Abstract: An ultraviolet (UV) light disinfection system for treating water prior to its delivery to a water usage device. One or more UV light emitting diodes (LEDs) are positioned within a water system floor interface in order to expose water flowing through the system to germicidal light treatment.

Abstract: Embodiments of the present disclosure relate generally to a liquid level sensor system that allows ease of connection and disconnection of a removable vessel (such as a toilet bowl) from a stationary unit (such as a toilet frame). The system provides at least one liquid level sensor (a first part of the sensor probe connection) mounted to the removable vessel, a liquid level sensor circuit board mounted to the unit, and a connection feature (a second part of a sensor probe connection) configured to extend between the sensor and the circuit board. When the removable vessel is removed from the vessel, the sensor probe connection is disconnected without the need for manual intervention. Installation of multiple probes and varying their location can support detection of a single or several discrete levels, or provide for any required redundancy of detection.

Abstract: Disclosed are systems and methods of managing grey water or other recycled water onboard an aircraft based on demand within the aircraft. In some cases, the grey water is obtained from a lavatory or galley sink of the aircraft and is treated to purify and/or filter the grey water. The treated grey water can be routed within the aircraft according to a control scheme that accounts for demand within the aircraft. For example, some or all of the treated water may undergo electrolysis to produce oxygen gas (O2) and hydrogen gas (H2), some or all of which may be fed into the fuel cell system and used in a chemical reaction to produce electrical energy and other fuel cell by-products that can be directed to various aircraft systems and/or the aircraft cabin/lavatories.

Abstract: An ultraviolet (UV) light disinfection system for treating water prior to its delivery to a water usage device. One or more UV light emitting diodes (LEDs) are positioned within a water system floor interface in order to expose water flowing through the system to germicidal light treatment.

Abstract: Disclosed are systems and methods of managing grey water or other recycled water onboard an aircraft based on demand within the aircraft. In some cases, the grey water is obtained from a lavatory or galley sink of the aircraft and is treated to purify and/or filter the grey water. The treated grey water can be routed within the aircraft according to a control scheme that accounts for demand within the aircraft. For example, some or all of the treated water may undergo electrolysis to produce oxygen gas (O2) and hydrogen gas (H2), some or all of which may be fed into the fuel cell system and used in a chemical reaction to produce electrical energy and other fuel cell by-products that can be directed to various aircraft systems and/or the aircraft cabin/lavatories.

Abstract: Embodiments of the present disclosure relate generally to a reservoir (40) that is easily removed from a grey water flush system. The reservoir is made modular so that rather than removing an entire reservoir/pump/circuitry system, the reservoir (40) can be separately removed from the system. The reservoir can also be made disposable, which can save cleaning and refurbishment costs. This can also increase turn-around time for maintenance of the system.

Abstract: Embodiments of the present invention provide systems and methods for disposal of liquid and food into a sink basin. The disclosed system cooperates with and delivers the received waste material to the main waste system on-board the vehicle. This is typically an aircraft waste tank. The system does not require a manual flush, but includes a sensor system that activates drainage of the holding line when the liquid and/or other waste material reaches a certain level therein. The disclosed system combines the functionalities of a common galley sink and a galley waste disposal unit, but occupies only the space envelope of an existing galley sink. The use of an existing galley sink means that no additional space on the countertop is required.

Abstract: Systems and methods for treating and disinfecting water contained in a potable water tank. The systems and methods generally use one or more UV LEDs that are positioned along various portions of the water tank and that are configured to emit UV light/irradiation into the water contained therein.

Abstract: Embodiments of the present invention provide systems and methods for disposal of liquid and food into a sink basin. The disclosed system cooperates with and delivers the received waste material to the main waste system on-board the vehicle. This is typically an aircraft waste tank. The system does not require a manual flush, but includes a sensor system that activates drainage of the holding line when the liquid and/or other waste material reaches a certain level therein. The disclosed system combines the functionalities of a common galley sink and a galley waste disposal unit, but occupies only the space envelope of an existing galley sink. The use of an existing galley sink means that no additional space on the countertop is required.

Abstract: Embodiments of the present invention provide a grey water flush system for use with vacuum toilets. One embodiment of the system provides a two-stage flush that uses a transient tank in between the toilet bowl and the main aircraft waste tank, which reduces the noise level associated with the flush process because a lesser vacuum is demanded for the first stage of the flush. Embodiments of the system further capture grey water from a sink basin in a reservoir and use that water in the toilet flush process. There is further provided a lavatory odor removal system option that is activated during the second stage of the flush.

Abstract: Embodiments of the present invention provide a water management system for use on board a passenger transport vehicle. The water management system may be used to address and manage excess humidity, water leaks, or any other instance when water or other liquid may collect at a certain location. The disclosure provides a system for managing excess water and for optionally delivering the water to another location. The removal location may be a disposal outlet or it may be a beneficial use of the collected water on-board the vehicle.

Abstract: Embodiments of the present disclosure relate generally to a liquid level sensor system that allows ease of connection and disconnection of a removable vessel (such as a toilet bowl) from a stationary unit (such as a toilet frame). The system provides at least one liquid level sensor (a first part of the sensor probe connection) mounted to the removable vessel, a liquid level sensor circuit board mounted to the unit, and a connection feature (a second part of a sensor probe connection) configured to extend between the sensor and the circuit board. When the removable vessel is removed from the vessel, the sensor probe connection is disconnected without the need for manual intervention. Installation of multiple probes and varying their location can support detection of a single or several discrete levels, or provide for any required redundancy of detection.

Abstract: Embodiments of the present invention relate generally to systems and methods for preventing mineral scale deposits in an aircraft water system, and more specifically, within devices and water transport systems, such as coffeemakers and other galley equipment, as well as the water lines themselves.

Abstract: Embodiments of the present invention relate generally to multi-port 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 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 of the disclosure provide systems and methods for improved removability and ease of maintenance for one or more components of the vacuum toilet system. They can be particularly useful on-board aircraft and other passenger transport vehicles. Specific embodiments relate to a rinse valve bracket and connection system, a rinse ring tie down, and various improved connection systems.

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 present invention provide systems and methods for disposal of liquid and food into a sink basin. The disclosed system cooperates with and delivers the received waste material to the main waste system on-board the vehicle. This is typically an aircraft waste tank. The system does not require a manual flush, but includes a sensor system that activates drainage of the holding line when the liquid and/or other waste material reaches a certain level therein. The disclosed system combines the functionalities of a common galley sink and a galley waste disposal unit, but occupies only the space envelope of an existing galley sink. The use of an existing galley sink means that no additional space on the countertop is required.

Abstract: Embodiments of the present invention provide a water management system for use on board a passenger transport vehicle. The water management system may be used to address and manage excess humidity, water leaks, or any other instance when water or other liquid may collect at a certain location. The disclosure provides a system for managing excess water and for optionally delivering the water to another location. The removal location may be a disposal outlet or it may be a beneficial use of the collected water on-board the vehicle.

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.