Patent ID: 7069730

Claim:
A system for dispensing cryogenic fluids comprising: a) a bulk tank containing a supply of cryogenic liquid; b) a pump in communication with the bulk tank; c) a storage tank selectively in communication with the bulk tank so as to receive cryogenic liquid therefrom; d) a vaporizer selectively in communication with the pump, said vaporizer receiving cryogenic liquid from the bulk tank via the pump so that a cryogenic gas is produced and said vaporizer selectively communicating directly with the storage tank so as to condition the liquid therein; e) a bank of cascaded storage cylinders selectively in communication with the vaporizer so as to receive gas therefrom for dispensing; and f) a pressurizing cylinder separate and distinct from the bank of cascaded storage cylinders and selectively in communication with the vaporizer so as to receive cryogenic gas therefrom, said pressurizing cylinder pressurizing said storage tank with gas so that the liquid in the storage tank may be dispensed therefrom while gas is simultaneously dispensed from the bank of cascaded storage cylinders.