Patent US3328144A successfully refreshed from Google Patents.
US3328144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for melting and processing heat-softenable mineral materials
Assignee: Owens Corning
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Filing: 1964-06-29
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Granted: 1967-06-27
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Hellmut I Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:27
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/081; C03B37/09; C03B37/091; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
APPARATUS FOR PROCESSING GLASS FOR ATTENUATION TO FINE FILAMENTS INCLUDING, IN COMBINATION, A STREAM FEEDER HAVING A COMPARATIVELY NARROW MAIN CENTRAL SECTION OF SUBSTANTIAL DEPTH AND AN OFFSET SECTION OF LESSER DEPTH THAN THE MAIN SECTION, MEANS ARRANGED TO DELIVER MOLTEN GLASS FROM A SUPPLY INTO THE OFFSET SECTION, WALL MEANS DISPOSED BETWEEN THE MAIN FEEDER SECTION AND THE OFFSET SECTION HAVING AN OPEN AREA NEAR THE BOTTOM OF THE OFFSET SECTION WHEREBY THE MOLTEN GLASS IN THE OFFSET SECTION FLOWS GENERALLY LATERALLY THROUGH THE OPEN AREA INTO THE MAIN FEEDER SECTION, A HEATER STRIP DISPOSED IN THE MAIN FEEDER SECTION ADAPTED TO BE ELECTRICALLY HEATED TO INCREASE THE TEMPERATURE OF THE GLASS ADJACENT THE HEATER STRIP, THE FLOOR OF THE FEEDER HAVING APLURALITY OF ORIFICES THROUGH WHICH FLOW STREAMS OF GLASS FROM THE FEEDER.
Claim 2
Dependent Claim
135 words
APPARATUS FOR PROCESSING GLASS FOR ATTENUATION TO FINE FILAMENTS INCLUDING, IN COMBINATION, A STREAM FEEDER HAVING A COMPARATIVELY NARROW MAIN CENTRAL SECTION OF SUBSTANTIAL DEPTH AND AN OFFSET SECTION OF LESSER DEPTH THAN THE MAIN SECTION, MEANS ARRANGED TO DELIVER MOLTEN GLASS FROM A SUPPLY INTO THE OFFSET SECTION, WALL MEANS DISPOSED BETWEEN THE MAIN FEEDER SECTION AND THE OFFSET SECTION HAVING AN OPEN AREA NEAR THE BOTTOM OF THE OFFSET SECTION WHEREBY THE MOLTEN GLASS IN THE OFFSET SECTION FLOWS GENERALLY LATERALLY THROUGH THE OPEN AREA INTO THE MAIN FEEDER SECTION, A HEATER STRIP DISPOSED IN THE MAIN FEEDER SECTION ADAPTED TO BE ELECTRICALLY HEATED TO INCREASE THE TEMPERATURE OF THE GLASS ADJACENT THE HEATER STRIP, THE FLOOR OF THE FEEDER HAVING APLURALITY OF ORIFICES THROUGH WHICH FLOW STREAMS OF GLASS FROM THE FEEDER.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |