Excavating – Beneath a body of water – With vessel – propulsion – or anchor structure
Patent
1998-04-06
2000-03-28
Lillis, Eileen Dunn
Excavating
Beneath a body of water
With vessel, propulsion, or anchor structure
37307, B63B 2150, E02D 1716
Patent
active
060415274
ABSTRACT:
A bidirectional dredge provides active dredging on both forward and reverse passes across an area being dredged. The dredge includes a pivot turning mechanism that allows a turnaround of the dredge, allowing each pass to start at the terminating point of the previous pass. The dredge is driven by a winch attached to an overhead cable strung between the perimeter of the dredging area. The winch is mounted on a pivot mechanism which is operative to rotate the dredge at each end of a dredging pass. The pivot mechanism includes a pair of plates which rotate, a lower plate being attached to the dredge, and an upper plate attached to the winch. At the end of each pass, the pivot unit is activated and the dredge rotated. Following rotation, the dredge is now facing forward toward the distal end of the dredging area, and ready to effect an active dredging pass in the opposite direction, thereby utilizing every pass over the area for active dredging.
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Pamphlet: Why can we guarantee a Sludge Removal System that fits your needs? by: SRS Crisafulli, Crisafulli Drive, P.O. Box 1051, Glendive, MT 59330-1051 U.S.A., (6 pp.).
Hartmann Gary S.
Lillis Eileen Dunn
SRS Crisafulli, Inc.
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