US3810741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for processing glass and controlling the thermal pattern in a stream feeder
Assignee: Owens Corning
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Filing: 1971-05-21
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Granted: 1974-05-14
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Expires: 1991-05-21
Abstract
Abstract The disclosure embraces a method of and means for controlling a thermal or heat pattern and a distribution pattern of heat-softened material, such as glass, in an electrically-heated feeder having an orificed region for flowing streams of the heat-softened material wherein a current-conducting instrumentality in the feeder is configurated with groups of glass flow openings or perforations of different sizes in areas of the instrumentality to provide a more uniform heat pattern in the glass in the feeder and promote flow of substantially uniform streams of glass from the orifices of the feeder.
Inventors
- 👤 C Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:49
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/09; C03B37/091; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |