Passenger emergency oxygen mask drop zone extender

In a distributing emergency oxygen mask system for distributing emergency oxygen masks over an abreast seating arrangement in a pressurized passenger compartment of an airplane having an overhead passenger service unit housing the emergency oxygen masks and having a door that opens in response to accidental decompression of the passenger compartment;

• the improvement comprising a linear actuator mounted laterally to the inside of said door and having a spring-armed extendible rod;
• a trigger means for retaining said rod in the armed condition;
• means for holding an emergency oxygen mask from the extendible end of said rod;
• and means for triggering the spring-armed extendible rod in response to opening of the door, for extending the emergency oxygen mask held by said rod, to within the normal reach radius of passengers in the abreast seating arrangement that are outside of the vertical drop zone of the emergency oxygen masks from the overhead passenger service unit.

Apparatus for laterally extending an emergency oxygen mask over an abreast seating arrangement in the pressurized passenger compartment of an airplane, comprising:

• a passenger service unit having a stowage compartment for emergency oxygen masks;
• said passenger service unit adapted to be stationed overhead the abreast seating arrangement;
• said oxygen mask stowage compartment having a downward opening hinged door including means for automatically opening said door in response to passenger compartment depressurization;
• a spring-cartridge extension unit integrally and laterally affixed to the inside of the compartment door and having a spring-armed extendible rod;
• a keeper for retaining said rod in the armed condition;
• a hose retainer attached to the extendible end of said rod for holding the hose of an oxygen mask;
• and means for releasing the spring-armed extendible rod in response to opening of the compartment door, for extending the emergency oxygen mask over the abreast seating arrangement.