US3377294A
Expired / Lapsed
US
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Method for detecting moisture
Assignee: Monsanto Co
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Filing: 1965-01-22
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Granted: 1968-04-09
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Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 George D Davis
- 👤 Rodney D Beckham
- 👤 Loyd W Fannin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; G01N31/222; Y; Y10; Y10T; Y10T436/00; Y10T436/25; Y10T436/25375; Y10T436/255
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD FOR DETECTING AND MEASURING MOISTURE IN A MOISTURE-CONTAINING GAS WHICH COMPRISES CONTACTING SAID MOISTURE-CONTAINING GAS WITH A MOLECULAR SIEVE SELECTED FROM THE GROUP CONSISTING OF CALCIUM-ALUMINOSILICATES, SODIUM-ALUMINO-SILICATES, AND CALCIUM-SODIUMALUMNO-SILICATES, A PORTION OF THE IONS OF WHICH HAVE BEEN REPLACED WITH MANGANESE BENG SUFFICIENT TO CAUSE A CONCENTRATION OF 0.5 TO 15.0 PERCENT BY WEIGHT MANGANESE IN THE MOLECULAR SIEVE, THE MANGANESE-CONTAINING MOLECULAR SIEVE HAVING BEEN HEATED IN THE PRESENCE OF AN OXYGENCONTIANING GAS OF THE TYPE WHICH WILL PERMIT OXIDATION, AT A TEMPERATURE OF 550 TO 650*C. FOR A TIME SUFFICIENT TO IMPART A TURQUOISE COLOR TO SAID MOLECULAR SIEVE, OBSERVING THE CHANGE IN COLOR OF SAID MAGANESE-CONTAING MOLECULAR SIEVE AS MOISTURE IS ADSORBED THEREBY, THE DEGREE OF CHANGE IN TH COOR OF SAID MOLECULAR SIEVE BEING INDICATIVE OF THE AMOUNT OF MOISTURE IN SAID MOISURECONTAINING GAS.
Claim 2
Independent Claim
139 words
A METHOD FOR DETECTING AND MEASURING MOISTURE IN A MOISTURE-CONTAINING GAS WHICH COMPRISES CONTACTING SAID MOISTURE-CONTAINING GAS WITH A MOLECULAR SIEVE SELECTED FROM THE GROUP CONSISTING OF CALCIUM-ALUMINOSILICATES, SODIUM-ALUMINO-SILICATES, AND CALCIUM-SODIUMALUMNO-SILICATES, A PORTION OF THE IONS OF WHICH HAVE BEEN REPLACED WITH MANGANESE BENG SUFFICIENT TO CAUSE A CONCENTRATION OF 0.5 TO 15.0 PERCENT BY WEIGHT MANGANESE IN THE MOLECULAR SIEVE, THE MANGANESE-CONTAINING MOLECULAR SIEVE HAVING BEEN HEATED IN THE PRESENCE OF AN OXYGENCONTIANING GAS OF THE TYPE WHICH WILL PERMIT OXIDATION, AT A TEMPERATURE OF 550 TO 650*C. FOR A TIME SUFFICIENT TO IMPART A TURQUOISE COLOR TO SAID MOLECULAR SIEVE, OBSERVING THE CHANGE IN COLOR OF SAID MAGANESE-CONTAING MOLECULAR SIEVE AS MOISTURE IS ADSORBED THEREBY, THE DEGREE OF CHANGE IN TH COOR OF SAID MOLECULAR SIEVE BEING INDICATIVE OF THE AMOUNT OF MOISTURE IN SAID MOISURECONTAINING GAS.
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |