Emergency Air Device

KEAD

For situations in which a person may be liable be sudden immersion in water; say from falling off the side of a ship, or the need to escape from submerged Helicopter, or from sailing in a small craft of a type which is liable to capsize, there is a need for an easily deployable Emergency Air supply.

The KEAD Device, consists of a High Pressure Cylinder pressurised, say, to 300 bar, on which is mounted a KIM Module-type Pressure Regulator system, and into which is slotted a Breathing Valve.

The Pressure Regulator system incorporates a Filling Port, a Contents Indicator, a Burst Disc, and a Stop Valve. There is also a Docking point for the Breathing Valve. When the Breathing Valve is in the Docked position, and with the Stop Valve open, there is no airflow through the Breathing Valve until it is removed from its Docked position. Upon removal, air starts to flow, so that it purges the Breathing Valve of water, ensuring that by the time the user has the Breathing Valve in the mouth, breathing air is available.

The breathing airflow is not continuous in operation; as airflow is cut off during the exhale part of the breathing cycle.

The employment of a KIM Module in the Pressure Regulator, ensures a constant level of supply pressure, and maximum use of the cylinder’s volume.

Prototype Detail Drawings, and a Working Sample are available.