Patent US3286844A successfully refreshed from Google Patents.
US3286844A
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Fiber flotation apparatus
Assignee: E D JONES CORP
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Filing: 1963-09-26
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Granted: 1966-11-22
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Juell Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:34
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/1412; B03D1/1431; B03D1/1443; B03D1/1462; B03D1/1493; D; D21; D21F; D21F1/00; D21F1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
FIBRE RECOVERY APPARATUS COMPRISING AN INLET CHAMBER AND A FLOTATION CHAMBER, THE INLET CHAMBER HAVING AN INLET FOR INTRODUCING AERATED FIBER SUSPENSION AND THE FLOTATION CHAMBER HAVING AN OUTLET FOR FLOATING FIBERS, MEANS IN SAID FLOTATION CHAMBER FOR REMOVING CLARIFIED WATER, A PARTITION WALL SEPARATING SAID CHAMBERS FROM ONE ANOTHER AND EXTENDING UPWARDLY AND TERMINATING BELOW THE LEVEL OF SAID OUTLET IN A WIDE TOP SURFACE, LEAVING A SHALLOW LIQUID PASSAGE OVER THE TOP SURFACE OF THE PARTITION THROUGHOUT THE LENGTH AND WIDTH OF THE PARTITION, AND A SCRAPER FOR MOVING THE MATERIAL FLOATING IN THE FLOTATION CHAMBER TOWARDS SAID OUTLET, CHARACTERIZED IN THAT THE UPPER END OF THE SIDE OF SAID PARTITION WALL IN THE FLOTATION CHAMBER INCLINES UPWARDLY AND INWARDLY OF THE FLOTATION CHAMBER AND SAID PARTITION INCREASES IN THICKNESS UPWARDLY TO PROVIDE SAID WIDE TOP SURFACE.
Claim 2
Dependent Claim
139 words
FIBRE RECOVERY APPARATUS COMPRISING AN INLET CHAMBER AND A FLOTATION CHAMBER, THE INLET CHAMBER HAVING AN INLET FOR INTRODUCING AERATED FIBER SUSPENSION AND THE FLOTATION CHAMBER HAVING AN OUTLET FOR FLOATING FIBERS, MEANS IN SAID FLOTATION CHAMBER FOR REMOVING CLARIFIED WATER, A PARTITION WALL SEPARATING SAID CHAMBERS FROM ONE ANOTHER AND EXTENDING UPWARDLY AND TERMINATING BELOW THE LEVEL OF SAID OUTLET IN A WIDE TOP SURFACE, LEAVING A SHALLOW LIQUID PASSAGE OVER THE TOP SURFACE OF THE PARTITION THROUGHOUT THE LENGTH AND WIDTH OF THE PARTITION, AND A SCRAPER FOR MOVING THE MATERIAL FLOATING IN THE FLOTATION CHAMBER TOWARDS SAID OUTLET, CHARACTERIZED IN THAT THE UPPER END OF THE SIDE OF SAID PARTITION WALL IN THE FLOTATION CHAMBER INCLINES UPWARDLY AND INWARDLY OF THE FLOTATION CHAMBER AND SAID PARTITION INCREASES IN THICKNESS UPWARDLY TO PROVIDE SAID WIDE TOP SURFACE.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |