US2987773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of glass filaments
Assignee: Owens Corning
•
Filing: 1956-08-28
•
Granted: 1961-06-13
•
Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Charles J Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:35
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD FOR PRODUCING FILAMENTS OF A FIBERIZABLE, FUSIBLE, SOLID MATERIAL WHICH COMPRISES ROTATING A MASS OF THE SOLID FUSIBLE MATERIAL WHILE DIRECTING A HIGH VELOCITY BLAST OF HOT COMBUSTION PRODUCTS AGAINST AN EXPOSED SURFACE THEREOF TO HEAT SAID SURFACE OF THE MATERIAL, THE EXCESS OF THE SOFTENING TEMPERATURE OF THE MATERIAL, THE RATE OF ROTATION OF THE MASS BEING SUFFICIENTLY HIGH THAT THE SOFTENED MATERIAL IS THROWN OFF CENTRIFUGALLY IN FILAMENT-FORMING STREAMS WHICH ARE THEN EXTENDED LONGITUDINALLY AND ATTENUATED BY THE BLAST.
Claim 2
Independent Claim
83 words
A METHOD FOR PRODUCING FILAMENTS OF A FIBERIZABLE, FUSIBLE, SOLID MATERIAL WHICH COMPRISES ROTATING A MASS OF THE SOLID FUSIBLE MATERIAL WHILE DIRECTING A HIGH VELOCITY BLAST OF HOT COMBUSTION PRODUCTS AGAINST AN EXPOSED SURFACE THEREOF TO HEAT SAID SURFACE OF THE MATERIAL, THE EXCESS OF THE SOFTENING TEMPERATURE OF THE MATERIAL, THE RATE OF ROTATION OF THE MASS BEING SUFFICIENTLY HIGH THAT THE SOFTENED MATERIAL IS THROWN OFF CENTRIFUGALLY IN FILAMENT-FORMING STREAMS WHICH ARE THEN EXTENDED LONGITUDINALLY AND ATTENUATED BY THE BLAST.
References Cited (Backward Citations)
US2497369A
Cited
GB610845A
Cited
US2624912A
Cited
US2530345A
Cited
US2609566A
Cited
US2682079A
Cited
US2724866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |