Abstract: Disclosed herein is an aircraft water supply system. The water supply system comprises a water tank for storing potable water; and two or more faucets that are each connected to the water tank and configured to dispense the potable water on demand in response to a user actuating the faucet. Each of the two or more faucets includes a respective filtering unit. In embodiments the filtering units are integrated within the faucets and comprise three stages of filtering, namely (i) a coarse filtering stage; (ii) a first filtering stage comprising a hollow fiber filter and/or one or more ion exchange resin filters; and (iii) a second filtering stage comprising activated carbon.

Abstract: A lavatory system includes a toilet having a front end, a back end, a top end, and a bottom end, and a tube having a first end coupled to the toilet toward the top end and a second end extending above the top end. The toilet includes a toilet bowl defined by the front end, the back end, the top end, and the bottom end, and a toilet seat coupled to the toilet bowl on the top end.

Abstract: A locking assembly of a lavatory door in an aircraft, comprising: a locking mechanism; and an occupancy indicator. The occupancy indicator is configured with a display that enables viewing of a status of the lavatory of availability or is occupancy. The position of the locking mechanism and occupancy indicator has been changed from a higher location on the lavatory door that approximates a line-of-sight from a standing position at the lavatory door to a lower location that approximates the line-of-sight from a seated position at the lavatory door. The display of the occupancy indicator is configured with a plurality of display angles to display the status comprising at least a first display angle to allow viewing from the line-of-sight in the standing position and at a second display angle to allow viewing from the line-of-sight in a seated lower position at the lavatory door.

Abstract: A boarding system and a computer-implemented method for boarding a plurality of passengers onto an aircraft, the aircraft having a plurality of seats and each passenger having an assigned seat from amongst the plurality of seats. The boarding system comprises a passenger monitoring system comprising a plurality of monitoring devices, the monitoring devices being configured to determine an occupancy of each of the plurality of seats and/or to determine an occupancy of one or more aisle or boarding tunnel; and a scheduling system configured to control a boarding schedule, the boarding schedule assigning each seat to one of a plurality of groups of seats, and comprising a pre-determined boarding sequence for the plurality of groups of seats.

Abstract: A floor covering for an aircraft interior including a substrate and a plurality of UV lights distributed across the surface of the substrate. The floor covering further includes at least one sensor configured to detect the presence of an object on the substrate. At least one of the plurality of UV lights emits UV radiation when the at least one sensor detects the presence of an object on the substrate. The UV lights may be configured to act as a germicide, and the object may be a foot or footwear. Therefore, the floor covering may be provided as a safety measure for an aircraft.

Abstract: Disclosed are embodiments of monuments for installation in an aircraft passenger cabin. Each monument is multi-use in that the monument serves to accommodate a wheelchair and provide at least one additional function. In embodiments, the monument includes an interior space dedicated for receiving and positioning a wheelchair in an unfolded state, for instance an occupied wheelchair during taxi-takeoff, and landing (TTOL) and during flight. In embodiments, the monuments include storage compartments, direct access to an exterior window, tray table assemblies, etc. In embodiments, the monuments are configured to be positioned adjacent to at least one aisle for accessibility, and to a seat row including a passenger seat reserved for a caregiver. The monuments disclosed herein enhance the travel experience for a passenger with reduced mobilities (PRM), as well as increase flexibility in cabin designs.

Abstract: A user interface display may have a display and may have a backlight that lights the display. The display may implement pixels to generate colors and images. The display may be backlit. The backlight may use pixels having emitters to generate different color backlighting. In various instances, the display or the backlight or both may include a deep blue emitter. The blue emitter may be used in combination with red and green pixels elements to generate different colors. By implementing deep blue emitters rather than conventional blue (e.g., cyan) emitters, the effects of cyan light on a viewer's circadian rhythm may be limited or eliminated. Moreover, by implementing deep blue emitters, the effects of cyan light on a viewer's circadian rhythm may be varied, while the colors and images are reproduced for viewing without introducing significant color distortion.

Abstract: A trolley assembly includes a trolley housing defining an internal cavity. The assembly includes at least one ultra-violet (UV) illumination system contained within the internal cavity in a stowed position. The UV illumination system configured and adapted to extend outward from the internal cavity in a deployed position. The trolley assembly includes a battery in electrical communication with the at least one UV illumination system.

Abstract: A lavatory door including an ashtray is disclosed herein. The lavatory door includes a door panel having a first side and an opposing second side and the ashtray disposed within the door panel. The ashtray includes a first outer panel disposed along the first side of the door panel and configured to move away from the door panel, a second outer panel, opposite the first outer panel, disposed along the second side of the door panel and configured to move away from the door panel, and a bottom surface extending from the first outer panel to the second outer panel.

Abstract: A system may include an adjustable headrest assembly. The adjustable headrest assembly may include a headrest center bracket, a left vertical side plate track, a left headrest side plate assembly including a left headrest side plate, a right vertical side plate track, and a right headrest side plate assembly including a right headrest side plate. The left headrest side plate may be configured to move up and down relative to the left vertical side plate track based on the engagement of the left headrest side plate assembly with the left vertical side plate track. The right headrest side plate may be configured to move up and down relative to the right vertical side plate track based on the engagement of the right headrest side plate assembly with the right vertical side plate track.

