Excavating – Peat excavators
Patent
1977-11-01
1979-12-18
Crowder, Clifford D.
Excavating
Peat excavators
37 58, 37DIG8, E02F 394
Patent
active
041787048
ABSTRACT:
To mechanically assist the suction action of a dredge head in dislodging particles embedded, e.g., on the ocean floor, a plurality of fingers extend downwardly from along the upper edge of an obliquely downwardly and forwardly facing nozzle opening. The fingers are resiliently connected to the nozzle and thus are capable of being bent downwardly so as to be juxtaposed across and thus temporarily block, the nozzle opening, whereby the intake of oversized particles is prevented.
REFERENCES:
patent: B531753 (1976-03-01), Brockett
patent: 597190 (1898-01-01), Reynolds
patent: 1097722 (1914-05-01), Lake
patent: 1729054 (1929-09-01), Shotwell
patent: 2204584 (1940-06-01), Flower
Christian Ted W.
Donaldson Robert M.
Latimer John P.
Miller Glen E.
Crowder Clifford D.
Deepsea Ventures, Inc.
Magidoff Barry G.
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