Abstract: Embodiments of the present invention provide a filtration system that can be used to filter debris-laden water and to systems for cleaning the filtration system using a vacuum flush system to create a backwash flow through the filter of the filtration system. The filtration system described finds particular use on-board passenger transport vehicles that have a vacuum waste system, such as aircraft. The filtration system provides the ability to collect, treat, and reuse liquid resources in an environment with a vacuum waste system.

Abstract: Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve.

Abstract: Embodiments of the present invention relate generally to multi-port orbital valves for use in controlling the direction of fluids and mixed media, and find particular use in connection with toilet systems, such as vacuum toilet systems.

Abstract: Embodiments provide systems and methods for improving in-line water heaters. Certain embodiments find particular use on board aircraft, other air travel vehicles (such as helicopters or aerospace vehicles), or any other vehicles that experience varying temperatures. The in-line water heaters described are self-regulating and use a temperature dependent resistance element to detect water temperature instead of a temperature sensor.

Abstract: Embodiments relate generally to systems and methods for treating passenger transportation vehicle cabin surfaces and surrounding air. The methods may use organic LEDs to produce ultraviolet light. Systems may be provided to ensure safety and operation of the air treatment only when passengers and personnel are not present in the cabin.

Abstract: Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve.

Abstract: Embodiments of the present invention provide a water treatment device that can treat water at its point of use. For example, the water treatment device may be positioned at or near a faucet outlet, so that water can be treated immediately before it leaves the faucet. The water treatment device may be a water treatment reactor with a plurality of UV LEDs positioned between a shield and a heat sink component.

Abstract: Embodiments provide systems and methods for providing improved air flow for vacuum generator systems. The systems may include a housing with an impeller and a diverter having an airflow flange comprising an arrow-like projection configured to extend into an airflow space of the housing. The diverter may have curved surfaces that help guide airflow movement within the housing.

Abstract: Embodiments provide systems and methods for improving in-line water heaters. Certain embodiments find particular use on board aircraft, other air travel vehicles (such as helicopters or aerospace vehicles), or any other vehicles that experience varying temperatures. The in-line water heaters described are self-regulating and use a temperature dependent resistance element to detect water temperature instead of a temperature sensor.

Abstract: Embodiments of disclosure provide an intermediate accumulator that can receive and hold water prior to its delivery to a vacuum toilet or other water-using source. The pump required to move water from the reservoir to the intermediate accumulator can be much lighter and smaller than pumps previously required in systems that do not use an intermediate accumulator. Providing an intermediate accumulator can provide a more constant flush by holding the pressure inside the accumulator more constant, by equalizing the pressure, and by lowering the total volume required per flush. The accumulator can store energy in the water and deliver it to a water-using source using less energy and requiring less volume.

Abstract: Embodiments of the present disclosure relate generally to passenger transport vehicle-based lavatories. Specifically, this disclosure provides improved lavatory walls and configurations for venting and noise reduction. The walls may include a plenum forming a chamber with one or more openings, in order to help remove odors from the laboratory environment via venting.

Abstract: Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve.

Abstract: Disclosed is a fuel cell fluid purification system. The fuel cell fluid purification system can include a fuel cell system configured to receive a hydrogen input comprising hydrogen, receive an oxygen input comprising a first fluid having an initial concentration of oxygen, and convert the hydrogen input and the oxygen input so as to yield a number of outputs. The outputs can include a water output comprising water, a heat output comprising heat, an oxygen-depleted output comprising the first fluid having a concentration of oxygen lower than the initial concentration, and an electric output comprising electrical power. The fuel cell fluid purification system can also include a purification system configured to purify at least one of the oxygen input, the water output, or the oxygen-depleted output.

Abstract: Embodiments of the present invention provide a water treatment device that can treat water at its point of use. For example, the water treatment device may be positioned at or near a faucet outlet, so that water can be treated immediately before it leaves the faucet. The water treatment device may be a water treatment reactor with a plurality of UV LEDs positioned between a shield and a heat sink component.

Abstract: Embodiments of the present disclosure generally provide a grey water interface valve liquid level sensor system. The liquid level sensor system may deliver information about the water level and the water movement that occurs in a water reservoir. A control unit may then activate a valve to open so that the water can be removed via vacuum.

Abstract: Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve.

Abstract: Embodiments of the invention relate to trash compactor boxes that have an antibacterial or antimicrobial feature incorporated therein. In a general embodiment, the carton boxes have a built-in compound, such as an antimicrobial, antiseptic, and/or a biocide material.

Abstract: Embodiments of the present invention provide systems and methods for point of use location treatment of potable water supplies on demand on board passenger vehicles, such as aircraft. The systems described generally provide increased safety features, alternate ultraviolet light sources, and reduced power consumption.

Abstract: Embodiments of the present invention provide a filtration system that can be used to filter debris-laden water and to systems for cleaning the filtration system using a vacuum flush system to create a backwash flow through the filter of the filtration system. The filtration system described finds particular use on-board passenger transport vehicles that have a vacuum waste system, such as aircraft. The filtration system provides the ability to collect, treat, and reuse liquid resources in an environment with a vacuum waste system.

Abstract: Embodiments of the present invention relate generally to multi-port orbital valves for use in controlling the direction of fluids and mixed media, and find particular use in connection with toilet systems, such as vacuum toilet systems.