US2555337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical furnace and recovery unit
Assignee: Combustion Engineering Inc
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Filing: 1945-04-11
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Granted: 1951-06-05
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Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Hamm Alexander Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:59
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/12; B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0013; C; C01; C01D; C01D5/00; C01D7/00; C01D7/22; C01D7/30; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00105; B01J2219/0011; B01J2219/00162; B01J2219/00164; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A SELF-SUSTAINING UNIT FOR RECOVERING HEAT AND CHEMICAL FROM WASTE WOOD PULP LIQUOR, COMPRISING IN COMBINATION WITH A FURNACE HAVING A FUEL DELIVERY NOZZLE, MEANS ADAPTED TO HOLD AND SUPPLY WASTE LIQUOR OF AT LEAST 60% SOLIDS CONTENT, AND A LINE EXTENDED FROM THE SOURCE TO THE NOZZLE; A PUMP IN SAID LINE FOR DELIVERING LIQUOR TO THE NOZZLE UNDER PRESSURE, A CONTROLLABLE STEAM INJECTOR HEATER IN SAID LINE IN ADVANCE OF THE PUMP PROVIDING FOR CONTROLLED INCREASE IN TEM-
Claim 2
Dependent Claim
81 words
IN A SELF-SUSTAINING UNIT FOR RECOVERING HEAT AND CHEMICAL FROM WASTE WOOD PULP LIQUOR, COMPRISING IN COMBINATION WITH A FURNACE HAVING A FUEL DELIVERY NOZZLE, MEANS ADAPTED TO HOLD AND SUPPLY WASTE LIQUOR OF AT LEAST 60% SOLIDS CONTENT, AND A LINE EXTENDED FROM THE SOURCE TO THE NOZZLE; A PUMP IN SAID LINE FOR DELIVERING LIQUOR TO THE NOZZLE UNDER PRESSURE, A CONTROLLABLE STEAM INJECTOR HEATER IN SAID LINE IN ADVANCE OF THE PUMP PROVIDING FOR CONTROLLED INCREASE IN TEM-
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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |