Patent ID: 6023933
Filing Date: 2000-02-15
Classification: F17C,Y10S

Abstract:
A method of pressurizing a high purity gas to ultra high pressure while maintaining the high purity of the gas by isochoric vaporization, comprising the steps of;a) providing a high purity gas in a liquefied physical state at a first pressure;b) introducing said high purity gas in a liquefied physical state into a vaporization vessel at substantially said first pressure;c) sealing said vaporization vessel after it is at least partially filled with said high purity gas in a liquefied physical state; andd) heating said vaporization vessel and said high purity gas in a liquefied physical state which at least partially fills said vessel to vaporize said high purity gas and to pressurize said high purity gas to said ultra high pressure while said vaporization vessel is sealed.