Pumps – Processes
Patent
1998-01-09
2000-08-29
Thorpe, Timothy S.
Pumps
Processes
417387, F04B 1924
Patent
active
061098817
ABSTRACT:
A gas driven pump controls the process fluid pressure within a filtering and dispensing system. A pressure controller in the pump controls gas pressure within an enclosed chamber in the pump. The gas chamber is adjacent a floating piston that rests atop a layer of incompressible fluid in a fluid chamber. The incompressible fluid connects to a diaphragm head. As the gas pressure is increased, the floating piston will transmit that pressure through the incompressible fluid that then forces a relative displacement in the process fluid flow. A feedback system used in conjunction with the gas driven pump controls the gas pressure in order to regulate the process fluid flow.
In addition, a positive displacement compensator can be used in conjunction with the gas driven pump in order to further regulate the process flow.
REFERENCES:
patent: 4436491 (1984-03-01), Ishiyama et al.
patent: 5056036 (1991-10-01), Van Bork
patent: 5165869 (1992-11-01), Reynolds
patent: 5167837 (1992-12-01), Snodgrass et al.
patent: 5516429 (1996-05-01), Snodgrass et al.
patent: 5772899 (1998-06-01), Snodgrass et al.
Gibson Gregory M.
Snodgrass Ocie T.
Hubbard, Esq. John Dana
King, Esq. Timothy J.
Thorpe Timothy S.
Torrente David J.
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