Abstract: A medical system for treatment with focussed acoustic waves having a locating device, a therapy device, a patient positioning device, power supply devices for these devices. The complete system is installed in an integrated manner and adjusted on a common equipment carrier. The carrier frame corresponds in width and length to the projected floor area of a standard hospital bed so that the complete system can be easily transported in its mounted and adjusted state.

Abstract: A pressurized or hydraulic clamp, with piston reset, for securing tools or workpieces, such as grinding wheels, milling tools, and the like, to a shaft. By pressurizing with a hydraulic fluid, a floating piston is pressed out of the clamping unit to hold the workpieces or tools against a support. In order to retract the piston when the hydraulic pressure is released, the circular piston is provided with a bead on its outside or inside, depending upon the application; the bead is connected to one or more springs. The springs, which are pre-tensioned in the starting position, and are further tensioned when the piston is driven out, automatically reset the piston when the pressure is released.

Abstract: The invention relates to a hydraulic clamping means, in particular, a clamping nut, for mutual axial clamping of two workpiece sections or machine parts, in particular, a collet and a chuck, comprising an annular housing engaging one workpiece section or machine part, at least one pressure chamber arranged in the housing and filled with hydraulic medium, a pressure screw screwable into this chamber, and an annular pressure area provided in the housing and connected to the pressure chamber, with an annular piston engaging the other workpiece section or machine part axially displaceable in the annular pressure area.