US2924513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln
Assignee: EIDP Inc
•
Filing: 1955-01-06
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Granted: 1960-02-09
•
Expires: 1975-01-06
Abstract
No abstract record available.
Inventors
- 👤 David F Altimier
- 👤 Cecil J Doubt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A ROTARY KILM FOR CONDUCTING A REACTION BETWEEN A GAS AND A LIQUID SPREAD OVER SOLID CARRIER AN ARRANGEMENT OF MIXING FLIGHTS ATTACHED TO THE INNER CIRCUMFERENTIAL WALL OF SAID KILN COMPRISING HELICALLY ATTACHED FEED END FLIGHTS IN THE LIQUID FEED END OF SAID KILN SPRIRALING IN A DIRECTION OPPOSED TO THE DIRECTION OF RATATION OF SAID KILN, HELICALLY ATTACHED RECYCLING FLIGHTS ARRANGED BETWEEN THE DISCHARGE END OF SAID KILN AND THE LIQUID FEED ZONE OF SAID KILN SPIRALING IN THE DIRECTION OF ROTATION OF SAID KILN, AND FLIGHTS ATTACHED PARALLEL TO THE AXIS OF ROTATION OF SAID KILN AND DISTRIBUTED THROUGHOUT SAID INNER CIRCUMFERENTIAL WALL.
Claim 2
Dependent Claim
107 words
IN A ROTARY KILM FOR CONDUCTING A REACTION BETWEEN A GAS AND A LIQUID SPREAD OVER SOLID CARRIER AN ARRANGEMENT OF MIXING FLIGHTS ATTACHED TO THE INNER CIRCUMFERENTIAL WALL OF SAID KILN COMPRISING HELICALLY ATTACHED FEED END FLIGHTS IN THE LIQUID FEED END OF SAID KILN SPRIRALING IN A DIRECTION OPPOSED TO THE DIRECTION OF RATATION OF SAID KILN, HELICALLY ATTACHED RECYCLING FLIGHTS ARRANGED BETWEEN THE DISCHARGE END OF SAID KILN AND THE LIQUID FEED ZONE OF SAID KILN SPIRALING IN THE DIRECTION OF ROTATION OF SAID KILN, AND FLIGHTS ATTACHED PARALLEL TO THE AXIS OF ROTATION OF SAID KILN AND DISTRIBUTED THROUGHOUT SAID INNER CIRCUMFERENTIAL WALL.
References Cited (Backward Citations)
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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) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |