Abstract: A self-pumping hydropneumatic spring strut with internal leveling for motor vehicles includes a working cylinder filled with damping medium. The working cylinder is under the pressure of at least one gas cushion arranged in a high-pressure chamber and acting as a spring. A piston divides the working cylinder into two working spaces and is connected to a hollow piston rod. Valves are arranged on the piston so that the two working spaces are in communiction through the valves. A piston pump is driven by the spring movements and pumps oil out of a low-pressure chamber into the working space connected to the high-pressure chamber and comprises a pump space formed by the hollow piston rod, a pump rod connected to the working cylinder. A further pressure generator acts upon the damping medium in the high-pressure chamber and/or the working space connected to the high-pressure space.

Abstract: A cognitive intelligent carrying case includes an outer shell layer and a plurality of internal layers defining corresponding interior compartments for storing a variety of specific types of items. The outer shell layer includes access type security systems for authenticating the identity of an individual attempting to access the contents of the case. Each of the internal layers includes one or more security systems operable to destroy the specific items contained in the corresponding compartment. In addition, the case includes communication systems that enable communication with authorized users and/or an owner of the case and which enable the locating of the case when such location information is required. When unauthorized access attempts to the case are detected, the location of the case is determined through an onboard GPS system and the owner of the case is contacted.