Patent ID: 9719504
Date: 2017-08-01
CPC Classifications: B01D,F04B,G05B,Y10T

Claim:
1. An automated pump system for removing gas from a process fluid to be dispensed, said pump system comprising: a process fluid reservoir having: a driving means indirectly coupled to said outlet for driving the process fluid into or out of said process fluid reservoir; valves coupled to said inlet and to said outlet for permitting process fluid flow into or out of said process fluid reservoir, and coupled to said vent to remove gas out of said process fluid reservoir and into the drain; a sensor for providing a signal corresponding to a parameter in said pump system related to the presence of gas in said process fluid reservoir; and a processor coupled to said driving means, to said sensor and to said valves, said processor using said signal to automatically control said valves and said driving means to force any gas in said process fluid reservoir through said vent and into the drain with no, or a minimum of, process fluid being passed through said vent and into the drain.