Abstract: An aircraft cabin partition system may include at least a first partition with a partition cut-out and a first flange with a first flange cut-out. The aircraft cabin partition system may include a first coupling assembly configured to be inserted within the first flange cut-out, configured to be inserted within an opening of a seat rail within a floor of an aircraft cabin, and configured to couple the at least the first partition to the seat rail when engaged. The aircraft cabin partition system may include at least a second partition with a second flange with a second flange cut-out. The aircraft cabin partition system may include a second coupling assembly configured to be inserted within the partition cut-out, configured to be inserted within the second flange cut-out, and configured to couple the at least the second partition to the at least the first partition when engaged.

Abstract: A rotary recline mechanism for allowing reclining movement of a first part relative to a second part, the mechanism comprising: a first gear mechanism comprising first and second gear rings having first and second sets of teeth that engage to lock the first and second parts relative to each other and disengage on operation of an actuator to allow relative movement of the first and second parts by application of a force on one of the parts in a first direction, and a second override gear mechanism to allow relative movement of the first and second parts by application of a force in a second direction while the first and second sets of teeth are engaged.

Abstract: An articulating shelf including a first shelf portion having a first edge and an opposing second edge, a first hinge coupled the first edge of the first shelf portion, a second hinge coupled to the second edge of the first shelf portion, a second shelf portion having a first edge and an opposing second edge, the second edge of the second shelf portion coupled to the second hinge, a rod having a first end and an opposing second end, a rod support having a first end and a second send, the first end of the rod support coupled to the second edge of the second shelf portion and the second end of the rod support coupled to the rod between the first and the second ends of the rod, and an end cap including a plunger configured to extend and retract from the end cap.

Abstract: A system for securement of galley trolleys in aircraft comprises a motion sensor mounted to monitor a trolley in a trolley bay; a controller connected to the motion sensor, and an output device operatively connected to the controller. The controller is configured to receive a signal from the motion sensor to detect unsecured motion of a trolley in the trolley bay and the output device is configured to alert a user upon detection of unsecured motion of a trolley in the trolley bay. A method for securement of galley trolleys in aircraft includes monitoring a trolley in a trolley bay of an aircraft for motion and alerting a user upon unsecure motion of the trolley.

Abstract: A pressure relief valve comprises a base attachable to the pressure vessel at a vessel aperture, the base comprising a base face, the base face facing away from the vessel; a cap comprising a cap face, the cap face facing towards the vessel, the cap movable between an open position and a closed position, wherein in the closed position the cap seals the vessel aperture and in the open position flow through the vessel aperture is permitted to relieve pressure in the pressure vessel; and a gasket between the base face and the cap face, wherein in the closed position: the base face and the cap face contact the gasket at a first location to form a first seal; and the base face and the cap face contact the gasket at a second location to form a second seal.

Abstract: A sanitization system for an aircraft cabin may comprise: a cabin of an aircraft; a light system including a lighting unit configured to emit an electromagnetic radiation output between 300 and 430 nanometers (“nm”); an external reactive oxygen species (ROS) generator in fluid communication with the cabin, wherein the sanitization system is configured to disinfect a target area of the cabin by targeting the target area with the electromagnetic radiation output and the ROS.

Abstract: A faucet includes a faucet housing defining a mixing chamber and a dry chamber, a valve assembly, and a damper assembly. The valve assembly includes a main shaft having a first end and a second end, a knob coupled to the first end, a mixing plate coupled to the second end, a main seal coupled to the main shaft, and a first biasing member disposed around the main shaft. The first end is disposed within the mixing chamber and the second end is disposed within the dry chamber. The damper assembly includes an outer cylinder disposed within the dry chamber, a piston extending at least partially into the outer cylinder, and a second biasing member disposed within the outer cylinder. The piston has an interference surface configured to contact the knob, and the second biasing member is configured to bias the piston.

Abstract: A leakage protection system for a heating, ventilation, and air condition (HVAC) system can comprise: a power source; a louvered assembly including a frame, slats spaced apart vertically within the frame and extending from a first side to a second side of the frame, an actuator rod operably coupled to the slats, and a spring; a solenoid operably coupled to the actuator rod; and a first pressure switch disposed electrically between the power source and the solenoid.

Abstract: An automatic drain system may comprise a drain including a neck defining a drain orifice and a flange extending from the neck. A liquid detection sensor is located on at least one of the neck or the flange. A sink assembly may comprise a sink basin and the drain located in a sink opening formed in the sink basin.

Abstract: A cabin attendant seat includes a housing having an upper portion and a lower portion, a headrest rotatably coupled to the upper portion, a seat pan coupled to the lower portion, and a drop-down tray assembly rotatably coupled to the upper portion. The seat pan is detached from the headrest. The drop-down tray assembly and the headrest are configured to rotate along a first axis such that the drop-down tray assembly defines a platform.