US2635949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting solids with fluids
Assignee: Standard Oil Development Co
•
Filing: 1949-03-24
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Granted: 1953-04-21
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Expires: 1969-03-24
Abstract
No abstract record available.
Inventors
- 👤 Merrell R Fenske
- 👤 Iii Thomas M Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01J8/16; B01J8/18; B01J8/24; B01J8/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN APPARATUS FOR CONTACTING GASES WITH FINELY DIVIDED SOLIDS WHICH COMPRISES A VERTICALLY EXTENDING CYLINDRICAL CHAMBER ADAPTED TO CONTAIN A BODY OF SAID SOLIDS, MEANS FOR INTRODUCING A STREAM OF SAID SOLIDS INTO THE UPPER END OF SAID CHAMBER AND FOR WITHDRAWING SOLIDS FROM THE BOTTOM PORTION THEREOF, MEANS FOR INTRODUCING GASES TO BE CONTACTED INTO THE BOTTOM PORTION OF SAID CHAMBER AND FOR WITHDRAWING GASES FROM THE UPPER PORTION THEREOF, A VERTICAL SHAFT MOVABLY MOUNTED IN SAID CHAMBER, MEANS FOR RECIPROCATING SAID SHAFT AT AN AMPLITUDE BETWEEN 0.1 AND 1.0 INCH AND AT A FREQUENCY BETWEEN 500 AND 2000 CYCLES PER MINUTE, AND A PLURALITY OF VERTICALLY SPACED FORAMINOUS HORIZONTAL DISC-SHAPED MEMBERS RIGIDLY MOUNTED ON SAID SHAFT, THE OPEN SPACE IN EACH FORAMINOUS MEMBER BEING FROM
Claim 2
Independent Claim
127 words
AN APPARATUS FOR CONTACTING GASES WITH FINELY DIVIDED SOLIDS WHICH COMPRISES A VERTICALLY EXTENDING CYLINDRICAL CHAMBER ADAPTED TO CONTAIN A BODY OF SAID SOLIDS, MEANS FOR INTRODUCING A STREAM OF SAID SOLIDS INTO THE UPPER END OF SAID CHAMBER AND FOR WITHDRAWING SOLIDS FROM THE BOTTOM PORTION THEREOF, MEANS FOR INTRODUCING GASES TO BE CONTACTED INTO THE BOTTOM PORTION OF SAID CHAMBER AND FOR WITHDRAWING GASES FROM THE UPPER PORTION THEREOF, A VERTICAL SHAFT MOVABLY MOUNTED IN SAID CHAMBER, MEANS FOR RECIPROCATING SAID SHAFT AT AN AMPLITUDE BETWEEN 0.1 AND 1.0 INCH AND AT A FREQUENCY BETWEEN 500 AND 2000 CYCLES PER MINUTE, AND A PLURALITY OF VERTICALLY SPACED FORAMINOUS HORIZONTAL DISC-SHAPED MEMBERS RIGIDLY MOUNTED ON SAID SHAFT, THE OPEN SPACE IN EACH FORAMINOUS MEMBER BEING FROM
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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) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |