US3021558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing fibers
Assignee: Owens Corning
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Filing: 1959-05-15
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Granted: 1962-02-20
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Expires: 1979-05-15
Abstract
No abstract record available.
Inventors
- 👤 Cletis L Roberson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:30
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/06; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
THE METHOD OF FORMING FIBERS FROM HEAT-SOFTENED MINERAL MATERIAL INCLUDING FLOWING STREAMS OF THE MATERIAL IN SPACED ROWS FROM A SUPPLY THROUGH WALLED PASSAGES, ENGAGING THE MATERIAL OF THE STREAMS IN EACH PASSAGE WITH A FIRST GASEOUS BLAST DISCHARGED FROM AN ORIFICE IN THE INNER WALL OF EACH PASSAGE, ENGAGING THE MATERIAL OF THE STREAMS IN EACH PASSAGE WITH A SECOND GASEOUS BLAST DISCHARGED FROM AN ORIFICE IN THE OUTER WALL OF EACH PASSAGE AT A LOWER REGION THAN THE ZONE OF ENGAGEMENT OF THE FIRST BLAST WITH THE MATERIAL, AND OBSTRUCTING THE FLOW OF BLAST-INDUCED AIR AT THE REGION BETWEEN THE PASSAGES.
Claim 2
Independent Claim
103 words
THE METHOD OF FORMING FIBERS FROM HEAT-SOFTENED MINERAL MATERIAL INCLUDING FLOWING STREAMS OF THE MATERIAL IN SPACED ROWS FROM A SUPPLY THROUGH WALLED PASSAGES, ENGAGING THE MATERIAL OF THE STREAMS IN EACH PASSAGE WITH A FIRST GASEOUS BLAST DISCHARGED FROM AN ORIFICE IN THE INNER WALL OF EACH PASSAGE, ENGAGING THE MATERIAL OF THE STREAMS IN EACH PASSAGE WITH A SECOND GASEOUS BLAST DISCHARGED FROM AN ORIFICE IN THE OUTER WALL OF EACH PASSAGE AT A LOWER REGION THAN THE ZONE OF ENGAGEMENT OF THE FIRST BLAST WITH THE MATERIAL, AND OBSTRUCTING THE FLOW OF BLAST-INDUCED AIR AT THE REGION BETWEEN THE PASSAGES.
Claim 3
Dependent Claim
165 words
APPARATUS FOR PRODUCTING FIBERS FROM HEAT-SOFTENABLE MATERIAL INCLUDING, IN COMBINATION, MEANS FOR FEEDING SPACED GROUPS OF STREAMS OF THE MATERIAL FROM A SUPPLY, A BLOWER DISPOSED ADJACENT AND BENEATH THE STREAM FEEDING MEANS, SAID BLOWER BEING FORMED WITH A STREAM RECEIVING PASSAGE FOR EACH GROUP OF STREAMS, A PORTION OF THE BLOWER AT ONE SIDE OF EACH PASSAGE EXTENDING ABOVE THE PORTION OF THE BLOWER AT THE OPPOSITE SIDE OF EACH PASSAGE, CHAMBERS FORMED IN THE PORTIONS OF THE BLOWER AT BOTH SIDES OF EACH PASSAGES ADAPTED TO CONTAIN GAS UNDER PRESSURE, THE WALLS OF THE PORTIONS OF THE BLOWER DEFINING THE STREAM RECEIVING PASSAGES BEING FORMED WITH OUTLETS THROUGH WHICH GAS IS DISCHARGED FROM SAID CHAMBERS AS HIGH VELOCITY BLASTS ADAPTED TO ENGAGE AND ATTENUATE THE MATERIAL OF THE STREAMS TO FIBERS, THE OUTLETS FOR EACH PASSAGE BEING ARRANGED IN VERTICALLY SPACED RELATION WHEREBY THE GASES OF THE BLASTS ENGAGE THE MATERIAL OF THE GROUPS OF STREAMS IN VERTICALLY SPACED REGIONS IN EACH PASSAGE.
Claim 4
Dependent Claim
165 words
APPARATUS FOR PRODUCTING FIBERS FROM HEAT-SOFTENABLE MATERIAL INCLUDING, IN COMBINATION, MEANS FOR FEEDING SPACED GROUPS OF STREAMS OF THE MATERIAL FROM A SUPPLY, A BLOWER DISPOSED ADJACENT AND BENEATH THE STREAM FEEDING MEANS, SAID BLOWER BEING FORMED WITH A STREAM RECEIVING PASSAGE FOR EACH GROUP OF STREAMS, A PORTION OF THE BLOWER AT ONE SIDE OF EACH PASSAGE EXTENDING ABOVE THE PORTION OF THE BLOWER AT THE OPPOSITE SIDE OF EACH PASSAGE, CHAMBERS FORMED IN THE PORTIONS OF THE BLOWER AT BOTH SIDES OF EACH PASSAGES ADAPTED TO CONTAIN GAS UNDER PRESSURE, THE WALLS OF THE PORTIONS OF THE BLOWER DEFINING THE STREAM RECEIVING PASSAGES BEING FORMED WITH OUTLETS THROUGH WHICH GAS IS DISCHARGED FROM SAID CHAMBERS AS HIGH VELOCITY BLASTS ADAPTED TO ENGAGE AND ATTENUATE THE MATERIAL OF THE STREAMS TO FIBERS, THE OUTLETS FOR EACH PASSAGE BEING ARRANGED IN VERTICALLY SPACED RELATION WHEREBY THE GASES OF THE BLASTS ENGAGE THE MATERIAL OF THE GROUPS OF STREAMS IN VERTICALLY SPACED REGIONS IN EACH PASSAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |