US3334159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for prilling sulphur
Assignee: National Sulphur Co
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Filing: 1964-09-17
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Granted: 1967-08-01
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Expires: 1984-09-17
Abstract
No abstract record available.
Inventors
- 👤 Roy E Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:07
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; C; C01; C01B; C01B17/00; C01B17/02; C01B17/0237; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF PRODUCING SUBSTANTIALLY SPHERICAL SULPHUR PARTICLES COMPRISING THE STEPS OF: MAINTAINING A CONSTANT HEAD OF MOLTEN SULPHUR AT A TEMPERATURE OF NOT MORE THAN 320*F. UPON A PERFORATED PLATE WHEREBY SAID SULPHUR WILL PASS THROUGH EACH OF SAID PERFORATIONS AS A CONSTANT STEAM INTO A COOLING LIQUID; MAINTAINING SAID COOLING LIQUID AT A TEMPERATURE OF NOT MORE THAN ITS BOILING POINT, AT A CONSTANT LEVEL, AND DISTANCE BELOW SAID PERFORATED PLATE WHEREBY SAID SULPHUR PARTICLES ARE FORMED AFTER SUBMERGENCE OF EACH CONSTANT STREAM INTO SAID COOLING LIQUID; AND WITHDRAWING SAID PARTICLES FROM SAID COOLING LIQUID AND DRYING AND PARTICLES.
Claim 2
Independent Claim
101 words
A METHOD OF PRODUCING SUBSTANTIALLY SPHERICAL SULPHUR PARTICLES COMPRISING THE STEPS OF: MAINTAINING A CONSTANT HEAD OF MOLTEN SULPHUR AT A TEMPERATURE OF NOT MORE THAN 320*F. UPON A PERFORATED PLATE WHEREBY SAID SULPHUR WILL PASS THROUGH EACH OF SAID PERFORATIONS AS A CONSTANT STEAM INTO A COOLING LIQUID; MAINTAINING SAID COOLING LIQUID AT A TEMPERATURE OF NOT MORE THAN ITS BOILING POINT, AT A CONSTANT LEVEL, AND DISTANCE BELOW SAID PERFORATED PLATE WHEREBY SAID SULPHUR PARTICLES ARE FORMED AFTER SUBMERGENCE OF EACH CONSTANT STREAM INTO SAID COOLING LIQUID; AND WITHDRAWING SAID PARTICLES FROM SAID COOLING LIQUID AND DRYING AND PARTICLES.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |