Abstract: An impact absorbing construction for a motor vehicle comprises an impact damping cylinder. One end of said impact damping cylinder is adapted for being fastened to a vehicle structure. The other end of the impact damping cylinder is connectable with a bumper. The bumper is adjustable with respect to the impact damping cylinder. In order to allow both a horizontal and a vertical adjustment, a sleeve is provided having a sleeve axis which is perpendicular to the cylinder axis. A core is received by the sleeve. The core is adjustable along the sleeve axis by screwing. The bumper is fixable to the core. A sleeve support is fastened to the sleeve. The sleeve support is connectable with the other end of the damping cylinder and is adjustable with respect to the damping cylinder along the cylinder axis.

Abstract: A hydropneumatic shock absorber for use between a bumper and the chassis of a motor vehicle has a cylinder and a plunger guided in the cylinder by the radially enlarged inner end portion of the plunger and by an annular sealing assembly which axially bound a gap radially defined by respective walls of the cylinder and plunger. The sealing assembly includes a rigid guide ring axially secured on the plunger, a resilient sealing ring, and a backing ring of intermediate hardness axially interposed between the guide ring and the sealing ring. The hollow interior of the plunger is partly filled with a compressed gas and partly by liquid which also occupies the cylinder chamber outwardly closed by the plunger, a throttling passage in a closing disc which is an end wall of the plunger, and the remainder of the hollow plunger interior, the liquid being separated from the compressed gas by a floating partition in the plunger.

Abstract: An intracardial stimulation electrode for a heart pacemaker with a hollow insulating sleeve open at the rear, a metallic conductor head mounted at the front of the sleeve, a flexible hose attached in water tight relation to the head and extending through the sleeve, a wire conductor attached to the head and extending within the hose, a slide assembly mounted within the sleeve and about the hose for movement toward and away from the head to advance bristles which lock the electrode into heart tissue, out of and into the sleeve and structure at the rear of the sleeve for preventing withdrawal of the assembly.