SUBMARINE Russian patent published in 1998 - IPC

FIELD: shipbuilding; appliances for rescue of submarines. SUBSTANCE: submarine includes flexible envelopes, pressure gas source and control equipment. Envelopes are located on either side from center of mass along axis of submarine; they are kept in folded state in chambers provided with hinged covers. Control equipment includes valve connected with pressure gas source, inner cavity of flexible envelope and differential pressure gauge whose cavities are connected with outside water medium and interior of submarine. Flexible envelopes are enclosed in load-bearing nets for limiting expansion of envelopes brought outside the submarine hull. Safety valve is fitted in lower portion of envelope. EFFECT: reliable rescue of submarine at any damage; reduced mass and improved tactical characteristics of submarine. 2 cl, 2 dwg