US3600149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control system for a glass tank forehearth
Assignee: Corning Glass Works
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Filing: 1969-09-26
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Granted: 1971-08-17
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Expires: 1989-09-26
Abstract
Abstract A SYSTEM FOR CONTROLLING THE TEMPERATURE OF A BATH OR POOL OF MOLTEN GLASS IN A FOREHEARTH SO THAT THE TEMPERATURES OF SUCH GLASS AT FIRST AND SECOND OPPOSITE SIDES OF THE FOREHEARTH ARE EQUAL OR DIFFER FROM EACH OTHER BY A PRESELECTED AMOUNT. SUCH SYSTEM MAY BE EMPLOYED IN CONJUNCTION WITH PRIOR KNOWN SYSTEMS FOR MAINTAINING THE TEMPERATURE OF THE MOLTEN GLASS, AT A SELECTED POINT BETWEEN SAID SIDES OF THE FOREHEARTH, AT A PRESELECTED TEMPERATURE.
Inventors
- 👤 Tai-Seng Chen
- 👤 Kenneth A Cook
- 👤 Bernard P Mcdonnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:25
CPC Classifications
C; C03; C03B; C03B7/00; C03B7/02; C03B7/06; C03B5/00; C03B5/16; C03B5/24; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; Y; Y10; Y10S; Y10S65/00; Y10S65/13
Claims Analysis
Total Claims: 0
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |