Pressure regulating system

Details Pressure regulating system Pressure regulating system

1993-09-08

1994-10-25

Nilson, Robert G.

Fluid handling

Processes

Carbonated beverage handling processes

1374875, 137571, G05D 1620

Patent

active

053579968

ABSTRACT:
A fluid pressure control system comprising a first chamber, the pressure in which is to be controlled, a second chamber and a valve means for controlling communication between the first and second chambers. A controller is arranged such that, if the pressure in the first chamber differs from a required pressure, the controller i) operates the valve means to close off communication between the first and second chambers, ii) varies the pressure in the second chamber, iii) opens communication between the first and second chambers to deliver a discrete pressure step to the first chamber, and, iv) repeats i) to iii) until the pressure in the first chamber reaches a required level.

REFERENCES:
patent: 2757067 (1956-07-01), Cornell
patent: 4253480 (1981-03-01), Kessel
patent: 4261509 (1981-04-01), Anders
patent: 4504194 (1985-03-01), Holden
patent: 4690163 (1987-09-01), Steinemann
patent: 4961441 (1990-10-01), Salter
patent: 5020564 (1991-06-01), Thoman

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