Portable breathing apparatus

Abstract

The portable breathing apparatus according to the present invention includes an air tank chargeable with air at the predetermined pressure and portable, a pressure valve member bypassing one portion of air when the pressure of air supplied from the air tank falls less than certain pressure, a regulator valve member converting air induced from the pressure valve member into breathable pressure, thereby regularly supplying the converted air to a mouth, a pressure switching member enabling electric power to be switched on/off by compressed air, induced and bypassed from the pressure valve member, and a vibration means, contactable to a human body, generating vibration at the same time when the electric power of the pressure switching member is switched on, thereby warning lack of compressed air. Thus, the present invention may reduce casualties by timely informing an operator of the time when the carrying air tank is to be supplemented while operating at a crisis and very hectic site such as diving or the fire, and at the same if necessary, to enable the operator to ask for help to another person nearby.

Dependencies are inferred from the claim text.