Dredge with adjustable bottom support for suction pipe and metho

Details Dredge with adjustable bottom support for suction pipe and metho Dredge with adjustable bottom support for suction pipe and metho

1982-10-19

1984-09-11

Crowder, Clifford D.

Excavating

Peat excavators

37 58, 37 72, 37195, E02F 388

Patent

active

044702086

ABSTRACT:
Method for suctioning submerged bottom material with the aid of at least a suction pipe connected to a vessel, whereby said suction pipe is lowered from said vessel in an inclined or vertical position and an underpressure is created in said suction tube for suctioning a mixture of bottom material and water through the tube via one or more suction openings near the lower side of the suction tube. The lower part of the suction tube is forced over a certain distance into the bottom such that during suctioning of the mixture of bottom material and water always at least a part of the weight of the suction tube is carried by the bottom material, e.g. by a supporting surface formed in said bottom material. The suction tube is at least in longitudinal direction anchored, and the mixture of bottom material and water is suctioned by transversal openings in the suction tube at a distance from this supporting surface.

REFERENCES:
patent: 687830 (1901-12-01), Kirk
patent: 842364 (1907-01-01), White
patent: 2146790 (1939-02-01), Brewer
patent: 2599980 (1952-06-01), Dunning
patent: 2711598 (1955-06-01), Craggs, Jr.
patent: 2995842 (1961-08-01), Korste
patent: 3153290 (1964-10-01), Saito
patent: 3311414 (1967-03-01), Cannon, Sr. et al.
patent: 3611595 (1971-10-01), DeKoning
patent: 3681862 (1972-08-01), DeKoning et al.
patent: 3756659 (1973-09-01), DeKoning
patent: 3772805 (1973-11-01), DeKoning
patent: 3909960 (1975-10-01), Casciano

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