Ships – Building – Freighters
Patent
1980-08-21
1983-06-28
Blix, Trygve M.
Ships
Building
Freighters
114125, B63B 2512
Patent
active
043899595
ABSTRACT:
An improved tanker vessel for carrying a plurality of liquid cargoes each having a specific gravity which is less than that of sea water. The vessel includes a hull comprising a bottom and sides, a top deck, at least one cargo compartment disposed between the top deck and the hull bottom for storing the liquid cargo, and a main liquid cargo charging and discharging system coupled to the cargo compartment for charging and discharging the compartment. The improvement comprises an additional liquid cargo charging and discharging system coupled to the cargo compartment which includes a longitudinal pipe and transversely disposed branch lines coupled to the longitudinal pipe. The branch lines include a suction opening disposed in and opening into the compartment at a distance above the hull bottom which is approximately equal to H(S.sub.w /S.sub.c)-0.10H, where H represents the distance from the bottom of the vessel to its waterline, S.sub.w represents the specific gravity of sea water, and S.sub.c represents the specific gravity of the heaviest liquid cargo which the vessel is adapted to carry.
REFERENCES:
patent: 2314555 (1943-03-01), Preuss
patent: 3307512 (1967-03-01), Fell
patent: 3785321 (1974-01-01), Backstrom
patent: 3859444 (1975-01-01), Warner
patent: 3868921 (1975-03-01), Seymour
patent: 3926135 (1975-12-01), De Gregorio
Blix Trygve M.
Brahan Thomas J.
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