A passenger service unit assembly that includes a frame that defines at least an oxygen opening and a service opening, an oxygen mask housing positioned adjacent the oxygen opening, an oxygen mask housing cover positioned to cover the oxygen opening, and a service cover positioned to cover the service opening. An oxygen mask that is movable between a stowed position and a deployed position is positioned in the oxygen mask housing. The oxygen mask housing cover maintains the oxygen mask in the stowed position. The oxygen mask housing cover is movable between a closed position and an open position. When the oxygen mask housing cover is moved to the deployed position, the oxygen mask drops to the deployed position via gravity. The service cover is movable between a closed position and an open position and includes at least a first passenger service unit component associated therewith.

Disclosed are methods for arranging passenger seats and passenger service units in aircraft cabins as well as locating devices used in these methods. These methods and devices provide fast and efficient ways for directly referencing the position of each passenger service unit relative to a corresponding passenger seat. For example, a passenger seat is positioned on a seat rail using rail markers. Each set of markers corresponds to a different seating configuration. A locating device is then placed on the passenger seat such that the device datum contacts the seat cushion. A locator of the locating device determines a reference, in an overhead compartment, for installing a passenger service unit, corresponding to this seat. The reference is based on an angle between the datum and the locator, which is adjustable in some examples.

In a preferred embodiment, methods and systems for the control of the breathing gas supply from a pressure-leading supply conduit to one or more breathing masks of an oxygen emergency supply device in a passenger aircraft include an on/off valve arranged between the supply conduit and the one or more breathing masks. The valve can be blocked or released to control air supply based upon monitoring mass flow to the breathing masks. The valve, for example, is actuated to an open position until the error between the actual mass flow and a desired mass flow exceeds a maximal error value, whereupon the valve is actuated to a closed position until the error between the actual mass flow and the desired mass flow exceeds a minimal error value whereupon the valve is actuated to the open position and the mass flow monitoring cycle is repeated.

Disclosed herein is an overhead passenger service unit (PSU) for a vehicle, comprising: a mounting mechanism for mounting the PSU above at least one vehicle seat; a dynamic seat row marker that provides an indication of a seat position and a status portion indicating a status of a passenger or trip aspect that is readily viewable from a vehicle aisle and is changeable during a trip; and a programmable active display that is readily viewable from a passenger seat and provides trip changeable information about the trip to the passenger.

A respiratory equipment for an aircraft, a pilot or first officer of the aircraft forming a user of the respiratory equipment, the respiratory equipment comprising a head armature, configured to be worn on the user's head, a respiratory mask configured to be applied, in a use position around the mouth and nose of a user, an inflatable harness configured to be coupled to a pressurized gas source, an inflation of the inflatable harness causing an extension of the inflatable harness such that the respiratory mask can be brought opposite the mouth and nose of a user, and a purge of the inflatable harness causing a constrained application of the inflatable harness against the mouth and nose of a user, wherein the head armature comprises at least an occipital member, and a front cradle for receiving and lodging the respiratory mask in a waiting position, wherein the inflatable harness is fixed to the occipital member and the inflatable harness is coupled to the respiratory mask.

The emergency oxygen supply for passengers in an aircraft comprises an oxygen source with a number of pulse breathing masks which are conductively connected to the oxygen source, wherein an individual shut-off valve which in the non-actuated condition is switched to block is provided in each conduit to a breathing mask. The emergency oxygen supply moreover comprises an impulse breathing control for actuating each individual shut-off valve, as well as an auxiliary conduit which connects the oxygen source to the breathing masks whilst bypassing the individual shut-off valves and which in each case via a check valve is connected to the respective conduit which leads to the breathing mask, or to the breathing mask itself. The auxiliary conduit is connected to the oxygen source via a central shut-off valve which is switched to open in the non-actuated condition.

Assembly intended in particular to be arranged in a cockpit of an aircraft, said assembly comprising a respiratory mask and a stowage device, wherein: the respiratory mask has a face cover and a harness, the stowage device comprises a base and a platform, the platform is adapted to receive the respiratory mask in a stowage position where the harness forms a loop extending around the platform, the platform comprises a main element movable relative to the base between a retracted position and a protruding position, and the platform further comprises auxiliary elements, the auxiliary elements movable with respect to the main element between a flattened configuration and an expanded configuration of the platform.

Assembly intended to be arranged in an aircraft cockpit having a pressurized cabin, in order to supply a breathing gas to a crew member, said assembly comprising a respiratory mask having an oronasal face cover and a harness, the oronasal face cover having a respiratory cavity and being suitable for applying on the face of the crew member around the mouth and nose, the harness forming a loop adapted to be extended around the head of the user on a side opposite from the oronasal face cover so as to hold the oronasal face cover on the face of the user, and a storage device, said storage device comprising a base and a platform, the platform being mounted so as to be movable relative to the base between a retracted position and an extended position, the platform having a receiving surface, the receiving surface of the platform being adapted to receive the respiratory mask in a storage position where the harness holds the oronasal face cover against the receiving surface of the platform by encircling the platform to form a loop extending around the platform on the opposite side from the oronasal face cover, the respiratory mask being releasable from the storage device.

A vehicle oxygen indication system that includes at least one oxygen source, and a plurality of oxygen assemblies. Each oxygen assembly includes a hose, a switch, a mask, and a flow indicator. The hose includes a lumen through which oxygen can flow from the oxygen source to the mask. The switch is switchable between a normal state when oxygen is not flowing from the oxygen source to the mask and a flow state where oxygen flows to the mask. When the switch is in the flow state, the flow indicator is switched from a static state to an indication state.

An audio signal processing system for a microphone of an aircraft oxygen mask receives audio signals captured by the oxygen mask microphone. The audio signal processing system comprises: a module for detecting breathing noise within the audio signals comprising a frequency decomposition module and a first classification neural network, a module for detecting voices within the audio signals by virtue of a second classification neural network, and a selective attenuation module supplying audio signals corresponding to the audio signals selectively attenuated in amplitude, no attenuation being applied in the presence of voice signals within the audio signals, and otherwise, an attenuation being applied in the presence of breathing noise within the audio signals. Thus, the intelligibility of the communications involving a pilot wearing the oxygen mask is improved.