Patent ID: 6103182
Filing Date: 2000-08-15
Classification: B22D

Abstract:
Apparatus for dispensing a liquid material from a reservoir of said liquid material, said apparatus comprising a liquid material to be dispensed, a first vessel which acts as an intermediate chamber configured to receive said liquid material from said reservoir, a second vessel which acts as a dispensing chamber configured to receive said liquid material from said intermediate chamber, a first pressurizing means, comprising inert gas, for pressurizing said intermediate chamber, a second pressurizing means, comprising inert gas, for pressurizing said dispensing chamber, a first valve configured to permit said liquid material to be admitted into said intermediate chamber from said reservoir, a second valve configured to permit said liquid material to be admitted into said dispensing chamber from said intermediate chamber, and a duct extending from within said dispensing chamber and configured to dispense said liquid material through said duct from said dispensing chamber by pressurization of said dispensing chamber.