US3346915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prilling nozzle
Assignee: Shell USA Inc
•
Filing: 1964-11-25
•
Granted: 1967-10-17
•
Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Fritz K Fleischer
- 👤 Billy W Sisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:28
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PRILLING NOZZLE FOR PRODUCING SMALL LIQUID DROPLETS OF MOLTEN MATERIAL WHICH SOLIDIFY INTO UNIFORM PRILLS UPON COOLING COMPRISING: (A) A HEATING CHEST INCLUDING A PAIR OF OPPOSED, VERTICALLY SPACED HORIZONTAL WALLS, CLOSURE MEANS FOR THE MARGINS OF THE CHEST, AND MEANS FOR FLOWING A FLUID HEATING MEDIUM THROUGH SAID CHEST; (B) A PLURALITY OF SMALL-DIAMETER TUBES HAVING A SMALL INTERNAL BORE EXENDING VERTICALLY THROUGH SAID CHEST AND SEALED IN VERTICALLY ALIGNED PAIRS OF HOLES IN SAID HORIZONTAL WALLS PREVENTING THE ESCAPE OF HEATING MEDIUM FROM SAID CHEST, SAID TUBES PROJECTING DOWNWARDLY BEYOND THE LOWER WALL; AND (C) A CHAMBER ABOVE THE UPPER WALL OF SAID CHEST HAVING ITS BOTTOM CLOSED BY THE EXTERIOR OF SAID UPPER WALL OF SAID CHEST TO SUPPLY MOLTEN MATERIAL TO THE TOP OF SAID TUBES WHICH CAN PASS DOWNWARDLY THROUGH SAID BORE OF SAID SMALL DIAMETER TUBES FOR PRILLING.
Claim 2
Dependent Claim
145 words
A PRILLING NOZZLE FOR PRODUCING SMALL LIQUID DROPLETS OF MOLTEN MATERIAL WHICH SOLIDIFY INTO UNIFORM PRILLS UPON COOLING COMPRISING: (A) A HEATING CHEST INCLUDING A PAIR OF OPPOSED, VERTICALLY SPACED HORIZONTAL WALLS, CLOSURE MEANS FOR THE MARGINS OF THE CHEST, AND MEANS FOR FLOWING A FLUID HEATING MEDIUM THROUGH SAID CHEST; (B) A PLURALITY OF SMALL-DIAMETER TUBES HAVING A SMALL INTERNAL BORE EXENDING VERTICALLY THROUGH SAID CHEST AND SEALED IN VERTICALLY ALIGNED PAIRS OF HOLES IN SAID HORIZONTAL WALLS PREVENTING THE ESCAPE OF HEATING MEDIUM FROM SAID CHEST, SAID TUBES PROJECTING DOWNWARDLY BEYOND THE LOWER WALL; AND (C) A CHAMBER ABOVE THE UPPER WALL OF SAID CHEST HAVING ITS BOTTOM CLOSED BY THE EXTERIOR OF SAID UPPER WALL OF SAID CHEST TO SUPPLY MOLTEN MATERIAL TO THE TOP OF SAID TUBES WHICH CAN PASS DOWNWARDLY THROUGH SAID BORE OF SAID SMALL DIAMETER TUBES FOR PRILLING.
References Cited (Backward Citations)
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US2735138A
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US2110570A
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US2268888A
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US2528407A
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US2872706A
Cited
US3023171A
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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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |