Patent ID: 6637212
Filing Date: 2003-10-28
Classification: F17C

Abstract:
A gas delivery system for delivering an initially liquefied form of a gas from at least one storage container to an endpoint, said system comprising:a vaporization unit comprising an inlet, an outlet, a vaporizing means for converting said liquefied gas having a concentration of soluble impurities to the vapor phase, and a heating means for heating said vaporizing means to a temperature sufficient to completely vaporize said liquefied gas and soluble impurities, wherein said vaporizing means is capable of completely vaporizing said liquefied gas and said soluble impurities to form a vapor phase product before said liquefied gas and said soluble impurities accumulate in said vaporization unit, wherein the level of said impurities in said vapor phase product is substantially equivalent to the level of said impurities in said liquefied gas; a first delivery conduit for delivering said liquefied gas from said at least one storage container to said vaporization unit; and a second delivery conduit for delivering said vapor phase product from said vaporization unit to said endpoint.