A system and method of pumping liquified gas. Applicants systems includes a liquified
gas storage vessel and a smaller high pressure high pressure liquified gas storage
cylinder. Applicant provides a pump between the two vessels for pumping the liquified
gas from one vessel to the other. Applicants system also includes at least one
heat exchanger through which the liquified gas passes as it is pumped from one
vessel to the other, which heat exchanger cools the liquified gas that is being
pumped to a temperature typically below the vaporization point of the gas.
