Buoys – rafts – and aquatic devices – Buoy – Marker buoy
Reexamination Certificate
2007-06-19
2007-06-19
Avila, Stephen (Department: 3617)
Buoys, rafts, and aquatic devices
Buoy
Marker buoy
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
Olson Manfred Bradley
Spears Fredrick
Avila Stephen
Hanscom Eric
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