Ships – Displacement-type hull – Multiple hulls
Patent
1984-10-18
1989-06-06
Peters, Jr., Joseph F.
Ships
Displacement-type hull
Multiple hulls
114125, 114 391, B63B 100
Patent
active
048361208
ABSTRACT:
Disclosed is a system for displacing the center of buoyancy from the center of gravity in a capsized craft and maintain the displacement until the craft is substantially re-righted. Buoyancy is provided such that the craft floats high in the water when inverted. Flooding ports and venting ports are opened to allow at least one hull to partially flood, eliminating the buoyancy previously provided by the hull. Elimination of this buoyancy causes a displacement in the overall center of buoyancy which begins a pitch, or roll about the craft's longitudinal axis, which continues until the center of gravity is located directly under the center of buoyancy and the craft is substantially re-righted, although some pumping out of water in the flooded hull will be necessary.
REFERENCES:
patent: 3585955 (1971-06-01), Cella
patent: 3865061 (1975-02-01), Newman
patent: 3954077 (1976-05-01), Piat-Marchand
patent: 4102287 (1978-07-01), Ferris
patent: 4223621 (1980-09-01), Berger
patent: 4227474 (1980-10-01), Ullrich
patent: 4416639 (1983-11-01), Gillmer
High Speed Sailing, p. 83 (1979).
"The Righting of a Tremolino Trimaran", Aaron Wright, pp. 179-203.
"A Real-Life 36-Foot Self-Righting Catamaran", Multihulls, Nov./Dec. 1979, pp. 31-35.
Ayrs 95, Dec. 1982, drawing (Tonga 28 Crew-Rightable).
"Latitude 38", vol. 43, Jan. 1984, 3 page article by Patricia Miller.
Bartz Clifford T.
Peters Jr. Joseph F.
LandOfFree
Self-righting waterborne craft does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-righting waterborne craft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-righting waterborne craft will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-32400