Floating offshore drilling platform - with two crabs on derrick and turntable for underwater storage of drill tubes
EP0007921A1
Under water drum collector with a tower for collecting manganese nodules on the sea bottom
DE2817893A1
Underwater manganese nodule gathering equipment - has radial suction arm assembly travelling to=and=fro on rails inside travelling frame
DE2752919A1
Conveyor for removing dredged sediment - has parallel tubes inside which conveying baskets are raised and lowered, each with swinging flap
DE2659290A1
Marine platform for sea bed ore extraction - has four suction tubes attachable to bunkers at platform feet using vertically movable platform
DE2654054A1
Marine platform for mineral extraction - has drilling tower stabilised by water circulating in tubular rings
DE2614492A1
Vertical tube floating support for oil drilling platform - has point support and central stabilising control varying pressure to meet buoyancy requirements
DE2609457A1
Pipe laying vessel with seafloor trench digger - has inclined conveyor to carry sections of large bore piping to seabed
DE2603832A1
Underwater plant for transporting ores and solids - has accessible pumping room below sea level with bunker for separating solid material from sea water
DE2601531A1
Derrick base for use in seabed drilling - uses double hemisphere cup with open bottoms as foot and sliding layer between cups
DE2559284A1
Underwater metal gathering equipment - has frame with ballast filled hollow beams between which gathering members travel
DE2557100A1
Circular cross section mining operation ship - has several sections arranged vertically over each other and linked by columns
