US3141835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for determining oxygen in a molten halogenated bath
Assignee: Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Filing: 1961-02-02
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Granted: 1964-07-21
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Rolin Maurice
- 👤 Gallay Jean-Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:45
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/406; G01N27/411; G01N27/4112; C; C25; C25C; C25C3/00; C25C3/06; C25C3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A MEASURING SYSTEM FOR USE IN DETERMINING OXYGEN ION CONCENTRATION IN A BATH CONSTITUTED BY MOLTEN HALOGENATED SALTS IN WHICH OXYGENATED PRODUCTS ARE DISSOLVED. WHICH COMPRISES A REFERENCE ELECTRODE WHOSE ELECTRIC POTENTIAL IS INDEPENDENT OF OXYGEN ION CONCENTRATION IN THE BATH, SAID BATH AND AN INDICATING ELECTRODE WHOSE ELECTRIC POTENTIAL IS DEPENDENT ON THE OXYGEN ION CONCENTRATION IN THE BATH AND IS THERMALLY STABLE AND PRACTICALLY INSOLUBLE IN THE BATH, SAID INDICATING ELECTRODE CONSISTING OF A METALLIC OXIDE, SAID REFERENCE AND SAID INDICATING ELECTRODES BEING SPACED APART AND BEING DIPPED INTO SAID BETH, SAID SYSTEM MEASURING ELECTRIC POTENTIAL BETWEEN SAID ELECTRODES WHICH POTENTIAL HAS A MAGNITUDE DEPENDENT UPON OXYGEN ION CONCENTRATION IN SAID BATH AND WHICH IS MEASURED TO DETERMINE OXYGEN ION CONCENTRATION IN SAID BATH.
Claim 2
Dependent Claim
126 words
A MEASURING SYSTEM FOR USE IN DETERMINING OXYGEN ION CONCENTRATION IN A BATH CONSTITUTED BY MOLTEN HALOGENATED SALTS IN WHICH OXYGENATED PRODUCTS ARE DISSOLVED. WHICH COMPRISES A REFERENCE ELECTRODE WHOSE ELECTRIC POTENTIAL IS INDEPENDENT OF OXYGEN ION CONCENTRATION IN THE BATH, SAID BATH AND AN INDICATING ELECTRODE WHOSE ELECTRIC POTENTIAL IS DEPENDENT ON THE OXYGEN ION CONCENTRATION IN THE BATH AND IS THERMALLY STABLE AND PRACTICALLY INSOLUBLE IN THE BATH, SAID INDICATING ELECTRODE CONSISTING OF A METALLIC OXIDE, SAID REFERENCE AND SAID INDICATING ELECTRODES BEING SPACED APART AND BEING DIPPED INTO SAID BETH, SAID SYSTEM MEASURING ELECTRIC POTENTIAL BETWEEN SAID ELECTRODES WHICH POTENTIAL HAS A MAGNITUDE DEPENDENT UPON OXYGEN ION CONCENTRATION IN SAID BATH AND WHICH IS MEASURED TO DETERMINE OXYGEN ION CONCENTRATION IN SAID BATH.
References Cited (Backward Citations)
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US2215165A
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US2206026A
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US2289258A
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US2319196A
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US2827425A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |