Patent US2607661A successfully refreshed from Google Patents.
US2607661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for concentrating acids
Assignee: SUBMERGED COMB Co OF AMER
•
Filing: 1946-04-09
•
Granted: 1952-08-19
•
Expires: 1966-04-09
Abstract
No abstract record available.
Inventors
- 👤 Walter G See
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:59
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/14; B01D1/26; C; C01; C01B; C01B17/00; C01B17/69; C01B17/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN APPARATUS FOR CONCENTRATING DILUTE ACIDS COMPRISING A PLURALITY OF INTERCOMMUNICATING CHAMBERS CONNECTED IN SERIES AND ADAPTED TO CONTAIN ACID TO BE CONCENTRATED, MEANS FOR CONTINUOUSLY PASSING DILUTE ACID INTO THE FIRST OF SAID CHAMBERS, MEANS FOR CONTINUOUSLY WITHDRAWING CONCENTRATED ACID FROM THE LAST OF SAID CHAMBERS, A PLURALITY OF TUBULAR SUBMERGED COMBUSTION BURNERS SPACED IN EACH OF SAID CHAMBERS, THE DISCHARGE ENDS OF SAID BURNERS BEING DIRECTED INWARDLY OF THEIR RESPECTIVE CHAMBER AND TOWARD EACH OTHER, AND A SUBMERGED PERFORATED PLATE EXTENDING HORIZONTALLY ABOVE THE BOTTOM OF EACH CHAMBER AND IMMEDIATELY ABOVE AND OVERLYING THE DISCHARGE ENDS OF THE BURNERS THEREIN, WHEREBY TO DISTRIBUTE THE COMBUSTION GASES THROUGH SAID ACID AND VAPORIZE A PORTION OF THE WATER THEREFROM.
Claim 2
Independent Claim
119 words
AN APPARATUS FOR CONCENTRATING DILUTE ACIDS COMPRISING A PLURALITY OF INTERCOMMUNICATING CHAMBERS CONNECTED IN SERIES AND ADAPTED TO CONTAIN ACID TO BE CONCENTRATED, MEANS FOR CONTINUOUSLY PASSING DILUTE ACID INTO THE FIRST OF SAID CHAMBERS, MEANS FOR CONTINUOUSLY WITHDRAWING CONCENTRATED ACID FROM THE LAST OF SAID CHAMBERS, A PLURALITY OF TUBULAR SUBMERGED COMBUSTION BURNERS SPACED IN EACH OF SAID CHAMBERS, THE DISCHARGE ENDS OF SAID BURNERS BEING DIRECTED INWARDLY OF THEIR RESPECTIVE CHAMBER AND TOWARD EACH OTHER, AND A SUBMERGED PERFORATED PLATE EXTENDING HORIZONTALLY ABOVE THE BOTTOM OF EACH CHAMBER AND IMMEDIATELY ABOVE AND OVERLYING THE DISCHARGE ENDS OF THE BURNERS THEREIN, WHEREBY TO DISTRIBUTE THE COMBUSTION GASES THROUGH SAID ACID AND VAPORIZE A PORTION OF THE WATER THEREFROM.
References Cited (Backward Citations)
USRE19064E
Cited
US2086902A
Cited
US1253522A
Cited
GB242681A
Cited
US1716433A
Cited
US2188479A
Cited
US2330440A
Cited
US2373359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |