Patent ID: 7261606

Claim:
An apparatus comprising: a body having an outer wall defining a first gas chamber and a second gas chamber separated by an inner wall; a water pressure activated latching valve having a sealing end disposed in the first gas chamber, wherein the sealing end is configured to seal an opening disposed in the inner wall to prevent gas disposed in the first gas chamber from escaping into the second chamber until the pressure activated valve is activated by water pressure; an inflatable membrane disposed in the second chamber, wherein when the pressure activated latching valve is activated by water pressure communicated though an opening in the outer wall to an exterior side of the membrane, the pressurized gas disposed in the first gas chamber is communicated though the opening in the inner wall to inflate the membrane, wherein in response to the pressurized gas, the inflatable membrane extends outside the body though the opening in the outer wall; and a transceiver configured to provide a location wireless signals in response to an external input or activation of inflatable membrane.