Patent ID: 9074731
Filing Date: 2015-07-07
Classification: F17D,Y02E,Y10T

Abstract:
1. A gas monitoring and oxygen supply control system, comprising: a flame-proof and explosion proof housing; a gas monitoring sensor system enclosed in said housing, said sensor system including a sensor controller, a plurality of gas sensors, and a CPU; air sampling pipes in fluid communication with said gas sensors and with the atmospheres to be sampled ; input sampling ports disposed on said air sampling pipes and exposed to the atmospheres to be sampled; at least one exhaust pipe for venting gases to a select atmosphere outside said housing; flame-proof port assemblies disposed through a wall of said housing separating said sensor system from an outside atmosphere and through which said air sampling pipes and said exhaust pipe are disposed; at least one pump operatively connected to said air sampling pipes so as to provide both suction and exhaust, said pump electronically connected to and controlled by said CPU; a plurality of valves disposed on said air sampling pipes and electronically coupled to and controlled by said CPU; a transceiver coupled to said CPU and to a feedthrough radio antenna disposed through a side of said housing for communicating bi-directionally with one or more handsets; and an oxygen air piloted release valve in fluid communication with a pressurized oxygen tank, a pneumatic pump in fluid communication with said air piloting release valve through an air piloting signal line, such that said pneumatic pump can send an air-piloting signal to said air piloted release valve to release oxygen from said pressurized oxygen tank, and wherein when said sensor system detects a too low oxygen level, said CPU effects an automated release of oxygen by initiating an instruction to said pneumatic pump to send an air piloting signal to said air piloting release valve, thereby maintaining the oxygen content of the breathable air within a defined space within the breathable range of 18.5-23% oxygen by volume.