US2915369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for extracting sulphur
Assignee: Individual
•
Filing: 1953-09-29
•
Granted: 1959-12-01
•
Expires: 1973-09-29
Abstract
No abstract record available.
Inventors
- 👤 Orion O Oaks
- 👤 Scheel Henry Van Riper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/027; C01B17/033; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A SULPHUR EXTRACTION PROCESS COMPRISING INTRODUCING A FREE-SULPHUR-BEARING MATERIAL IN FLUENT CONDITION AND A LIQUID VEHICLE INTO A HOT RAPIDLY MOVING STREAM OF GAS, SAID LIQUID VEHICLE HAVING A DIFFERENT SPEFIC GRAVITY THAN SULPHUR AND AT THE TEMPERATURES AND PRESSURES USED IN THE PROCESS BEING STABLE AND NON-VOLATILE AND NONREACTANT CHEMICALLY WITH SULPHUR, SUBJECTING THE ORE AND LIQUIDF-VEHICLE MIXTURE TO CENTREIFUGAL FORCE IN A RAPIDLY ROTATING STREAM OF SAID HOT GAS WHEREBY THE SULPHUR IS LIQUIFIED AND SEPARATED FROM THE SOLIDS, AND DRAWING OFF THE LIQUIDS SULPHUR AND LIQUID VEHICLE SEPARATELY FROM THE SOLIDS.
Claim 2
Dependent Claim
94 words
A SULPHUR EXTRACTION PROCESS COMPRISING INTRODUCING A FREE-SULPHUR-BEARING MATERIAL IN FLUENT CONDITION AND A LIQUID VEHICLE INTO A HOT RAPIDLY MOVING STREAM OF GAS, SAID LIQUID VEHICLE HAVING A DIFFERENT SPEFIC GRAVITY THAN SULPHUR AND AT THE TEMPERATURES AND PRESSURES USED IN THE PROCESS BEING STABLE AND NON-VOLATILE AND NONREACTANT CHEMICALLY WITH SULPHUR, SUBJECTING THE ORE AND LIQUIDF-VEHICLE MIXTURE TO CENTREIFUGAL FORCE IN A RAPIDLY ROTATING STREAM OF SAID HOT GAS WHEREBY THE SULPHUR IS LIQUIFIED AND SEPARATED FROM THE SOLIDS, AND DRAWING OFF THE LIQUIDS SULPHUR AND LIQUID VEHICLE SEPARATELY FROM THE SOLIDS.
References Cited (Backward Citations)
US1512320A
Cited
US1318015A
Cited
US473662A
Cited
US938702A
Cited
US1285358A
Cited
US1374422A
Cited
US1406905A
Cited
US1409338A
Cited
US1990602A
Cited
US2195870A
Cited
US2409408A
Cited
US2537842A
Cited
US2629133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |