Patent US2628158A successfully refreshed from Google Patents.
US2628158A
Expired / Lapsed
US
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Catalyst stripping vessel
Assignee: Sinclair Refining Co
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Filing: 1950-03-06
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Granted: 1953-02-10
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Expires: 1970-03-06
Abstract
No abstract record available.
Inventors
- 👤 Wilcox Marion James
- 👤 Elmer F Schade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:41
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0441; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/598; Y10T137/8593; Y10T137/877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A SPENT CATALYST STRIPPING VESSEL OF A HYDROCARBON CRACKING UNIT EMPLOYING FINELY DIVIDED SOLID CATALYST, A PLURALITY OF STEAM INJECTION MEANS EACH COMPRISING A GATE VALVE HAVING THE FLANGE OF ONE OPENING CONNECTED TO SAID VESSEL IN FLUID COMMUNICATION THEREWITH, A PIPE SECTION CONNECTED AT ITS INNER END TO THE FLANGE OF THE OTHER OPENING OF SAID GATE VALVE, A PACKING GLAND AND FITTING MEANS ADJUSTABLY CONNECTED TO THE OUTER END OF SAID PIPE SECTION, A STEAM LANCE MOUNTED AT ITS OUTER END IN SAID PACKING GLAND AND FITTING MEANS SEALABLY ENGAGED THEREBY, SAID STEAM LANCE EXTENDING INWARDLY TO SAID STRIPPING VESSEL AND HORIZONTALLY ACROSS ITS INTERNAL CROSS SECTION, SAID STEAM LANCE HAVING A PLURALITY OF RESTRICTED ORIFICES IN THE UPPER SURFACE THEREOF SIZED TO DISCHARGE STEAM AT A
Claim 2
Dependent Claim
130 words
IN A SPENT CATALYST STRIPPING VESSEL OF A HYDROCARBON CRACKING UNIT EMPLOYING FINELY DIVIDED SOLID CATALYST, A PLURALITY OF STEAM INJECTION MEANS EACH COMPRISING A GATE VALVE HAVING THE FLANGE OF ONE OPENING CONNECTED TO SAID VESSEL IN FLUID COMMUNICATION THEREWITH, A PIPE SECTION CONNECTED AT ITS INNER END TO THE FLANGE OF THE OTHER OPENING OF SAID GATE VALVE, A PACKING GLAND AND FITTING MEANS ADJUSTABLY CONNECTED TO THE OUTER END OF SAID PIPE SECTION, A STEAM LANCE MOUNTED AT ITS OUTER END IN SAID PACKING GLAND AND FITTING MEANS SEALABLY ENGAGED THEREBY, SAID STEAM LANCE EXTENDING INWARDLY TO SAID STRIPPING VESSEL AND HORIZONTALLY ACROSS ITS INTERNAL CROSS SECTION, SAID STEAM LANCE HAVING A PLURALITY OF RESTRICTED ORIFICES IN THE UPPER SURFACE THEREOF SIZED TO DISCHARGE STEAM AT A
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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |