US3788832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for pre-treating and melting glassmaking materials
Assignee: Gas Technology Institute
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Filing: 1972-08-25
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Granted: 1974-01-29
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Expires: 1992-08-25
Abstract
Abstract An improved process for pre-treating and melting glassmaking materials wherein, in a preferred embodiment, the glass batch is compacted or agglomerated into distinct units, preheated and then conveyed into a glass furnace or melter. The glass batch preferably is compacted into briquets using an improved process, and the glass batch is preheated with the combustion gases from the glass furnace in a fashion such that particular matter, particularly sodium sulfate, is removed from the combustion gases. Melting preferably is accomplished using a submerged combustion process.
Inventors
- 👤 J Nesbitt
- 👤 M Fejer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:23
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/235; C03B5/2356; C03B1/00; C03B1/02; C03B3/00; C03B3/02; C03B3/023; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 0
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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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |