Patent US2507490A successfully refreshed from Google Patents.
US2507490A
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Centrifugal apparatus and method for effecting chemical reactions
Assignee: Individual
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Filing: 1948-01-20
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Granted: 1950-05-16
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Expires: 1968-01-20
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:33
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01D; B01D1/00; B01D1/22; B01D1/222; B01F; B01F29/00; B01F29/15; B01J10/00; B01J10/02; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/00087; B01J2219/00094; B01J2219/00139; B01J2219/00146; B01J2219/00162
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
APPARATUS FOR EFFECTING CONTACT BETWEEN TWO FLUID SUBSTANCES WHICH COMPRISES A CENTRIFUGE BOWL, MEANS FOR ROTATING THE BOWL AT HIGH SPEED, AN INLET CONDUIT FOR SUPPLYING A FLUID TO THE UPPER SURFACE OF THE BOTTOM OF THE BOWL, A SECOND INLET CONDUIT FOR DELIVERING A SECOND FLUID, A PLATE PROVIDED WITH A CENTRAL OPENING AND DISPOSED IN CONFORMING RELATIONSHIP AND AT A SLIGHT DISTANCE ABOVE THE SAID BOTTOM OF THE BOWL SO THAT A NARROW SPACE IS DEFINED BETWEEN THE SAID PLATE AND BOTTOM, AND MOUNTING MEANS SECURING THE PLATE IN FIXED RELATIONSHIP TO THE BOTTOM OF THE CENTRIFUGE BOWL SO THAT THE PLATE AND BOTTOM ARE ROTATABLE TOGETHER, THE SAID INLET CONDUIT AND SECOND INLET CONDUIT COMMUNICATING AT THEIR DELIVERY ENDS WITH THE SAID OPENING, SO THAT THE TWO FLUIDS ARE DELIVERED THROUGH THE SAID OPENING TO THE SPACE BETWEEN THE CENTRIFUGE BOWL AND PLATE AND TO APPROXIMATELY THE CENTER OF ROTATION OF THE CENTRIFUGE BOWL.
Claim 2
Dependent Claim
157 words
APPARATUS FOR EFFECTING CONTACT BETWEEN TWO FLUID SUBSTANCES WHICH COMPRISES A CENTRIFUGE BOWL, MEANS FOR ROTATING THE BOWL AT HIGH SPEED, AN INLET CONDUIT FOR SUPPLYING A FLUID TO THE UPPER SURFACE OF THE BOTTOM OF THE BOWL, A SECOND INLET CONDUIT FOR DELIVERING A SECOND FLUID, A PLATE PROVIDED WITH A CENTRAL OPENING AND DISPOSED IN CONFORMING RELATIONSHIP AND AT A SLIGHT DISTANCE ABOVE THE SAID BOTTOM OF THE BOWL SO THAT A NARROW SPACE IS DEFINED BETWEEN THE SAID PLATE AND BOTTOM, AND MOUNTING MEANS SECURING THE PLATE IN FIXED RELATIONSHIP TO THE BOTTOM OF THE CENTRIFUGE BOWL SO THAT THE PLATE AND BOTTOM ARE ROTATABLE TOGETHER, THE SAID INLET CONDUIT AND SECOND INLET CONDUIT COMMUNICATING AT THEIR DELIVERY ENDS WITH THE SAID OPENING, SO THAT THE TWO FLUIDS ARE DELIVERED THROUGH THE SAID OPENING TO THE SPACE BETWEEN THE CENTRIFUGE BOWL AND PLATE AND TO APPROXIMATELY THE CENTER OF ROTATION OF THE CENTRIFUGE BOWL.
Claim 3
Independent Claim
113 words
THE METHOD OF EFFECTING A CHEMICAL REACTION BETWEEN TWO FLUIDS WHICH COMPRISES SUPPLYING ONE OF THE SAID FLUIDS TO THE INNER SURFACE OF A RAPIDLY ROTATING CENTRIFUGE BOWL AND AT APPROXIMATELY THE CENTER OF ROTATION SUPPLYING THE OTHER OF THE FLUIDS TO THE THIN FILM OF THE FIRST FLUID SO FORMED AND AT APPROXIMATELY THE SAID CENTER, CONFINING THE TWO FLUIDS WITHIN A SPACE OF THICKNESS NOT SUBSTANTIALLY MORE THAN 0.01 INCH, SO THAT, AS THE FLUIDS MOVE OUTWARDLY UNDER CENTRIGUGAL FORCE, THE FLUIDS ARE MAINTAINED IN INTIMATE AND CONTINUOUS CONTACT WITH EACH OTHER, AND CAUSING THE FILM TO BECOME CONTINUOUSLY THINNER AS IT MOVES OUTWARDLY UNDER THE INFLUENCE OF THE CENTRIFUGAL FORCE.
Claim 4
Independent Claim
113 words
THE METHOD OF EFFECTING A CHEMICAL REACTION BETWEEN TWO FLUIDS WHICH COMPRISES SUPPLYING ONE OF THE SAID FLUIDS TO THE INNER SURFACE OF A RAPIDLY ROTATING CENTRIFUGE BOWL AND AT APPROXIMATELY THE CENTER OF ROTATION SUPPLYING THE OTHER OF THE FLUIDS TO THE THIN FILM OF THE FIRST FLUID SO FORMED AND AT APPROXIMATELY THE SAID CENTER, CONFINING THE TWO FLUIDS WITHIN A SPACE OF THICKNESS NOT SUBSTANTIALLY MORE THAN 0.01 INCH, SO THAT, AS THE FLUIDS MOVE OUTWARDLY UNDER CENTRIGUGAL FORCE, THE FLUIDS ARE MAINTAINED IN INTIMATE AND CONTINUOUS CONTACT WITH EACH OTHER, AND CAUSING THE FILM TO BECOME CONTINUOUSLY THINNER AS IT MOVES OUTWARDLY UNDER THE INFLUENCE OF THE CENTRIFUGAL FORCE.
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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) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |