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 UV sterilization cup includes a cup body with a first opening thereof, a cup shielding covered on the first opening, a filter matched with the first opening, a UV sterilization member received in the cup shielding for sterilizing water and a waterproof transparent member received in the cup shielding for sealing the UV sterilization member. The UV sterilization member includes a UV PCB and a UV light source connected to the UV PCB. The UV PCB includes a UV generating circuit formed thereon to drive the UV light source to emit ultraviolet ray so as to sterilize water received in the cup body. The compact structure can achieve a reliable sterilization effect with 99.9% by setting the UV light source, and water fetched in outdoors can reach the standard of healthy drinking water that it is first filtered by the filter and then sterilized by the UV light source.

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.

A tool adapted for use with a diffuser cartridge and a fluid container, wherein the tool is adapted to facilitate insertion and removal of the diffuser cartridge to and from the fluid container. The diffuser cartridge contains mineral agent beads or other materials which can enhance the quality of fluid contained within the container.

The present invention relates to a water-purifying lid having a self-powered UV LED and a filter coupled thereto, the lid comprising: a first body having a box shape and open at one end thereof; a support plate installed in an inner space of the first body to form a space; a rotational part; a coil part; a handle coupled to one end of a rotational shaft at one end thereof so as to rotate the rotational shaft when a force is applied thereto; an ultraviolet sterilization device; a second body; a filter for removing impurities; and a discharge part comprising a valve, wherein a user rotates the rotational shaft and a rotational plate by using the handle, a magnet moves above the coil part with the rotation of the rotational plate to generate electricity at the coil part, and the electricity having been generated at the coil part is transferred to a UV LED of the sterilization device, thereby emitting an ultraviolet ray which sterilizes water in the second body.

A method of filtering water contained in a squeezable bottle includes filling the squeezable water bottle with water; screwing a portable filtration apparatus onto the squeezable water bottle, the portable filtration apparatus includes a cap piece, the cap piece having a mouthpiece and a threaded portion, wherein the threaded portion is configured to screw onto the squeezable bottle; and a filter fluidly connected to the cap piece, wherein the filter comprises a plurality of hydrophilic hollow fibers and hydrophobic hollow fibers, the hydrophobic fibers are configured to allow air to flow into the squeezable bottle; flowing a filtrate out through the mouthpiece from the filter in response to a pressure differential between an inside portion of the squeezable bottle and an outside portion of the squeezable bottle.

A storage container includes an input portion for receiving and filtering a source liquid to form an output liquid, a storage portion for storing the filtered liquid, and a base portion disposed below the storage portion including a UV light source for providing transmitted UV light to the filtered liquid, a UV light detector disposed an optical path length away from the UV light source for detecting received UV light through the filtered liquid in response to the transmitted UV light, a processor for determining an absorption or a transmission percentage in response to the transmitted UV light and the received UV light, for determining a safe condition, in response to the absorption or the transmission percentage respectively not exceeding or exceeding predetermined criteria, and one or more indicators for indicating that the liquid is safe for consumption to a user, in response to the safe condition.

A filter housing can be configured to receive a filter media to form a filter assembly. Water filter media assemblies can be adapted for filter-as-you-pour filtration in the context of container (e.g., pitcher) systems where filtering is achieved as the user pours water from the container. The filter housing can have a frame and an optional casing securable about the frame. The filter assembly can include a filter media within, connected to, or associated with a filter housing. The filter media can be securable in an at least partially curved configuration and/or within, connected to, or associated with the filter housing.

A liquid treatment device includes a base with a power source, a UV-LED module for providing UV-B or UV-C light to liquid, an LED for providing visible light, and a processor for selectively powering the UV-LED module and the LED, and having a UV transmissive material above the UV-LED module for allowing the UV-B or UV-C band light from the UV-LED module to be transmitted from the base housing, and a liquid storage housing removably coupled to the base housing with a storage portion configured to hold liquid and having a bottom portion comprising a UV transmissive material for allowing the UV-B or UV-C band light from the UV-LED module to be transmitted into the liquid, and an output coupled for restricting outflow of the liquid from the storage portion.

A purifying device including a container, at least one cover, a sensing assembly and an ultraviolet source is provided. The container has a containing space, wherein the containing space is adapted to contain a liquid. The cover is adapted to be connected to the container to cover the containing space. The sensing assembly is disposed on the cover, wherein the sensing assembly is adapted to sense a usage state of the cover. The ultraviolet source is disposed on the cover and is adapted to generate an ultraviolet emitted to outside of the cover, wherein the ultraviolet source is turned on or turned off according the usage state of the cover.