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US2737294A
Expired / Lapsed
US
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Surface level control in a compact solids bed
Assignee: Sunoco Inc
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Filing: 1951-12-11
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Granted: 1956-03-06
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Expires: 1971-12-11
Abstract
No abstract record available.
Inventors
- 👤 William L Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:10
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
METHOD FOR AUTOMATICALLY CONTROLLING THE UPPER SURFACE LEVEL OF A MOVING COMPACT BED OF GRANULAR SOLIDS, TO THE TOP OF WHICH GRANULAR SOLIDS ARE SUPPLIED, AND FROM THE BOTTOM OF WHICH GRANULAR SOLIDS ARE WITHDRAWN WHICH COMPRISES: GRAVITATING GRANULAR SOLIDS AS A COMPACT MASS THROUGH A RESTRICTED ORIFICE AS A FALLING STREAM GRAVITATING SOLIDS BENEATH SAID ORIFICE AS A FALLING STREAM ONTO THE TOP OF SAID MOVING COMPACT BED IN A LOWER ZONE; INTRODUCING THE FIRST STREAM OF GAS INTO SAID LOWER ZONE AT A LEVEL NOT SUBSTANTIALLY ABOVE THE UPPER SURFACE OF SAID COMPACT BED, THE PRESSURE DROP UNDERGONE BY SAID FIRST STREAM DURING SUCH INTRODUCTION INCREASING WHEN THE VERTICAL DISTANCE OF THE UPPER SURFACE OF SAID COMPACT BED ABOVE A PREDETERMINED LEVEL INCREASE, AND SAID
Claim 2
Dependent Claim
127 words
METHOD FOR AUTOMATICALLY CONTROLLING THE UPPER SURFACE LEVEL OF A MOVING COMPACT BED OF GRANULAR SOLIDS, TO THE TOP OF WHICH GRANULAR SOLIDS ARE SUPPLIED, AND FROM THE BOTTOM OF WHICH GRANULAR SOLIDS ARE WITHDRAWN WHICH COMPRISES: GRAVITATING GRANULAR SOLIDS AS A COMPACT MASS THROUGH A RESTRICTED ORIFICE AS A FALLING STREAM GRAVITATING SOLIDS BENEATH SAID ORIFICE AS A FALLING STREAM ONTO THE TOP OF SAID MOVING COMPACT BED IN A LOWER ZONE; INTRODUCING THE FIRST STREAM OF GAS INTO SAID LOWER ZONE AT A LEVEL NOT SUBSTANTIALLY ABOVE THE UPPER SURFACE OF SAID COMPACT BED, THE PRESSURE DROP UNDERGONE BY SAID FIRST STREAM DURING SUCH INTRODUCTION INCREASING WHEN THE VERTICAL DISTANCE OF THE UPPER SURFACE OF SAID COMPACT BED ABOVE A PREDETERMINED LEVEL INCREASE, AND SAID
References Cited (Backward Citations)
US2331208A
Cited
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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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |