A water treatment system is provided with an untreated water reservoir having a cavity through which a filter assembly may traverse such that untreated water in the cavity passes through the filter assembly into a treated water reservoir. Traversal of the filter assembly may be facilitated by a pressure control assembly configured to generate a vacuum.

A plurality of caps are provided each with a visual coding of color and/or indicia for use with 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 each of the caps. Each of the caps has a tube mounted to, or through, an aperture extending through a top closed end of the cap to extend a selected length enabling one end of the tube to reach or extend along an interior surface of the bottom end of any of the bottles of the height to which the cap is coded for use therewith. The other end of tube is extendable to a bioreactor container. Each of the caps has another tube or port to another aperture of the cap to provide an air vent with an optional air filtering device.

The present disclosure provides a service life reminding system for a water bottle filter element. The service life reminding system for the water bottle filter element includes a one-way valve head, a mounting bracket, and a circuit board. The mounting bracket includes a first accommodating cavity. A portion of the one-way valve head is movably accommodated in the first accommodating cavity. A magnetic element is fixed in the mounting bracket. A magnetic sensor is arranged on the circuit board. Both of the circuit board and the magnetic sensor are accommodated in the one-way valve head. When the one-way valve head slides to abut against the mounting bracket, the magnetic sensor senses the magnetic element. When the one-way valve head slides away from the mounting bracket until the one-way valve head separates from the mounting bracket, the magnetic sensor is unable to sense the magnetic element.

The invention relates to an indicator (1) for management of a filter cartridge (10) for a filtering bottle (7), the bottle (7) comprising a container (8) with a neck (9), a filter cartridge (10) and a cap (11) with a coat (13). The indicator (1) according to the invention is characterized in that it comprises a first ring, a second ring arranged coaxially on the first ring, wherein the first and the second rings are rotatable relative to each other, wherein one of the rings comprises markings relating to the filter cartridge arranged around said ring and defining a time unit, and wherein the other ring comprises an indicating element for indicating a selected marking relating to the filter cartridge by rotating one of the rings relative to the other. The indicator (1) for management of the filter cartridge (10) is also adapted to be mounted around the neck (9) of the container (8) of the filtering bottle (7) under the coat (13) of the cap (11). Furthermore, the invention relates to a filtering bottle (7) and such an indicator (1) for management of a filter cartridge (10). The invention relates also to a set of a filtering bottle (7) and such an indicator (1) for management of a filter cartridge (10).

A water sanitization cap for covering a bottle is provided. The cap may screw-fit on a conventional water bottle. The conventional water bottle may store drinking water. The cap may include a UV-C module. When activated, the UV-C module may destroy bacteria and/or viruses within the water. The cap may also include a cartridge. The cartridge may be a filter cartridge, pH modifying cartridge and/or a flavor-enhancing cartridge. The cartridge may filter out particulate matter, modify the pH and/or enhance the flavor of the water when water is being suctioned out of the bottle. The water may be suctioned out of the bottle using a foldaway straw included in the cap.

A water bottle includes a spout including an externally threaded neck, two opposite first lugs at two sides of the externally threaded neck respectively, each first lug including a first hole, and an internally threaded cap secured to the externally threaded neck; a container including a body, two opposite second lugs at two sides of the body respectively, each second lug including a second hole, a hollow handle having two ends communicating with contents in the body, and a channel disposed between the handle and an intermediate portion of the body; and a strap including two rings at two ends respectively. The rings are hung on the first hole and the second hole of the same side of the body respectively or hung on the first holes respectively.

A plurality of caps are provided each with a visual coding of color and/or indicia for use with 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 each of the caps. Each of the caps has a tube mounted to, or through, an aperture extending through a top closed end of the cap to extend a selected length enabling one end of the tube to reach or extend along an interior surface of the bottom end of any of the bottles of the height to which the cap is coded for use therewith. The other end of tube is extendable to a bioreactor container. Each of the caps has another tube or port to another aperture of the cap to provide an air vent with an optional air filtering device.

A method of forming a hybrid, hand-held drinking bottle includes connecting a top element to a bottom element to form a seam therebetween. The top element includes a top wall extending around a top axis, and a top opening extending within the top element between opposed ends of the top wall. The top element is formed from a material that is of a first hardness. The bottom element comprises an end wall, a bottom wall extending around a bottom axis, and a bottom opening extending between the end wall and an opposing end of the bottom wall. The bottom element is formed from a material that is of a second hardness less than the first hardness. The top opening is in communication with the bottom opening when the top element is connected to the bottom element. The method further includes over molding a collar around the seam.

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.

A method of forming a hybrid, hand-held drinking bottle includes connecting a top element to a bottom element to form a seam therebetween. The top element includes a top wall extending around a top axis, and a top opening extending within the top element between opposed ends of the top wall. The top element is formed from a material that is of a first hardness. The bottom element comprises an end wall, a bottom wall extending around a bottom axis, and a bottom opening extending between the end wall and an opposing end of the bottom wall. The bottom element is formed from a material that is of a second hardness less than the first hardness. The top opening is in communication with the bottom opening when the top element is connected to the bottom element. The method further includes over molding a collar around the seam.