Patent ID: 8640468

Claim:
A pressurized gas supply, comprising: a pressurized gas reservoir; a pressure reducer fluidly coupled to the pressurized gas reservoir, the pressure reducer configured to reduce a pressure of gas received from the pressurized gas reservoir to a predetermined output pressure (P O ) at a predetermined mass flow rate (F O ); and a gas mixture releasably held within the pressurized gas reservoir at a starting pressure (P S ) and at a starting temperature (T S ), the gas mixture comprising: a warming gas having a positive Joule-Thomson (JT) coefficient at T S and over a pressure range P S to P O ; and a cooling gas having a negative JT coefficient at T S and over the pressure range P S to P O , wherein cooling of the cooling gas at least partially offsets warming of the warming gas when the gas mixture is released by the pressurized gas supply to achieve a predetermined gas output temperature (T O ); wherein the gas received from the pressurized gas reservoir by the pressure reducer is output from the pressure reducer as the gas mixture output from the pressurized gas supply at P O and at T O , wherein T O is substantially equivalent to T S , wherein the gas mixture output from the pressurized gas supply is held at a substantially constant mass flow rate during operation of the pressurized gas supply, and wherein an outlet of the pressured gas reservoir is configured to fluidly couple to an inlet of the pressure regulator by a first flow passage, and an outlet of the pressure regulator is fluidly coupled to an inlet of a gas-consuming device by a second flow passage.