Abstract: A drinking or domestic water system has a conduit system with a connection to a public water supply system, at least one riser conduit with at least one floor-by-floor conduit branching therefrom and at least one circular conduit branched in the flow direction of the water from the floor-by-floor conduit, at least one consumer connected in the circular conduit, and a return conduit into which the floor-by-floor conduit enters, by means of which it can be secured, avoiding high water consumption and thus operating costs, so that the water in the system meets hygienic conditions. The conduit system composed of supply conduit or riser conduit and return conduit forms a closed circulation conduit in which unit for cooling the water flowing through is integrated so that the drinking or domestic water can be cooled to a predetermined temperature.

Abstract: A submunition unit provided with a rotary parachute (3) as the sole parachute. The parachute, after release, initially is unable to be fully deployed due to reef loops (16) provided on the rigging lines (15) and held by a releasable holding device arrangement (4, 5, 6) and therefore acts as a deceleration and stabilization parachute at high flight velocities. The reef loops (16) are released after a predetermined period of time to permit the rigging lines (15) to fully extend and parachute (3) to become fully deployed or opened.

Abstract: The parachute having a canopy composed of a plurality of radially arranged asymmetrical polygonal panels of the same shape, with, each panel being sewn only partially to its adjacent panel so that, in the fully deployed state, a plurality of air exit nozzles are formed in the carrying zone section of the parachute in the unsewn regions with the nozzles all acting in the same circumferential direction. The effect of each air exit nozzle is improved and stabilized with respect to guiding the flow of air in the tangential direction in that a trapezoidal area is attached to the edge or side of each panel in the unsewn region so as to overlap the adjacent panel. In addition, each panel is preferably provided with a horizontal or concentrically extending stabilization slit which is disposed in the transition region between the carrying zone section and the guide zone section of the canopy.