Importance

Loading Importance Indicators...

Abstract

A gas pressure operated dispensing method and apparatus for dispensing fluids including a first container as a primary fluid source, a second container as a reserve fluid source, a first gas line connected to the first container and a second gas line connected to the second container, a gas pressure source connected to the first and second gas lines for supplying a pressurized gas thereto, a first change over valve and a second change over valve disposed in the first gas line and the second line, respectively, a supply line for introducing a fluid into the second container, a discharge line for discharging a fluid from the first container, a fluid line communicating with the supply line and the second container at one end and the discharge line and the first container at the other end, the fluid line containing a third valve, and vent line selectively connectible to the second gas line through the second change over valve when the gas pressure source is separated from the second gas line by the second change over valve.

Loading the Abstract Image...

First Claim