US2655436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank reactor
Assignee: United States Steel Corp
•
Filing: 1949-07-26
•
Granted: 1953-10-13
•
Expires: 1969-07-26
Abstract
No abstract record available.
Inventors
- 👤 Charles A Bishop
- 👤 Thomas F Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
C; C01; C01G; C01G49/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS FOR TREATING IRON SALT SOLUTIONS COMPRISING A TANK, A SHAFT EXTENDING VERTICALLY THROUGH SAID TANK, MEANS FOR ROTATING SAID SHAFT, A PAIR OF OPPOSED CENTRICONE IMPELLERS FASTENED TO THE LOWER PART OF SAID SHAFT, THE SMALL DIAMETER ENDS OF SAID CENTRICONE IMPELLERS BEING ADJACENT EACH OTHER WITH A SPACE THEREBETWEEN, A TURBINE IMPELLER FASTENED TO SAID SHAFT ABOVE SAID CENTRICONE IMPELLERS A PLURALITY OF AMMONIA INLETS NEAR THE BOTTOM OF THE TANK AROUND THE PERIPHERY THEREOF, A PLURALITY OF IRON SALT INLETS ADJACENT THE AMMONIA INLETS, A PLURALITY OF AIR INLETS AROUND THE PERIPHERY OF THE TANK AT A LEVEL BETWEEN THE CENTRICONE IMPELLERS, AND AN OUTLET
Claim 2
Dependent Claim
108 words
APPARATUS FOR TREATING IRON SALT SOLUTIONS COMPRISING A TANK, A SHAFT EXTENDING VERTICALLY THROUGH SAID TANK, MEANS FOR ROTATING SAID SHAFT, A PAIR OF OPPOSED CENTRICONE IMPELLERS FASTENED TO THE LOWER PART OF SAID SHAFT, THE SMALL DIAMETER ENDS OF SAID CENTRICONE IMPELLERS BEING ADJACENT EACH OTHER WITH A SPACE THEREBETWEEN, A TURBINE IMPELLER FASTENED TO SAID SHAFT ABOVE SAID CENTRICONE IMPELLERS A PLURALITY OF AMMONIA INLETS NEAR THE BOTTOM OF THE TANK AROUND THE PERIPHERY THEREOF, A PLURALITY OF IRON SALT INLETS ADJACENT THE AMMONIA INLETS, A PLURALITY OF AIR INLETS AROUND THE PERIPHERY OF THE TANK AT A LEVEL BETWEEN THE CENTRICONE IMPELLERS, AND AN OUTLET
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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) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |