Patent US3129084A successfully refreshed from Google Patents.
US3129084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine and process for forming glass fibers
Assignee: Johns Manville Corp
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Filing: 1963-03-12
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Granted: 1964-04-14
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Expires: 1983-03-12
Abstract
No abstract record available.
Inventors
- 👤 Labino Dominick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:21
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/085; C03B37/081
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
THE METHOD OF CONTINUOUSLY MELTING GLASS INCREMENTS AND CONTINUOUSLY FORMING GLASS FILAMENTS, COMPRISING: (A) PROVIDING A GLASS MELTING ZONE DEFINED BY A REFRACTORY CLAY CRUCIBLE; (B) PROVIDING IN SAID MELTING ZONE A SUPPLY OF GLASS; (C) HEATING THE EXTERIOR OF SAID CRUCIBLE WITH HOT GASEOUS PRODUCTS OF COMBUSTION WHILE ISOLATING SAID PRODUCTS OF COMBUSTION FROM THE INTERIOR OF SAID CRUCIBLE; (D) MELTING SAID GLASS IN SAID ZONE WITH HEAT TRANSFERRED FROM SAID CRUCIBLE TO PROVIDE A BODY OF MOLTEN GLASS FROM WHICH A PLURALITY OF EXUDATIONS ARE EXUDED GENERALLY VERTICALLY DOWNWARDLY THROUGH THE BOTTOM OF SAID CRUCIBLE; (E) AND DRAWING FROM SAID EXUDATIONS A PLURALITY OF GLASS FILAMENTS.
Claim 2
Independent Claim
108 words
THE METHOD OF CONTINUOUSLY MELTING GLASS INCREMENTS AND CONTINUOUSLY FORMING GLASS FILAMENTS, COMPRISING: (A) PROVIDING A GLASS MELTING ZONE DEFINED BY A REFRACTORY CLAY CRUCIBLE; (B) PROVIDING IN SAID MELTING ZONE A SUPPLY OF GLASS; (C) HEATING THE EXTERIOR OF SAID CRUCIBLE WITH HOT GASEOUS PRODUCTS OF COMBUSTION WHILE ISOLATING SAID PRODUCTS OF COMBUSTION FROM THE INTERIOR OF SAID CRUCIBLE; (D) MELTING SAID GLASS IN SAID ZONE WITH HEAT TRANSFERRED FROM SAID CRUCIBLE TO PROVIDE A BODY OF MOLTEN GLASS FROM WHICH A PLURALITY OF EXUDATIONS ARE EXUDED GENERALLY VERTICALLY DOWNWARDLY THROUGH THE BOTTOM OF SAID CRUCIBLE; (E) AND DRAWING FROM SAID EXUDATIONS A PLURALITY OF GLASS FILAMENTS.
Claim 3
Dependent Claim
135 words
IN APPARATUS FOR CONTINUOUSLY MELTING GLASS INCREMENTS AND CONTINUOUSLY FORMING GLASS FILAMENTS, THE COMBINATION COMPRISING: (A) A REFRACTORY CLAY CRUCIBLE HAVING A BOTTOM AND A PERIPHERAL SIDE WALL FOR CONTAINING A SUPPLY OF MOLTEN GLASS, (B) SAID BOTTOM WALL BEING PROVIDED WITH A PLURALITY OF GENERALLY VERTICAL DOWNWARDLY EXTENDING AND NORMALLY OPEN ORIFICES THROUGH WHICH GLASS IS CONTINUOUSLY EXUDED TO FORM A PLURALITY OF EXUDATIONS; (C) AN ENCLOSURE IN SPACED RELATION WITH SAID CRUCIBLE AND (D) DEFINING A HEATING CHAMBER THEREBETWEEN, TO WHICH CHAMBER HEATING GASES ARE CONTINUOUSLY SUPPLIED, (E) SAID CRUCIBLE AND SAID ENCLOSURE BEING ARRANGED TO ISOLATE THE HEATING GASES FROM DIRECT CONTACT WITH THE MOLTEN GLASS AND TO DETER CONTAMINATION OF THE MOLTEN GLASS; (F) MEANS FOR SUPPLYING HEATING GASES TO SAID CHAMBER; AND (G) MEANS FOR DRAWING FILAMENTS FROM SAID EXUDATIONS.
Claim 4
Dependent Claim
135 words
IN APPARATUS FOR CONTINUOUSLY MELTING GLASS INCREMENTS AND CONTINUOUSLY FORMING GLASS FILAMENTS, THE COMBINATION COMPRISING: (A) A REFRACTORY CLAY CRUCIBLE HAVING A BOTTOM AND A PERIPHERAL SIDE WALL FOR CONTAINING A SUPPLY OF MOLTEN GLASS, (B) SAID BOTTOM WALL BEING PROVIDED WITH A PLURALITY OF GENERALLY VERTICAL DOWNWARDLY EXTENDING AND NORMALLY OPEN ORIFICES THROUGH WHICH GLASS IS CONTINUOUSLY EXUDED TO FORM A PLURALITY OF EXUDATIONS; (C) AN ENCLOSURE IN SPACED RELATION WITH SAID CRUCIBLE AND (D) DEFINING A HEATING CHAMBER THEREBETWEEN, TO WHICH CHAMBER HEATING GASES ARE CONTINUOUSLY SUPPLIED, (E) SAID CRUCIBLE AND SAID ENCLOSURE BEING ARRANGED TO ISOLATE THE HEATING GASES FROM DIRECT CONTACT WITH THE MOLTEN GLASS AND TO DETER CONTAMINATION OF THE MOLTEN GLASS; (F) MEANS FOR SUPPLYING HEATING GASES TO SAID CHAMBER; AND (G) MEANS FOR DRAWING FILAMENTS FROM SAID EXUDATIONS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |