Patent US2558769A successfully refreshed from Google Patents.
US2558769A
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Process for control of hydrocarbon reactions in moving solids contacting systems
Assignee: Houdry Process Corp
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Filing: 1948-01-02
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Granted: 1951-07-03
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Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 Dwight D Mckinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:22
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A PROCESS FOR THE CONVERSION OF HEAVY PETROLEUM STOCKS WHICH ARE CHARGED TO A REACTION ZONE IN AT LEAST PARTIALLY LIQUID PHASE, AND WHEREIN SUCH CONVERSION IS EFFECTED IN THE PRESENCE OF A BED OF GRAVITATIONALLY MOVING CONTACT MATERIAL, THE IMPROVEMENT COMPRISING INTRODUCING FROM A SUPPLY ZONE A FIRST PORTION OF CLEAN CONTACT MATERIAL AT CONVERSION CONDITIONS TO A REACTION ZONE TO FORM THE UPPER SURFACE OF A GRAVITATIONALLY DESCENDING BED OF SUCH CONTACT MATERIAL IN SAID REACTION ZONE, SUPPLYING HEAVY PETROLEUM STOCK TO THE UPPER SURFACE OF SAID BED BY DISPERSING SAID STOCK AS A SPRAY ONTO DESCENDING CONTACT MATERIAL FROM A LIQUID DISTRIBUTING SOURCE ABOVE SAID BED, AND INTRODUCING A SECOND PORTION OF THE CLEAN CONTACT MATERIAL FROM SAID SUPPLY ZONE AT HYDROCARBON CONVERSION CONDITIONS INTO SAID DE-
Claim 2
Dependent Claim
131 words
IN A PROCESS FOR THE CONVERSION OF HEAVY PETROLEUM STOCKS WHICH ARE CHARGED TO A REACTION ZONE IN AT LEAST PARTIALLY LIQUID PHASE, AND WHEREIN SUCH CONVERSION IS EFFECTED IN THE PRESENCE OF A BED OF GRAVITATIONALLY MOVING CONTACT MATERIAL, THE IMPROVEMENT COMPRISING INTRODUCING FROM A SUPPLY ZONE A FIRST PORTION OF CLEAN CONTACT MATERIAL AT CONVERSION CONDITIONS TO A REACTION ZONE TO FORM THE UPPER SURFACE OF A GRAVITATIONALLY DESCENDING BED OF SUCH CONTACT MATERIAL IN SAID REACTION ZONE, SUPPLYING HEAVY PETROLEUM STOCK TO THE UPPER SURFACE OF SAID BED BY DISPERSING SAID STOCK AS A SPRAY ONTO DESCENDING CONTACT MATERIAL FROM A LIQUID DISTRIBUTING SOURCE ABOVE SAID BED, AND INTRODUCING A SECOND PORTION OF THE CLEAN CONTACT MATERIAL FROM SAID SUPPLY ZONE AT HYDROCARBON CONVERSION CONDITIONS INTO SAID DE-
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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |