Patent US3350185A successfully refreshed from Google Patents.
US3350185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of eliminating a foam blanket on the surface of molten glass
Assignee: OI Glass Inc
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Filing: 1965-01-18
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Granted: 1967-10-31
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Expires: 1985-01-18
Abstract
No abstract record available.
Inventors
- 👤 Robert R Rough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:15
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/235; C03B5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A METHOD OF PRODUCING GLASS IN THE MELTING PORTION OF A DIRECT-FIRED GLASS MELTING FURNACE, INCLUDING PRODUCING SUCH GLASS, AT LEAST IN PART, FROM GLASS BATCH MATERIALS BY TRANSFORMING SAID GLASS BATCH MATERIALS INTO MOLTEN GLASS UNDER THE INFLUENCE OF COMBUSTION HEAT GENERATED IN SAID MELTING PORTION BY A CONSTANT COMBUSTION OF FUEL IN AN OXYGEN CONTAINING COMBUSTION ATMOSPHERE OVERLYING SAID GLASS BATCH AND MOLTEN GLASS, WHICH METHOD TENDS TO PRODUCE AN ACCUMULATION OF FOAM ON THE SURFACE ON SAID MOLTEN GLASS, THE IMPROVEMENT IN SAID METHOD COMPRISING INTERMITTENTLY VARYING THE OXYGEN CONTENT OF SAID COMBUSTION ATMOSPHERE, WHEREBY SAID FOAM IS CAUSED TO BE DISSIPATED FROM THE SURFACE OF SAID MOLTEN GLASS.
Claim 2
Dependent Claim
113 words
IN A METHOD OF PRODUCING GLASS IN THE MELTING PORTION OF A DIRECT-FIRED GLASS MELTING FURNACE, INCLUDING PRODUCING SUCH GLASS, AT LEAST IN PART, FROM GLASS BATCH MATERIALS BY TRANSFORMING SAID GLASS BATCH MATERIALS INTO MOLTEN GLASS UNDER THE INFLUENCE OF COMBUSTION HEAT GENERATED IN SAID MELTING PORTION BY A CONSTANT COMBUSTION OF FUEL IN AN OXYGEN CONTAINING COMBUSTION ATMOSPHERE OVERLYING SAID GLASS BATCH AND MOLTEN GLASS, WHICH METHOD TENDS TO PRODUCE AN ACCUMULATION OF FOAM ON THE SURFACE ON SAID MOLTEN GLASS, THE IMPROVEMENT IN SAID METHOD COMPRISING INTERMITTENTLY VARYING THE OXYGEN CONTENT OF SAID COMBUSTION ATMOSPHERE, WHEREBY SAID FOAM IS CAUSED TO BE DISSIPATED FROM THE SURFACE OF SAID MOLTEN GLASS.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |