Ships – Ballasting – Water tanks
Patent
1985-12-30
1987-12-29
Nase, Jeffrey V.
Ships
Ballasting
Water tanks
114 74R, B63B 4306
Patent
active
047153091
ABSTRACT:
A ballast arrangement includes a number of tanks and a pump connected to a sea-chest and having a discharge conduit extending to a level above the top-most tank. A distribution conduit extends to the various tanks and an overflow pipe is connected to the discharge conduit and reaches to a further level, above the first mentioned level, where also an evacuation pipe is connected. The further level will determine the static pressure which may act in any of the associated tanks. The tanks may be connected to the suction side of the pump through by-pass conduits, and a two-way valve is designed so the pump can communicate only with either the sea-chest or with the by-pass conduits.
REFERENCES:
patent: 1710006 (1929-04-01), Peter
patent: 4292909 (1981-10-01), Conway
patent: 4546719 (1985-10-01), Collins et al.
Gotaverken Arendal AB
Nase Jeffrey V.
Salmon Paul E.
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