초록 ▼

This disclosure features a permeation storage chamber in a tube having a first membrane delivering a permeate flow into an intermediate chamber. This chamber delivers flow from a second membrane. The intermediate chamber delivers surplus permeate out through a pressure regulator, or a drain tube. Pr

This disclosure features a permeation storage chamber in a tube having a first membrane delivering a permeate flow into an intermediate chamber. This chamber delivers flow from a second membrane. The intermediate chamber delivers surplus permeate out through a pressure regulator, or a drain tube. Pressure stabilization at the second membrane enables constant permeation discharge, avoiding pressure or temperature dependent flow rate charges.

대표청구항 ▼

[ What is claimed is:] [1.] A method of providing a controlled rate of flow from a supply of stored chemical to enable provision of a controlled flow rate of a permeable gas comprising the steps of:(a) storing the supply of stored chemical in a closed storage chamber;(b) delivering the stored chemic

[ What is claimed is:] [1.] A method of providing a controlled rate of flow from a supply of stored chemical to enable provision of a controlled flow rate of a permeable gas comprising the steps of:(a) storing the supply of stored chemical in a closed storage chamber;(b) delivering the stored chemical supply from the storage chamber through a first permeable membrane providing permeate therethrough at a first rate;(c) directing the flowing permeate delivered at a first rate to a second permeable membrane and therethrough at a second rate which is less than the first rate; and(d) regulating the pressure of the permeate between the first and second permeable membranes.