Patent ID: 6814092
Filing Date: 2004-11-09
Classification: B08B

Abstract:
A bulk container conditioning system, comprising:(A) a bulk container for storing a charge of an ultra high purity liquified gas, the container having at least one wall with an interior surface bounding a hollow interior; (B) a conditioning quantity of the ultra high purity liquified gas for disposition in said interior of said container so that a gas space is created above the level of said conditioning quantity of liquified gas; (C) said system being arranged so that a temperature difference imposed on said container causes said conditioning quantity of liquified gas to produce vapor in said gas space that condenses on said interior surface of said container, without the use of a condenser, to produce a liquid reflux for washing the interior surface of said container to condition said container so that said container is ready to accept for storage therein the charge of ultra high purity liquified gas; and (E) a valve arranged to be opened for enabling at least a portion of said vapor to vent from said gas space.