Spar-buoy boring derrick and mooring facility
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United States of America Patent
Stats
-
Sep 3, 1991
Grant Date -
N/A
app pub date -
Feb 26, 1990
filing date -
Feb 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spar-buoy type boring device including a main pipe and a central pipe installed in the main pipe. The main pipe, which has a service deck at the top and a float near the top so that the float stays underneath the water, is anchored at the bottom to a sinker which is placed on the seabed, and the central pipe with the bottom end opening in the sea is used for guiding boring equipments to the seabed and collecting samples from the seabed.
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Cited Art Landscape
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