EP0103988A2
Expired / Lapsed
EP
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Method of for monitoring concentration of gas in a liquid
Assignee: Heineken UK Ltd
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Filing: 1983-08-18
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Granted: —
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Expires: 2003-08-18
Abstract
Abstract There is described a method of and apparatus for monitoring the concentration of gas in a liquid. The apparatus includes a semi-permeable diaphragm across the face of which the liquid flows. Gas contained in the liquid permeates through the diaphragm into a chamber and the pressure within the chamber is measured. This pressure is representative of the concentration of gas in the liquid and permits control of the quantity of gas injected, In particular there is described a method and apparatus for monitoring the concentration of two different gases which may be dissolved in a flowing liquid.
Inventors
- 👤 James Kesson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 23:26
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
58 words
A method of monitoring the concentration of gas in a liquid comprising passing said liquid across a semi-permeable membrane in order that gases in the liquid may permeate through the membrane into a chamber, and measuring the pressure of the permeated gases, evacuating said chamber after a predetermined period, and again measuring the pressure of the permeated gas.
Claim 2
Independent Claim
58 words
A method of monitoring the concentration of gas in a liquid comprising passing said liquid across a semi-permeable membrane in order that gases in the liquid may permeate through the membrane into a chamber, and measuring the pressure of the permeated gases, evacuating said chamber after a predetermined period, and again measuring the pressure of the permeated gas.
Claim 3
Dependent Claim
19 words
A method as claimed in Claim 1 wherein said measured pressure is corrected for the temperature of the liquid.
Claim 4
Dependent Claim
57 words
Apparatus for monitoring the concentration of gas in a liquid comprising a semi-permeable membrane fixed in a housing and arranged to have one side in contact with said liquid, means defining a chamber on the side of said membrane remote from the liquid, means for evacuating said chamber and means for determining the pressure in said chamber.
Claim 5
Dependent Claim
57 words
Apparatus for monitoring the concentration of gas in a liquid comprising a semi-permeable membrane fixed in a housing and arranged to have one side in contact with said liquid, means defining a chamber on the side of said membrane remote from the liquid, means for evacuating said chamber and means for determining the pressure in said chamber.
Claim 6
Dependent Claim
45 words
Apparatus as claimed in Claim 3 wherein the pressure of the permeated gas is used to generate a pressure representative signal which is passed to a control unit which in turn produces a control signal to control the quantity of gas injected into the liquid.
References Cited (Backward Citations)
No citation records indexed.
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