Ships – Ballasting – Antirolling
Patent
1988-05-09
1990-03-06
Peters, Jr., Joseph F.
Ships
Ballasting
Antirolling
114126, 114245, 114311, B63B 3900
Patent
active
049056220
ABSTRACT:
A system for reducing roll of vessels comprises at least one and preferably a pair of hydrofoil devices suspended from lines rigged on each side of the vessel, preferably from outrigger booms. The devices are asymmetrical foils which are arranged to provide a downwardly acting hydrodynamic force as the devices move with respect to the water. The center of the hydrodynamic force, the center of gravity of the device, and the suspension line attachment being in vertical alignment to provide a balanced foil. The devices function when the vessel is under way and when the vessel is stationary. The hydrodynamic force provides tension in the suspension lines which serves to damp the tendency of the vessel to roll while under way. The hydrodynamic force assures that the devices will not suddenly lose their damping effect or loose control and jerk or breach. When not under way, rolling is damped by differential resistance of the devices to upward movement through the water.
REFERENCES:
patent: 1299186 (1919-01-01), Imaizumi
patent: 2561539 (1951-07-01), Seward
patent: 2561599 (1951-07-01), Seward
patent: 2589312 (1952-03-01), Wilcoxon
patent: 3062171 (1962-11-01), Somerville
patent: 3065722 (1962-11-01), Green
patent: 3226114 (1965-12-01), Swider
patent: 3260232 (1966-07-01), Douglas
patent: 3372666 (1968-03-01), Baker
patent: 3505968 (1970-04-01), Gorman
patent: 3531761 (1970-09-01), Tickell
patent: 3560912 (1971-02-01), Spink
patent: 3589324 (1971-06-01), Hoffman
patent: 3952680 (1976-04-01), Griffin
patent: 4019453 (1977-04-01), Boswell
patent: 4061102 (1977-12-01), Bissett
patent: 4748927 (1988-06-01), Bujacich
Bartz Clifford T.
Kane, Jr. Daniel H.
Peters Jr. Joseph F.
LandOfFree
Marine anti-roll device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Marine anti-roll device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Marine anti-roll device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-40243