US2655435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical reaction tower
Assignee: Colgate Palmolive Co
•
Filing: 1949-08-25
•
Granted: 1953-10-13
•
Expires: 1969-08-25
Abstract
No abstract record available.
Inventors
- 👤 Lowell A Ledgett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:47
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1868; B01J19/1875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN APPARATUS COMPRISING A FLASH COOLING VESSEL PROVIDING AN ENLARGED CHAMBER HAVING TWO VERTICALLY ELONGATED CONCENTRIC TUBES OPENING INTO THE LOWER PORTION THEREOF, THE OUTER TUBE OPENING INTO SAID CHAMBER ADJACENT TO THE BOTTOM WALL THEREOF AND BEING CLOSED AT ITS LOWER END, THE UPPER END OF THE INNER TUBE EXTENDING A SUBSTANTIAL DISTANCE UPWARDLY INTO SAID ENLARGED CHAMBER AND THE LOWER OPEN END THEREOF TERMINATING SHORT OF THE CLOSED LOWER END OF THE OUTER TUBE TO PROVIDE A PASSAGE FROM ONE TUBE TO THE OTHER, A POWER DRIVEN IMPELLER MOUNTED IN THE LOWER END OF SAID INNER TUBE, AN ADJUSTABLE VALVE ADJACENT TO THE SAID UPPER END OF SAID INNER TUBE IN SAID ENLARGED CHAMBER FOR VARYING THE SIZE OF THE ORIFICE BETWEEN THE UPPER END OF SAID INNER TUBE AND SAID VALVE THROUGH WHICH THE INNER TUBE COMMUNICATES WITH SAID ENLARGED CHAMBER, PIPES FOR FEEDING REACTANTS TO SAID TUBES, AND A VAPOR LINE COMMUNICATING WITH THE UPPER PART OF SAID ENLARGED CHAMBER.
Claim 2
Independent Claim
164 words
AN APPARATUS COMPRISING A FLASH COOLING VESSEL PROVIDING AN ENLARGED CHAMBER HAVING TWO VERTICALLY ELONGATED CONCENTRIC TUBES OPENING INTO THE LOWER PORTION THEREOF, THE OUTER TUBE OPENING INTO SAID CHAMBER ADJACENT TO THE BOTTOM WALL THEREOF AND BEING CLOSED AT ITS LOWER END, THE UPPER END OF THE INNER TUBE EXTENDING A SUBSTANTIAL DISTANCE UPWARDLY INTO SAID ENLARGED CHAMBER AND THE LOWER OPEN END THEREOF TERMINATING SHORT OF THE CLOSED LOWER END OF THE OUTER TUBE TO PROVIDE A PASSAGE FROM ONE TUBE TO THE OTHER, A POWER DRIVEN IMPELLER MOUNTED IN THE LOWER END OF SAID INNER TUBE, AN ADJUSTABLE VALVE ADJACENT TO THE SAID UPPER END OF SAID INNER TUBE IN SAID ENLARGED CHAMBER FOR VARYING THE SIZE OF THE ORIFICE BETWEEN THE UPPER END OF SAID INNER TUBE AND SAID VALVE THROUGH WHICH THE INNER TUBE COMMUNICATES WITH SAID ENLARGED CHAMBER, PIPES FOR FEEDING REACTANTS TO SAID TUBES, AND A VAPOR LINE COMMUNICATING WITH THE UPPER PART OF SAID ENLARGED CHAMBER.
References Cited (Backward Citations)
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 |