Abstract: A connection device for fluid conduits. An annular gripper member is arranged in a housing and has an axially sliding actuating part, on which a plurality of clamping elements are provided and between the clamping elements and the actuating part there are bending regions which allow rocking of the clamping elements. Each clamping element has a radially projecting pressing part which axially opposes a support surface on the housing. If a conduit is to be released which is held in the annular gripper member, an external thrust is exerted on the annular gripper member to cause the clamping elements to be rocked into a releasing position relative to the conduit.

Abstract: A sealing ring for sealing off a joint between a fluid power line and a fluid power component to be connected therewith. At one axial side the sealing ring has two overpressure sealing lips arranged in a v configuration. At the opposite axial side a thrust portion is provided for cooperation with a gripping element. The thrust portion and an inner underpressure sealing portion provided thereon define a radially moving pivot ring. If the fluid power line is under vacuum, the pressure of the surroundings causes the pivot ring to be shifted inwards and the underpressure sealing portion is thrust sealingly against other surface of the fluid power line.

Abstract: A sealing device which is more particularly designed for pneumatic multiway valves. The device comprises a holding sleeve, which both at its outer periphery and also at its inner periphery has a plurality of axially spaced circumferentially extending holding recesses, wherein sealing elements are held and at least the inner sealing elements are constituted by sealing material injected into the associated holding recesses directly. Furthermore the invention provides a method for the simple possible of the such a sealing device.

Abstract: An annular seal arrangement for use between part placed one inside the other and able to be moved in relation to each other. The seal arrangement is constituted by a sealing ring, which has a seal housing having a substantially U-like cross section and in the form of a ring. The inner ring is elastically resilient while the outer ring functions a sealing element. The invention furthermore provides a valve fitted with such a seal arrangement, a hollow piston able to be used with it and a method for the production thereof.

Abstract: A sealing arrangement for valve has at least one sealing ring, which has a substantially U-like cross section of its housing ring, which is made up of a plurality of parts which are permanently connected together. In the ring space of the housing ring a single, integral sealing element is mounted so as to be able to yield radially and with the housing ring it constitutes a component which may be uniformly handled. A sealing part thereof extends out of the housing opening of the ring space. A sealing ring of this type may be locked in valve housings in order to provide a sealing action between the valve housing and the moving valve piston. The design of the sealing rings makes them suitable for robotized assembly.

Abstract: A sealing and stripper ring for a rod-like component has an annular support part on which a sealing lip and axially spaced from it a first stripper lip are provided. A second annular stripper lip is placed coaxially in front of the first stripper lip on the side opposite to the sealing lip. At least as regards its stripper part (which in the operational position contacts the circumferential surface of the rod-like component) the second lip is made harder or stiffer than the corresponding engagement part of the first stripper lip.

Abstract: A method of making sealing ring, for use in valves includes producing a cylindrical pressed cup from a film, and then slicing the cup in a direction normal to its longitudinal axis.

Abstract: A mounting plate for component such as valves or other members and device. In its two surfaces there is respectively a series or row of mounting recesses arranged so that the recesses of the one series are offset to those in the other series and between respectively two mounting recesses there is a supply duct. Via the supply duct it is possible for a medium such as energy or the like to be supplied. By the intermediary of the mounting recesses it is possible for component to be secured in place. By tapping the supply duct the medium necessary for the operation of the component may be supplied.

Abstract: A control device for piston and cylinder units comprises a sensor adapted to be operated by a moving member and arranged on a guide device which has at least one electrical track conductor. Via a contacting device the sensor is connected with the electrical track conductors so as to make possible the transmission of sensor signals without leads.

Abstract: A pneumatic shock absorber has a piston rod extending out of its cylinder whose pressure space adjacent to the piston is connected via an inlet check valve. An outlet valve to let off compressed air during damping motion of the piston has a valve piston running in a valve chamber which it divides into two chamber parts. The first chamber part connects a duct leading to the pressure space with an outlet valve. This connection may be interrupted by the end face of the valve piston acted on at least in part by the pressure in the pressure space of the absorber and cooperating with a valve seat. The second chamber part is connected with the pressure space or with the pressure source. There is a spring urging the valve piston towards the valve seat. As a result there are not losses in pressure in the two abutment positions and the damping effect is very even and continuous.

Abstract: A valve component group comprising a terminal plate containing fluid terminal ducts and a main valve arranged thereon. Between these two elements there is an intermediate plate which carries pilot valves for the main valve. For the supply of power to the pilot valves there are electrical leads with a connector thereon to provide a detachable electrical connection between the terminal plate and the intermediate plate. The main valve does not have to be supplied with any electrical power.

Abstract: A device for conducting a fluid or for conducting electricity has at least one supply member which is internally provided with supply conductors for the fluid of the electric current. On the outer periphery the member is provided with attachment recesses by way of which it may be firmly connected with other structures.

Abstract: The invention relates to a circuit assembly comprising a block-shaped mount adapted to be equipped with aligned rows of electromagnetically operated fluid power valve-like components, said assembly having internal connection ducts, which on the one hand communicate with the components and the on the other with ducts of a manifold mounted on one of the two end faces of the mount. The block-shaped mount is adapted to be fitted with components on two opposite side faces and there is an electronic circuit board running generally parallel to the direction of the rows of components at a right angle to the side faces of the mount fitted with the components. For making a direct electrical connection between the electronic circuit board and the components gripping terminals are placed on the surface of the electronic circuit board facing towards the block-shaped mount for cooperation with the contact plugs on the components.

Abstract: A linear actuator comprising a linear motor, more especially in the form of a pneumatic motor, which has a housing containing an axially moving piston which is connected with an actuating rod extending out of the motor housing at a working end thereof, a control device, for instance in the form of valve means, for operation of the motor, and a sensor means responsive to certain positions of the actuating rods. In order to simplify and cheapen production of such an actuator while facilitating and speeding up installation of the linear motor, the control device and sensor device are permanently connected to form a readily handled working unit, and the control device and the sensor device are arranged on the control end, opposite to the working end, of the linear motor.

Abstract: The flow regulating valve for pneumatic or other fluids comprises a housing with two valve spaces separated from each other by a partition and each having a port opening into them. The two valve spaces are able to be connected with each other by a cutout or transfer port in the partition. In one valve space there is a rotary valve member which covers the transfer port to a greater or lesser extent in accordance with the amount it is turned. On adjusting the position of the rotary valve member the effective size of the transfer port may be varied to control the flow of the fluid between one valve space and the other.

Abstract: The invention proposes a connecting plug device for electrical equipment and more particularly rows of solenoid valves in the case of which on one side of a housing there is a contact arrangement for cooperation with an arrangement of mating contacts on the item of electrical equipment. On two further sides of the housing there is a respective set of electrical plug connecting contacts. One plug connecting contact is connected with one plug contact of the contact arrangement and at least one further plug connecting contact is connected with the corresponding opposite plug connecting contact and with a further plug contact electrical, while the remaining plug connecting contacts are connected with the plug connecting contacts arranged offset in relation to the respective opposite plug connecting contacts.

Abstract: The invention relates to a negative mold containing a plurality of mold portions which can be detached from each other. It functions in particular for the manufacture of shapes consisting of plastic. The two mold halves enclose a molding chamber receiving the material to be shaped. In the chamber is arranged at least one insert abutting at least one projection which together form the negative for a surface depression to be produced in the shape. On the insert a fastening shank is arranged with the transition region being located in the region of the associated mold portion surface and being formed as gradation. Thereby the insert in contact with the mold half covers completely the orifice of the opening containing the shank and, in addition, projects beyond the opening edge.

Abstract: The present invention provides a protective device for a working member, such as the piston rod of a piston and cylinder actuator, which is arranged at least partly in a receiving member and is able to be moved and more especially slid, along a curved or straight path so that it projects to a greater or lesser extent out of the receiving member. The device is provided with a plurality of sleeve-like guard sections which surround the working member projecting out of the receiving member along the full length of the working member so that whatever the position of the latter any two adjacent guard sections overlap each other and are able to be slid in relation to each other, one of said guard sections being stationarily arranged on the receiving member and another guard section being arranged on the working member so as to move therewith so that in accordance with the actual axial extent of the part of the member to be protected the sections are telescoped into each other to a greater or lesser extent.

Abstract: It is a question of a piston and cylinder unit comprising a cylinder barrel defining a piston space, a piston able to run axially in said barrel with a support action due to a peripheral bearing surface of the barrel. The piston includes at least one annular running belt which is coaxially arranged thereon along part of the length of the piston. The belt has a surface facing radially outwards which makes contact with the inner bearing surface of the barrel with sliding fit to support the piston, while an inwardly directed surface of the belt bears on an outer peripheral surface of the piston, which is spaced from the bearing surface of the barrel. The belt further has an inwardly directed retainer spur fitting into a groove-like peripheral recess in the piston. The belt is made of a material with resiliently elastic properties and is interrupted at one position on its periphery so that in the fitted condition of the belt there is a closed interruption able to be opened out for fitting purposes.

Abstract: The invention provides a control circuit arrangement for solenoid valves, which has a timer adapted to supply the solenoid valve with a higher attraction current during an adjustable time starting with the beginning of a switching signal for the solenoid valve. After the time interval a low hold current flows until the end of the switching signal. For this purpose there is a semiconductor switch adapted to switch the flow of current through the solenoid valve. A logic gate arrangement is connected with an input of the switch and the gate arrangement is supplied with the output signal of the timer arranged to be triggered by the switching signal and the output signal of an oscillation generator. This circuit arrangement makes is possible to reduce a higher attraction current to a lower hold current in a simple and cheap manner, there only being a small overall size and as significant advantages it is possible for the arrangement to be converted for complementary logic.