US3769189A
Expired / Lapsed
US
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Apparatus for carbon content analysis
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1970-06-09
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Granted: 1973-10-30
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Expires: 1990-06-09
Abstract
Abstract An enclosure of metal, in which carbon is both soluble and mobile, is inserted in the fluid in which carbon content is to be determined. Within the enclosure is an electrolyte and a reference electrode dipping into the electrolyte. The potential between the reference electrode and the metal of the enclosure provides an indication of the carbon content in the fluid.
Inventors
- 👤 G Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/411; G01N27/4112; G01N27/4114
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
24 words
A device as claimed in claim 1, wherein the electrolyte comprises calcium carbide dissolved in a salt which is molten at the operating temperature.
Claim 2
Dependent Claim
14 words
A device as claimed in claim 2, wherein the said salt comprises calcium chloride.
Claim 3
Dependent Claim
27 words
A device as claimed in claim 1, wherein the enclosure is of a material selected from iron, nickel, an alloy of iron, and an alloy of nickel.
References Cited (Backward Citations)
US3403090A
Cited
US3523066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |