Buoys – rafts – and aquatic devices – Rafts – Inflatable
Patent
1998-10-19
2000-06-27
Avila, Stephen
Buoys, rafts, and aquatic devices
Rafts
Inflatable
441 42, 441 38, 441 80, B63B 3558
Patent
active
060800275
ABSTRACT:
Compact and light weight deployable flotation devices with improved elasticity, tensile strength, shear strength, and puncture resistance using higher quality materials and sequencing of layers of polymer coating with greater mechanical strength in outer layers, and improved impermeability to gas leakage from within. The flotation devices are folded in containers with the containers having an integral gas supply cannister for use in a vehicle or vessel and for portability. The flotation devices are deployed by inflation by means of mechanical pull cord, automatically by float switches, hydrostatic release, electronic panic buttons, or switches used with a pyrotechnic release valve mechanism, or by pyrotechnic inflators. Restraining mechanisms form part of inflatable bag construction for permanent mounting in a vehicle or vessel. A protective cover enshrouds the inflatable bag and its integral restraining mechanism, the shroud being able to expand at the end of bag inflation.
REFERENCES:
patent: 831891 (1906-09-01), Quarterman
patent: 3336613 (1967-08-01), Wales
patent: 4355987 (1982-10-01), Miller
patent: 4458618 (1984-07-01), Tuffier
patent: 4635581 (1987-01-01), Scheurer
patent: 4685890 (1987-08-01), Edwards
patent: 4843992 (1989-07-01), Babikian
patent: 5284453 (1994-02-01), Kun
patent: 5411425 (1995-05-01), Rinker
patent: 5516233 (1996-05-01), Courtney
Avila Stephen
Walsh Patrick J.
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