Subsea excavation and suction device

Details Subsea excavation and suction device Subsea excavation and suction device

2008-07-08

2008-07-08

Hartmann, Gary S (Department: 3671)

Excavating

Beneath a body of water

By use of submarine or undersea vessel

C037S321000, C037S322000, C037S323000, C037S324000

Reexamination Certificate

active

07395618

ABSTRACT:
Subsea excavation and suction device includes a suction head with an inlet opening at an outer, free end and an outlet opening connected to a suction hose arranged at a distance from the inlet opening. The suction head is mounted on a hydraulic controller arm and at the inlet opening is provided with mechanical and hydraulic devices to disintegrate solid material (sediment). The hydraulic device includes a number of jet nozzles, while the mechanical device includes bars. The cross-sectional area of the inlet opening is larger than the cross-sectional area of the outlet opening.

REFERENCES:
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patent: 2004/0010947 (2004-01-01), Hutchinson et al.
patent: 1262660 (1972-02-01), None
patent: 10-082271 (1998-03-01), None
patent: 2004-316237 (2004-11-01), None

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