Buoys – rafts – and aquatic devices – Rafts – With shelter
Patent
1995-06-30
1999-10-19
Sotelo, Jesus D.
Buoys, rafts, and aquatic devices
Rafts
With shelter
114348, B63B 3558
Patent
active
059678690
ABSTRACT:
A self-righting inflatable life raft having a raft body formed by inflatable sidewalls, a floor above a bottom of the sidewalls, a line of rotation of the raft defined by the outer perimeter of the raft body about which the raft body rotates on the surface of the water when moved from an inverted position to an upright position. The center of gravity of the raft body is spaced a first predetermined distance from the line of rotation and displaced horizontally from the line of rotation when the raft is inverted. At least three inflatable spaced apart tube members extending upwardly and outwardly from the perimeter of the raft body at an angle from the perpendicular to the raft body to a sufficient degree and having a buoyancy sufficient such that the moment exerted on the raft about the line of rotation by the weight of the raft acting through its center of gravity causes the raft body to topple by gravity to an upright position. A tie fixed to and extending between two points on the raft limits separation of the two points to the length of the tie during and after inflation of the tube members, which two points are chosen to inhibit distortion or collapse of the tube members from their desired positions when inflated.
REFERENCES:
patent: 4998900 (1991-03-01), Wright
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