US2934412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prilling of ammonium nitrate
Assignee: Commercial Solvents Corp
•
Filing: 1956-07-12
•
Granted: 1960-04-26
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Stengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:05
CPC Classifications
C; C05; C05C; C05C1/00; C05C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN THE PROCESS OF PREPARING AMMONIUM NITRATE PRILLS FROM MOLTEN AMMONIUM NITRATE WITH A MOISTURE CONTENT NOT EXCEEDING 0.5%, BY SPRAYING THE MOLTEN AMMONIUM NITRATE IN DROPLET FROM DOWNWARDLY INTO A COOLING GAS, THE IMPROVEMENT WHICH CONSISTS IN SPRAYING THE AMMONIUM NITRATE AT LOW PRESSURE THROUGH ORIFICE OPENINGS SUBSTANTIALLY IN THE RANGE OF ABOUT 0.037 INCH IN DIAMETER INTO SAID GAS, AND THEN RECOVERING THE RESULTING PRILLS, SAID PRESSURE AND ORIFICE SIZE BEING SO CORRELATED AS TO PRODUCE FREE FLOWING PRILLS CHARACTERIZED BY A PARTICLE DENSITY FROM ABOUT 1.5 TO 1.65 GRAMS PER CC. AND MAINLY IN THE RANGE OF -10+20 MESH.
Claim 2
Dependent Claim
102 words
IN THE PROCESS OF PREPARING AMMONIUM NITRATE PRILLS FROM MOLTEN AMMONIUM NITRATE WITH A MOISTURE CONTENT NOT EXCEEDING 0.5%, BY SPRAYING THE MOLTEN AMMONIUM NITRATE IN DROPLET FROM DOWNWARDLY INTO A COOLING GAS, THE IMPROVEMENT WHICH CONSISTS IN SPRAYING THE AMMONIUM NITRATE AT LOW PRESSURE THROUGH ORIFICE OPENINGS SUBSTANTIALLY IN THE RANGE OF ABOUT 0.037 INCH IN DIAMETER INTO SAID GAS, AND THEN RECOVERING THE RESULTING PRILLS, SAID PRESSURE AND ORIFICE SIZE BEING SO CORRELATED AS TO PRODUCE FREE FLOWING PRILLS CHARACTERIZED BY A PARTICLE DENSITY FROM ABOUT 1.5 TO 1.65 GRAMS PER CC. AND MAINLY IN THE RANGE OF -10+20 MESH.
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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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |