Abstract: The present disclosure provides an automatic chuck apparatus comprising a mechanical chuck, a mechanical chuck mounting bracket, a hydraulic motor, a lifting mechanism, a chuck key and a lifting cylinder. The mechanical chuck is mounted above the mechanical chuck mounting bracket. The hydraulic motor, the lifting mechanism and the lifting cylinder are mounted below the mechanical chuck mounting bracket. The hydraulic motor is configured to control the rotation of the chuck key, the lifting cylinder is configured to drive the chuck key to ascend or descend through the lifting mechanism, thereby the mechanical chuck is locked or loosened by the chuck key. The present disclosure further provides a grinding wheel cutting apparatus and a cutting method. In the present disclosure, the locking of the chuck is automatically controlled, thereby improving the working efficiency and ensuring sufficient locking force of the chuck.

Abstract: A universal plate system for mounting tool heads and/or components on manufacturing machines includes a fixed plate assembly on the x-carriage of the manufacturing machine. A mobile plate assembly is configured to removably attach to the fixed plate assembly, to provide mechanical support and electrical connectivity to a tool head assembly mounted to the mobile plate assembly. The mobile plate assembly can be easily detached from the fixed plate assembly and replaced with a different mobile plate assembly having a different tool head assembly mounted thereon. Mating of the mobile plate assembly to the fixed plate assembly provides the mechanical and electrical connection between the manufacturing machine and the newly mounted tool head assembly, thus permitting quick changes of the tool head assembly to be made.

Abstract: A bonding fixture. In some embodiments, the fixture includes: a plate for supporting a central region of the wafer, the central region including 80% of the area of the wafer; and a frame for supporting: the edge of the wafer, and the edge of the plate, the frame having: a first vacuum passage, for pulling the wafer against an upper surface of the frame, and a second vacuum passage, for pulling the plate against the frame.

Abstract: Provided is a clamp system with enhanced functionality achieved by detecting the behavior of an object to be clamped, using a stroke-end position detector that has been used for switching stroke operations. A clamp device 1 has an output member 12 which executes a stroke movement causing a change in the distance by which a coil 15 is inserted into a hole 14 having a bottom. A converter 23 outputs a measurement value of the inductance of the coil 15. The inductance of the coil 15 when a work W has been clamped by the output member 12 is stored in a work clamp point memory 22e, and a clamp area indicating a variation range permitted with respect to a work clamp point is set in a clamp area memory. During processing of the work, a control unit 2 measures the inductance of the coil 15, determines whether the work clamp point is within the range of the clamp area, and, if the range is exceeded, issues a signal indicating an emergency stop.

Abstract: An apparatus for securing a substrate includes a detachable plate configured to reversibly attach to a base of a chuck. The base of the chuck includes one or more base-substrate vacuum inlet channels and one or more base-plate inlet channels. The detachable plate includes one or more first vacuum reservoirs and second vacuum reservoirs. The detachable plate is further configured to establish a fluidic connection between the one or more first vacuum reservoirs and the base-plate inlet channels for forming a first vacuum seal between the detachable plate and the base. The detachable plate further includes one or more pass-through channels for fluidic connection with the one or more second vacuum reservoirs for forming a second vacuum seal between the detachable plate and the substrate.

Abstract: A device for transferring micro light-emitting diodes includes a collection tube and an elastic port. The collection tube has a first end and a second end arranged oppositely, and a caliber of the collection tube is greater than a diameter of the micro light-emitting diodes. The elastic port is disposed at the first end, and a caliber of the elastic port is less than the diameter of the micro light-emitting diodes. The micro light-emitting diodes are pressed into the collection tube from the elastic port. The collection tube can store the micro light-emitting diodes. The device can effectively improve transfer speed.

Abstract: A workpiece support includes a workpiece support element and a suction device. A workpiece is mounted on a workpiece side of the workpiece support element during machining. Towards a remote lower side, the workpiece support element is permeable to a waste air flow loaded with machining-related emissions. The suction device includes a vacuum generator and a suction line. The vacuum generator is configured to generate the waste air flow flowing from the workpiece side to the lower side, to suck off the waste air flow into the suction line in a flow direction and to subsequently discharge the waste air flow via the suction line. The suction line has a suction opening having a flow cross section which can be passed by the waste air flow in the flow direction. An opening width of the flow cross section and/or a position of the suction opening can be variably adjusted.

Abstract: A system for supporting workpieces comprises a base and a plurality of support members (1), each support member (1) comprising a plate (11) and means for positioning the plate (11) in relation to the base. In at least some of the support members (1). The means for positioning the plate (11) comprise at least three controllably extendable members (13) arranged for determining the position and inclination of the plate (11) in relation to the base, thereby allowing for controlled positioning of the plate (11) in relation to the base and for controlled inclination of the plate (11).

Abstract: A swiveling device includes a housing, an output shaft mounted in the housing and led out of the housing, a drive arranged in the housing for swiveling the output shaft, a swiveling element connected for conjoint rotation to the output shaft in the region thereof which is led out of the housing, and with a receptacle mounted in the swiveling element and connected thereto, wherein the receptacle can be arranged at different angular positions. The swiveling device provides that the swiveling element has a receiving profile for the receptacle, and the receptacle has a mating profile which corresponds to the receiving profile, wherein the receiving profile and the mating profile are configured so that the profiles can be arranged in different positions of receptacle and swiveling element with respect to each other.

Abstract: An air rest button system comprising a body element and a plunger element configured to accept a rest button. The plunger element generally is configured to be inserted into a base in the top of the body element. The plunger element in turn has a bore or hole therein configured to receiving an air rest button, which may be substituted for other air rest buttons, facilitating the modularity of the present system.

Abstract: A machining tool assembly is provided for machining a blank to form a firearm lower receiver. The assembly includes a pair of side plates positionable on opposed sides of the blank to capture the blank therebetween. A template plate having a template aperture is adapted to be removeably attachable to the side plates. The template aperture is aligned with a top surface of the blank and is adapted for machining a cavity within the blank having a peripheral contour complimentary to a peripheral contour of the template aperture. A centering mechanism is adapted to be removeably attachable to the template plate, with the centering mechanism including an opening aligned with a corresponding void formed on the blank to align the blank with the template plate.

Abstract: The invention relates to a sound absorber comprising a housing with an inlet for connection with the exhaust gas line of a suction gripper, the housing comprising at least one elastic segment comprising at least one though hole, and also to a process of sound absorption for a suction gripper. The application of pressurized exhaust gas to the elastic segment leads to its expansion and to enlargement of the opening of the through hole. The expansion and/or the elasticity of the elastic segment in which the through hole is arranged, and the passing of the exhaust gas through the opened through hole in the elastic segment reduce the sound emitted along with the exhaust gas.

Abstract: The device (1) for locking workpieces on machine tools comprises:—a base body (2) fixable to a machine tool (M) and provided with an oil hydraulic cylinder (3, 4, 5); 5—a rod (8, 9) partly inserted in the oil hydraulic cylinder (3, 4, 5) slidably;—roto-translation means (14, 15, 16) designed to divide the motion of the rod (8, 9) into:—a first stretch (12) of roto-translation; and—a second stretch (13) of translation; 10—a clamp element (19, 20) associated with the rod (8, 9) and movable between:—a home configuration;—an intermediate configuration; and—an operating configuration; 15—at least a prismatic guiding body (21) associated with the base body (2) and prismatically couplable with the clamp element (19, 20) during the shifting of the rod (8, 9) along the second stretch (13).

Abstract: The fluid clamp apparatus includes: a sliding piston member that vertically partitions its cylinder bore; first and second fluid pressure operation chambers; a fluid passage that, during an upward light-load stroke of the piston member, causes the back pressure in the second fluid pressure operation chamber to be received by the output rod to advance the output rod; a force multiplying mechanism that, during a heavy-load stroke of the piston member, multiplies the force acting on the piston member and transmits this force to the output rod; and a link mechanism that, during unclamping lowering operation of the piston member, links together the output rod and the piston member after lowering by a predetermined stroke amount.

Abstract: A treatment device for medical and/or cosmetic therapy includes a negative-pressure chamber receiving a lower half of a person's body. The negative-pressure chamber is designed as a tube and has an admission opening sealed off from the person's body by a closure element. A first part of a table is arranged in the interior of the negative-pressure chamber. A second part of the table is arranged outside the negative-pressure chamber. The first part and the second part are each guided longitudinally on a linear guide. The first part can be moved at least partially out of the negative-pressure chamber and the second part can be moved away from the admission opening. A synchronization between the first part and the second part allows the first and second parts to be moved at the same speed in the same direction.

Abstract: A platen support structure adapted to thermally insulate a heated platen portion from a cold base plate while providing substantially leak-free gas transport therebetween and while allowing thermal expansion and contraction of the platen portion. Various examples provide of the support structure provide a tubular flexure having an internal gas conduit, a platen portion mounting tab connected to the flexure and having an internal gas input slot that is in fluid communication with the internal gas conduit of the flexure, the platen portion mounting tab being adapted for connection to a platen portion of a platen, and a base plate mounting tab connected to the flexure and having an internal gas output slot that is in fluid communication with the internal gas conduit of the flexure, the base plate mounting tab being adapted for connection to a base plate of the platen.

Abstract: A device for handling an artifact of substantially cylindrical shape, having a bed (10) and supporting means fixed to the bed (10) and connected to actuators. The supporting means being positioned along at least an arc of circumference lying in a plane orthogonal to the development axis ? of the bed (10) and having rolling elements (3) adapted to support and handle an artifact, at least one of them being motorized. Each rolling element (3) is connected to one of a plurality of corresponding actuators operatively connected to each other and adapted to regulate a movement of the rolling elements (3) in response to forces exerted by the artifact on each rolling element (3), in such a way as to distribute the forces uniformly on each rolling element (3) to position one or more resultants of the forces in one or more points.

Abstract: Provided is a machine tool which performs a cutting work on a workpiece, in which holes are provided at three or more points in a circumferential direction of a jig in the vicinity of a point at which the jig comes into contact with the workpiece when the workpiece is placed on the jig, and the workpiece is moved toward a rotation center of the jig by blowing air from an air supply unit toward the workpiece through the holes.

Abstract: A pin actuated printhead includes an orifice through which a material is ejected, a chamber to hold the material to be ejected, a channel connecting the chamber to the orifice, and an actuated pin, to enter the orifice and to eject the material from the orifice. The printhead is configured to eject a material with a viscosity of 10,000 cP or more at an elevated temperature.

Abstract: The die cushion force setting apparatus according to an aspect of the present invention allows die cushion forces (component forces) acting on plural driving shafts to be set easily, makes it easy to apply strong or weak die cushion forces to a complex-shaped drawn part in a plane of a cushion pad, and provides a smooth die cushion force distribution. An operator manually enters a total die cushion force, axial component force of a left front hydraulic cylinder, and center-of-force position by operating an input device. Based on the information entered via the input device, the numerical computing device B1 calculates axial component forces of three hydraulic cylinders through numerical computations. The one axial component force thus entered and three axial component forces thus computed numerically are set as the axial component forces of four hydraulic cylinders.

Abstract: A variable hydrostatic track system for vertical lathes includes a plurality of sectors arranged between the periphery and the central opening of an annular base. Each sector includes an upper housing with a hydraulic fluid outlet such that when the injected hydraulic fluid overflows from the housings, it forms a film between the rotating chuck and the sectors. The track system further includes a positioning mechanism having a plurality of hydraulic cylinders fixed on the annular base in a radial direction between the central opening and the sectors. The rod of each hydraulic cylinder is coupled to a piston and to one of the sectors. Each sector is guided in a radial guidance element such that, due to the action of the hydraulic cylinder, the sector is movable between an inner radial position and an outer radial position.

Abstract: An apparatus for securing an HGA to a tester includes a housing with a cylindrical cavity disposed about an axis, and having, at its top end, a mounting surface with a central aperture, for receiving an HGA base plate with a boss hole of the HGA overlying the central aperture. Axially elongated clamp fingers, radially dispersed about a spreader pin, move along the axis between (i) a loading position with upper ends extending through and relatively far beyond the central aperture, and (ii) a clamping position with the upper ends disposed at or near the mounting surface. With an HGA on the mounting surface, and the clamp fingers at their loading position, the clamp fingers are driven downward, while simultaneously, the clamp fingers are driven outward by the spreader pin, and the clamp fingers engage boss hole edges, securing the HGA to the tester.

Abstract: In an object positioning and fixing device that positions and fixes a work pallet on a base member: a reference seating surface is formed on the base member; a contacting surface is formed on the work pallet; fitting cylindrical portions of a plurality of reference members are fixed in a plurality of fitting holes in the base member; a plurality of annular engagement members are installed in the work pallet; each of the reference members has an engagement projection; a base end contacting surface of the base end of the engagement projection is brought into contact with the reference seating surface so as to set the height position of the engagement projection; and the annular engagement member engaged over the outside of the engagement projection is elastically deformed in the radially outward direction so that it tightly contacts against the tapered engagement surface.

Abstract: A holding device including a first sucking section for sucking a wafer (substrate) from a side on which a dicing tape (supporting film) is adhered; a structure that supports a dicing frame (frame part) and covers a first region which (i) is on a surface of the dicing tape to which surface the wafer is not adhered and (ii) is between the wafer and the dicing frame; and a second sucking section for sealing a boundary between the structure and at least one of the dicing frame and the first region.

Abstract: One example of the present disclosure relates to a method of processing first and second workpieces. The method includes constraining the second workpiece; abutting first and second workpieces together to form a joint; applying first and second selectively adjustable forces against the first workpiece to bias the first workpiece against the second workpiece; friction stir welding the first and second workpieces along the joint; maintaining the forces equal to each other while friction stir welding; and automatically varying at least one of the forces responsive to thermal size variations of the first and second workpieces. An apparatus for carrying out this method is also provided.

Abstract: An optical fiber fusion splicer includes: a windshield cover having a rotating shaft and rotating around the rotating shaft so as to be openable and closable; a cable member wrapping unit coupled and fixed to the windshield cover on the same axis as the rotating shaft of the windshield cover or formed as a portion of the windshield cover, the cable member wrapping unit being rotatable in a normal direction or in a reverse direction around the rotating shaft; a first cable member winding unit that is a rotary pulley, a non-rotary pulley, or a rotary gear; and a closed-loop member including a deformable cable member wound around the cable member wrapping unit and the first cable member winding unit, the closed-loop member constituting a closed loop.

Abstract: A clamp for selectively inhibiting movement of a first object relative to a second object includes (i) a first clamp component coupled to the first object; (ii) a second clamp component coupled to the second object; and (iii) a fluid source that directs a fluid to the second clamp component to create a fluid bearing between the first clamp component and the second clamp component that allows for movement of the first clamp component relative to the second clamp component, and wherein the fluid source directs less fluid to the second clamp component to inhibit relative movement.

Abstract: An approach is provided for aligning and leveling a chip package portion. The approach involves filling, at least partially, a reservoir formed between a first sidewall portion having a first slanted surface and a second sidewall portion having a second slanted surface with a fluid. The approach also involves placing a chip package portion into the reservoir. The approach further involves draining the fluid from the reservoir to cause the chip package portion to align with respect to a center of the reservoir. The chip package portion aligns with respect to the center of the reservoir and levels based on a relationship between the chip package portion, an angle of the first slanted surface, an angle of the second slanted surface, and the fluid. The chip package portion is secured in the aligned and leveled state by a molding compound.

Abstract: The present invention provides a work piece chuck of manipulator in the field of mechanical technology. The chuck comprises a chuck sleeve and an ejector pin set within the chuck sleeve. An elastic clamping element is provided at the front end of the chuck sleeve. The ejector pin could move between a first position and a second position along the axial direction of the chuck sleeve. When the ejector pin is in the first position, the outer circumference of the ejector pin extrudes the clamping element to distort and expand outward to form an expansion state. When the ejector pin is in the second position, the outer circumference of the ejector pin is out of contact with the clamping element to restore the clamping element. The chuck has a number of advantages including firm connection, high reliability and high use value.

Abstract: The invention relates to a deblocking device and an associated method for deblocking optical workpieces, for example, eyeglass lenses. The deblocking device has a first moving apparatus for rotating a workpiece blocked on a block piece about a workpiece rotational axis, a nozzle assembly having a nozzle for discharging a high-pressure pressure medium jet in a direction substantially perpendicular to the workpiece rotational axis onto an edge area between the workpiece and block piece, and a second moving apparatus for generating a relative motion between the workpiece and the nozzle along the workpiece rotational axis.

Abstract: A mandrel for producing a fiber-reinforced composite part, in particular a blade for a wind turbine is disclosed. The mandrel includes an expandable body with an outer surface onto which a fiber material of the fiber-reinforced composite part is layable out. The expandable body is expandable in an expanded state, wherein in the expanded state the outer surface forms an interior shape of the fiber-reinforced composite part to be produced. Moreover, the expandable body is collapsible in a collapsed state.

Abstract: Machine (10) and method for treating containers (12) of liquids comprising in succession at least a loading station (15), into which the containers (12) to be treated are loaded, and all disposed according to a determinate first orientation, and a washing station (17), in which the containers (12) are subjected at least to washing and are disposed in a second orientation able to promote the fall due to gravity of the dirt and/or washing liquid present in the containers (12). The machine (10) comprises, downstream of the washing station (17) and outside it, a manipulator device (41) which automatically rotates the containers (12) exiting form the washing station (17) so as to reposition the containers (12) according to the first determinate orientation.

Abstract: A sputtering device includes a chamber; and a substrate transferring unit for loading a substrate into, or unloading the substrate from the chamber, the substrate transferring unit including a gas injection assembly forming a gas cushion between the substrate and an upper surface of the substrate transferring unit.

Abstract: The present invention relates to a method and apparatus to be used when welding two abutting sections of pipe or tubing, and also to purge blocks for establishing a localized inert atmosphere inside two abutting pipe sections in the region of a desired weld joint. The present invention comprises an inflatable bladder with elongated engaging members that can be removable positioned within the ends of two abutting pipe sections in order to center the two abutting sections of pipe and create the purge block.

Abstract: The present invention is an improved cutting board device. The device allows a user to prepare food on one side of the cutting board while the other is being cleaned. The device provides a user a quick and easy transition to a new, clean, cutting board work surface without the need to carry waste to a disposal bin, without having to stop to wash and dry the soiled surface of the cutting board.

Abstract: A method and system of aligning color filter array are disclosed. Other embodiments are disclosed herein.

Abstract: A group of fixtures for thin-walled shell/cylindrical components (10) while they are being machined internally and externally, has a mounting base (1) having mounting holes, positioning pins and clamps to locate one end of the thin-walled component. A supporting arbour or cylinder (5) is fixed in the base. A circular lid (12) is fixed to the supporting arbour or cylinder and has a wedged step to locate the other end of the cylindrical component for internal and external machining, or the major open end of shell component for internal machining. A pair of modified vehicle wheel inner tubes (8) are disposed around the supporting arbour or cylinder. A multi-layered sacrificial liner (7) surrounds the pressure element and is adapted to fit between it and the thin-walled components.

Abstract: A workpiece adjustment assembly is disclosed. The assembly can include a shaft, a spherical bearing, and a wafer support. A spherical housing receives the spherical bearing and allows the bearing to rotate therein. The housing and bearing may form an air bearing. A seal may be formed in the housing to prevent gas from the air bearing and the ambient atmosphere from migrating to a process chamber side of the housing. A set of spherical air pads may be positioned on an ambient side of the bearing to press the bearing against the housing when the process chamber is not under vacuum conditions. The seal can include a set of differentially pumped grooves. The spherical bearing enables the wafer manipulation end, and a wafer attached thereto, to be moved with four degrees of freedom. The arrangement facilitates isocentric scanning of a workpiece. Methods for using the assembly are also disclosed.

Abstract: In a clamping device, a detection mechanism detects a state of clamping/unclamping and includes: a detected body that moves together with a piston and a piston rod; a circuit board disposed to face the detected body and capable of detecting the position of the detected body; and an indicator lamp that is connected to the circuit board and is lit/extinguished depending on the state of clamping/unclamping. By pressing a setting button provided on the detection mechanism when the rotation angle of the arm is changed, the second detection position of the circuit board for detecting the unclamped state is changed, making it possible to detect the detected body at a newly set detection position.

Abstract: A clamping system for the purpose of securing clamping blocks in place on a clamping bar, wherein each clamping block comprises at least one swivel element with a clamping lever disposed thereon, which swivel element laterally projects from the clamping bar, thereby making it possible for the clamping lever to engage in a recess or under a projection of the clamping bar where it is able to interact with the clamping bar, thus producing a clamped connection.

Abstract: A stage unit may include a frame, a first guide device, a stage, a second guide device and a pad. The first guide device may be arranged over an upper surface of the frame and configured to guide the stage in a first direction. T he stage may be movably connected to the first guide device. The second guide device may be arranged over an upper surface of the stage and configured to guide the pad in a second direction substantially perpendicular to the first direction. The pad may be movably connected to the second guide device and configured to support a substrate. Therefore, the substrate may be supported by and uniformly floated by the frame, the stage and the pad.

Abstract: An annular piston is vertically movable and rotatable. A guide groove is provided in an outer peripheral portion of the annular piston, and an engaging ball to be fitted into the guide groove is provided on an inner peripheral wall of a cylinder hole. A transmission mechanism prevents the clamp rod and the annular piston from rotating relatively to each other and permits them to move relatively to each other in a vertical direction. When the clamp rod is moved from a released raised position to a locked lowered position, the annular piston descends while rotating via a rotational groove and the engaging ball, and the annular piston causes the clamp rod to rotate, causing the clamp rod to descend straight down.

Abstract: A vacuum hold-down system for use with workpieces of various shapes and/or sizes is disclosed. The system comprising a vacuum hold-down table defining a mask support plane and an apertured vacuum table mask which is selectably positionable on said mask support plane, wherein said vacuum hold-down table and said vacuum table mask is configured to define a plurality of selectable different contiguous arrays of vacuum apertures, by suitable relative positioning of said vacuum table mask and said vacuum hold-down table in said mask support plane.

Abstract: A chemical mechanical polishing to that can provide uniform polishing across a wafer even when polishing hard wafers such as AlTiC wafers used in the formation of magnetic recording sliders. The chemical mechanical polishing to has a wafer carrier that includes a diaphragm or bladder that is configured such that an inner portion of the bladder can be pneumatically pressurized so as to bow outward, while outer portions remain unpressurized.

Abstract: A clamp has a housing with a piston assembly positioned in the housing. A detent mechanism is coupled with the piston rod and is positioned in the housing. A clamping arm is coupled with the piston rod. The clamping arm is moved by a biasing mechanism from a position parallel to the piston rod, when in a retracted position, to a position substantially perpendicular to the piston rod, when in a clamping position.

Abstract: A media carrier, adapted to hold a plurality of pieces of magnetic media, is disclosed. This media carrier can be placed on the workpiece support, or platen, allowing the magnetic media to be processed. In some embodiments, the media carrier is designed such that only one side of the magnetic media is exposed, requiring a robot or other equipment to invert each piece of media in the carrier to process the second side. In other embodiments, the media carrier is designed such that both sides of the magnetic media are exposed. In this scenario, the media carrier is inverted on the platen to allow processing of the second side.

Abstract: A protective chuck is disposed on a substrate with a gas layer between the bottom surface of the protective chuck and the substrate surface. The gas layer protects a surface region against a fluid layer covering the substrate surface. In some embodiments, the pressure fluctuation at the gas layers is monitored, and through the dynamic feedback, the gas flow rate can be adjusted to achieve a desired operation regime. The dynamic control of operation regime setting can also be applied to high productivity combinatorial systems having an array of protective chucks.

Abstract: A protective envelope for a lid of a plastic cup comprises a vacuous plastic film stuck on the top of the lid which was beforehand vaporized by an antiseptic liquid, without alcohol, then dried. The plastic film includes a detachable part, activated by a thread to be pulled, which is positioned above the opening to drink of the lid. So, when a consumer is ready to drink, he removes the detachable part by pulling the thread, so freeing the opening to drink. With such protection the lid is protected from bacteria and virus which can cause diseases. In brief, the steps of conception of the antiseptic lid are: to vaporize the lid with an antiseptic liquid without alcohol, to dry the lid, to put a thin film of plastic onto the lid by positioning the detachable part over the drink opening and to stick the film onto the lid by means of a vacuum.

Abstract: A composite fabrication vent assembly for connection to an inflatable bladder, the combination of a vent assembly and an inflatable bladder, and a method of mechanically connecting a vent assembly and a bladder. The vent assembly comprises a body member having a first clamping surface, a clamping member having a second clamping surface, and a carriage member interconnecting the body member and the clamping member, with the first and second clamping surfaces in opposing relationship. With the open end of an inflatable bladder inserted between the opposed clamping surfaces, the carriage member is adapted to translate the body member and clamping member toward one another to form an airtight seal with the inflatable bladder. A controlled source of pressurized gas, connected to a gas inlet of the vent assembly, can then inflate and deflate the bladder in a controlled manner through one or more passageways in the vent assembly.

Abstract: A gripper device (10) is provided for mounting rubber elastic rings (5) on the inner wall (62) of a workpiece opening and/or on the exterior of a workpiece. The device includes a basic housing (12), forming jaws (14) that are displaced in relation to the basic housing (12) and bearing jaws (16). To displace the plate element together with the jaws that are located on the element in an axial direction, the element is provided with a piston (20) which engages in a piston cylinder (22) in the basic housing. The displacement of the jaws that are located on the plate element (18) is mechanically coupled by a common actuator (24) and the actuator (24) is driven by an actuator piston (25) that is located in the piston (20).