US2530630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of recovering sulfur from pyrite
Assignee: Noranda Inc
•
Filing: 1947-10-07
•
Granted: 1950-11-21
•
Expires: 1967-10-07
Abstract
No abstract record available.
Inventors
- 👤 Howard C Renken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:26
CPC Classifications
F; F27; F27B; F27B21/00; F27B21/06; C; C01; C01B; C01B17/00; C01B17/02; C01B17/027; C01B17/06; C22; C22B; C22B1/00; C22B1/02; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE PROCESS OF RECOVERING SULFUR FROM PYRITE FINES, WHICH COMPRISES THE STEPS OF NODULIZING THE FINES TO FORM NODULES OF PREDETERMINED SIZE AND PHYSICAL CHARACTERISTICS, PLACING A MASS OF SAID NODULES UPON A GAS-PERVIOUS SUPPORT IN A BED OF SUBSTANTIAL DEPTH, IGNITING THE UPPER SURFACE OF THE MASS WHILE MAINTAINING THE MASS ON SIAD SUPPORT WITHOUT SUBSTANTIAL RELATIVE MOVEMENT OF THE NODULES THEREOF, ADMITTING SOME AIR TO THE UPPER SURFACE OF THE MASS TO MAINTAIN COMBUSTION THEREOF WHILE PASSING GASES DOWNWARDLY THROUGH AND AWAY FROMT HE BURNING MASS, COOLING THE GASES FROMT HE BURNING MASS SUFFICIENTLY TO CONDENSE OUT SULFUR THEREFROM, AND DIVERTING A SELECTED PART ONLY OF THE REAMINING GASES FROM
Claim 2
Dependent Claim
112 words
THE PROCESS OF RECOVERING SULFUR FROM PYRITE FINES, WHICH COMPRISES THE STEPS OF NODULIZING THE FINES TO FORM NODULES OF PREDETERMINED SIZE AND PHYSICAL CHARACTERISTICS, PLACING A MASS OF SAID NODULES UPON A GAS-PERVIOUS SUPPORT IN A BED OF SUBSTANTIAL DEPTH, IGNITING THE UPPER SURFACE OF THE MASS WHILE MAINTAINING THE MASS ON SIAD SUPPORT WITHOUT SUBSTANTIAL RELATIVE MOVEMENT OF THE NODULES THEREOF, ADMITTING SOME AIR TO THE UPPER SURFACE OF THE MASS TO MAINTAIN COMBUSTION THEREOF WHILE PASSING GASES DOWNWARDLY THROUGH AND AWAY FROMT HE BURNING MASS, COOLING THE GASES FROMT HE BURNING MASS SUFFICIENTLY TO CONDENSE OUT SULFUR THEREFROM, AND DIVERTING A SELECTED PART ONLY OF THE REAMINING GASES FROM
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |