US3305318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid carbon determination
Assignee: Laboratory Equipment Corp
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Filing: 1964-01-09
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Granted: 1967-02-21
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Bennet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:52
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/12; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/18; G01N27/185; G01N33/00; G01N33/20; G01N33/205; Y; Y10; Y10T; Y10T436/00; Y10T436/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD FOR DETERMINING CARBON IN AN OXIDIZABLE MATERIAL WHICH COMPRISES BURNING A SAMPLE OF THE MATERIAL IN OXYGEN, TRANSPORTING THE GASEOUS PRODUCTS OF COMBUSTION AND EXCESS OXYGEN THROUGH A PURIFYING TRAIN TO REMOVE COMPONENTS OTHER THAN THE CARBON OXIDES FROM THE OXYGEN AND TO OXIDIZE CARBON MONOXIDE TO CARBON DIOXIDE AND INTO THE LOWER END OF AN ANALYSIS CHAMBER HAVING A PISTON THEREIN ADAPTED TO FLOAT ON THE INTRODUCED OXYGEN-CARBON DIOXIDE MIXTURE, HALTING THE FILLING OF SAID CHAMBER WITH THE MIXTURE AT A DESIRED LEVEL OF FILLING, AND MEASURING THE THERMAL CONDUCTIVITY OF SAID MIXTURE IN SAID CHAMBER.
Claim 2
Independent Claim
99 words
A METHOD FOR DETERMINING CARBON IN AN OXIDIZABLE MATERIAL WHICH COMPRISES BURNING A SAMPLE OF THE MATERIAL IN OXYGEN, TRANSPORTING THE GASEOUS PRODUCTS OF COMBUSTION AND EXCESS OXYGEN THROUGH A PURIFYING TRAIN TO REMOVE COMPONENTS OTHER THAN THE CARBON OXIDES FROM THE OXYGEN AND TO OXIDIZE CARBON MONOXIDE TO CARBON DIOXIDE AND INTO THE LOWER END OF AN ANALYSIS CHAMBER HAVING A PISTON THEREIN ADAPTED TO FLOAT ON THE INTRODUCED OXYGEN-CARBON DIOXIDE MIXTURE, HALTING THE FILLING OF SAID CHAMBER WITH THE MIXTURE AT A DESIRED LEVEL OF FILLING, AND MEASURING THE THERMAL CONDUCTIVITY OF SAID MIXTURE IN SAID CHAMBER.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |