Patent ID: 8613635

Claim:
A fluid activated retrieval device for retrieving an object from a fluidic medium comprising: a hollow base having a first cavity formed therein, wherein the hollow base includes, at least one port disposed along an outer surface of the hollow base, the at least one port configured to provide passage of the fluidic medium to the first cavity, a diaphragm disposed along the first cavity and proximate to the at least one port, the diaphragm configured to partially flex thereby selectively allowing the fluidic medium to enter the first cavity, and an anchor disposed along the first cavity for securing a line; a deployable float housing removably attached with the hollow base, the deployable float housing having a second cavity formed therein, wherein the deployable float housing includes, a buoyant chamber disposed along a distal end of the second cavity, a spool for receiving the line, the spool disposed within the second cavity and attached with the deployable float housing, wherein the spool is configured to unwind the line without spinning; and a reactant disposed in the first and second cavities, the reactant responsive to the fluidic medium such that when the reactant comes into contact with the fluidic medium a reactant gas is generated.