Abstract: A fluid control element comprises a housing, a control chamber (12) which is formed in the housing and into which at least two flow channels (16, 16′) open, at least one sealing seat (14, 14′) located in the control chamber (12) and associated with the flow channels, and a sealing and actuation element (13) arranged in the control chamber (12) and surrounded by elastic material, which element is pivotally mounted on the housing and can be moved between a closed position, in which it covers a sealing seat (14) with one of its ends as well as an open position, in which it opens the sealing seat (14). The sealing and actuation element (13) forms a two-armed lever (23) whose pivot mount (22) is formed by a covering (18) which is made of elastic material, tightly surrounds the lever (23) and is clamped between two flat parts (10, 11) of the housing (10, 11).

Abstract: A gas flow valve comprises at least one gas inlet, at least one gas outlet, a flow path between said gas inlet and said gas outlet, a magnetic fluid in the valve arranged in the flow path and means for application of a magnetic field to the magnetic fluid. The magnetic fluid solidifies upon application of the magnetic field, interrupts the flow path from at least one gas inlet to at least one gas outlet gas-tight and permits gas flow when no magnetic field is applied.

Abstract: A modular electric arrangement for central power supply and control of valves in a valve block including at least one base module having a housing with tow opposed open ends, at least one connection module, and at least one termination module; the base, connection and termination modules having an identical cross-sectional configuration and being releasably connected in-line; the base module accommodating a circuit board and having a side wall with at least one opening therein for access to a connector on the circuit board; the connection module providing a central electric power supply for other modules in the arrangement; and the termination module closing an open end of an adjacent module in the arrangement.

Abstract: A modular valve for fluids comprises a valve housing (16) having a plurality of fluid ports, a spring-loaded switching rocker (18) which is adapted to be inserted into the valve housing (16), and an electromagnetic valve drive (20). Between the valve housing (16) and the electromagnetic valve drive (20) a generally magnetically non-conductive plate (30) is inserted having locally limited magnetically conductive regions (32, 34) for the electromagnetic valve drive (20) to act through on one of two limbs of the switching rocker (18), whereas the other limb is not able to be acted upon magnetically. Valve members provided at the opposite ends of the switching rocker (18) and poles (44, 46, 48) of the electromagnetic valve drive (20) are arranged symmetrically with respect to a plane containing the rocker axis (50) and perpendicular to the intermediate plate (30).

Abstract: A fragmentation plate composed of juxtaposed contacting metal bodies or fragmentation elements which is to be disposed in front of an explosive charge in an explosive grenade or other projectile, for example a sub-projectile. The metal bodies or fragmentation elements, for example, metal balls, are held, at least on the side of the plate facing the explosive, by a tray or shell, for example of sheet metal. The tray or shell may be perforated, i.e. provided with holes, for the metal bodies. Moreover, an encasing substance may be disposed between the tray and the bodies and over the outer surfaces of the metal bodies. Additionally, the fragmentation plate may have an outer covering shell or tray.