Patent ID: 8248251

Claim:
A personal water safety device, comprising: a barrel portion, comprising: a button installed in the barrel portion comprising a head portion, the button protruding out of the head portion; and a cylinder connected to the button, the cylinder formed such that water enters the cylinder in response to the button being pressed, and the cylinder being a conducting cylinder that determines when water has filled the barrel portion, wherein the button is narrower than the barrel portion, and water enters the cylinder through a gap between the button and the barrel portion; and a base part connected to the barrel portion, the base part comprising: a cutout being in a bottom surface, to accommodate the bridge of the nose of a swimmer; a timer connected to the cylinder, to measure an elapsed time when electrical conductivity of interior of the cylinder is in a predetermined range; and an alarm electrically connected to the timer, to generate an alarm upon a condition that the measured time exceeds a predetermined time limit.