Patent US3106911A successfully refreshed from Google Patents.
US3106911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace door frame
Assignee: Republic Steel Corp
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Filing: 1961-03-29
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Granted: 1963-10-15
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Vincent P Traina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:49
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/18; F27D1/1858; F27D1/1866; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A WATER COOLED DOOR FRAME FOR METALLURGICAL FURNACES COMPRISING, MATING SYMMETRICAL SECTIONS, EACH INCLUDING FRONT, REAR, OUTSIDE, INSIDE AND CENTER WALLS, A HOLLOW LINTEL HAVING AN INLET CONNECTION ADJACENT THE CENTER SIDE WALL AND AN OUTLET CONNECTION ADJACENT THE CENTER WALL, A HOLLOW LEG CONNECTED WITH SAID LINTEL, A HOLLOW JAMB EXTENSION OFFSET REARWARDLY FROM THE REAR WALL OF SAID LEG AND HAVING A PARTITIONED NOSE PORTION PROJECTING REARWARDLY FROM SAID REAR JAMB EXTENSION, AND MEANS WITHIN SAID HOLLOW LEG LINTEL AND JAMB EXTENSION TO CONDUCT COOLING FLUID FROM SAID INLET CONNECTION TOWARD THE BOTTOM OF THE LEG AND THENCE UPWARDLY INTO AND THROUGH THE NOSE PORTION OF SAID JAMB EXTENSION AND BACK DOWN-
Claim 2
Dependent Claim
114 words
A WATER COOLED DOOR FRAME FOR METALLURGICAL FURNACES COMPRISING, MATING SYMMETRICAL SECTIONS, EACH INCLUDING FRONT, REAR, OUTSIDE, INSIDE AND CENTER WALLS, A HOLLOW LINTEL HAVING AN INLET CONNECTION ADJACENT THE CENTER SIDE WALL AND AN OUTLET CONNECTION ADJACENT THE CENTER WALL, A HOLLOW LEG CONNECTED WITH SAID LINTEL, A HOLLOW JAMB EXTENSION OFFSET REARWARDLY FROM THE REAR WALL OF SAID LEG AND HAVING A PARTITIONED NOSE PORTION PROJECTING REARWARDLY FROM SAID REAR JAMB EXTENSION, AND MEANS WITHIN SAID HOLLOW LEG LINTEL AND JAMB EXTENSION TO CONDUCT COOLING FLUID FROM SAID INLET CONNECTION TOWARD THE BOTTOM OF THE LEG AND THENCE UPWARDLY INTO AND THROUGH THE NOSE PORTION OF SAID JAMB EXTENSION AND BACK DOWN-
References Cited (Backward Citations)
US2529272A
Cited
GB774209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |