E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
262/30
E02F 3/92 (2006.01)
Patent
CA 1247663
Abstract of the Disclosure Disclosed is a boom pivotally mounted for rotation about a vertical axis on a support vehicle which may be a floating barge or heavy truck. The boom is extensible and retractable in the radial direction and mounts, at a distal end, a cable supporting a dredging apparatus. The dredging apparatus in a preferred embodiment comprises a single cutter head assembly mounted above and just forward of a single pump both of which are driven by electric power supplied by a generator on the support vehicle. In a preferred embodiment, the cutter head comprises a central support section and a plurality of blades attached to the central support section at each end with a mid-portion extending outwardly of the support section. In a further preferred embodiment, the pump assembly comprises an electric motor in a sealed housing, connected to a pump including an impeller driven by a shaft connecting the impeller and the electric motor. The rotating shaft is supported by a bearing and between the bearing and the impeller portion of the pump, a mechanical seal is substituted for conventional elastomeric seals. In a further preferred embodiment, where it is desirable to operate two or more floating vessels, each vessel is equipped with a tab extending outwardly from a side of the vessel and the tabs of adjoining vessels can be connected together by way of a bolt or pin.
492552
Hill Charles E.
Hill Edwin L.
Hill Ernest W.
Hill Charles E.
Hill Edwin L.
Hill Ernest W.
Robic Robic & Associes/associates
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