Patent US2780587A successfully refreshed from Google Patents.
US2780587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon coking process
Assignee: Universal Oil Products Co
•
Filing: 1953-12-04
•
Granted: 1957-02-05
•
Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Charles H Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:48
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/24; C10G47/30; C10G9/00; C10G9/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A COKING PROCESS WHICH COMPRISES PASSING AN ASPHALTIC CHARGE STOCK BENEATH THE SURFACE OF A MOLTEN MEDIUM MAINTAINED IN THE LOWER PORTION OF A COKING ZONE AT COKING CONDITIONS, PRECIPITATING ASPHALTIC MATERIAL AS FINELY DIVIDED PARTICLES, COLLECTING SAID PRECIPITATED PARTICLES AT THE SURFACE OF SAID MOLTEN MEDIUM AND ENTRAINING THEM IN AN ASCENDING GAS STREAM TO FORM A FLUIDIZED BED IN AN OPENLY COMMUNICATING SUPERIMPOSED ZONE, CONTACTING VAPORS OF UNPRECIPITATED MATERIAL WITH SAID FLUIDIZED BED OF PARTICLES AT A TEMPERATURE AND FORA TIME SUFFICIENT TO CONVERT SAID UNPRECIPITATED MATERIAL TO COKE AND LOWER BOILING MATERIAL AND SEPARATELY RECOVERING SAID LOWER BOILING MATERIAL AND SAID SOLID COKE PARTICLES.
Claim 2
Dependent Claim
107 words
A COKING PROCESS WHICH COMPRISES PASSING AN ASPHALTIC CHARGE STOCK BENEATH THE SURFACE OF A MOLTEN MEDIUM MAINTAINED IN THE LOWER PORTION OF A COKING ZONE AT COKING CONDITIONS, PRECIPITATING ASPHALTIC MATERIAL AS FINELY DIVIDED PARTICLES, COLLECTING SAID PRECIPITATED PARTICLES AT THE SURFACE OF SAID MOLTEN MEDIUM AND ENTRAINING THEM IN AN ASCENDING GAS STREAM TO FORM A FLUIDIZED BED IN AN OPENLY COMMUNICATING SUPERIMPOSED ZONE, CONTACTING VAPORS OF UNPRECIPITATED MATERIAL WITH SAID FLUIDIZED BED OF PARTICLES AT A TEMPERATURE AND FORA TIME SUFFICIENT TO CONVERT SAID UNPRECIPITATED MATERIAL TO COKE AND LOWER BOILING MATERIAL AND SEPARATELY RECOVERING SAID LOWER BOILING MATERIAL AND SAID SOLID COKE PARTICLES.
References Cited (Backward Citations)
US1187874A
Cited
US1734970A
Cited
US1974683A
Cited
US2015085A
Cited
US1955041A
Cited
US2100823A
Cited
FR858158A
Cited
US2334583A
Cited
US2443714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |