Patent US2601676A successfully refreshed from Google Patents.
US2601676A
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Control of flow of fluidized solids
Assignee: Shell Development Co
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Filing: 1950-03-10
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Granted: 1952-06-24
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Expires: 1970-03-10
Abstract
No abstract record available.
Inventors
- 👤 Richard P Trainer
- 👤 Lawson E Border
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:28
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1809; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/187; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/0007; B01J2208/00106; B01J2208/00168; B01J2208/00256; B01J2208/00265; B01J2208/00274; B01J2208/00548; Y; Y10; Y10S; Y10S208/00; Y10S208/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A PROCESS WHEREIN A BED OF CONTINUOUSLY REPLENISHED FLUIDIZED SOLID IS CONTINUOUSLY MAINTAINED IN A VESSEL, THE METHOD OF CONTROLLING THE RATE OF WITHDRAWAL OF FLUIDIZED SOLID FROM SAID BED THROUGH AN ORIFICE OF CONTROLLABLE AREA WHICH COMPRISES CONTROLLING THE PRESSURE ABOVE THE SAID FLUIDIZED BED IN INVERSE RELATIONSHIP TO AND IN RESPONSE TO CHANGES IN THE DIFFERENTIAL PRESSURE MEASURED ACROSS SAID ORIFICE, AND CONTROLLING THE AREA OF SAID ORIFICE IN DIRECT RELATIONSHIP TO AND IN RESPONSE TO CHANGES IN THE DIFFERENTIAL PRESSURE MEASURED BETWEEN SAID PRESSURE ABOVE SAID FLUIDIZED BED AND THE PRESSURE AT A POINT WITHIN THE SAID FLUIDIZED BED.
Claim 2
Dependent Claim
103 words
IN A PROCESS WHEREIN A BED OF CONTINUOUSLY REPLENISHED FLUIDIZED SOLID IS CONTINUOUSLY MAINTAINED IN A VESSEL, THE METHOD OF CONTROLLING THE RATE OF WITHDRAWAL OF FLUIDIZED SOLID FROM SAID BED THROUGH AN ORIFICE OF CONTROLLABLE AREA WHICH COMPRISES CONTROLLING THE PRESSURE ABOVE THE SAID FLUIDIZED BED IN INVERSE RELATIONSHIP TO AND IN RESPONSE TO CHANGES IN THE DIFFERENTIAL PRESSURE MEASURED ACROSS SAID ORIFICE, AND CONTROLLING THE AREA OF SAID ORIFICE IN DIRECT RELATIONSHIP TO AND IN RESPONSE TO CHANGES IN THE DIFFERENTIAL PRESSURE MEASURED BETWEEN SAID PRESSURE ABOVE SAID FLUIDIZED BED AND THE PRESSURE AT A POINT WITHIN THE SAID FLUIDIZED BED.
References Cited (Backward Citations)
US2327175A
Cited
US2438728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |