Method and apparatus for melting and supplying heat-softenable materials in a process
Abstract
Abstract A PREFERRED EMBODIMENT OF THE INVENTION ILLUSTRATES NOVEL APPARATUS FOR CARRYING OUT A METHOD FOR PRODUCING GLASS FIBERS INCLUDING FEEDING GLASS BATCH TO A FURNACE FOR MELTING INTO A POOL, FLOWING MOLTEN GLASS FROM THE POOL INTO A FEEDER MEANS AND ATTENUATING STREAMS FROM THE FEEDER INTO FIBERS. FUEL FLOW TO FURNACE BURNERS IS REGULATED IN RESPONSE TO DEVIATIONS OF ACTUAL FURNACE TEMPERATURES FROM A PRESELECTED SETPOINT TEMPERATURE. FUEL FLOW REQUIREMENT CHANGES ARE ANTICIPATED BY MONITORING THE RATE OF BATCH FEED TO THE FURNACE AND MODIFYING THE FUEL FLOW SETPOINT OR THE FURNACE SETPOINT TEMPERATURE IN RESPONSE TO BATCH FEED RATE CHANGES. TO PROVIDE MORE CONTROL THE TEMPERATURE OF THE MOLTEN GLASS EXITING FROM THE POOL IS SENSED TO FURTHER MODIFY THE FUEL FLOW SETPOINT OR THE FURNACE SETPOINT TEMPERATURE IN ACCORDANCE WITH GLASS FLOW RATES THROUGH THE SYSTEM AS INDICATED BY TEMPERATURE CHANGES IN EXITING GLASS.
Inventors
- 👤 Paul D Griem Jr
Bibliographic Details
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |