Flotation apparatus

Details Flotation apparatus Flotation apparatus

2007-08-28

2007-08-28

Olson, Lars A. (Department: 3617)

Buoys, rafts, and aquatic devices

Buoy

Marker buoy

C441S008000

Reexamination Certificate

active

11300523

ABSTRACT:
A method and apparatus is provided to support a plurality of objects such as keys with an inflatable apparatus when the inflatable apparatus is exposed to a body of water. In one embodiment, an inflatable apparatus provides an attachment member such as a key ring to attach objects such as keys to the inflatable apparatus. The inflatable apparatus is capable of inflating from a compact shape to an expanded shape upon contact with water. In the expanded shape, the inflatable apparatus provides sufficient buoyancy to support the objects coupled therewith and float the objects to the surface of the water for retrieval by a user. In situations where the weight of the object exceeds a buoyancy limit, the inflatable apparatus can extend a marker buoy to assist in the retrieval of the objects. In other embodiments, the inflatable apparatus includes a wireless transmit a wireless location signal.

REFERENCES:
patent: 2642693 (1953-06-01), Broady
patent: 3071787 (1963-01-01), Burker
patent: 3210785 (1965-10-01), Ward
patent: 4586456 (1986-05-01), Forward
patent: 4981453 (1991-01-01), Krishan et al.
patent: 5218366 (1993-06-01), Cardamone et al.
patent: 5857881 (1999-01-01), Zippel, Sr.
patent: 6036559 (2000-03-01), Arnold et al.

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