US3006740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting vessel with solids bed and screens
Assignee: Shell USA Inc
•
Filing: 1958-03-03
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Granted: 1961-10-31
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Maggio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0292; B01D; B01D46/00; B01D46/30; B01J8/0278; C; C10; C10K; C10K1/00; C10K1/20; C10K1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
APPARATUS FOR EFFECTING CONTACT BETWEEN A FLUID AND GRANULAR SOLIDS WHICH COMPRISES: A TANK, A BED OF GRANULAR CONTACTING SOLIDS WITHIN A PORTION OF SAID TANK CONSTITUTING A SOLIDS CHAMBER, AN ADJOINING PORTION OF SAID TANK CONSTITUTING AN ANTECHAMBER, SAID BED HAVING AN END SURFACE DIRECTED TOWARD AND IN FLOW COMMUNICATION WITH SAID ANTECHAMBER THROUGHOUT AN AREA SUBSTANTIALLY EQUAL TO THE FULL CROSS SECTION OF THE BED FOR THE DISTRIBUTED ENTRY OF FLUID FROM THE ANTECHAMBER INTO THE BED, SAID END SURFACE BEING FORMED WITH A PLURALITY OF DEPRESSIONS WHICH ARE DISTRIBUTED OVER SAID END SURFACE SO AS TO EXTEND THE TOTAL ENTRY SURFACE AREA OF THE BED, SAID DEPRESSIONS PROJECTING INTO THE BED FOR DISTANCES WHICH ARE MINOR FRACTIONS OF THE DEPTH OF THE BED BUT SUFFICIENTLY DEEP TO PROVIDE, COLLECTIVELY, AN ADDITIONAL ENTRY SURFACE AREA GREATER THAN THE CROSS SECTIONAL BED AREA, SCREENING MEANS SITUATED WITHIN EACH OF SAID DEPRESSIONS IN LATERAL
Claim 2
Dependent Claim
154 words
APPARATUS FOR EFFECTING CONTACT BETWEEN A FLUID AND GRANULAR SOLIDS WHICH COMPRISES: A TANK, A BED OF GRANULAR CONTACTING SOLIDS WITHIN A PORTION OF SAID TANK CONSTITUTING A SOLIDS CHAMBER, AN ADJOINING PORTION OF SAID TANK CONSTITUTING AN ANTECHAMBER, SAID BED HAVING AN END SURFACE DIRECTED TOWARD AND IN FLOW COMMUNICATION WITH SAID ANTECHAMBER THROUGHOUT AN AREA SUBSTANTIALLY EQUAL TO THE FULL CROSS SECTION OF THE BED FOR THE DISTRIBUTED ENTRY OF FLUID FROM THE ANTECHAMBER INTO THE BED, SAID END SURFACE BEING FORMED WITH A PLURALITY OF DEPRESSIONS WHICH ARE DISTRIBUTED OVER SAID END SURFACE SO AS TO EXTEND THE TOTAL ENTRY SURFACE AREA OF THE BED, SAID DEPRESSIONS PROJECTING INTO THE BED FOR DISTANCES WHICH ARE MINOR FRACTIONS OF THE DEPTH OF THE BED BUT SUFFICIENTLY DEEP TO PROVIDE, COLLECTIVELY, AN ADDITIONAL ENTRY SURFACE AREA GREATER THAN THE CROSS SECTIONAL BED AREA, SCREENING MEANS SITUATED WITHIN EACH OF SAID DEPRESSIONS IN LATERAL
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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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |