US2949345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur dioxide determination
Assignee: Honeywell International Inc
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Filing: 1956-12-24
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Granted: 1960-08-16
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 James K Clauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4162; Y; Y10; Y10T; Y10T436/00; Y10T436/18; Y10T436/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A METHOD OF DETERMINING THE CONCENTRATION OF SULFUR DIOXIDE IN A FLOWING GAS MIXTURE THAT IS ESSENTIALLY FREE FROM OTHER CONSTITUENTS WHICH DESOLVE IN WATER TO FORM AN ELECTROLYTE WHICH COMPRISES PASSING THE GAS MIXTURE IN INTIMATE CONTACT WITH A SOLUTION OF SULFUR DIOXIDE IN WATER OF KNOWN ELECTRICAL CONDUCTIVITY WHILE MAINTAINING A SUBSTANTIALLY CONSTANT TEMPERATURE AND PRESSURE, CONTROLLING THE RATE OF PASSAGE OF THE GAS MIXTURE AND THE RELATIVE AMOUNTS OF THE GAS MIXTURE AND AQUEOUS SOLUTION OF SULFUR DIOXIDE TO DISSOLVE A PORTION OF THE SULFUR, DIOXIDE IN THE SOLUTION AND LEAVE A SUBSTANTIAL PORTION OF THE SULFUR DIOXIDE IN THE GAS MIXTURE UNDISSOLVE, MAINTAINING CONTACT OF THE GAS MIXTURE WITH THE AQUEOUS SOLUTION OF SULFUR DIOXIDE FOR SUFFICIENT TIME TO ESTABLISH SUBSTANTIAL EQUILIBRIUM BETWEEN THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE AND SAID GAS MIXTURE WITH RESPECT TO SULFUR DIOXIDE, SEPARATING THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE FROM THE GAS MIXTURE, AND MEASURING THE ELECTRICAL CONDUCTIVITY OF THE RESULTING SEPARATED AQUEOUS SOLUTION OF SULFUR DIOXIDE WHILE SUBSTANTIALLY AT SAID TEMPERATURE AND PRESSURE, AS AN INDEX OF THE CONCENTRATION OF SULFUR DIOXIDE IN THE GAS MIXTURE.
Claim 2
Independent Claim
189 words
A METHOD OF DETERMINING THE CONCENTRATION OF SULFUR DIOXIDE IN A FLOWING GAS MIXTURE THAT IS ESSENTIALLY FREE FROM OTHER CONSTITUENTS WHICH DESOLVE IN WATER TO FORM AN ELECTROLYTE WHICH COMPRISES PASSING THE GAS MIXTURE IN INTIMATE CONTACT WITH A SOLUTION OF SULFUR DIOXIDE IN WATER OF KNOWN ELECTRICAL CONDUCTIVITY WHILE MAINTAINING A SUBSTANTIALLY CONSTANT TEMPERATURE AND PRESSURE, CONTROLLING THE RATE OF PASSAGE OF THE GAS MIXTURE AND THE RELATIVE AMOUNTS OF THE GAS MIXTURE AND AQUEOUS SOLUTION OF SULFUR DIOXIDE TO DISSOLVE A PORTION OF THE SULFUR, DIOXIDE IN THE SOLUTION AND LEAVE A SUBSTANTIAL PORTION OF THE SULFUR DIOXIDE IN THE GAS MIXTURE UNDISSOLVE, MAINTAINING CONTACT OF THE GAS MIXTURE WITH THE AQUEOUS SOLUTION OF SULFUR DIOXIDE FOR SUFFICIENT TIME TO ESTABLISH SUBSTANTIAL EQUILIBRIUM BETWEEN THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE AND SAID GAS MIXTURE WITH RESPECT TO SULFUR DIOXIDE, SEPARATING THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE FROM THE GAS MIXTURE, AND MEASURING THE ELECTRICAL CONDUCTIVITY OF THE RESULTING SEPARATED AQUEOUS SOLUTION OF SULFUR DIOXIDE WHILE SUBSTANTIALLY AT SAID TEMPERATURE AND PRESSURE, AS AN INDEX OF THE CONCENTRATION OF SULFUR DIOXIDE IN THE GAS MIXTURE.
References Cited (Backward Citations)
US1475000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |