Patent ID: 6581591
Filing Date: 2003-06-24
Classification: B63C

Abstract:
An emergency breathing apparatus for breathing under water comprising a single flexible tube having an inlet adjacent one end of said tube which is arranged to be maintained above water level and open to ingress of ambient air and adjacent the other end of said tube in close proximity a mouthpiece and a valve operable by a user to inhibit flow of water into the breathing apparatus in a closed condition and to permit breathing when in an open condition, wherein said valve comprises a bored stem slidingly fitting with a cylindrical valve body and being slidable by an operator between the closed condition and the open condition where air can be breathed through said valve stem, perforations of the end cap providing an air communication path between an interior of the flexible tube and the mouthpiece when the valve is in the open condition and the perforations being sealed to said vavle stem when the valve is in the closed condition.