Ships – Ballasting – Water tanks
Patent
1983-12-14
1986-04-15
Blix, Trygve M.
Ships
Ballasting
Water tanks
114265, 114122, B63B 4306
Patent
active
045820147
ABSTRACT:
A vessel, for example a semi-submersible is provided with at least a chamber for stabilizing it against any or all of heave, roll and pitch. The chambers are mounted on or in the vessel and disposed to lie at least partly below the surface of the water. Valves are provided for controlling the buoyancy of the chambers. Each valve has a first position in which the respective chamber is connected to atmosphere to permit air to enter or leave the chamber, and a second position in which the chamber is not so connected.
REFERENCES:
patent: 1220551 (1917-03-01), Powell
patent: 2889795 (1959-06-01), Parks
patent: 3391666 (1968-07-01), Schuller, Jr.
patent: 3537412 (1970-11-01), Henderson
patent: 4176614 (1979-12-01), Goss et al.
Blix Trygve M.
Swinehart Edwin L.
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