Patent ID: 7350521

Claim:
An oxygen concentrator system comprising (a) a portable oxygen generator unit comprising a portable air separation device for the generation of a non-humidified oxygen-rich gas, a first gas pump including means to supply air to the portable air separation device, a first motor adapted to drive the first gas pump, a rechargeable power supply system adapted to provide power to drive the first motor, a first connector adapted to provide recharging of the rechargeable power supply system, a first flow coupling adapted to receive a humidified oxygen-rich gas, piping means adapted to combine the non-humidified oxygen-rich gas and the humidified oxygen-rich gas to form a humidified oxygen-rich gas product, and an oxygen-rich gas product delivery port; and (b) a stationary base unit adapted to couple with the portable oxygen generator unit, wherein the stationary base unit comprises a stationary air separation device and a humidifier for generating the humidified oxygen-rich gas, a second gas pump including means to supply air to the stationary air separation device, a second motor adapted to drive the second gas pump, a second flow coupling adapted to connect with the first flow coupling, piping to transfer the humidified oxygen-rich gas to the second flow coupling, a stationary power supply system adapted to provide power to the secondary motor, and a second connector adapted to connect with the first connector to provide recharging of the rechargeable power supply system in the portable oxygen generator unit when the units are coupled.