Abstract: A locking-ring closure for fastening lids on containers has: at least one screw lock and further has an open locking ring (1) having a U- or V-shaped cross section, bearing blocks (3) and (4) arranged at the ends of the locking ring, one of which bearing blocks has a through-passage hole and the other an internal thread, a screw (2) which extends through the through-passage hole in the one bearing block (3) and engages by way of its thread in the internal thread of the other bearing block (4), wherein the screw extends beyond the width of this bearing block and, on the portion that emerges from the bearing block, carries a fixed threaded ring (5) enclosing said portion. The screw (2) has, at its end opposite the screw head (6), a portion (8) adjacent to the threaded ring and arranged on that side of the threaded ring (5) that faces the screw head, which portion (8) has no thread engaging in the internal thread of the bearing block (4) and extends at least over the width of the bearing block.

Abstract: Described is a locking-ring closure for fastening lids on containers, having at least one screw lock and comprising an open locking ring (1) having a U- or V-shaped cross section, bearing blocks (3) and (4) arranged at the ends of the locking ring, one of which bearing blocks has a through-passage hole and the other an internal thread, a screw (2) which extends through the through-passage hole in the one bearing block (3) and engages by way of its thread in the internal thread of the other bearing block (4), wherein the screw extends beyond the width of this bearing block and, on the portion that emerges from the bearing block, carries a fixed threaded ring (5) enclosing said portion. The screw (2) has, at its end opposite the screw head (6), a portion (8) adjacent to the threaded ring and arranged on that side of the threaded ring (5) that faces the screw head, which portion (8) has no thread engaging in the internal thread of the bearing block (4) and extends at least over the width of the bearing block.

Abstract: A water harvesting apparatus includes a condenser system and an absorption refrigerator connected to the condenser system. The condenser system has a condenser for condensing water from ambient air. The absorption refrigerator cools the condenser, and derives its heat from waste heat. A method of harvesting water from the air includes the steps of introducing ambient air to a condenser system which has a condenser for condensing water from air, supplying waste heat to an absorption refrigerator to cool a refrigerant, transferring the cooled refrigerant to the condenser to the cool the condenser, and condensing water from ambient air.

Abstract: A method of disinfecting water is provided including treating water by irradiating the water with ultraviolet light and introducing silver ions to the water. The water may be treated by either initially irradiating the water with ultraviolet light followed by introducing silver ions to the water or by introducing silver ions to the water and thereafter exposing the silver ion-containing water to ultraviolet light.