Patent US2719873A successfully refreshed from Google Patents.
US2719873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for converting hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1951-10-09
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Granted: 1955-10-04
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Expires: 1971-10-09
Abstract
No abstract record available.
Inventors
- 👤 Robert R Goins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:09
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/087; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/0007; B01J2208/00327; B01J2208/00336; B01J2208/0038; B01J2208/00477; B01J2208/00495
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
AN IMPROVED PEBBLE HEAT EXCHANGE CHAMBER ASSEMBLY COMPRISING IN COMBINATION AN UPRIGHT, CLOSED, ELONGATED SHELL HAVING A FLUID INLET AND A FLUID OUTLET THEREIN; PEBBLE INLET MEANS IN THE UPPER END OF SAID CHAMBER, SAID PEBBLE INLET MEANS HAVING AN INTERIOR SECTION OF EXPANDED CROSS SECTION, THE SLOPE OF THE INNER SURFACE IN THE LOWER PORTION OF SAID EXPANDED CROSS SECTION EXTENDING DOWNWARDLY AND INWARDLY FROM THE HORIZONTAL BY AN ANGLE WITHIN THE RANGE OF BETWEEN 28* AND 35*; GASEOUS MATERIAL INLET MEANS IN THE PORTION OF LARGEST CROSS SECTION; AND PEBBLE OUTLET MEANS IN THE LOWER END OF SAID CHAMBER.
Claim 2
Dependent Claim
101 words
AN IMPROVED PEBBLE HEAT EXCHANGE CHAMBER ASSEMBLY COMPRISING IN COMBINATION AN UPRIGHT, CLOSED, ELONGATED SHELL HAVING A FLUID INLET AND A FLUID OUTLET THEREIN; PEBBLE INLET MEANS IN THE UPPER END OF SAID CHAMBER, SAID PEBBLE INLET MEANS HAVING AN INTERIOR SECTION OF EXPANDED CROSS SECTION, THE SLOPE OF THE INNER SURFACE IN THE LOWER PORTION OF SAID EXPANDED CROSS SECTION EXTENDING DOWNWARDLY AND INWARDLY FROM THE HORIZONTAL BY AN ANGLE WITHIN THE RANGE OF BETWEEN 28* AND 35*; GASEOUS MATERIAL INLET MEANS IN THE PORTION OF LARGEST CROSS SECTION; AND PEBBLE OUTLET MEANS IN THE LOWER END OF SAID CHAMBER.
Claim 3
Independent Claim
33 words
THE METHOD OF OPERATING A PEBBLE HEATER IN THE CONVERSION OF HYDROCARBONS WHILE PREVENTING THERMAL SHOCK OF PEBBLES THEREIN WHICH COMPRISES GRAVITATING A MASS OF PEBBLES DOWNWARDLY THROUGH A PEBBLE HEATING ZONE; HEAT.
Claim 4
Independent Claim
33 words
THE METHOD OF OPERATING A PEBBLE HEATER IN THE CONVERSION OF HYDROCARBONS WHILE PREVENTING THERMAL SHOCK OF PEBBLES THEREIN WHICH COMPRISES GRAVITATING A MASS OF PEBBLES DOWNWARDLY THROUGH A PEBBLE HEATING ZONE; HEAT.
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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) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |