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 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 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 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: Embodiments of the present invention provide systems and methods for disinfection of aircraft galleys and lavatories and other surfaces. The embodiments may use UV light sources and/or a disinfection unit powered by a fuel cell or other external power source.

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 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 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 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 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 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 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 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 system to direct water flow through a lavatory and to cleanse grey water through a series of treatment steps. The water may then be re-directed to the faucet for re-use in hand washing or other potable water use or to the toilet for flush water. The treatment steps are altered, depending upon the ultimate use of the water, as flush water need not be treated to the same level as potable water. The system may also function via a cascade of logic commands given by a series of electronic controllers, valves, and sensors which are fine-tuned to supply enough water to each component of the 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 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.