Abstract: A cap structure may include a base and a cap, where the base may include a periphery configured to be mounted over a rim of an opening of a container. The base may include a hollow neck, extending from the base for facilitating flow of liquid from the container through and out of the neck. The neck may include a flange extending annularly around the neck, so as to define an annular step. The cap may include a plurality of inwardly protruding projections, configured to snap over the step when the cap is mounted over the neck.

Abstract: A cap structure may include a base and a cap, where the base may include a periphery configured to be mounted over a rim of an opening of a container. The base may include a hollow neck, extending from the base for facilitating flow of liquid from the container through and out of the neck. The neck may include a flange extending annularly around the neck, so as to define an annular step. The cap may include a plurality of inwardly protruding projections, configured to snap over the step when the cap is mounted over the neck.

Abstract: A load carrier device for enabling a user to carry a load includes a belt for fastening about a waist of the user and an element of substantial vertical rigidity configured to exert a lifting force on the load when the load is attached to shoulder straps on shoulders of the user. The device further includes an adjustable elastic connection attached to the belt for supporting a lower end of the element of substantial vertical rigidity such that adjusting the adjustable elastic connection changes a distribution of a weight of the load between the shoulders and the waist of the user.

Abstract: A squeezable bottle is disclosed. The squeezable bottle includes a pliable bottle skin, an outlet and a spinal assembly within the pliable skin, for providing longitudinal rigidity along an elongated axis of the bottle.

Abstract: A universal adapter device facilitates transfer of liquid from a neck of a liquid dispenser to a receiving container. The device includes a hollow body. The hollow body includes a flexible liquid inlet with an inwardly sloping flexible collar, a liquid outlet, and a one-way valve for allowing air into the hollow body when a pressure within the hollow body is less than ambient pressure.

Abstract: Sealing device for flexible liquid container is disclosed. In one preferred embodiment of the invention, the sealing device comprises an elongated member with a hollow passage extending through it with a longitudinal slot, slidingly mountable over a rod, which is provided over a lateral opening of a flexible liquid container. In another preferred embodiment of the present invention the rod is attached to the member extending through the passage. When the portion of the container provided with the lateral opening is folded over the rod, substantially overlapping an adjacent portion of the container and the sealer is slidingly mounted over the folded portion of the container, liquid is prevented from leaking out of the container through the lateral opening.

Abstract: A mouthpiece for a hydration system designed for drinking liquids from that system. The mouthpiece comprises a body having an internal conduit passing through it, the internal conduit having a broad portion provided with a broad opening and a narrow portion provided with a narrow opening, a piston member having a distal portion and a proximal portion, the piston member provided with a passageway passing through it, the passageway having a first opening at the proximal portion and a second opening between the proximal portion and the distal portion. At least a portion of the piston member is inserted in the conduit fitting inside the broad portion while the distal portion of the piston member is adapted to fit inside the narrow portion. The piston member is adapted to coaxially move within the body. The mouthpiece further provided with an O-ring closely encircling the distal portion of the piston member.