US3360593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing fibers from solidified phosphorus-furnace slag
Assignee: FMC Corp
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Filing: 1965-08-23
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Granted: 1967-12-26
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Rau Eric
- 👤 Jr William H Kibbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:42
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05; C03C; C03C13/00; C03C13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD OF PRODUCING FIBERS RESISTANT TO CRYSTALLIZATION AND PHYSICAL DEGRADATION ON AGING FROM A SOLIDIFIED FURNACE SLAG, COMPRISING HEATING SAID SLAG TO A CONDITIONING TEMPERATURE AT LEAST 100*C. ABOVE THE TEMPERATURE AT WHICH THE SLAG IS MELTED AND HAS A SPINNING VISCOSITY OF 15 POISES, HOLDING SAID MOLTEN SLAG AT SAID CONDITIONING TEMPERATURE FOR A CONDITIONING TIME OF AT LEAST 10 MINUTES TO PRODUCE A CONDITIONED SLAG, FEEDING SAID CONDITIONED SLAG TO A SPINNER WHEEL WHICH THROWS STREAMS OF SAID MOLTEN, CONDITIONED SLAG OUTWARDLY, SAID SLAG BEING AT A CONDITIONING TEMPERATURE ON SAID SPINNER WHEEL, AND INTERCEPTING SAID STREAMS BY A HIGH VELOCITY FLOW OF A GASEOUS FLUID TO ATTENUATE THE STREAMS INTO FIBERS.
Claim 2
Independent Claim
115 words
A METHOD OF PRODUCING FIBERS RESISTANT TO CRYSTALLIZATION AND PHYSICAL DEGRADATION ON AGING FROM A SOLIDIFIED FURNACE SLAG, COMPRISING HEATING SAID SLAG TO A CONDITIONING TEMPERATURE AT LEAST 100*C. ABOVE THE TEMPERATURE AT WHICH THE SLAG IS MELTED AND HAS A SPINNING VISCOSITY OF 15 POISES, HOLDING SAID MOLTEN SLAG AT SAID CONDITIONING TEMPERATURE FOR A CONDITIONING TIME OF AT LEAST 10 MINUTES TO PRODUCE A CONDITIONED SLAG, FEEDING SAID CONDITIONED SLAG TO A SPINNER WHEEL WHICH THROWS STREAMS OF SAID MOLTEN, CONDITIONED SLAG OUTWARDLY, SAID SLAG BEING AT A CONDITIONING TEMPERATURE ON SAID SPINNER WHEEL, AND INTERCEPTING SAID STREAMS BY A HIGH VELOCITY FLOW OF A GASEOUS FLUID TO ATTENUATE THE STREAMS INTO FIBERS.
References Cited (Backward Citations)
US2793395A
Cited
US3097085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |