Patent FR1064450A successfully refreshed from Google Patents.
US2725482A
Expired / Lapsed
US
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Irradiating apparatus
Assignee: MICHAEL REESE RES FOUNDATION
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Filing: 1952-10-21
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Granted: 1955-11-29
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Expires: 1972-10-21
Abstract
No abstract record available.
Inventors
- 👤 Sidney O Levinson
- 👤 Oppenheimer Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:39
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/50; A23B2/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE HEREIN DESCRIBED PROCESS OF TREASING SOLUTIONS OR SUSPENSIONS WITH IRRADIATION WHICH COMPRISES DELIVERING THE LIQUID TO THE BOTTOM OF A ROTATING FRUSTO-CONICAL BOWL HAVING AN INCLUDED ANGLE BETWEEN 10 MINUTES AND 10 DEGREES AT SUCH A RATE THAT CORRELATED WITH THE SPEED OF ROTATION OF THE BOWL, THE SOLUTION OR SUSPENSION WILL TRAVEL UPWARDLY ON THE INNER WALL OF THE BOWL IN A FILM OF SUBSTANTIALLY UNIFORM THICKNESS NOT GREATER THAN 100 MICRONS, AND SUBMITTING THE FILM TO IRRADIATION DURING ITS UPWARD PASSAGE.
Claim 2
Dependent Claim
84 words
THE HEREIN DESCRIBED PROCESS OF TREASING SOLUTIONS OR SUSPENSIONS WITH IRRADIATION WHICH COMPRISES DELIVERING THE LIQUID TO THE BOTTOM OF A ROTATING FRUSTO-CONICAL BOWL HAVING AN INCLUDED ANGLE BETWEEN 10 MINUTES AND 10 DEGREES AT SUCH A RATE THAT CORRELATED WITH THE SPEED OF ROTATION OF THE BOWL, THE SOLUTION OR SUSPENSION WILL TRAVEL UPWARDLY ON THE INNER WALL OF THE BOWL IN A FILM OF SUBSTANTIALLY UNIFORM THICKNESS NOT GREATER THAN 100 MICRONS, AND SUBMITTING THE FILM TO IRRADIATION DURING ITS UPWARD PASSAGE.
References Cited (Backward Citations)
US1118006A
Cited
US2072417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |