Abstract: A microvalve array, which possesses a plurality of microvalves (5) produced by microfabrication. It is furthermore provided with an electronic control means (7), which comprises at least one function preset unit (23) for the programmed grouped functional linking of the microvalves (5). A fluid ducts system (6) is connected with the microvalves (5), the fluid ducts (12, 12′; 13, 13′; and 14, 14′) of such system being individually connected for customization, starting with a standardized arrangement in a fashion dependent on the functional valve linking, predetermined by the function preset unit (23) by opening and/or closing of passages.

Abstract: A choke valve, whose choke body comprises a cylindrical choke position plunging coaxially into an inlet duct. The inlet flow duct is connected on the one hand with an inlet and on the other hand communicates through transfer openings with outlet flow ducts extending through the wall of the flow duct, such outlet flow ducts begin connected with the outlet. Between the choke piston and the inlet flow duct wall a seal area is provided, which on resetting the choke body is shifted axially and, cooperating with the transfer apertures, sets the aperture for the pressure medium.

Abstract: A drive device comprising a closed hydraulic circuit which has a hydraulic drive adapted to be actuated by hydraulic medium and has a hydraulic pump responsible for the supply and removal of the hydraulic medium to and from the hydraulic drive. For the operation of the hydraulic pump an electric motor is provided. The activation of the hydraulic drive is controlled by the operational state of the hydraulic pump.

Abstract: A linear drive mechanism comprising a moveably guided output member (12). The output member (12) is guided on a supporting device (15) in a supporting area (13) of the housing (1). A position determining device (54) protrudes laterally from the output member (12). The position determining device moves along a position determining area (55) during the axial movement of the output member (12). The support device (15) extends only over part of the perimeter of the output member (12), wherein the output member (12) is exposed along a section of the perimeter so that an open space (67) is provided, thereby forming part of a position determining area (55) which can be traversed by the position determining element (54). This makes it possible to combine effective guidance with a compact linear drive design.

Abstract: A servicing device for compressed air handling is proposed, which possesses a principal body (2) and a receiving shell (4) releaseably attached thereto by means of a bayonet connecting device (12). The rotary movement necessary for producing the bayonet connection of the receiving shell (4) is produced using a rotary drive means (33), which is arranged on a holding body (34), on which the receiving shell (4) is mounted in a rotary fashion. It is in this manner that simple mounting and removal of the receiving shell is rendered possible even when there is little space.

Abstract: A circuit device for the regulation of the coil current flowing through a solenoid coil arrangement is proposed. It comprises a regulating means having a measuring arrangement for measuring the coil current and adapted to regulate the coil current in a manner dependent on the measured coil amperage, means for producing a attraction current, which regulated by clock pulse switching, flowing through the solenoid coil arrangement and a switching over means for reducing the coil current after elapse of an attraction time to a lower clock pulse switched hold current flowing until the end of a switch signal. The measuring arrangement is switched outside the freewheel circuit in which during the freewheel condition, existing in clock pulse switching intervals, of the solenoid coil arrangement the freewheel current flows. This means that the input voltage does not have to be adapted to the desired attraction current and the freewheel current does not produce any power loss in the measurement arrangement.

Abstract: A rod-less linear drive whose housing (2) delimits an interior space (4), in which a drive part (5) is located. The housing (2) is provided with a slot-like longitudinal opening (24), which on either side is flanked by a housing limb (25 and 26). An entraining part (35) connected with the drive part (5) projects through the longitudinal opening (24) to the outside, where it is kinematically coupled with a slide (36). The slide is supported by means of a guide means (41) on the housing (2), one of the two housing limbs (26) being extended through and past the longitudinal opening (24) and on the side, facing the other housing limb (26), bears the guide means (41).

Abstract: A tabular assembly base (2) is proposed, which serves for the detachable fitting of a valve unit (3). The assembly base (2) is modular in design and comprises a plurality of individual base segments (23) joined together as a rigid unit. The valve unit (3) comprises several valve modules (4). Underneath the base segments (23) several connection segments (25) are located which are associated with the valve modules (4). They possess load ducts (33) communicating with the valve modules (4) and having an electrical and/or fluid power functional unit (38) associated with them at least in part.

Abstract: A sealing ring having a base body manufactured of thermoplastic synthetic resin material and a sealing body of elastomeric synthetic resin material. The two bodies are molded permanently on one another and each possess a sealing section, which serves for producing a sealing action at sealing faces of two oppositely placed components which are to be sealed in relation to each other.

Abstract: A fluid power rotary drive device, which possesses two oppositely moving drive pistons and an output drive part in mesh with the same. With the aid of a position presetting means it is possible to preset an intermediate position of the output drive part. For this purpose an abutment unit is provided, which has two abutment parts arranged as an axial extension of the two drive pistons. The abutment unit is able to be moved relatively to the drive piston into a positioning setting, in which the two abutment parts are both in engagement with the respectively associated drive piston, something which corresponds to the desired intermediate position.

Abstract: A compressed air servicing unit is provided, which possesses a plurality of modules, such as pressure controllers, filters oilers or the like, adapted to be attached together in any desired order and having module housings, one of such modules being designed in the form of a monitoring unit for the other modules and being electrically connected with same. A bus line, connecting the modules together, of a bus system is provided and furthermore the monitoring module performing control functions as well is provided with a central unit of the bus system and the other modules are provided respectively with a bus subscriber station, sensors and/or actuators present in or on a module respectively, being connected with the associated bus subscriber station. This means that the modules may be arranged in practically any desired order and in an desired number without any problem occurring with electrical wiring or due to incorrect bus subscriber station connections.

Abstract: An apparatus for the damped positioning of a piston running in a cylinder at one fixed abutment at least and more particularly for setting in a terminal position. The apparatus includes sensor means connected with an electronic regulating means for detecting the piston position as an actual value signal. A valve means adapted to be regulated by the regulating means serves for regulated braking of the piston prior to reaching the respective desired position by influencing opposing pressure in the cylinder outlet side. For forming the setting quantity for the proportional valve a position regulating means is provided which is modified by a value dependent on the respective speed and/or acceleration of the piston. This apparatus ensures an extremely accurate regulation of position simply by detecting of the position of the piston as an actual value signal. It is more particularly possible to brake the piston in the terminal positions with a damping action that an additional damping system is no longer necessary.

Abstract: A connecting means for two parts in a fluid conducting assembly. The connecting means comprises coupling means located on joint sides opposite to one another on the parts, such means rendering possible a displaceable attachment together of the parts with an interlocking effect in the assembly direction. Furthermore connecting members are provided to act on opposite sides of the parts, of which at least one connecting member, is able to be locked using holding and securing means on the pushed together parts in order to set the relative position of same. Simultaneously the setting in place of a clamping means acting on the connecting members is facilitated. The connecting means renders possible a simple, secure and rapid coupling of the parts.

Abstract: A slide drive device has a principal housing, in which at least one actuating element able to be driven linearly is arranged. Externally on the principal housing there is a slide kinetically coupled with the actuating element. Two stroke limiting means render possible a variable preset of the two end positions of the slide and each comprise an adjustable arranged on the one part and a counter-abutment arranged opposite to same on the other part. The one adjustable abutment is arranged on the slide and the other adjustable abutment is located on the principal housing. Both abutments are provided in end regions facing in the same axial direction, on the slide and, respectively, on the principal housing.

Abstract: An attachment device with which a sensor may be fixed to the outer periphery of a cylinder barrel of a fluid power operated drive cylinder. It comprises an attachment clamp, on which a holding face is provided for securing the sensor and cooperating with the peripheral face thereof. The holding face is formed by an undercut holding groove and provides also a working face against which a positioning element on the sensor may be engaged.

Abstract: A control device is proposed for employment in the transfer of control signals between a field bus (2) and at least one load (5). It comprises a control module (23), which possesses a bus communication unit (24) able to be connected with the field bus (2) and which is so able to be attached to a load (5) that a contact means (27) provided thereon is coupled with such load (5). On the control module (23) in addition to the contact means (27) at least one additional signal input (35) and/or signal output (33) is provided which is connected with the bus communication unit (24) for coupling up at least one further load (5') and/or sensor.

Abstract: A solenoid valve, whose valve member is acted upon by a feed pressure in a closed setting by the feed pressure obtaining in an inlet duct. In order to render possible rapid switching operations a moving ancillary drive member is provided which is acted upon by a control pressure and which acts through an outlet duct in the opening direction, and hence against the feed pressure, on the valve member.

Abstract: A piston for a fluid power cylinder, which possesses two separate piston parts, which are detachably set together in a joint region axially with a sealing action. Each piston part has a rigid carrying element, which is molded on a holding portion, which in its radially outer region has a lip seal comprising sealing material with rubber-elastic properties and serving for sealing on a piston running face. The respective lip seal and the holding portion associated with same are constituted by components of an integral elastic body comprising a sealing material with rubber-elastic properties. Such elastic body is molded on the respectively associated carrying element. The two elastic bodies are in sealing contact with one another in the joint zone.

Abstract: A pressure gage device having a pressure gage with a double function. On the one hand it serves for conventional display of pressure and on the other hand it furthermore renders possible a variable setting of the displayed pressure.

Abstract: A device for detection of angular positions of a shaft adapted to be rotated about its longitudinal axis. An actuating member keyed on the shaft moves along an arcuate path during rotation of the shaft. At least one sensor is adjustably secured by means of a holding means on an arcuate guide of a sensor carrier so that it may be positioned along the path of movement of the actuating member. In order to render possible accurate resetting, on the sensor carrier teeth are provided on the sensor carrier following the curvature of the arcuate guide, such teeth being engaged by a setting gear wheel rotatably mounted on the holding means.