This invention concerns a fluid purification device. The device has container, a nozzle and a removable filter element. The container is preferably a bottle and has at least partially flexible sidewalls so that it is collapsible from a first, operative condition into a second, inoperative condition. The nozzle is connectable to the container and defines a first fluid flow path along which fluid flows when, in use, filling the container and a second fluid flow path along which fluid flows when, in use, dispensing fluid from the container. The removable filter element is carried by the nozzle such that it is positioned in the first fluid flow path so that the fluid is filtered when filling the container and positioned outside the second fluid flow path so that the flow of fluid is unobstructed by it when dispensing fluid from the container. The invention also concerns a method of filtering a fluid.

Provided are flexible containers for holding a concentrate, the containers comprising: a flexible body holding the concentrate, a spout, a filter element disposed in the spout, the filter element comprising a filter and an attachment element configured to attach to a water source. Also provided are methods of reconstituting concentrated products using the flexible containers.

A recovery mechanism for an elastic container. The elastic container may be deformed by external pressure and recover when the pressure is reduced or released. The recovery mechanism of the present invention, acts to allow air to enter an elastic container during the recovery stage.

Some of the present containers include a bottle defining a mouth in fluid communication with an interior volume, a cap configured to at least partially cover the mouth and defining an outlet in fluid communication with the interior volume, and a filter assembly configured to filter liquid communicated between the interior volume and the outlet, the filter assembly having a first end, a second end, and a housing extending between the first and second ends to define an interior passageway configured to contain a filter having an upper end cap defining an opening, a lower end cap, and a filter media extending between the upper and lower end caps. In some containers, the filter assembly is configured to be coupled to the cap with the opening in fluid communication with the outlet. Some containers include a straw configured to be coupled in fluid communication between the outlet and the opening.

Assemblies of a cap and a tube fixed to the cap are provided in which at least a portion of each assembly has a visual coding of color and/or indicia for use with one of different sizes of bottles at least in accordance with a height of the bottles from a closed bottom end to an open top end for engaging the cap of the assembly. In each assembly, the cap has a tube mounted to, or through, an aperture extending through the cap to extend a selected length enabling one end of the tube to reach or extend along at least a portion of an interior surface of the bottom end of any of the bottles of the height to which the assembly is coded for use therewith. Each of the caps has another tube or port to another aperture of the cap to provide an air vent.

A system and process for taking a liquid such as water from a source and supplying the liquid by, for example, pushing the liquid through a filter provided inside a reservoir in order to render the liquid clean and potable. The reservoir and filter may be surrounded 360-degrees by a pressure bladder that may be wrapped with a material such as nylon, so that substantially all pressure goes inwards towards the filter.

The invention is a single portable water bottle unit that delivers a convenient method of providing hydration to two separate parties. It consists of four main components; a lid, housing, a connector, and bowl. The components are connected to each other via threads and can be assembled and disassembled at anytime. The connector is responsible for controlling liquid flow via mechanical apparatus initiated through the compression of a button-trigger located on its side. When the button-trigger is compressed, liquid vacates through the bottom of the housing, through the connector, through a removable filter attached on the bottom of the connector, and finally into the bowl. The bowl enables a second party to consume the contents dispersed from the housing without having to consume from the same orifices as the first part, which fastens and unfastens to the bottom of the connector.

A portable, personal apparatus for transporting liquid having a bottle configured to contain liquid. The bottle has a longitudinal axis. A first opening open in a direction generally parallel with the longitudinal axis in a pour position. A first cover coupled to the bottle and configured to close the first opening in a closed position. A second opening open in a direction generally orthogonal with the longitudinal axis in a fill position. A second cover coupled to the bottle and configured to close the second opening in a storage position. The second cover remaining coupled to the bottle when the second cover is in the fill position.

A portable, personal apparatus for transporting liquid having a bottle configured to contain liquid. The bottle has a longitudinal axis. A first opening open in a direction generally parallel with the longitudinal axis in a pour position. A first cover coupled to the bottle and configured to close the first opening in a closed position. A second opening open in a direction generally orthogonal with the longitudinal axis in a fill position. A second cover coupled to the bottle and configured to close the second opening in a storage position. The second cover remaining coupled to the bottle when the second cover is in the fill position.