US2767128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for contacting solids with fluids
Assignee: Houdry Process Corp
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Filing: 1951-05-02
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Granted: 1956-10-16
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Expires: 1971-05-02
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Burtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF CONTACTING PARTICLE-FORM SOLIDS WITH LIQUIDS WHICH COMPRISES THE STEPS OF PASSING SAID SOLIDS DOWNWARDLY AS A COMPACT MOVING BED PARTLY FILLING A CONFINED REACTION ZONE, CONTINUOUSLY INTRODUCING AT LEAST ONE COMPACT MOVING COLUMN OF SAID SOLIDS DIRECTLY ONTO THE SURFACE OF SAID BED SO AS TO MAINTAIN A CONSTANT BED LEVEL, INTRODUCING AN UPWARDLY DIRECTED STREAM COMPRISING SAID LIQUID INTO SAID BED FROM A LOCATION BELOW THE SURFACE THEREOF SO AS TO CONTACT SAID SOLIDS AND CONVEY THE SAME UPWARDLY, PASSING THE UPWARDLY CONVEYED STREAM OF LIQUID-CONTACTED SOLIDS INTO AND THROUGH A SHORT CONFINED PATH EXTENDING UPWARDLY FROM A LOCATION WITHIN SAID BED SPACED AXIALLY ABOVE THE INCOMING STREAM TO A LOW POINT WITHIN THE SPACE ABOVE THE SURFACE OF SAID BED, AND DISTRIBUTING SAID LIQUID-CONTACTED SOLIDS OVER THE SURFACE
Claim 2
Independent Claim
133 words
THE METHOD OF CONTACTING PARTICLE-FORM SOLIDS WITH LIQUIDS WHICH COMPRISES THE STEPS OF PASSING SAID SOLIDS DOWNWARDLY AS A COMPACT MOVING BED PARTLY FILLING A CONFINED REACTION ZONE, CONTINUOUSLY INTRODUCING AT LEAST ONE COMPACT MOVING COLUMN OF SAID SOLIDS DIRECTLY ONTO THE SURFACE OF SAID BED SO AS TO MAINTAIN A CONSTANT BED LEVEL, INTRODUCING AN UPWARDLY DIRECTED STREAM COMPRISING SAID LIQUID INTO SAID BED FROM A LOCATION BELOW THE SURFACE THEREOF SO AS TO CONTACT SAID SOLIDS AND CONVEY THE SAME UPWARDLY, PASSING THE UPWARDLY CONVEYED STREAM OF LIQUID-CONTACTED SOLIDS INTO AND THROUGH A SHORT CONFINED PATH EXTENDING UPWARDLY FROM A LOCATION WITHIN SAID BED SPACED AXIALLY ABOVE THE INCOMING STREAM TO A LOW POINT WITHIN THE SPACE ABOVE THE SURFACE OF SAID BED, AND DISTRIBUTING SAID LIQUID-CONTACTED SOLIDS OVER THE SURFACE
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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |