generally conforms to a direction in which the removal tool is used to unfasten a fastener. Each spline has a circumferential surface having plural first teeth which obliquely extend relative to the longitudinal center axis according to the twist direction along the first direction.

Abstract: A hand tool for holding a plurality of wrench head tools on the end of a handle, comprising a handle with a handle hinge paw and at least two pivotal wrench head tools pivotally mounted to the handle hinge paw, at least one pivotal wrench head tool defining a second hinge paw and at least one pivotal wrench head tool defining a pivotal arm post. Wherein the pivotal arm post is pivotally mounted within the second hinge paw which is pivotally mounted within the handle hinge paw. The wrench handle may also comprise a folding hinge to allow both a smaller stowed position and a larger unfold or extended operational position for the hand tool. The handle may also comprise a central hub and/or further include additional non-wrench tools. The hand tool may also comprise a hinge locking mechanism for each folding and/or pivotal hinge.

Abstract: A design for a rotary drive both for a tool and for a workpiece to be rotationally driven is proposed. This rotary drive design contains a cylindrical basic shape which deviates from a circular cylindrical shape. The contour or the cross section through this basic shape has a plurality of rounded projections and rounded recesses arranged between said projections. The projections tangentially touch a circle having a maximum radius, while the recesses, for their part, tangentially touch a circle having a minimum radius. Deviating from this cylindrical basic shape, in the regions between the projections are configured conical surfaces, which are not instrumental in the transmission of torques, but take care of centering and alignment between the tool and the workpiece.

Abstract: A threaded fastener driving tool includes a proximal end portion, a distal driving head, and a torsion zone extending proximally from the driving head, The distal driving head has a central portion and a plurality of driving surfaces. Each pair of adjacent driving surfaces define a driving space therebetween. The driving surfaces and driving spaces are configured to engage a threaded fastener. The torsion zone includes a plurality of helical grooves bounded by non-cutting surfaces, each helical groove in communication with and extending proximally from at least one of the driving spaces. The helical grooves are configured to untwist and cause lengthening of the torsion zone when an input torque applied to the proximal end portion is insufficient to overcome an output resistance torque at the driving head. The torsion zone may comprise a plurality of twisted wires or cables. A method of manufacturing the driving tool is disclosed.

Abstract: A steady rest for centering a rotationally symmetrical workpiece in a space, the rest comprising two housing halves arranged at a distance from one another and connected together, a plate-shaped middle piece disposed between the two housing halves, the middle piece being mounted in the housing halves by means of an actuator piston which can be moved in an axial direction to the workpiece, two linear guide grooves disposed in both opposite large-surface end faces of the middle piece, with the guide grooves running in a cross-shaped arrangement and at an angle to a movement direction of the middle piece, two outer steady rest arms, each mounted in one of the linear guide grooves of the middle piece in a movable arrangement, and a middle steady rest arm attached to the middle piece between the outer steady rest arms.

Abstract: A glass cutting machine includes a worktable, a cutting mechanism positioned above the worktable, and a plurality of grasping assemblies rotatably positioned on the worktable for transporting glass plates. Each grasping assembly includes a support shaft rotatably received in the worktable, a positioning bar fixed to an end of the support shaft, and one or more grasping members positioned on the positioning bar. The worktable includes several rotating members, and each rotating member includes a support disc that can be rotated to drive the glass plate to rotate.

Abstract: A gun is presented including a frame; a barrel connected to the frame; and a magazine mechanically cooperating with the frame, the magazine having at least one projectile stored therein. The gun further includes an electronic beacon non-removably incorporated within the gun, the electronic beacon configured to emit at least one signal to be received by at least one electronic device located within a pre-established vicinity of the gun. The electronic device provides a notification indicating proximity of the gun. The electronic beacon may be a radio transceiver operating at least one of a plurality of frequencies.

Abstract: A modified bolt carrier for automatic recoil rifles and pistols preferably includes a shortened bolt carrier, a shortened buffer tube, a modified bolt key and an end cap. The shortened buffer tube is shortened by cutting-off a straight portion of a prior buffer tube. The modified bolt key includes a prior art bolt key, a rod yoke, a pair spring rods, a pair of compression springs, a spring support disc and a spring plug. The spring plug is biased outward from the shortened bolt carrier with the pair of compression springs. The modified bolt key is attached to the shortened bolt carrier and retained in upper and lower receivers of an automatic recoil rifle or pistol. The bolt spring is slipped over the spring plug and the bolt spring is retained by securing the end cap to the lower receiver with a lock pin.

Abstract: A tandem-type pneumatic brake booster, in particular for hydraulic vehicle brake systems, having a housing comprising a first and a second housing half shell, the interior of which is divided with the aid of a partition into a front and a rear booster chamber, wherein the partition has a centrally arranged, circular cavity, through which a control housing or a cylindrical control housing extension extends, and the partition rests sealingly against the control housing or the control housing extension by a sealing element, having a first and a second movable wall, which respectively subdivide the front and the rear booster chamber into a first low-pressure chamber and a first working chamber and into a second low-pressure chamber and a second working chamber, having at least one connecting conduit between the first working chamber and the second working chamber in order to equalize the pressure between said two working chambers.

Abstract: A linear actuator includes a cylinder main body. With respect to the cylinder main body, a slide table is disposed for reciprocal displacement through a guide mechanism, which is disposed on the cylinder main body. A stopper mechanism having a stopper bolt is disposed on one end of the slide table centrally in a widthwise direction perpendicular to the longitudinal direction of the slide table. In addition, when the slide table is displaced along the cylinder main body, an end of the stopper bolt comes into abutment with an end of a cover of the guide mechanism, whereupon the slide table becomes engaged therewith and movement of the slide table is stopped.

Abstract: A rotary actuator includes a housing, a first piston housing assembly comprising a first cavity and an open end, a rotor assembly rotatably journaled in said housing and comprising a rotary output shaft and a first rotor arm extending radially outward from the rotary output shaft to a first distal end comprising one or more first retainers, and an arcuate-shaped first piston disposed in said housing for reciprocal movement in the first piston housing assembly through the open end along a radius of curvature. A first portion of the first piston connects to the first rotor arm at a first end portion comprising one or more second retainers. The first retainers and the second retainers are intermeshed along the radius of curvature such that movement of the rotor assembly urges movement of the first piston and movement of the first piston urges movement of the rotor assembly.