Lightweight breathing device

Claim 1

An air breathing device, comprising a. a main body including a fill port for supplying air to an air supply tank mounted on the breathing device; b. a rotatable cylinder stem defining a first orifice bore, the cylinder stem being mounted on the breathing device and attached to the air supply tank, the first orifice bore being connected to the air supply tank; c. an on-off valve mounted on the cylinder stem and defining a second orifice bore, the first and second orifice bores being adapted to form an air connection upon sufficient rotation of the cylinder stem, thereby turning on and admitting air from the air supply tank to the device; d. an air regulator housing mounted within the main body and connecting from the second orifice bore to a poppet bore cavity; e. an elongate, spring loaded poppet means defining a longitudinal, axial bore, one end of the poppet means seating into an atmospheric bore, and an opposed end of the poppet means, including a poppet head, seating into and sealing the poppet bore cavity, and a poppet stem mounted and secured within the longitudinal, axial bore of the poppet; f. a body portion mounted in the on-off valve and providing an air connection between the valve and the poppet means of the air regulator housing; g. a breathing mouthpiece and exhaust port mounted on the air breathing device, the breathing mouthpiece being air connected through the body portion to the air regulator, housing and the poppet bore cavity, and the exhaust port being air connected to the body portion; and, h. a lever adapted to actuate the stem of the poppet means the poppet stem being connected to the lever through a poppet stem cavity contiguous with the poppet bore cavity and secured in the poppet stem cavity by a shoulder formed on the poppet stem; whereby: i. when the on-off valve is turned on, and a user inhales on the mouthpiece, sufficient suction is produced to unseat the poppet from the poppet bore cavity and admit air to the user from the air supply tank and through the connected first orifice bore, and then through the body portion; ii. when the user exhales on the mouthpiece, the poppet closes and exhaust air passes through the body portion to the exhaust port; and, iii. when the lever is pressed, the poppet will be unseated and release or blow out water and moisture through the body portion and exhaust port.