Patent ID: 7699677

Claim:
A profiling float comprising: a float chamber which has an airtight internal space, and which includes a semi-spherical dome integrally formed on a top portion of a spherical body, a diameter of the spherical body being greater than a diameter of the semi-spherical body, a diameter of the spherical body being greater than a diameter of the semi-spherical dome, a fluid storage part provided in the float chamber and storing a fluid for control of buoyancy, a bladder provided at an exterior of the float chamber, wherein the fluid for control of buoyancy is fillable in an interior of the bladder to change a volume thereof, thereby controlling buoyancy acting on the profiling float, a pump mechanism for transferring the fluid for control of buoyancy between the bladder and the fluid storage part, and a driving source for driving the pump mechanism, wherein the pump mechanism comprises a gear pump.