Abstract: A froth heater can include an outer case defining an inner cavity, an inlet in fluid communication with the inner cavity, and an outlet in fluid communication with the inner cavity. The froth heater can include a heater core inserted into inner cavity and configured to form a flow path between an inner wall of the outer case and the heater core between the inlet and the outlet. The heater core can include a core cavity configured to receive a heater therein to heat the heater core.

Abstract: The inflatable harness crew mask includes an inflatable harness with a compressed gas supply system connected to the inflatable harness independent of oxygen supplied to the mask from an oxygen regulator. The mask includes a valve connector with an exhalation and inhalation valve and an inflation valve connected to a pressurized gas inflation supply assembly including a container portion for a compressed gas cartridge, and a regulator portion connected to provide pressurized gas from the cartridge to an inflation gas supply tube connected to the inflation valve, which is manually operable by the user.

Abstract: The inflatable harness crew mask includes an inflatable harness with a compressed gas supply system connected to the inflatable harness independent of oxygen supplied to the mask from an oxygen regulator. The mask includes a valve connector with an exhalation and inhalation valve and an inflation valve connected to a pressurized gas inflation supply assembly including a container portion for a compressed gas cartridge, and a regulator portion connected to provide pressurized gas from the cartridge to an inflation gas supply tube connected to the inflation valve, which is manually operable by the user.

Abstract: The full face flexible oxygen mask for use with flight helmets includes an elastic face seal with an oronasal cone that seals around the nose and mouth of the wearer, and flexible sealing flaps along the perimeter of the face seal to adapt the face piece of the mask to seal against the surface of a flight helmet. The mask face piece has two large sealing surfaces or channels down each side of the mask that overlap and flex to adapt to seal to a variety of flight helmets. The top of the face seal has an inner and outer flap that work together to seal the exposed face visible between the sides of the flight helmet.

Abstract: A multi-phase headset (50) for aircraft crew members is provided which includes an inflatable gas mask unit (54) and a visor unit (56), supported on the head of a user (60) by mounting assembly (52). The overall headset (50) also has a selectively and/or automatically operable motive and control assembly (60). Preferably; the mounting assembly (52) includes a pair of ear pieces (62, 64) and a strap assembly (66) to allow positioning of the headset (50) on the user's head, with the mask and visor units (54, 56) adjacent the crown of the user's head. In the event of an emergency, the mask unit (54) is lowered and the mask body (124) is inflated for delivery of breathable gas to the user (60). Also, the visor unit (56) may be lowered to a use position atop mask unit (54). The pneumatically or electrically operated motive and control assembly (60) serves to move the mask and visor units (54, 56) between their retracted and deployed position.

Abstract: A multi-phase headset (50) for aircraft crew members is provided which includes an inflatable gas mask unit (54) and a visor unit (56), supported on the head of a user (60) by mounting assembly (52). The overall headset (50) also has a selectively and/or automatically operable motive and control assembly (60). Preferably; the mounting assembly (52) includes a pair of ear pieces (62, 64) and a strap assembly (66) to allow positioning of the headset (50) on the user's head, with the mask and visor units (54, 56) adjacent the crown of the user's head. In the event of an emergency, the mask unit (54) is lowered and the mask body (124) is inflated for delivery of breathable gas to the user (60). Also, the visor unit (56) may be lowered to a use position atop mask unit (54). The pneumatically or electrically operated motive and control assembly (60) serves to move the mask and visor units (54, 56) between their retracted and deployed position.