| 摘要 |
<p>A safety vest flotation system wearable by airline or water ferry passengers is folded and stowed below the seat. The vest is worn by slipping the head through a central aperture and securing the waist belt. Air chamber cells surround the chest. Plural pressurized air or oxygen cylindrical cartridges are integrally attached to the vest. These cartridges are activated to release their contents to air chamber cells. A breathing tube is connected to air chamber cells at the proximal end. The breathing tube has a closure valve midway and a mouthpiece at its distal end. During a cabin smoke event, the user dons the vest, activates the cartridges to inflate air chamber cells, places the mouthpiece in the mouth and opens the closure valve. Fresh air received through the tube prevents smoke induced asphyxiation. During a water accident, the closure valve is closed to provide buoyancy and thereby prevent drowning.</p> |
