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US2676099A
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Process of coating fibers with gas agitation
Assignee: F D FARNAM Co
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Filing: 1948-09-25
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Granted: 1954-04-20
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Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 John Y L Kao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:52
CPC Classifications
F; F02; F02M; F02M19/00; D; D06; D06M; D06M7/00; D06M7/005; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/63; D21H17/66; D21H23/00; D21H23/76; D21H23/765
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE PROCESS OF PREPARING A COATED FIBROUS MATERIAL, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING AN AQUEOUS SLURRY CONTAINING NOT MORE THAN ABOUT 2% OF FIBER, SUBJECTING THE SLURRY CONTINUOUSLY TO RAPID, TURBULENT MASS AGITATION BY BUBBLING UPWARDLY THERETHROUGH A GAS WHEREBY THE FIBERS ARE CONTINUOUSLY DISPERSED BY THE EXPANDING GAS BUBBLING THERETHROUGH, AND SLOWLY ADDING TO THE EBULLIENT SLURRY A COATING MATERIAL IN THE FORM OF AN EMULSION WHEREBY THE DISPERSED FIBERS ARE UNIFORMLY COATED WITH THE COATING MATERIAL.
Claim 2
Dependent Claim
80 words
IN THE PROCESS OF PREPARING A COATED FIBROUS MATERIAL, THE IMPROVEMENT WHICH CONSISTS IN PROVIDING AN AQUEOUS SLURRY CONTAINING NOT MORE THAN ABOUT 2% OF FIBER, SUBJECTING THE SLURRY CONTINUOUSLY TO RAPID, TURBULENT MASS AGITATION BY BUBBLING UPWARDLY THERETHROUGH A GAS WHEREBY THE FIBERS ARE CONTINUOUSLY DISPERSED BY THE EXPANDING GAS BUBBLING THERETHROUGH, AND SLOWLY ADDING TO THE EBULLIENT SLURRY A COATING MATERIAL IN THE FORM OF AN EMULSION WHEREBY THE DISPERSED FIBERS ARE UNIFORMLY COATED WITH THE COATING MATERIAL.
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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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |