Ships – Building – Freighters
Patent
1978-06-09
1980-12-30
Kazenske, Edward R.
Ships
Building
Freighters
114256, 220 22, B63B 2508
Patent
active
042416833
ABSTRACT:
A tank vessel for the transportation of liquid cargo having a specific gravity which is less than that of water. The vessel includes a hull comprising a bottom and sides, a top deck, and at least one transverse bulkhead disposed within the hull forming a plurality of watertight cargo compartments between the top deck and the hull bottom. The improvement of the invention comprises a watertight horizontal bulkhead disposed within the hull between the top deck and the hull bottom above the waterline of the tank vessel and at a distance above the hull bottom which is less than or equal to H(S.sub.w /S.sub.c), where H represents the vertical height of the waterline of the vessel above the hull bottom, S.sub.w represents the specific gravity of water, and S.sub.c represents the specific gravity of the liquid cargo. The bulkhead forms separate upper and lower watertight liquid-receiving tanks within the compartment above and below the waterline of the vessel and the upper tanks have a vertical height which is less than that of the lower tanks.
REFERENCES:
patent: 2696185 (1954-12-01), Snoddy
patent: 3640237 (1972-02-01), Phelps
patent: 3680729 (1972-08-01), Bonavent
patent: 3745960 (1973-07-01), Devine
patent: 3906880 (1975-09-01), Hebert
Kazenske Edward R.
Keen D. W.
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