Device for filling in a trench dug in the sea bed in order to cover a pipe laid down in the trench
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United States of America Patent
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Aug 26, 1997
Grant Date -
N/A
app pub date -
Nov 7, 1995
filing date -
Jan 7, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved trench-filling device for covering a pipe and filling in a trench dug in a sea bed, characterized in that the device comprises two sets of nozzles (6,7) arranged above and proximate to the sea bed on both sides of the trench (1), the nozzles pointing towards the sea bed and towards the trench and being fed with pressurized water to direct powerful jets of water into the ground making up the sea bed adjacent the trench to deposit into the trench constituent parts of the adjacent ground as the trench-filling device progresses along the trench, and guides (14, 14') provided above to channel the high pressure jet streams created by the nozzles (6,7).
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