Patent US2745722A successfully refreshed from Google Patents.
US2745722A
Expired / Lapsed
US
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Apparatus for calking catalyst bed
Assignee: Monsanto Chemicals Ltd
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Filing: 1953-06-17
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Granted: 1956-05-15
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Victor A Lacoste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:21
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B01J8/008; B01J8/08; B01J8/12; B01J2208/00; B01J2208/00796; B01J2208/00884
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A REACTOR COMPRISING A WALL DEFINING A REACTION CHAMBER CONTAINING A HORIZONTALLY DISPOSED BED OF FINELYDIVIDED CATALYST, CALKING APPARATUS FOR DEPOSITING A SUPPLY OF FRESH CATALYST ABOUT THE PERIPHERAL EDGE OF SAID CATALYST BED IN ORDER TO COMPENSATE FOR RADICAL CONTRACTION THEREOF, SAID CALKING APPARATUS COMPRISING A GAS-TIGHT SEAL IN SAID WALL ABOVE SAID CATALYST BED, A ROTATABLE CONDUIT OF COMPARATIVELY SMALL CROSS-SECTIONAL AREA ENTERING SAID CHAMBER THROUGH SAID SEAL AND TERMINATING IN A DISCHARGE END AT A POINT ABOVE AND IN PROXIMITY TO THE PERIPHERAL EDGE OF SAID CATALYST BED, AND MEANS CONNECTED TO SAID CONDUIT FOR MAINTAINING SAID DISCHARGE END OF SAID CONDUIT ABOVE AND IN CLOSE PROMIMITY TO SAID PERIPHERAL EDGE AS SAID CONDUIT IS ROTATED.
Claim 2
Dependent Claim
120 words
IN A REACTOR COMPRISING A WALL DEFINING A REACTION CHAMBER CONTAINING A HORIZONTALLY DISPOSED BED OF FINELYDIVIDED CATALYST, CALKING APPARATUS FOR DEPOSITING A SUPPLY OF FRESH CATALYST ABOUT THE PERIPHERAL EDGE OF SAID CATALYST BED IN ORDER TO COMPENSATE FOR RADICAL CONTRACTION THEREOF, SAID CALKING APPARATUS COMPRISING A GAS-TIGHT SEAL IN SAID WALL ABOVE SAID CATALYST BED, A ROTATABLE CONDUIT OF COMPARATIVELY SMALL CROSS-SECTIONAL AREA ENTERING SAID CHAMBER THROUGH SAID SEAL AND TERMINATING IN A DISCHARGE END AT A POINT ABOVE AND IN PROXIMITY TO THE PERIPHERAL EDGE OF SAID CATALYST BED, AND MEANS CONNECTED TO SAID CONDUIT FOR MAINTAINING SAID DISCHARGE END OF SAID CONDUIT ABOVE AND IN CLOSE PROMIMITY TO SAID PERIPHERAL EDGE AS SAID CONDUIT IS ROTATED.
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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |