Buoys – rafts – and aquatic devices – Water rescue or life protecting apparatus – Personal flotation device
Patent
1993-07-30
1994-12-20
Mitchell, David M.
Buoys, rafts, and aquatic devices
Water rescue or life protecting apparatus
Personal flotation device
441122, B63C 916
Patent
active
053742125
ABSTRACT:
Personal flotation equipment has a housing securable on a wearer, the housing having a gas chamber containing gas under pressure and a flotation bag chamber containing a flexible inflatable bag having an inlet. The housing also has a passage extending from the gas chamber to the flotation bag chamber, the inflatable bag inlet being connected to the passage. A normally closed valve in the passage prevents flow of the gas under pressure from the gas chamber through the passage into the inflatable bag. A cover is secured to the housing and retains the inflatable bag in the bag chamber, the cover being manually operable to cause the cover to cease retaining the inflatable bag in the bag chamber. The cover carries a valve actuator which opens the valve when the cover is manually operated to cease retaining the inflatable bag in the bag chamber whereby, when the cover is so operated, gas under pressure passes from the gas chamber through the passage into the bag to inflate the bag and thereby cause the bag to extend from the bag chamber in an inflated condition to provide buoyancy for the wearer.
REFERENCES:
patent: 2703891 (1955-03-01), Mayer
patent: 2895147 (1959-07-01), Desjarlais et al.
patent: 3046575 (1962-07-01), Davis et al.
patent: 4482333 (1984-11-01), Geri et al.
patent: 4498880 (1985-02-01), Curley
patent: 4629436 (1986-12-01), Stewart et al.
Avila Stephen P.
Mitchell David M.
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