DEVICE FOR REPAIR OF HOLES Russian patent published in 2004 - IPC

FIELD: shipbuilding; emergency and rescue devices; devices for repair of holes in ship's hull. SUBSTANCE: proposed device includes cone-shaped elastic envelope 1 with base in form of ring 5, sealing member in its vertex in form of flexible cloth 3 of small thickness with tightening rope 2 and tightening cord 4, fastening member in form of torus-shaped pneumatic envelope 10 with adjoining cloth 13 fitted with clamping unit 16 secured on projection of base of envelope 1, three torus-shaped pneumatic envelopes 8 and 9 secured on base in envelope 1 at smooth conjugation. For repair of hole, envelope 10 is charged with compressed air and envelope 1 is brought to hole 20 at free flow of sea water through its ring 5. Then, device is secured on hole by means of thimbles 16 and air is fed to envelopes 8 and 9 which straighten ring 5 coated on the outside with adhesive agent; it is secured on ship's plating. Vertex of envelope 1 is sealed with rope 2 and tightening cord 4 is wound on cloth 3. Entry of water is discontinued and envelope 1 gets swollen embracing the hole and ring 5 gets tightly pressed to ship's hull. EFFECT: facilitated procedure; extended field of application. 4 cl, 6 dwg