| 摘要 |
FIELD: diving equipment. SUBSTANCE: diving apparatus has semi-mask with casing sealed by means of elastic sealing device, semi-mask fastener, hermetically sealed pneumatic vessel communicated with semi-mask cavity, and breathing pipe with mouthpiece. Pneumatic vessel is made in the form of elastic bag or hollow jacket fixed to diver's body and communicated with semi-mask cavity through flexible hose. EFFECT: wider diver's functional capabilities due to light weight of apparatus components, provision for free movement, increased time of staying under water and simplified lifting from depth. 3 cl, 2 dwg |
