Apparatus for recovering particulate material from the sea botto

Details Apparatus for recovering particulate material from the sea botto Apparatus for recovering particulate material from the sea botto

1975-08-13

1977-08-09

Purser, Ernest R.

Mining or in situ disintegration of hard material

With separation of materials

Separation below surface of earth or water

37 57, 37 70, 37 72, 254173R, E02F 500, E02F 906

Patent

active

040406679

ABSTRACT:
A hydraulic dredge for recovering manganese nodules from the sea bottom includes a transfer station suspended from a mother ship at a fixed depth from the surface and a dredging tool assembly suspended from winches on the transfer station by means of cables whose effective lengths are varied in response to depth signals from sensors respectively associated with the cables on respective parts of the tool assembly to keep the same contiguously adjacent the sea floor surface in parallel relationship.

REFERENCES:
patent: 2661550 (1953-12-01), Graham
patent: 3159806 (1964-12-01), Piasecki
patent: 3469821 (1969-09-01), Gross et al.
patent: 3522670 (1970-08-01), Flipse et al.
patent: 3556598 (1971-01-01), Smith
patent: 3596070 (1971-07-01), McCool
patent: 3638338 (1972-02-01), Nelson
patent: 3656095 (1972-04-01), Cavey
patent: 3697134 (1972-10-01), Murray
patent: 3829160 (1974-08-01), Condolios
patent: 3905137 (1975-09-01), Gee

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