EP 0388055 B1 19921111 - EQUIPMENT FOR CARRYING OUT UNDERWATER OPERATIONS
Title (en)
EQUIPMENT FOR CARRYING OUT UNDERWATER OPERATIONS
Publication
Application
Priority
GB 8905600 A 19890311
Abstract (en)
[origin: EP0388055A1] Equipment (1) for carrying out underwater operations includes a submersible working chamber (2) at one end of an access shaft (3) and ballast weights (W) for adjusting the buoyancy of the equipment so that it can float freely with the chamber (2) submerged to a working depth and with the shaft upright and projecting above the surface. Divers can descend to the submerged working chamber (2) from the surface at atmospheric pressure through the access shaft (3) and a first hatchway closed by a pressure-resistant hatch (7), and can then pressurise the chamber (2) to the ambient hydrostatic pressure by actuating air supply means (9, 9A, 10, 11) so that they can enter and leave the water through a second hatchway closed by a pressure-resistant hatch (8). The divers can subsequently open a valve (12) to discharge the pressure in the chamber (2) in order to undergo decompression to atmospheric pressure in the working chamber before returning to the surface through the access shaft (3).
IPC 1-7
IPC 8 full level
B63C 11/38 (2006.01); E02D 23/10 (2006.01)
CPC (source: EP)
B63C 11/38 (2013.01); E02D 23/10 (2013.01)
Designated contracting state (EPC)
DE DK FR GB IT NL
DOCDB simple family (publication)
EP 0388055 A1 19900919; EP 0388055 B1 19921111; DE 69000444 D1 19921217; DE 69000444 T2 19930519; DK 0388055 T3 19930111; FI 901204 A0 19900309; GB 2229474 A 19900926; GB 8905600 D0 19890426; NO 901117 D0 19900309; NO 901117 L 19900912
DOCDB simple family (application)
EP 90302290 A 19900305; DE 69000444 T 19900305; DK 90302290 T 19900305; FI 901204 A 19900309; GB 8905600 A 19890311; NO 901117 A 19900309