Patent US4197816A successfully refreshed from Google Patents.
Patent US2995612A successfully refreshed from Google Patents.
US2995612A
Expired / Lapsed
US
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Centrifugal contactor
Assignee: Universal Oil Products Co
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Filing: 1959-08-17
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Granted: 1961-08-08
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 George L Hervert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:50
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; B; B01; B01J; B01J19/00; B01J19/18; B01J19/1806; B01J19/1887; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00085; B01J2219/00121; B01J2219/00123; B01J2219/00126; B01J2219/00164; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1946; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
IN AN APPARATUS FOR CONTACTING A DENSE LIQUID AND LIGHT LIQUID WHICH ARE AT LEAST PARTIALLY IMMISCIBLE, THE COMBINATION OF A PRESSURE-TIGHT HOUSING, A SHELL OF CIRCULAR CROSS-SECTION WITHIN SAID HOUSING WHOSE AXIS IS INCLINED TO THE HORIZONTAL, MEANS CONNECTING WITH THE SHELL FOR ROTATING IT ABOUT SAID AXIS, INLET MEANS FOR INTRODUCING SAID DENSE LIQUID ONTO THE UPPER INTERIOR PERIPHERAL SURFACE OF SAID SHELL, SEPARATE INLET MEANS FOR DISCHARGING SAID LIGHT LIQUID TOWARD SAID UPPER SURFACE AT A LOWER ELEVATION THAN THE POINT OF SAID DENSE LIQUID INTRODUCTION, AND OUTLET MEANS FOR REMOVING THE RESULTING CONTACTED LIQUIDS FROM THE LOWER INTERIOR SURFACE OF SAID SHELL.
Claim 2
Dependent Claim
106 words
IN AN APPARATUS FOR CONTACTING A DENSE LIQUID AND LIGHT LIQUID WHICH ARE AT LEAST PARTIALLY IMMISCIBLE, THE COMBINATION OF A PRESSURE-TIGHT HOUSING, A SHELL OF CIRCULAR CROSS-SECTION WITHIN SAID HOUSING WHOSE AXIS IS INCLINED TO THE HORIZONTAL, MEANS CONNECTING WITH THE SHELL FOR ROTATING IT ABOUT SAID AXIS, INLET MEANS FOR INTRODUCING SAID DENSE LIQUID ONTO THE UPPER INTERIOR PERIPHERAL SURFACE OF SAID SHELL, SEPARATE INLET MEANS FOR DISCHARGING SAID LIGHT LIQUID TOWARD SAID UPPER SURFACE AT A LOWER ELEVATION THAN THE POINT OF SAID DENSE LIQUID INTRODUCTION, AND OUTLET MEANS FOR REMOVING THE RESULTING CONTACTED LIQUIDS FROM THE LOWER INTERIOR SURFACE OF SAID SHELL.
Claim 3
Dependent Claim
70 words
IN A PROCESS FOR CO-CURRENTLY CONTACTING A LIQUID REACTANT WITH A LIQUID CATALYST AT LEAST PARTIALLY IMMISCIBLE WITH AND HAVING A GREATER DENSITY THAN SAID REACTANT, SAID CONTACTING PROCESS BEING ACCOMPANIED BY THE EVOLUTION OF HEAT, THE STEPS WHICH COMPRISE FIRST FORMING SAID CATALYST INTO A PLURALITY OF CONCENTRICALLY SPACED, ROTATING ANNULAR FILMS WHOSE COMMON AXIS OF ROTATION IS INCLINED TO THE HORIZONTAL, SAID ROTATING FILMS BEING CONTAINED WITHIN AN
Claim 4
Dependent Claim
70 words
IN A PROCESS FOR CO-CURRENTLY CONTACTING A LIQUID REACTANT WITH A LIQUID CATALYST AT LEAST PARTIALLY IMMISCIBLE WITH AND HAVING A GREATER DENSITY THAN SAID REACTANT, SAID CONTACTING PROCESS BEING ACCOMPANIED BY THE EVOLUTION OF HEAT, THE STEPS WHICH COMPRISE FIRST FORMING SAID CATALYST INTO A PLURALITY OF CONCENTRICALLY SPACED, ROTATING ANNULAR FILMS WHOSE COMMON AXIS OF ROTATION IS INCLINED TO THE HORIZONTAL, SAID ROTATING FILMS BEING CONTAINED WITHIN AN
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |