US 11,655,008 B2
Self-righting trimaran
Colin Sinclair Angus, Victoria (CA); and Julie Rachel Angus, Victoria (CA)
Assigned to Open Ocean Robotics Inc., Victoria (CA)
Appl. No. 17/48,060
Filed by Open Ocean Robotics Inc., Victoria (CA)
PCT Filed Apr. 16, 2019, PCT No. PCT/CA2019/050472
§ 371(c)(1), (2) Date Oct. 15, 2020,
PCT Pub. No. WO2019/200473, PCT Pub. Date Oct. 24, 2019.
Claims priority of provisional application 62/658,979, filed on Apr. 17, 2018.
Prior Publication US 2021/0094658 A1, Apr. 1, 2021
Int. Cl. B63B 43/04 (2006.01); H02S 10/40 (2014.01); B63B 79/10 (2020.01); B63B 1/12 (2006.01); B63B 5/00 (2006.01)
CPC B63B 43/04 (2013.01) [B63B 1/125 (2013.01); B63B 5/00 (2013.01); B63B 79/10 (2020.01); H02S 10/40 (2014.12); B63B 2209/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A watercraft vessel having a first end and a second end opposite the first end, the vessel having opposing lateral sides extending between the first and second ends, the vessel comprising:
a hull; and
a structure attached to the vessel and comprising two sides extending upwardly from the opposing lateral sides, extending outwardly beyond the vessel, and thereabove curving inwardly until the two sides are above the vessel nearer to the first end than the second end, such that the structure presents an inherently unstable shape to cause, in conjunction with the hull at the second end, self-righting of the vessel when inverted, the shape being unchangeable.