Inflatable buoyancy device with water-dependant triggering...

Buoys – rafts – and aquatic devices – Buoy – Marker buoy

Reexamination Certificate

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Details

C441S008000

Reexamination Certificate

active

11447410

ABSTRACT:
This invention is directed toward a device which provides buoyancy to objects with negative buoyancy in water. The invention comprises a water-sensitive trigger which, when activated, causes a compressed gas to exit a canister and enter a balloon, which expands, thereby causing the object to float, in cases where the device is attached to an item on a boat, or rise to the surface, in cases where the device is attached to a sunken object. There are a number of variable characteristics, including canister size, trigger fuse length, balloon configuration, and housing material that allow a user tremendous flexibility in selecting a proper size of the invention for the user's intended purpose. Other iterations of the invention provide breathing air for underwater purposes and means of keeping cars, boats, airplanes, etc., floating when they fall into water.

REFERENCES:
patent: 3035285 (1962-05-01), Squires, Jr.
patent: 3509772 (1970-05-01), Blair
patent: 4493664 (1985-01-01), Dale
patent: 5030152 (1991-07-01), Carr et al.
patent: 5156562 (1992-10-01), Pearson et al.
patent: 5163858 (1992-11-01), Sumrall

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