An embodiment includes a walking stick. The walking stick includes a rod assembly, a water purification assembly, and a manual pump. The rod assembly extends from a first end to a second end that is opposite the first end along a longitudinal direction of the rod assembly. The rod assembly includes at least one rod portion. The water purification assembly is integrated with the rod assembly. The manual pump is configured to impose a pressure gradient in the water purification assembly. The manual pump includes a plunger that is physically coupled to a handle portion. Motion of the plunger relative to the water purification assembly draws water into an inlet tube that is positioned in the rod portion and through the water purification assembly. The motion of the plunger results from translation of the handle portion in substantially the longitudinal direction of the rod assembly.

Illustrative configurations of a pet hydration system and methods are disclosed. The pet hydration system includes a bowl section configured to temporarily store water therein. In one configuration, a hydrogen-generation assembly is positioned in the bowl section. The hydrogen-generation assembly generates and introduces hydrogen into the water temporarily stored in the bowl section. In other configurations, methods related to pet hydration are also disclosed.

A portable, multi-step apparatus and method for producing potable water in remote locations.

A ruggedized portable water treatment system having a protective exoskeleton that supports and enshrouds the principle operating components of the water treatment system. In one embodiment, the water treatment system includes a water pump and one or more water treatment components that are disposed within the protective confines of the exoskeleton. In one embodiment, the exoskeleton includes top and bottom plates that are joined by a central support and a plurality of external supports. The principle operating components of the water treatment system, such as the water pump and the water treatment components, are mounted to the central support and are fully contained within and protected by the external supports. The external supports are disposed outwardly of the water pump and the water treatment components to form a rigid cage configured to protect the internally positioned components.

A fluid transport assembly includes a substantially cylindrical shell having a first closed end and a second closed end and a tube extending from the first closed end to the second closed end. The tube is substantially aligned with an axis of the shell and provides a passage through the shell. The fluid transport assembly also includes a series of concentric cylindrical filters positioned in the cylindrical shell and extending from the first closed end to the second closed end. The series of concentric cylindrical filters defines an input compartment between the filters and the tube and an output compartment between the filters and the cylindrical shell. The series of concentric filters is structured to remove contaminants from a fluid as the fluid flows through the series of concentric filters from the input compartment to the output compartment.

A portable water filtration apparatus has a top panel, a mounting surface, an electric pump mounted to the mounting surface, at least one filter, and at least one filter housing coupled to the top panel, with the at least one filter filtering water from the pump. The portable filtration apparatus has a housing, such as a bucket, to fully contain the components and which may be used for collecting either filtered or unfiltered water.

Illustrative configurations of a pet hydration system and methods are disclosed. The pet hydration system includes a bowl section configured to temporarily store water therein. In one configuration, a hydrogen-generation assembly is positioned in the bowl section. The hydrogen-generation assembly generates and introduces hydrogen into the water temporarily stored in the bowl section. In other configurations, methods related to pet hydration are also disclosed.

A water sanitization cap for covering a bottle includes a barrel, a shell, and a waterproof compartment. The shell surrounds at least a portion of the barrel and includes an outer surface and an inner surface. The waterproof compartment is formed within the interior of the barrel. The waterproof compartment includes one wall formed at least in part from a transparent material, one or more light emitting diodes (“LEDS”), a sensor, and a filter cage. The LEDS are fixed within the waterproof compartment and oriented to shine light through the transparent material. The sensor includes an activation button. The sensor is configured to sense when the cap is in the installed position and supplies voltage to the activation button. The activation button is activated by a user in the installed position to supply voltage to the LEDS to emit light. The filter cage is operable to contain a filter.

A filtering container for liquids, in particular water. The filtering container includes a main body, a gripping portion which is configured to be gripped by a user for lifting the container and pouring out the liquid contained therein, a closure for an opening which is defined in the main body which includes a filtering element which is arranged in a position to intercept the liquid being discharged from the main body, a dispenser for the liquid which is configured in such a way that the liquid is dispensed through a dispensing zone for the liquid which is defined adjacent to a side wall of the main body and a ventilation pipe which opens inside the main body in a ventilation zone and extends in the form of an elongate element towards the interior of the main body.

An on-demand filter structure including a first hydrophilic protective layer comprising a first surface exposable to a stream of water. A contact area on the first surface receives the stream. The first hydrophilic protective layer receives the stream and distributes water out a second surface, primarily using gravity. An activated carbon felt (ACF) layer is adjacent to the second surface, wherein the ACF layer is configured for water filtration, primarily using gravity. A second hydrophilic protective layer includes a third surface adjacent the ACF layer and a fourth surface. The third surface receives filtered water from the ACF layer, and the fourth surface expels the filtered water primarily using gravity, wherein the first and second hydrophilic protective layers sandwich the ACF layer. A cross section of the first hydrophilic protective layer, the ACF layer, and the second hydrophilic protective layer has a curvature.