US3133803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for conditioning molten glass
Assignee: OI Glass Inc
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Filing: 1961-01-16
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Granted: 1964-05-19
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Robert R Denman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:18
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/02; C03B7/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
IN AN APPARATUS FOR CNDITIONING MOLTEN GLASS, THE COMBINATION OF A FEEDER FOREHEARTH, A GLASS CONVEYING CHANNEL THEREIN ADAPTED TO CONVEY MOLTEN GLASS, SAID CHANNEL BEING PROVIDED WITH AN OUTLET ORIFICE AT ITS OUTER END, SAID CHANNEL EXTENDING THROUGH THE LENGTH OF SAID FOREHEARTH AND HAVING THE MAJOR PORTION OF ITS LENGTH OF CONSTANT CROSS-SECTIONAL AREA, A PORTION OF SAID CHANNEL IN ADVANCE OF THE OUTLET ORIFICE BEING OF REDUCED DEPTH AND INCREASED WIDTH, A SKIMMER BLOCK ADAPTED TO CONTROL THE VOLUME AND LEVEL OF GLASS FLOWING THROUGH SAID REDUCED DEPTH AREA, AND HEATER MEANS IN SAID REDUCED DEPTH AND INCREASED WIDTH AREA FOR MAINTAINING A CONSTANT TEMPERATURE IN THE GLASS FLOWING THERETHROUGH.
Claim 2
Dependent Claim
113 words
IN AN APPARATUS FOR CNDITIONING MOLTEN GLASS, THE COMBINATION OF A FEEDER FOREHEARTH, A GLASS CONVEYING CHANNEL THEREIN ADAPTED TO CONVEY MOLTEN GLASS, SAID CHANNEL BEING PROVIDED WITH AN OUTLET ORIFICE AT ITS OUTER END, SAID CHANNEL EXTENDING THROUGH THE LENGTH OF SAID FOREHEARTH AND HAVING THE MAJOR PORTION OF ITS LENGTH OF CONSTANT CROSS-SECTIONAL AREA, A PORTION OF SAID CHANNEL IN ADVANCE OF THE OUTLET ORIFICE BEING OF REDUCED DEPTH AND INCREASED WIDTH, A SKIMMER BLOCK ADAPTED TO CONTROL THE VOLUME AND LEVEL OF GLASS FLOWING THROUGH SAID REDUCED DEPTH AREA, AND HEATER MEANS IN SAID REDUCED DEPTH AND INCREASED WIDTH AREA FOR MAINTAINING A CONSTANT TEMPERATURE IN THE GLASS FLOWING THERETHROUGH.
Claim 3
Independent Claim
67 words
THE METHOD OF CONTROLLING THE TEMPERATURE OF A MOVING STREAM OF MOLTEN GLASS COMPRISING FIRST FLOWING MOLTEN GLASS THROUGH A ZONE OF CONTROLLED HEAT APPLIED TO THE SURFACE OF SAID FLOWING GLASS, CONTINUING THE FLOW OF SAID MOLTEN GLASS THROUGH A ZONE OF INCREASED SURFACE AREA AND DECREASED DEPTH AND APPLYING HEAT AT SAID ZONE INTERNALLY AND EXTERNALLY OF SAID GLASS IN SAID ZONE OF REDUCED DEPTH.
Claim 4
Independent Claim
67 words
THE METHOD OF CONTROLLING THE TEMPERATURE OF A MOVING STREAM OF MOLTEN GLASS COMPRISING FIRST FLOWING MOLTEN GLASS THROUGH A ZONE OF CONTROLLED HEAT APPLIED TO THE SURFACE OF SAID FLOWING GLASS, CONTINUING THE FLOW OF SAID MOLTEN GLASS THROUGH A ZONE OF INCREASED SURFACE AREA AND DECREASED DEPTH AND APPLYING HEAT AT SAID ZONE INTERNALLY AND EXTERNALLY OF SAID GLASS IN SAID ZONE OF REDUCED DEPTH.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |