US3592623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass melting furnace and method of operating it
Assignee: Airco Inc
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Filing: 1969-04-04
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Granted: 1971-07-13
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Expires: 1989-04-04
Abstract
Abstract THIS INVENTION RELATES TO A METHOD AND APLPARATUS FOR INCREASING THE MELTING RATE IN A GLASS TANK UTILIZING OXYFUEL COMBUSTION TECHNIQUES. MORE PARTICULARLY, AN OXYFUEL FLAME IS DIRECTED TOWARD THE FEED END OF A GLASS TANK SO AS TO CONTROL THE LOCATION AND MELTING OF THE RAW GLASS BATCH MATERIALS THAT ARE ADDED TO THE MELTING ZONE.
Inventors
- 👤 Thomas L Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:50
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/20; C03B5/202; C03B5/235; C03B5/2353; Y; Y02; Y02P; Y02P40/00; Y02P40/50
Claims Analysis
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |