Protective device
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United States of America Patent
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-
Aug 14, 2001
Grant Date -
N/A
app pub date -
Aug 18, 1999
filing date -
Dec 16, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A protective device having a shell structure and being shaped from a plate-shaped material, in particular but not exclusively, adapted for covering of a sub sea structure, such as at least one pipe line (21, 22), a Christmas tree or parts of such constructions. The protective device is designed as a downward open and upwards closed convex container or channel, comprising a substantially plane roof plate (5), e.g., two substantially plane and inclined side walls (3, 4) which may end in an individual foot plate (1, 2). The protective device or parts thereof is (are) designed with a shallow wave structure or with a weakly corrugated structure, the waves having a wave length (1) above 2.5 times the wave-height (h), and where the wave height does not exceed 10 times the thickness (d) of the plate-shaped material. As examples of usages the following may be mentioned: protection of constructions on land, lining of tunnels, building materials and modules for offshore living quarters.
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