초록

An underwater craft having a buoyancy control system, multi-sealed passenger chamber and emergency shut-off for external operation using inherent buoyancy of the craft.

대표청구항 ▼

[ What is claimed is:] [1.]1. A sealable chamber comprising:an interior;an exterior;a first section having a first end surface;a second section having a second end surface, said first end surface adapted to engage said second end surface;a plurality of substantially concentrically arranged fluid bar

[ What is claimed is:] [1.]1. A sealable chamber comprising:an interior;an exterior;a first section having a first end surface;a second section having a second end surface, said first end surface adapted to engage said second end surface;a plurality of substantially concentrically arranged fluid barriers graduated to seal at different depth ranges, positioned between said first end surface and said second end surface, including a first fluid barrier rated for a first depth range and a second fluid barrier rated for a lower depth range than the first fluid barrier.