It seems that most people’s imagined view of drowning is mistaken…victims don’t thrash and yell, they simply go motionless and sink.
Todays invention is a way for anyone getting into serious difficulties in the water to draw attention to that fact and thus summon help.
Swimmers could purchase a light, quoit-shaped ring, to be worn around the neck. This would include an elastic section to make it easy to put on, without being obstructive to swimming. It would also be brightly coloured and slightly buoyant in fresh, and therefore salt, -water.
When the wearer found themselves about to drown, their face would descend through the ring floating on the surface. Biting the ring anywhere would activate a bright flashing light within the ring and a loud squawking noise, audible even over the roar of breakers.