US3314864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analysis
Assignee: Beckman Coulter Inc
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Filing: 1964-06-11
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Granted: 1967-04-18
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Paul A Hersch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:56
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; G01N27/4045; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/206664
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A GALVANIC MONITORING PROCESS FOR DETERMINING A SPECIES IN A SAMPLE GAS STREAM THAT OXIDIZES A HALIDE, THE STEPS COMPRISING: CONVEYING SAID GAS STREAM INTO A BODY OF AQUEOUS HALIDE ELECTROLYTE HAVING IMMERSED THEREIN A CATHODE OF INERT CONDUCTIVE MATERIAL AND AN ANODE OF ACTIVE CARBON, WHEREBY SAID OXIDIZING SPECIES IN SAID GAS STREAM REACTS WITH HALIDE IONS RESULTING IN THE FORMATION OF FREE HALOGEN AND SAID HALOGEN IS SUBSEQUENTLY REDUCED AT SAID CATHODE TO HALIDE IONS AND, THEREFORE, THE HALIDE IONS FORMED AS THE CATHODE ARE AVAILABLE FOR REACTION WITH ADDITIONAL OXIDIZING SPECIES IN THE SAMPLE GAS STREAM; AND MEASURING THE CURRENT ACROSS SAID ELECTRODES WITHOUT DRIVING A CURRENT THROUGH SAID ELECTRODES FROM AN EXTERNAL ELECTRICAL POWER SOURCE WHEREBY THE CURRENT MEASURED IS A FUNCTION OF THE RATE OF ENTRY OF SAID OXIDIZING SPECIES INTO THE ELECTROLYTE.
Claim 2
Dependent Claim
139 words
IN A GALVANIC MONITORING PROCESS FOR DETERMINING A SPECIES IN A SAMPLE GAS STREAM THAT OXIDIZES A HALIDE, THE STEPS COMPRISING: CONVEYING SAID GAS STREAM INTO A BODY OF AQUEOUS HALIDE ELECTROLYTE HAVING IMMERSED THEREIN A CATHODE OF INERT CONDUCTIVE MATERIAL AND AN ANODE OF ACTIVE CARBON, WHEREBY SAID OXIDIZING SPECIES IN SAID GAS STREAM REACTS WITH HALIDE IONS RESULTING IN THE FORMATION OF FREE HALOGEN AND SAID HALOGEN IS SUBSEQUENTLY REDUCED AT SAID CATHODE TO HALIDE IONS AND, THEREFORE, THE HALIDE IONS FORMED AS THE CATHODE ARE AVAILABLE FOR REACTION WITH ADDITIONAL OXIDIZING SPECIES IN THE SAMPLE GAS STREAM; AND MEASURING THE CURRENT ACROSS SAID ELECTRODES WITHOUT DRIVING A CURRENT THROUGH SAID ELECTRODES FROM AN EXTERNAL ELECTRICAL POWER SOURCE WHEREBY THE CURRENT MEASURED IS A FUNCTION OF THE RATE OF ENTRY OF SAID OXIDIZING SPECIES INTO THE ELECTROLYTE.
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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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |