Patent US2805191A successfully refreshed from Google Patents.
US2805191A
Expired / Lapsed
US
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Oxygen analysis of gases
Assignee: Huntington Alloys Corp
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Filing: 1954-10-14
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Granted: 1957-09-03
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Expires: 1974-10-14
Abstract
No abstract record available.
Inventors
- 👤 Hersch Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:23
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/207497; Y10T436/209163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A METHOD FOR DETECTING AND MEASURING THE PRESENCE OF OXYGEN IN A GAS WHICH COMPRISES ESTABLISHING CONTACT BETWEEN A SUBSTANTIALLY STAGNANT, AQUEOUS ELECTROLYTE AND A BASE-METAL ANODE HAVING THE PROPERTY OF BEING ATTACKED BY THE ELECTROLYTE IN THE PRESENCE OF UNCOMBINED OXYGEN BUT NOT ATTACKED BY THE ELECTROLYTE IN THE ABSENCE OF UNCOMBINED OXYGEN, MAINTAINING A METAL CATHODE HAVING A PORTION OF ITS AREA FREE OF CONTACT WITH SAID ELECTROLYTE AND HAVING A PORTION OF ITS AREA PARTIALLY SUBMERGED IN SAID ELECTROLYTE THEREBY PROVIDING AT LEAST ONE LINE OF CONTACT BETWEEN SAID CATHODE AND SAID ELECTROLYTE, SAID CATHODE HAVING THE PORPERTY OF NOT BEING ATTACKED BY SAID ELECTROLYTE EITHER IN THE PRESENCE OR ABSENCE OF OXYGEN CONDUCTING A STREAM OF GAS CONTAINING UNCOMBINED OXYGEN PAST THE SAID LINE OF CONTACT THEREBY FORMING A THREE-PHASE BOUNDARY WHEREBY AN ELECTRIC CURRENT IS CAUSED TO BE GENERATED WHICH CURRENT IS A FUNCTION OF THE CONCENTRATION OF THE GASEOUS UNCOMBINED OXYGEN IN THE STREAM OF GAS ADJACENT THE CATHODE, AND MEASURING THE CURRENT GENERATED BETWEEN SAID ANODE AND CATHODE.
Claim 2
Independent Claim
175 words
A METHOD FOR DETECTING AND MEASURING THE PRESENCE OF OXYGEN IN A GAS WHICH COMPRISES ESTABLISHING CONTACT BETWEEN A SUBSTANTIALLY STAGNANT, AQUEOUS ELECTROLYTE AND A BASE-METAL ANODE HAVING THE PROPERTY OF BEING ATTACKED BY THE ELECTROLYTE IN THE PRESENCE OF UNCOMBINED OXYGEN BUT NOT ATTACKED BY THE ELECTROLYTE IN THE ABSENCE OF UNCOMBINED OXYGEN, MAINTAINING A METAL CATHODE HAVING A PORTION OF ITS AREA FREE OF CONTACT WITH SAID ELECTROLYTE AND HAVING A PORTION OF ITS AREA PARTIALLY SUBMERGED IN SAID ELECTROLYTE THEREBY PROVIDING AT LEAST ONE LINE OF CONTACT BETWEEN SAID CATHODE AND SAID ELECTROLYTE, SAID CATHODE HAVING THE PORPERTY OF NOT BEING ATTACKED BY SAID ELECTROLYTE EITHER IN THE PRESENCE OR ABSENCE OF OXYGEN CONDUCTING A STREAM OF GAS CONTAINING UNCOMBINED OXYGEN PAST THE SAID LINE OF CONTACT THEREBY FORMING A THREE-PHASE BOUNDARY WHEREBY AN ELECTRIC CURRENT IS CAUSED TO BE GENERATED WHICH CURRENT IS A FUNCTION OF THE CONCENTRATION OF THE GASEOUS UNCOMBINED OXYGEN IN THE STREAM OF GAS ADJACENT THE CATHODE, AND MEASURING THE CURRENT GENERATED BETWEEN SAID ANODE AND CATHODE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |