METHOD OF CREATING POSITIVE BUOYANCY IN OCEAN AND SEA MEDIA Russian patent published in 2004 - IPC

FIELD: shipbuilding; methods of creating positive buoyancy under water. SUBSTANCE: method consists in lowering buoyancy float with flexible pipe line connected to it to preset depth and filling it with fresh water fed under the following pressure: P = P₀+(γ-γ₀)•H•10^-1, where P is pressure of fresh water fed to flexible pipe line, kg/sq cm; P₀ is pressure at buoyancy float inlet, kg/sq cm; γ is density of sea or ocean water, t/cu m; γ₀ is depth of submergence of float, m. To promote raising, compressed air may be fed to float at pressure exceeding hydrostatic pressure at depth of discharge of air from bottles. Flexible pipe line may be filled with water at moment of submergence of float to preset depth; to this end, fresh water is fed to pipe line in the course of submergence of float. EFFECT: enhanced economical efficiency and ecological safety; possibility of creating buoyant force at any depth of World ocean. 3 cl