Apparatus for deploying oxygen masks

Abstract

An apparatus for deploying oxygen masks that includes a pre-packaged modular system that does not require manual repacking of oxygen masks by aircraft technicians. The cartridge is for use with a manifold having a passageway in fluid communication with a source of breathable gas. The cartridge includes an end wall, a sidewall extending from the end wall and terminating at a distal end adjacent to an opening. A flexible member defines a chamber inside the cartridge. The chamber is in fluid communication with the passageway when the cartridge is coupled to the manifold. The flexible member has an outlet. A mask assembly is disposed inside the cartridge. The mask assembly has a hose coupled to the outlet of the flexible member. A cover is removably attached to the distal end of the at least one side wall.

1 . A cartridge for use with a manifold, the manifold having a passageway in fluid communication with a source of breathable gas, the cartridge, comprising: 
 an end wall;    at least one sidewall extending from the end wall and terminating at a distal end adjacent to an opening;    a flexible member defining a chamber inside the cartridge, the chamber in fluid communication with the passageway when the cartridge is coupled to the manifold, the flexible member having an outlet;    a mask assembly disposed inside the cartridge, the mask assembly having a hose coupled to the outlet of the flexible member; and,    wherein pressure against the flexible member caused by flow of the breathing gas into the chamber causes the mask to eject from the cartridge through the opening at the distal end of the at least one sidewall.    
   
   
       2 . The cartridge of  claim 1 , further comprising a flange capable of engaging with a locking element on the manifold.  
   
   
       3 . The cartridge of  claim 1 , wherein the flexible member comprises a diaphragm.  
   
   
       4 . The cartridge of  claim 1 , wherein the flexible member comprises a bellows.  
   
   
       5 . The cartridge of  claim 3 , wherein the diaphragm is attached to the at least one sidewall at a midpoint.  
   
   
       6 . The cartridge of  claim 3 , wherein the diaphragm is attached to the end wall.  
   
   
       7 . The cartridge of  claim 1 , wherein the end wall has an opening defined therein, the opening being in registry with the passageway when the cartridge is coupled to the manifold.  
   
   
       8 . The cartridge of  claim 1 , further comprising a valve disposed in operative relation with the mask assembly such that the valve is opened to allow flow of the breathing gas to the mask assembly when a user applies a force to the mask assembly.  
   
   
       9 . The cartridge of  claim 8 , wherein the valve is actuated by a lanyard attached to the mask assembly.  
   
   
       10 . The cartridge of  claim 1 , further comprising a valve responsive to a user drawing a breath through the mask assembly, the valve controlling flow of the breathing gas to the mask assembly.  
   
   
       11 . A cartridge for use with a manifold, the manifold having a passageway in fluid communication with a source of breathable gas, the cartridge, comprising: 
 an end wall having an opening defined therein, the opening being in registry with the passageway when the cartridge is coupled to the manifold;    at least one sidewall extending from the end wall and terminating at a distal end adjacent to an opening;    a mask assembly disposed inside the cartridge, the mask assembly having a hose disposed in fluid communication with the opening in the end wall; and,    a biasing member disposed on one of the cartridge and the manifold, the biasing member disposed in a normally closed configuration adjacent the mask assembly such that the biasing member is capable of being released such that it engages with the mask assembly to eject the mask assembly through the opening at the distal end of the at least one sidewall.    
   
   
       12 . The cartridge of  claim 11 , further comprising a piston disposed between the mask assembly and the biasing member.  
   
   
       13 . The cartridge of  claim 11 , wherein the biasing member is biased in the closed position by a latch.  
   
   
       14 . The cartridge of  claim 13 , wherein the latch engages with a catch on the manifold.  
   
   
       15 . The cartridge of  claim 11 , wherein a cover holds the biasing member in the closed position.  
   
   
       16 . The cartridge of  claim 15 , wherein the cover is opened by a solenoid actuated latch such that opening of the cover releases the biasing member which in turn ejects the mask through the opening at the distal end of the at least one sidewall.  
   
   
       17 . The cartridge of  claim 11  further comprising a retaining member having a compartment for receiving the biasing member, the retaining member having a latch attached thereto.  
   
   
       18 . The cartridge of  claim 17 , wherein the latch on the retaining member engages with a catch disposed on the manifold.  
   
   
       19 . The cartridge of  claim 16 , wherein releasing the latch causes the biasing member to eject the retaining member through the opening at the distal end of the at least one sidewall.  
   
   
       20 . The cartridge of  claim 17 , wherein the hose wraps around an outside surface of the retaining member.