Patent US2926073A successfully refreshed from Google Patents.
US2926073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making carbon black
Assignee: Individual
•
Filing: 1957-06-17
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Granted: 1960-02-23
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Philip W Robinson
- 👤 Jr Ralph E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:55
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
APPARATUS FOR MAKING CARBON BLACK AND FOR SEPARATING HYDROGEN FROM HYDROCARBON GASES CONSISTING OF A FURNACE STRUCTURE HAVING A COMBUSTION CHAMBER AT ONE END AND A WASTE GAS OUTLET AT THE OTHER WITH A HEATING CHAMBER THEREBETWEEN, BANKS OF TUBES PASING THROUGH SAID HEATING CHAMBER THE LOWER ENDS OF WHICH COMMUNICATE WITH HOPPERS FOR COLLECTING THE CARBON BLACK AND THE UPPER END OF SAILD TUBES OPENNING INTO HEADER CHAMBERS, ONE OF THE HEADER CHAMBERS BEING CONNECTED TO A SOURCE OF HYDROCARBON GASES AND ANOTHER OF THE HEADER CHAMBER BEING CONNECTED TO A FILTER TANK FOR SEPARATING THE CARBON AND HYDROGEN, A RECUPERATOR CHAMBER HAVING AN AIR PASSAGE IN HEAT EXCHANGE RELATION WITH SOME OF SAID TUBES FOR PREHEATING AIR, A BURNER FOR SAID COMBUSTION CHAMBER, MEANS FOR CONDUCTING THE PREHEATED AIR FROM SAID RECUPERATOR AIR PASSAGE TO SAID BURNER, AND A FUEL LINE EXTENDING FROM SAID FILTER TANK TO SAID BURNER.
Claim 2
Dependent Claim
151 words
APPARATUS FOR MAKING CARBON BLACK AND FOR SEPARATING HYDROGEN FROM HYDROCARBON GASES CONSISTING OF A FURNACE STRUCTURE HAVING A COMBUSTION CHAMBER AT ONE END AND A WASTE GAS OUTLET AT THE OTHER WITH A HEATING CHAMBER THEREBETWEEN, BANKS OF TUBES PASING THROUGH SAID HEATING CHAMBER THE LOWER ENDS OF WHICH COMMUNICATE WITH HOPPERS FOR COLLECTING THE CARBON BLACK AND THE UPPER END OF SAILD TUBES OPENNING INTO HEADER CHAMBERS, ONE OF THE HEADER CHAMBERS BEING CONNECTED TO A SOURCE OF HYDROCARBON GASES AND ANOTHER OF THE HEADER CHAMBER BEING CONNECTED TO A FILTER TANK FOR SEPARATING THE CARBON AND HYDROGEN, A RECUPERATOR CHAMBER HAVING AN AIR PASSAGE IN HEAT EXCHANGE RELATION WITH SOME OF SAID TUBES FOR PREHEATING AIR, A BURNER FOR SAID COMBUSTION CHAMBER, MEANS FOR CONDUCTING THE PREHEATED AIR FROM SAID RECUPERATOR AIR PASSAGE TO SAID BURNER, AND A FUEL LINE EXTENDING FROM SAID FILTER TANK TO SAID BURNER.
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) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |