US3627419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of detection, dosage and the like, of a hydrocarbon in a fluid and apparatus for working such method
Assignee: INTERCOMMUNALE BELGE DE GAZ ET
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Filing: 1968-06-14
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Granted: 1971-12-14
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Expires: 1988-06-14
Abstract
Abstract A method for detecting a hydrocarbon in a carrier liquid wherein a sample of the carrier liquid is diffused in a solvent for the hydrocarbon, and changes in the color of the solvent due to amounts of hydrocarbon dissolved therein are optically measured as an indication of the hydrocarbon on the carrier liquid.
Inventors
- 👤 Victor Carlomon Thevenier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:27
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/18; G01N33/1826; G01N33/1833; B; B32; B32B; B32B27/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A method of detecting a hydrocarbon in a carrier liquid which comprises: placing a solvent for the hydrocarbon in an elongated vertical column, diffusing a sample of the carrier liquid into a first portion of said column containing said solvent for the hydrocarbon and said solvent being immissible with said carrier liquid and said solvent having a specific gravity different from that of said carrier liquid in order to form in said one portion of the column an emulsion of said carrier liquid and solvent without disturbing the solvent in another portion of the column, whereupon the emulsion separates by gravity from said carrier liquid and solvent and the hydrocarbon dissolves in the solvent at the interface between the emulsion and the solvent, and optically testing the color of the solvent in a second portion of the column to determine its hydrocarbon content.
Claim 2
Independent Claim
143 words
A method of detecting a hydrocarbon in a carrier liquid which comprises: placing a solvent for the hydrocarbon in an elongated vertical column, diffusing a sample of the carrier liquid into a first portion of said column containing said solvent for the hydrocarbon and said solvent being immissible with said carrier liquid and said solvent having a specific gravity different from that of said carrier liquid in order to form in said one portion of the column an emulsion of said carrier liquid and solvent without disturbing the solvent in another portion of the column, whereupon the emulsion separates by gravity from said carrier liquid and solvent and the hydrocarbon dissolves in the solvent at the interface between the emulsion and the solvent, and optically testing the color of the solvent in a second portion of the column to determine its hydrocarbon content.
Claim 3
Dependent Claim
20 words
A method as in claim 1 wherein said step of diffusing a sample of the carrier fluid comprises diffusing water.
Claim 4
Dependent Claim
44 words
A method as in claim 2 wherein the step of diffusing a sample of water comprises continuously diffusing into said first portion of said column and further comprising step of continuously removing the water from the column after it has separated from the Emulsion.
Claim 5
Dependent Claim
26 words
A method as in claim 1 including the step of recycling solvent from said second portion of said column to said first portion of said column.
Claim 6
Dependent Claim
57 words
A method as in claim 2 wherein said solvent has a specific gravity greater than water, wherein the step of diffusing comprises diffusing the water into the top portion of the column, and wherein said step of optically testing the solvent comprises optically testing the solvent in the lower portion of said column for its hydrocarbon content.
Claim 7
Dependent Claim
30 words
A method as in claim 2 wherein said step of placing the solvent in the column comprises placing carbon tetrachloride in the column and wherein said hydrocarbon is fuel oil.
References Cited (Backward Citations)
US2519081A
Cited
US2662752A
Cited
US2968940A
Cited
US3233448A
Cited
US3271998A
Cited
GB1091974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |