Patent US3174739A successfully refreshed from Google Patents.
US3174739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nose for furnace tap-hole runner
Assignee: United States Steel Corp
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Filing: 1962-08-02
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Granted: 1965-03-23
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Miller Reuben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:48
CPC Classifications
B; B22; B22D; B22D35/00; B22D35/04; F; F27; F27D; F27D3/00; F27D3/14; F27D3/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A RUNNER WHICH INCLUDES A METAL SHELL AND A REFRACTORY LINING, SAID SHELL BEING FORMED OF A BOTTOM PLATE, SIDE PLATES SLOPING UPWARDLY FROM SAID BOTTOM PLATE, SIDE FLANGES FIXED TO THE ENDS OF SAID SIDE PLATES, AND A BOTTOM FLANGE FIXED TO SAID BOTTOM WALL AND LYING BETWEEN SAID SIDE WALLS AND SPACED INWARDLY FROM THE END OF SAID BOTTOM WALL AND FROM SAID SIDE FLANGES, SAID LINING BEING FORMED OF A PERMANENT MONOLITHIC LAYER COVERING THE INSIDE OF SAID BOTTOM PLATE, SAID BOTTOM FLANGE AND SAID SIDE PLATES, AND A SEMIPERMANENT BOTTOM LAYER OVERLYING SAID MONOLITHIC LAYER, THE COMBINATION THEREWITH OF A TEMPORARY NOSE AT THE DISCHARGE END COMPRISING CLIPS FIXED TO THE OUTSIDE FACES OF THE RESPECTIVE SIDE FLANGES, A METAL RETAINER SUPPORTED BY SAID CLIPS AND EXTENDING BETWEEN SAID SIDE FLANGES, AND A BODY OF REPLACEABLE REFRACTORY BUILT UP IN THE SPACE BETWEEN SAID RETAINER AND SAID MONOLITHIC LAYER AND FORMING A CONTINUATION OF SAID BOTTOM LAYER AND EXTENDING BEYOND SAID SHELL.
Claim 2
Dependent Claim
167 words
IN A RUNNER WHICH INCLUDES A METAL SHELL AND A REFRACTORY LINING, SAID SHELL BEING FORMED OF A BOTTOM PLATE, SIDE PLATES SLOPING UPWARDLY FROM SAID BOTTOM PLATE, SIDE FLANGES FIXED TO THE ENDS OF SAID SIDE PLATES, AND A BOTTOM FLANGE FIXED TO SAID BOTTOM WALL AND LYING BETWEEN SAID SIDE WALLS AND SPACED INWARDLY FROM THE END OF SAID BOTTOM WALL AND FROM SAID SIDE FLANGES, SAID LINING BEING FORMED OF A PERMANENT MONOLITHIC LAYER COVERING THE INSIDE OF SAID BOTTOM PLATE, SAID BOTTOM FLANGE AND SAID SIDE PLATES, AND A SEMIPERMANENT BOTTOM LAYER OVERLYING SAID MONOLITHIC LAYER, THE COMBINATION THEREWITH OF A TEMPORARY NOSE AT THE DISCHARGE END COMPRISING CLIPS FIXED TO THE OUTSIDE FACES OF THE RESPECTIVE SIDE FLANGES, A METAL RETAINER SUPPORTED BY SAID CLIPS AND EXTENDING BETWEEN SAID SIDE FLANGES, AND A BODY OF REPLACEABLE REFRACTORY BUILT UP IN THE SPACE BETWEEN SAID RETAINER AND SAID MONOLITHIC LAYER AND FORMING A CONTINUATION OF SAID BOTTOM LAYER AND EXTENDING BEYOND SAID SHELL.
References Cited (Backward Citations)
US1625755A
Cited
US1149203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |