Patent ID: 7864062

Claim:
An apparatus for detecting a change in a specific gravity of a fluid surrounding the apparatus, the apparatus comprising: a housing having a plurality of openings for allowing the fluid to enter the housing, said housing including a top; a first floatation device having a first specific gravity, said first floatation device being located within said housing wherein said first floatation device includes a magnet and wherein said first floatation device can move freely within the housing in response to a change in the specific gravity of the fluid; a second floatation device having a second specific gravity, said second floatation device being located within said housing in proximity with said first floatation device wherein said second floatation device includes a magnet aligned to have the same polarity as the magnet of said first floatation device and wherein said second floatation device can move freely within the housing in response to a change in the specific gravity of the fluid; a switch fixedly attached to said top wherein said switch has an open state and a closed state wherein when one of said magnets is in proximity to the switch, the switch is in a closed state and wherein when both of said magnets are in proximity to said switch, the switch is in an open state; and a signaling device coupled to the switch wherein said signaling device is activated when the switch is in the closed state.