US3328149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass melting furnace
Assignee: OI Glass Inc
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Filing: 1963-07-26
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Granted: 1967-06-27
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Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
- 👤 George E Keefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:48
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/027; C03B5/0275; C03B3/00; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
A GLASS MELTING FURNACE INCLUDING A BOTTOM WALL AND A SURROUNDING MARGINAL WALL OF ANNULAR CONFIGURATION, SAID WALLS DEFINING A CONFINED MELTING ZONE FOR GLASSFORMING INGREDIENTS, SAID ANNULAR SIDE WALL EXTENDING CONVERGINGLY UPWARDLY AND BEING COMPOSED OF A PLURALITY OF CELLS ARRANGED IN GENERALLY HONEYCOMB FASHION, EACH OF SAID CELLS INCLUDING INDEPENDENTLY OPERABLE MEANS EFFECTIVE TO URGE BATCH GLASS-FORMING INGREDIENTS INWARDLY AND DOWNWARDLY WITH RESPECT TO SAID ZONE, WHEREBY MOLTEN GLASS MELTED AND CONTAINED IN SAID FURNACE IS URGED INWARDLY.
Claim 2
Dependent Claim
80 words
A GLASS MELTING FURNACE INCLUDING A BOTTOM WALL AND A SURROUNDING MARGINAL WALL OF ANNULAR CONFIGURATION, SAID WALLS DEFINING A CONFINED MELTING ZONE FOR GLASSFORMING INGREDIENTS, SAID ANNULAR SIDE WALL EXTENDING CONVERGINGLY UPWARDLY AND BEING COMPOSED OF A PLURALITY OF CELLS ARRANGED IN GENERALLY HONEYCOMB FASHION, EACH OF SAID CELLS INCLUDING INDEPENDENTLY OPERABLE MEANS EFFECTIVE TO URGE BATCH GLASS-FORMING INGREDIENTS INWARDLY AND DOWNWARDLY WITH RESPECT TO SAID ZONE, WHEREBY MOLTEN GLASS MELTED AND CONTAINED IN SAID FURNACE IS URGED INWARDLY.
Claim 3
Dependent Claim
75 words
A GLASS MELTING FURNACE COMPRISING A BOTTOM WALL, CONDUIT MEANS FOR COOLANT LOCATED PROXIMATE THE OUTER MARGIN OF SAID BOTTOM WALL AND COEXTENSIVE THEREWITH, SCRAPER MEANS CONSTRUCTED AND ARRANGED TO RECIPROCATING-F LY MOVE ACROSS SAID MARGINAL PERIPHERAL SURFACE OF SAID BOTTOM WALL AND THEREBY KEEP SAID SURFACE FREE OF COOLED GLASS TENDING TO COLLECT ON SAID SURFACE BY REASON OF SAID COOLING MEANS, AND MEANS FOR MAINTAINING A SUPPLY OF GLASS-FORMING INGREDIENTS PROXMATE SAID SURFACE.
Claim 4
Dependent Claim
75 words
A GLASS MELTING FURNACE COMPRISING A BOTTOM WALL, CONDUIT MEANS FOR COOLANT LOCATED PROXIMATE THE OUTER MARGIN OF SAID BOTTOM WALL AND COEXTENSIVE THEREWITH, SCRAPER MEANS CONSTRUCTED AND ARRANGED TO RECIPROCATING-F LY MOVE ACROSS SAID MARGINAL PERIPHERAL SURFACE OF SAID BOTTOM WALL AND THEREBY KEEP SAID SURFACE FREE OF COOLED GLASS TENDING TO COLLECT ON SAID SURFACE BY REASON OF SAID COOLING MEANS, AND MEANS FOR MAINTAINING A SUPPLY OF GLASS-FORMING INGREDIENTS PROXMATE SAID SURFACE.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |