US2820702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst-supporting drain for catalytic reactants
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-10-31
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Granted: 1958-01-21
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Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A REACTOR FOR TREATING A FLUENT MATERIAL WITH A FINELY DIVIDED SOLID COMPRISING A VESSEL HAVING WALLS DEFINING A CHAMBER WHEREIN SAID FLUENT MATERIAL AND SAID SOLID MAY BE BROUGHT INTO CONTACT WITH EACH OTHER, SAID CHAMBER HAVING AN UPPER INLET OPENING AND A LOWER OUTLET OPENING, SAID LOWER OUTLET OPENING HAVING A DIAMETER LESS THAN THE MAXIMUM DIAMETER OF SAID CHAMBER, A SOLIDS-SUPPORTING DRAIN NESTED AT THE BOTTOM THEREOF IN SAID OUTLET OPENING AND EXTENDING UPWARDLY INTO SAID CHAMBER, SAID DRAIN COMPRISING UPSTANDING CONCENTRICALLY SPACED WALL MEMBERS DEFINING AN ANNULAR DRAINAGE SPACE AND A DRAIN PORT, SAID DRAIN PORT BEING OPEN TO SAID CHAMBER FOR THE ADMISSION OF A PORTION OF SAID FINELY DIVIDED SOLID, A RING-SHAPED COVER PLATE CLOSING SAID DRAINAGE SPACE AT THE TOP THEREOF, A SOLIDS SUPPORTING DRAIN PORT DOOR HINGED TO THE BOTTOM
Claim 2
Dependent Claim
138 words
A REACTOR FOR TREATING A FLUENT MATERIAL WITH A FINELY DIVIDED SOLID COMPRISING A VESSEL HAVING WALLS DEFINING A CHAMBER WHEREIN SAID FLUENT MATERIAL AND SAID SOLID MAY BE BROUGHT INTO CONTACT WITH EACH OTHER, SAID CHAMBER HAVING AN UPPER INLET OPENING AND A LOWER OUTLET OPENING, SAID LOWER OUTLET OPENING HAVING A DIAMETER LESS THAN THE MAXIMUM DIAMETER OF SAID CHAMBER, A SOLIDS-SUPPORTING DRAIN NESTED AT THE BOTTOM THEREOF IN SAID OUTLET OPENING AND EXTENDING UPWARDLY INTO SAID CHAMBER, SAID DRAIN COMPRISING UPSTANDING CONCENTRICALLY SPACED WALL MEMBERS DEFINING AN ANNULAR DRAINAGE SPACE AND A DRAIN PORT, SAID DRAIN PORT BEING OPEN TO SAID CHAMBER FOR THE ADMISSION OF A PORTION OF SAID FINELY DIVIDED SOLID, A RING-SHAPED COVER PLATE CLOSING SAID DRAINAGE SPACE AT THE TOP THEREOF, A SOLIDS SUPPORTING DRAIN PORT DOOR HINGED TO THE BOTTOM
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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |