F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
103/14, 262/27
F04F 5/42 (2006.01) E02F 3/90 (2006.01) E21C 45/00 (2006.01) F04F 5/26 (2006.01) F04F 5/46 (2006.01)
Patent
CA 1260022
Abstract of the Disclosure This disclosure relates to deep sea mining apparatus, comprising a relatively straight lift pipe, the lift pipe being adapted to extend substantially vertically from the floor of a body of water upwardly to a ship on the surface of the water. A plurality of jet pumps are connected in the pipe at intermittent locations along the length of said pipe, and a hydraulic feed pump is located adjacent each of the jet pumps and is connected to discharge water in its location and to supply the associated jet pump. Means is also provided for injecting compressed air into the jet pumps, the jet pumps thereby forming an ascending current inside the lift pipe by the introduction of the compressed air and water. A densimeter and a flow meter are connected in the pipe, and control means is connected to respond to the outputs of the densimeter and the flow meter and to control the supply of pressurized water from the hydraulic feed pumps to the jet pumps and the amount of compressed air introduced to the lift pipe, in response to the outputs of the densimeter and the flow meter.
502561
G. Ronald Bell & Associates
Idc Kabushiki Kaisha
Kabushiki Kaisha Miwa Seisakusho
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