Abstract: An elevator hydraulic tank is provided with shaped sides which increase the rigidity and heat dissipating ability of the tank. The shaped sides of the tank may be corrugated. A hydraulic machine is mounted on the underside of the tank lid so that maintenance of the machine does not require draining of the tank. The shaped sides are enclosed by an outer shell which further minimizes noise emanating from the tank.

Abstract: A reaction canister for a vehicle passive restraint system has its side walls weakened in the regions adjoining edges which are adjacent automotive panels likely to be impacted by occupants in the event of a low speed collision. The resultant softening serves to prevent injury.

Abstract: A corrugated cardboard structure for use in wrapping of goods during shipment. A core cardboard of wave shape is glued to at least one cardboard surface sheet at crests of the waves of the core cardboard, with at least one non-glued portion of the cardboard surface sheet adjacent to one of the crests being between two glued portions. The corrugated cardboard structure of the invention can be formed into an open-ended hollow tubular configuration for placement around goods during shipment of the goods. Alternatively, the cardboard structure can be formed into a rectangular box for containment of goods during shipment or storage of the goods.

Abstract: An improved light weight liquid-containing stackable bottle made of plastic such as polycarbonate. The bottle is preferably of rectangular cross-section with parallel oppositely disposed mating sides which permits secure and space-saving stacking of the bottles. Complementary projections and receptacles are formed in the mating sides of the bottle to permit interlocking of the bottles when they are stacked. Desirably, vertical and horizontal corrugation are formed in the sides of the bottle to provide strength and reinforcement against both sideways and axial forces. The non-parallel corrugations preferably do not intersect to avoid the creation of stress points which could lead to cracking and flaws in the bottles. Horizontal corrugations are remote from the bottom and shoulder parts of the bottle in order to improve impact resistance.