Water craft for clearing navigational waters

Details Water craft for clearing navigational waters Water craft for clearing navigational waters

1987-11-23

1989-05-23

Crowder, Clifford D.

Excavating

Peat excavators

E02F 528

Patent

active

048317519

ABSTRACT:
A water craft for clearing navigational waters comprises a floatable body (10) which is provided with propulsion in the form of a propeller (16) and steering in the form of a rudder (18). Two arms (28) are pivotally mounted in the central third portion of the craft, below the waterline of the craft when in use. A scoop (24) is pivotally mounted to the ends of the two arms (28), and may be pivoted by means of a hydraulic ram (42). The arms (28) are pivotable upwardly and downwardly by retraction and extension respectively of associated double-acting hydraulic rams (50).

REFERENCES:
patent: 575272 (1897-01-01), Potter
patent: 2606375 (1952-08-01), Braun et al.
patent: 2640284 (1953-06-01), Nielsen
patent: 2853812 (1958-09-01), Van Riet et al.
patent: 2952083 (1960-09-01), Forkner
patent: 3486253 (1969-12-01), Bruggeman
patent: 4676052 (1987-06-01), Hawk

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