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US3208740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus
Assignee: Midland Ross Corp
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Filing: 1963-10-11
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Granted: 1965-09-28
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 John D Nesbitt
- 👤 Herbert M Kohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:17
CPC Classifications
C; C03; C03B; C03B29/00; C03B29/04; C03B29/06; C03B29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A GLASS TEMPERING LEHR OF THE TYPE HAVING OPPOSITELY DISPOSED SIDE WALLS AND MEANS FOR CONVEYING GLASS SHEETS THERETHROUGH IN A VERTICAL POSITION, THE IMPROVEMENT COMPRISING; A PLURALITY OF BURNERS MOUNTED EXTERIOR OF THE FURNACE, COMBUSTION AIR SUPPLY MEANS FOR DELIVERY A STREAM OF COMBUSTION AIR TO EACH OF SAID BURNERS AT A SUBSTANTIALLY CONSTANT RATE, FUEL SUPPLY MEANS FOR DELIVERING A STREAM OF FUEL TO EACH OF SAID BURNERS, AND A PLURALITY OF COMBUSTION TUBES MOUNTED WITHIN THE FURANCE BETWEEN THE PATH OF MOVEMENT OF THE GLASS SHEETS AND THE SIDE WALLS, EACH OF SAID TUBES HAVING A SUBSTANTIALLY STRIAGHT PORTING EXTENDING PARALLEL TO THE PATH OF MOVEMENT OF THE GLASS SHEETS AND A CURVED PORTION IN FLUID COMMUNICATION WITH ONE OF SAID BURNERS, SAID SUBSTANTIALLY STRAIGHT PORTION HAVING A PLURALITY OF OUTLETS IN FLUIDS COMMUNICATION WITH THE INTERIOR OF THE FURNACE WHEREBY PRODUCTS OF COMBUSTION FROM SAID BURNER ARE TRANSFERRED THROUGH SAID CURVED PORTION INTO THE FURNACE THROUGH SAID PLURALITY OF OUTLETS.
Claim 2
Dependent Claim
165 words
IN A GLASS TEMPERING LEHR OF THE TYPE HAVING OPPOSITELY DISPOSED SIDE WALLS AND MEANS FOR CONVEYING GLASS SHEETS THERETHROUGH IN A VERTICAL POSITION, THE IMPROVEMENT COMPRISING; A PLURALITY OF BURNERS MOUNTED EXTERIOR OF THE FURNACE, COMBUSTION AIR SUPPLY MEANS FOR DELIVERY A STREAM OF COMBUSTION AIR TO EACH OF SAID BURNERS AT A SUBSTANTIALLY CONSTANT RATE, FUEL SUPPLY MEANS FOR DELIVERING A STREAM OF FUEL TO EACH OF SAID BURNERS, AND A PLURALITY OF COMBUSTION TUBES MOUNTED WITHIN THE FURANCE BETWEEN THE PATH OF MOVEMENT OF THE GLASS SHEETS AND THE SIDE WALLS, EACH OF SAID TUBES HAVING A SUBSTANTIALLY STRIAGHT PORTING EXTENDING PARALLEL TO THE PATH OF MOVEMENT OF THE GLASS SHEETS AND A CURVED PORTION IN FLUID COMMUNICATION WITH ONE OF SAID BURNERS, SAID SUBSTANTIALLY STRAIGHT PORTION HAVING A PLURALITY OF OUTLETS IN FLUIDS COMMUNICATION WITH THE INTERIOR OF THE FURNACE WHEREBY PRODUCTS OF COMBUSTION FROM SAID BURNER ARE TRANSFERRED THROUGH SAID CURVED PORTION INTO THE FURNACE THROUGH SAID PLURALITY OF OUTLETS.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |