Patent ID: 8418689
Filing Date: 2013-04-16
Classification: B01F,B63C

Abstract:
1. An apparatus for use during open system underwater diving, comprising: an air supply which provides a supply of air along a supply conduit; a regulator adapted for engagement with a diver's mouth to receive air from the supply conduit during an inhale cycle and to direct a mixture of water and exhaust air away from the diver along an exhaust conduit during an exhale cycle, wherein the regulator comprises an air chamber and an exhaust chamber separated by a one-way stop valve, wherein water pressure in the exhaust chamber closes the stop valve during said inhale cycle and wherein the stop valve opens during an exhale cycle so that said mixture of exhaust air and water flow out a port of said exhaust chamber; an air/water separator coupled to the exhaust conduit which separates the exhaust air from the water in said mixture and directs the separated exhaust air along an exhaust air conduit; and a bubble diffuser coupled to the exhaust air conduit which passes the separated exhaust air as a fine mist of bubbles into the surrounding water, the bubble diffuser located on a tank of the air supply adapted to be mounted to a back of the diver.