Self-cleaning fixed dredge

Details Self-cleaning fixed dredge Self-cleaning fixed dredge

1973-12-21

1978-02-21

Gilliam, Paul R.

37 58, 37 61, E02B 302

Patent

active

040745350

ABSTRACT:
A generally horizontal, perforated pipe extends across the bottom of a waterway to be dredged and, in some embodiments, is connected to a suction pump above the water level. The perforations in the horizontal pipe are cleaned of debris by a plurality of horizontal nozzles supplied with water under high pressure which direct high velocity water streams across each perforation to mix with sand along the bottom of the waterway and thereby abrade any obstructions which have settled over the perforations.

REFERENCES:
patent: 510713 (1893-12-01), Scott
patent: 967797 (1910-08-01), Lovett
patent: 1388040 (1921-08-01), Hood
patent: 2442358 (1948-06-01), Harp
patent: 3013395 (1961-12-01), Gaylord
patent: 3638432 (1972-02-01), Schoonmaker

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