US3074568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for feeding glass batch materials
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1958-02-05
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Granted: 1963-01-22
•
Expires: 1978-02-05
Abstract
No abstract record available.
Inventors
- 👤 James E Mambourg
- 👤 Anthony G Sporer
- 👤 Charles E Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:23
CPC Classifications
C; C03; C03B; C03B3/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
AN APPARATUS FOR DELIVERING GLASS-MAKING MATERIALS ONTO THE SURFACE OF MOLTEN GLASS AT THE FEEDING END OF A TANK-FURNACE AND ADVANCING SAID MATERIALS FORWARDLY INTO SAID FURNACE, IN COMBINATION, MEANS FOR SUPPLYING CULLET MATERIAL TO THE FEEDING END OF THE FURNACE IN LAYERS EQUALLY SPACED MEDIALLY FROM THE LONGITUDINAL AXIS OF SAID FURNACE, ROTARY MEANS FOR SUPPLYING PULVERULENT BATCH MATERIALS IN A TRANSVERSELY CONTINUOUS LAYER ON THE SURFACES OF THE SPACED CULLET LAYERS, AND MEANS ASSOCIATED WITH SAID ROTARY MEANS FOR CONTROLLING THE THICKNESS OF SAID TRANSVERSELY CONTINUOUS LAYER FROM THE OUTER MARGINS THEREOF TO THE MEDIAL AREA.
References Cited (Backward Citations)
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US2178418A
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US2310924A
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US2306811A
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US2711837A
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US2624475A
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US2773611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |