Hydraulic and earth engineering – Fluid control – treatment – or containment – Floatable matter containment
Patent
1979-11-20
1981-09-15
Corbin, David H.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Floatable matter containment
405 66, 405211, E02B 100
Patent
active
042894239
ABSTRACT:
A protective skirt for a tabular iceberg (10) comprises a string of floating posts which support an upper protective portion near the water line. This portion is constituted by flexible panels (12) which provide both thermal protection and mechanical protection against wave action. Certain posts (e.g. A, B and F) include vertically arranged furling drums for winding-in the panels (12) attached thereto in order to fit the length of the skirt around the perimeter of iceberg.
The skirt also includes a lower protective portion (e.g. spans 50, 52, 54) which is suspended from below the floating posts. This portion need only provide thermal protection since it is suspended below the deepest expected wave troughs. It is too large (e.g. 200 m) in the vertical direction for it to be conveniently wound-in on furling drums like the upper protective portion. In order to accommodate changes in the perimeter of the upper portion it is therefore split vertically and adjacent spans allowed to overlap by a variable amount using an auxiliary float moored some way along the upper portion.
REFERENCES:
patent: 3289415 (1966-12-01), Merrill
patent: 3921407 (1975-11-01), Neal
patent: 4089178 (1978-05-01), Kinase et al.
patent: 4172751 (1979-10-01), Mougin
Ocean Industry, Mar. 1973, pp. 28-29.
Match, Oct. 30, 1976.
Corbin David H.
I.T.I. Limited
Kersey George E.
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