US3260587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of melting glass with submerged combustion heaters and apparatus therefor
Assignee: Selas Corp of America
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Filing: 1962-12-05
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Granted: 1966-07-12
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Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 Hans R Dolf
- 👤 William E Marceau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:08
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/235; C03B5/2356; C03B3/00; C03B5/04; C03B5/20; C03B5/225; C03B5/2257; F; F23; F23C; F23C3/00; F23C3/004; F23C5/00; F23C5/08; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/78; F23M; F23M5/00; F23M5/02; F23M5/025; C03B2211/00; C03B2211/20; C03B2211/22; C03B2211/70; F23C2900/00; F23C2900/03005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
APPARATUS FOR MELTING GLASS INCLUDING A MELTING TANK HAVING FLOOR AND SIDE WALLS, SAID FLOOR BEING PROVIDED WITH A PLURALITY OF SPACED OPENINGS, A BURNER RECEIVED IN EACH OPENING WITH THE END OF EACH BURNER PROJECTING ABOVE THE LEVEL OF THE FLOOR, EACH BURNER INCLUDING A COMBUSTION CHAMBER WITH A DISCHARGE OPENING, SAID OPENING TERMINATING IN THE END PORTION OF THE BURNER PROJECTING ABOVE SAID FLOOR, MEANS TO SUPPLY GAS AND AIR TO SAID BURNER TO BE BURNED IN SAID COMBUSTION CHAMBER, MEANS TO DIRECT THE SUPPLY OF AIR TO THE COMBUSTION CHAMBER THROUGH SAID PROJECTING END PORTION TO COOL THE PORTION OF THE BURNER PROJECTING ABOVE SAID FLOOR, THE PRODUCTS OF COMBUSTION RESULTING FROM THE BURNING OF THE GAS AND AIR PASSING THROUGH SAID OPENING INTO SAID TANK, AND SUPPLY MEANS FOR MATERIAL TO BE MELTED EXTENDING INTO SAID TANK AND TERMINATING AT A LEVEL ADJACENT TO THE INTENDED LEVEL OF GLASS THEREIN.
Claim 2
Dependent Claim
154 words
APPARATUS FOR MELTING GLASS INCLUDING A MELTING TANK HAVING FLOOR AND SIDE WALLS, SAID FLOOR BEING PROVIDED WITH A PLURALITY OF SPACED OPENINGS, A BURNER RECEIVED IN EACH OPENING WITH THE END OF EACH BURNER PROJECTING ABOVE THE LEVEL OF THE FLOOR, EACH BURNER INCLUDING A COMBUSTION CHAMBER WITH A DISCHARGE OPENING, SAID OPENING TERMINATING IN THE END PORTION OF THE BURNER PROJECTING ABOVE SAID FLOOR, MEANS TO SUPPLY GAS AND AIR TO SAID BURNER TO BE BURNED IN SAID COMBUSTION CHAMBER, MEANS TO DIRECT THE SUPPLY OF AIR TO THE COMBUSTION CHAMBER THROUGH SAID PROJECTING END PORTION TO COOL THE PORTION OF THE BURNER PROJECTING ABOVE SAID FLOOR, THE PRODUCTS OF COMBUSTION RESULTING FROM THE BURNING OF THE GAS AND AIR PASSING THROUGH SAID OPENING INTO SAID TANK, AND SUPPLY MEANS FOR MATERIAL TO BE MELTED EXTENDING INTO SAID TANK AND TERMINATING AT A LEVEL ADJACENT TO THE INTENDED LEVEL OF GLASS THEREIN.
Claim 3
Independent Claim
129 words
THE METHOD OF MELTING GLASS IN A FURNACE HAVING A BOTTOM AND SIDE WALLS, WHICH COMPRISE INTRODUCING PRODUCTS OF COMBUSTION AT A TEMPERATURE ABOVE THE MELTING POINT OF GLASS AND AT A PRESSURE SUFFICIENTLY HIGH TO CREATE CURRENTS IN THE GLASS AND RISE TO THE SURFACE THEREOF THROUGH THE FLOOR OF THE FURNACE INTO THE GLASS AT A PLURALITY OF SPACED POINTS THAT ARE SPACED FROM THE WALLS OF THE FURNACE, AGITATING THE GLASS BY SAID PRODUCTS OF COMBUSTION AS THEY RISE TO MIX IT THOROUGHLY, AND CIRCULATING A COOLING MEDIUM IN HEAT EXCHAGE RELATION WITH THE GLASS IMMEDIATELY ADJACENT TO THE POINTS AT WHICH SAID PRODUCTS OF COMBUSTION ARE INTRODUCED SO THAT THE GLASS AROUND SAID POINTS IS SUBSTANTIALLY SOLID AND WILL FLOW VERY LITTLE, IF AT ALL.
Claim 4
Independent Claim
129 words
THE METHOD OF MELTING GLASS IN A FURNACE HAVING A BOTTOM AND SIDE WALLS, WHICH COMPRISE INTRODUCING PRODUCTS OF COMBUSTION AT A TEMPERATURE ABOVE THE MELTING POINT OF GLASS AND AT A PRESSURE SUFFICIENTLY HIGH TO CREATE CURRENTS IN THE GLASS AND RISE TO THE SURFACE THEREOF THROUGH THE FLOOR OF THE FURNACE INTO THE GLASS AT A PLURALITY OF SPACED POINTS THAT ARE SPACED FROM THE WALLS OF THE FURNACE, AGITATING THE GLASS BY SAID PRODUCTS OF COMBUSTION AS THEY RISE TO MIX IT THOROUGHLY, AND CIRCULATING A COOLING MEDIUM IN HEAT EXCHAGE RELATION WITH THE GLASS IMMEDIATELY ADJACENT TO THE POINTS AT WHICH SAID PRODUCTS OF COMBUSTION ARE INTRODUCED SO THAT THE GLASS AROUND SAID POINTS IS SUBSTANTIALLY SOLID AND WILL FLOW VERY LITTLE, IF AT ALL.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |