US3071540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil feed system for fluid catalytic cracking unit
Assignee: MW Kellogg Co
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Filing: 1959-10-27
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Granted: 1963-01-01
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Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Mcmahon
- 👤 Geoffrey P Jamieson
- 👤 Ozkardes Haldun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; B01J4/002; B01J19/00; B01J19/26; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD FOR INTRODUCING HIGH-BOILING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED SOLID CONTACT MATERIAL WHICH COMPRISES PREHEATING A HIGH-BOILING HYDROCARBON FEED TO AN ELEVATED TEMPERATURE BUT BELOW SUBSTANTIAL VAPORIZATION OF SAID HYDROCARBON FEED, PASSING SAID HEATED HYDROCARBON THROUGH A CONFINED PASSAGEWAY PROVIDED WITH A DISCHARGE ORIFICE, SAID CONFINED PASSAGEWAY BEING SURROUNDED BY AN ANNULAR PASSAGEWAY HAVING A DISCHARGE ORIFICE ALIGNED WITH THE DISCHARGE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING A GASEOUS MATERIAL THROUGH SAID ANNULAR PASSAGEWAY FOR ADMIXTURE WITH SAID HEATED HYDROCARBON DISCHARGED FROM THE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING THE MIXTURE OF HYDROCARBON
Claim 2
Independent Claim
95 words
A METHOD FOR INTRODUCING HIGH-BOILING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED SOLID CONTACT MATERIAL WHICH COMPRISES PREHEATING A HIGH-BOILING HYDROCARBON FEED TO AN ELEVATED TEMPERATURE BUT BELOW SUBSTANTIAL VAPORIZATION OF SAID HYDROCARBON FEED, PASSING SAID HEATED HYDROCARBON THROUGH A CONFINED PASSAGEWAY PROVIDED WITH A DISCHARGE ORIFICE, SAID CONFINED PASSAGEWAY BEING SURROUNDED BY AN ANNULAR PASSAGEWAY HAVING A DISCHARGE ORIFICE ALIGNED WITH THE DISCHARGE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING A GASEOUS MATERIAL THROUGH SAID ANNULAR PASSAGEWAY FOR ADMIXTURE WITH SAID HEATED HYDROCARBON DISCHARGED FROM THE ORIFICE OF SAID CONFINED PASSAGEWAY, PASSING THE MIXTURE OF HYDROCARBON
References Cited (Backward Citations)
US2044296A
Cited
US2335188A
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US2780586A
Cited
US2872411A
Cited
US2904504A
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US2937988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |