Patent ID: 8702840

Claim:
A method for managing an oxygen generating system, the oxygen generating system having an oxygen storage tank, an oil-less air compressor, and at least two groups of at least one oxygen generator, the at least two groups of at least one oxygen generator including a first group of at least one oxygen generator and a second group of at least one oxygen generator, the oxygen generating system configured for supplying a sustained flow of a gaseous mixture comprising mostly oxygen, the method comprising: receiving electrical power; sensing a first pressure to be less than or equal to a first startup threshold pressure, said first pressure associated with a gaseous pressure of the oxygen storage tank; completing a first circuit, the first circuit for providing electrical power to a first group of at least one oxygen generator; providing electrical power to the first circuit; providing electrical power to an oil-less air compressor; sensing a second pressure to be less than or equal to a second startup threshold pressure, said second pressure associated with a gaseous pressure of the oxygen storage tank, wherein the second startup threshold pressure is greater than the first startup threshold pressure; completing a second circuit, the second circuit for providing power to a second group of at least one oxygen generator; providing electrical power to the second circuit; sensing a third pressure to be greater than or equal to a first shutoff threshold pressure, said third pressure associated with a gaseous pressure of the oxygen storage tank; opening the first circuit; cutting power to the first circuit; sensing a fourth pressure to be greater than or equal to a second shutoff threshold pressure, said fourth pressure associated with a gaseous pressure of the oxygen storage tank, wherein the second shutoff threshold pressure is greater than the first shutoff threshold pressure; opening the second circuit; cutting power to the second circuit; and cutting power to the oil-less air compressor.