E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
262/27
E02F 3/90 (2006.01) B63B 21/66 (2006.01) E02F 7/10 (2006.01) F16L 1/20 (2006.01)
Patent
CA 1107308
PIVOTABLE MEANS FOR DECREASING DRAG EFFECTS ON A GENERALLY CYLINDRICAL DREDGE PIPE ABSTRACT This invention provides a substantially flat plate hingedly connected to a substantially cylindrical pipe intended to be moved through the water in a generally longitudinal alignment, the plate extending behind the pipe during movement through the water. The hinged plate can be formed in modular sections, one or more plate sections being hingedly connected to a pipe section. Individual pipe sections are intended to be joined together to form a single longitudinally extending pipe, for example, for use as a dredge pipe in deep ocean dredging. The hinged plate can be directly connected to the main dredge pipe or the hinged plate can be connected to a substantially smaller diameter pipe which is in turn connected to the main pipe. The plate is preferably not less than two inches away from the outer surface of the main pipe. The plate is especially effective for the movement of substantially vertical pipe through water at speeds of up to about two knots.
328456
Deepsea Ventures Inc.
Meredith & Finlayson
LandOfFree
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