US2951747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid desing for fluid bed reactor
Assignee: Pan American Petroleum Corp
•
Filing: 1957-12-23
•
Granted: 1960-09-06
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Roscoe F Vandaveer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS COMPRISING IN COMBINATION A REACTION VESSEL ADAPTED TO CONTAIN A BED OF FLUIDIZED SOLIDS IN A GASEOUS MEDIUM, IN THE LOWER PORTION OF SAID VESSEL A GRID COMPRISING A STRUCTURALLY STABLE POROUS PLATE, A TOUGH, FLEXIBLE POROUS FIBROUS COVERING SECURED OVER THE TOP OF SAID PLATE, MEANS SECURING A PERFORATED PLATE BELOW SAID POROUS PLATE IN GAS-TIGHT RELATION TO THE WALLS OF SAID VESSEL, MEANS TO ATTACH SAID POROUS PLATE TO SAID PERFORATED PLATE AND AN ANNULAR SUPPORT SURROUNDING THE UNDERNEATH OUTER SIDE OF SAID POROUS PLATE FORMING A GAS-TIGHT SEAL THEREWITH AND RESTING ON SAID PERFORATED PLATE TO DEFINE A HOLLOW SPACE BETWEEN SAID POROUS PLATE
Claim 2
Dependent Claim
108 words
APPARATUS COMPRISING IN COMBINATION A REACTION VESSEL ADAPTED TO CONTAIN A BED OF FLUIDIZED SOLIDS IN A GASEOUS MEDIUM, IN THE LOWER PORTION OF SAID VESSEL A GRID COMPRISING A STRUCTURALLY STABLE POROUS PLATE, A TOUGH, FLEXIBLE POROUS FIBROUS COVERING SECURED OVER THE TOP OF SAID PLATE, MEANS SECURING A PERFORATED PLATE BELOW SAID POROUS PLATE IN GAS-TIGHT RELATION TO THE WALLS OF SAID VESSEL, MEANS TO ATTACH SAID POROUS PLATE TO SAID PERFORATED PLATE AND AN ANNULAR SUPPORT SURROUNDING THE UNDERNEATH OUTER SIDE OF SAID POROUS PLATE FORMING A GAS-TIGHT SEAL THEREWITH AND RESTING ON SAID PERFORATED PLATE TO DEFINE A HOLLOW SPACE BETWEEN SAID POROUS PLATE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |