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 described herein relate to quick release toilet concepts, which can be useful particularly on-board aircraft and other passenger transport vehicles. Further embodiments relate to improved shroud components for toilets that help reduce splash. Further embodiments also relate to flushing systems for use with vacuum toilets.

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 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 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 provide double deep, single width ovens for use in aircraft galleys. The ovens are particularly beneficial as they do not change current catering process or equipment, leading to their ease of acceptability and use in the airline galley design and development industry. The ovens may be used with two standard 32-meal carriers, such that the carriers are positioned front to back in the oven. Alternatively, 64-meal carriers may be developed that fit into the double deep oven as well.

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 present invention provide composite waste and water transport elements that can be designed having various unique shapes and methods for their manufacture.

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 a flow control unit for controlling liquid flow in a vacuum waste system. In one embodiment, the flow control unit provides a series of valves that direct liquid flow. The unit may also have an intermediate transfer tube that holds a portion of the liquid to be directed, prior to delivery of the liquid to left and right transfer tubes. In one embodiment, the unit may be installed on board a passenger transport vehicle. A particularly beneficial use of the flow control unit is on a private aircraft for use as a shower control unit.

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 of the present invention relate generally to on-aircraft potable water disinfection with UV LED light sources that are positioned in-line with the water delivery system. Further embodiments relate to using the scavenged heat generated by the LEDs to deliver heat back to the water supply tube for temperature stabilization and to prevent water freezing.

Abstract: Embodiments described herein relate to quick release toilet concepts, which can be useful particularly on-board aircraft and other passenger transport vehicles. Further specific embodiments relate to a quick release rinse valve, a quick release flush valve, an integrated rinse ring, a replaceable toilet bowl, an integrated anti-siphon/rinse valve, and improved flush valve performance.