Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.

Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.

Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one valve main stage, which is situated hydraulically between the accumulator-side port and the system-side port and to which a pressure prevailing hydraulically at the accumulator-side port is preferably applied by an application means in the opening direction, the valve device also including an electrically actuated control valve which may connect the system-side port to a control port of the valve main stage which acts in the closing direction of the valve main stage and to the accumulator-side port, at least one first throttle being situated between the control valve and the accumulator-side port.

Abstract: To enable the use of long lasting filters in a sterilizing container having a broken through area which is covered by a flat filter layer, without any structural alteration thereto, it is proposed that the filter layer consist of polytetrafluoroethylene (PTFE) and be built up of compact particles fused together and forming pores between them.

Abstract: In order to facilitate the detection of any unauthorized opening of a sterilization container for surgical instruments or the like having a lower section, a cover sealingly placeable thereon, a locking member securing the cover in position on the lower section and pivotable between a closed position and an open position, and a card-like securing element which can be secured in position on the container and moves into the path of travel of the locking member near to the closed position of the locking member, it is suggested that the part of the securing element moving into the path of travel of the locking member be elastically bendable out of the plane of the securing element and move into the path of travel of the locking member only to such a depth that it slides back behind the locking member when the locking member is pivoted into the open position and during closing of the locking member is taken along with it and is covered by the locking member in the closed position thereof.