Abstract: A queue system for a lavatory of an aircraft can include a queue module configured to receive a request from a user input device and to create and/or modify a virtual lavatory queue based on a request hierarchy of the request to position the request in the virtual lavatory queue, and a sensor operatively connected to the queue module and configured to output a state change signal indicative of a user leaving the lavatory. The queue module can be configured to receive the state change signal, iterate the virtual lavatory queue in response to the state change signal, and output a vacancy indicator signal to an indicator device associated with a request that is at a front of the virtual lavatory queue after iterating the virtual lavatory queue to indicate to a user that it is the user's turn in the queue.

Abstract: A beverage mixing device is may comprise a controller in electronic communication with a sensor, the controller configured to: determine a drink type based on receiving sensor data from the sensor, and mix a pre-mixed composition with a carbonated water or a non-carbonated water based on the drink type.

Abstract: An beverage mixing device is may comprise a controller in electronic communication with a sensor, the controller configured to: determine a drink type based on receiving sensor data from the sensor, and mix a pre-mixed composition with a carbonated water or a non-carbonated water based on the drink type.

Abstract: A beverage mixing device may comprise: a plurality of bulk pre-mixed compositions disposed within a housing; a user interface; and a controller in electronic communication with the user interface, the controller configured to: determine a drink type based on a selection from the user interface, dispense a carbonated water or a non-carbonated water through the nozzle based on the drink type, and dispense a pre-mixed composition based on the drink type, the pre-mixed composition dispensed through the nozzle.

Abstract: A beverage mixing device is disclosed herein. The beverage mixing device may comprise: a capsule receiver configured to receive a capsule including a pre-mixed composition, the capsule receiver including a first sensor; a carbonation vessel disposed within the housing, the carbonation vessel configured for on-demand carbonatation; and a controller in electronic communication with the first sensor, the controller configured to: determine a drink type based on receiving sensor data from the first sensor, and dispense a carbonated water or a non-carbonated water based on the drink type.

Abstract: An beverage mixing device is may comprise a controller in electronic communication with a sensor, the controller configured to: determine a drink type based on receiving sensor data from the sensor, and mix a pre-mixed composition with a carbonated water or a non-carbonated water based on the drink type.

Abstract: An air filter health monitoring system includes a filter spanning an air passage for filtering solids and/or liquids out of an air flow passing through the air passage. An illuminator is positioned on a first side of the filter and directed to illuminate the filter. An illumination sensor is positioned on a second side of the filter. The illuminator and illumination sensor can each be spaced apart from the filter. The filter can be installed in a galley insert and can include a reticulated filter medium folded in a v-shape over a v-shaped grid work.

Abstract: A brew head assembly insertable within a brewing apparatus dimensioned to fit within a compartment in a galley of an aircraft may include an adjustable assembly and a brew cup. The adjustable assembly may include a brew head and a support member. The support member may define a first brew head cavity. The brew head may be at least partially inserted into the first brew head cavity. The adjustable assembly may be actuatable between an open position and at least one closed position. The brew cup may define a second brew head cavity. The brew head may be at least partially inserted into the second brew head cavity. A height between the brew head and the brew cup when the adjustable assembly is in the at least one closed position may be responsive to one or more parameters of a brew pod of a plurality of brew pods.

Abstract: A queue system for a lavatory of an aircraft can include a queue module configured to receive a request from a user input device and to create and/or modify a virtual lavatory queue based on a request hierarchy of the request to position the request in the virtual lavatory queue, and a sensor operatively connected to the queue module and configured to output a state change signal indicative of a user leaving the lavatory. The queue module can be configured to receive the state change signal, iterate the virtual lavatory queue in response to the state change signal, and output a vacancy indicator signal to an indicator device associated with a request that is at a front of the virtual lavatory queue after iterating the virtual lavatory queue to indicate to a user that it is the user's turn in the queue.

Abstract: A system comprises an overhead bin including a door configured to open and close an opening of the overhead bin for access to and securing of an interior space of the overhead bin. A latch mechanism is operatively connecting the opening of the overhead bin to the door of the overhead bin to secure the door to the opening in a closed position, and to release the door from the opening for access to the interior space. A controller is operatively connected to the latch mechanism, the controller having a wireless receiver and machine readable instructions configured to cause the controller to release the latch mechanism for releasing the door from the opening upon receipt of a wireless command to open the overhead bin.

Abstract: A brew head assembly insertable within a brewing apparatus dimensioned to fit within a compartment in a galley of an aircraft may include an adjustable assembly and a brew cup. The adjustable assembly may include a brew head and a support member. The support member may define a first brew head cavity. The brew head may be at least partially inserted into the first brew head cavity. The adjustable assembly may be actuatable between an open position and at least one closed position. The brew cup may define a second brew head cavity. The brew head may be at least partially inserted into the second brew head cavity. A height between the brew head and the brew cup when the adjustable assembly is in the at least one closed position may be responsive to one or more parameters of a brew pod of a plurality of brew pods.