Patent US3215508A successfully refreshed from Google Patents.
US3215508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas distributor
Assignee: PPG Industries Inc
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Filing: 1962-03-15
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Granted: 1965-11-02
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Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Loyd W Piester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:41
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; B; B01; B01J; B01J8/00; B01J8/02; B01J8/0278; B01J8/18; B01J8/1818; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A FLUID BED CATALYTIC REACTOR A GAS DISTRIBUTOR LOCATED AT THE BOTTOM THEREOF, SAID DISTRIBUTOR COMPRISING A TOP, A BOTTOM AND SIDE WALLS, A PLATE POSITIONED BETWEEN THE TOP AND BOTTOM AND IN COMMUNICATION WITH THE SIDE WALLS WHICH FORMS TWO SUPERIMPOSED CHAMBERS BETWEEN THE TOP AND BOTTOM; THE UPPERMOST CHAMBER BEING FORMED BY THE TOP OF THE DISTRIBUTOR, SAID PLATE AND SIDE MEMBERS AFFIXED TO SAID TOP AND SAID PLATES, A HOLLOW TUBULAR MEMBER TRAVERSING SAID PLATES AND SAID TOP, SAID TUBULAR MEMBER BEING IN COMMUNICATION WITH THE LOWERMOST OF SAID TWO CHAMBERS AND TERMINATING AT A POINT AT LEAST 3 INCHES ABOVE SAID TOP, AN ORIFICE LOCATED IN SAID TUBULAR MEMBER AT A POINT AT LEAST 3 INCHES ABOVE SAID TOP, A PLURALITY OF ORIFICES LOCATED IN SAID TOP, AN OPENING IN SAID PLATE COMMUNICATING WITH A CLOSED CONDUIT WHICH TRANVERSES THE LOWERMOST CHAMBER, A FIRST MEANS FOR INTRODUCING GAS THROUGH SAID CONDUIT TO THE UPPERMOST CHAMBER AND A SECOND MEANS FOR INTRODUCING GAS INTO THE LOWERMOST CHAMBER.
Claim 2
Dependent Claim
171 words
IN A FLUID BED CATALYTIC REACTOR A GAS DISTRIBUTOR LOCATED AT THE BOTTOM THEREOF, SAID DISTRIBUTOR COMPRISING A TOP, A BOTTOM AND SIDE WALLS, A PLATE POSITIONED BETWEEN THE TOP AND BOTTOM AND IN COMMUNICATION WITH THE SIDE WALLS WHICH FORMS TWO SUPERIMPOSED CHAMBERS BETWEEN THE TOP AND BOTTOM; THE UPPERMOST CHAMBER BEING FORMED BY THE TOP OF THE DISTRIBUTOR, SAID PLATE AND SIDE MEMBERS AFFIXED TO SAID TOP AND SAID PLATES, A HOLLOW TUBULAR MEMBER TRAVERSING SAID PLATES AND SAID TOP, SAID TUBULAR MEMBER BEING IN COMMUNICATION WITH THE LOWERMOST OF SAID TWO CHAMBERS AND TERMINATING AT A POINT AT LEAST 3 INCHES ABOVE SAID TOP, AN ORIFICE LOCATED IN SAID TUBULAR MEMBER AT A POINT AT LEAST 3 INCHES ABOVE SAID TOP, A PLURALITY OF ORIFICES LOCATED IN SAID TOP, AN OPENING IN SAID PLATE COMMUNICATING WITH A CLOSED CONDUIT WHICH TRANVERSES THE LOWERMOST CHAMBER, A FIRST MEANS FOR INTRODUCING GAS THROUGH SAID CONDUIT TO THE UPPERMOST CHAMBER AND A SECOND MEANS FOR INTRODUCING GAS INTO THE LOWERMOST CHAMBER.
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |