US3192582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom pour ladle nozzle and stopper rod construction
Assignee: Harbison Walker Refractories Co
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Filing: 1962-10-03
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Granted: 1965-07-06
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Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Cope
- 👤 Robert K Scott
- 👤 Jr Fred H Fanning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:09
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/50; B22D41/52; B22D41/54; B22D41/14; B22D41/16; F; F27; F27D; F27D3/00; F27D3/15; F27D3/1509; F27D3/1536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN VESSELS FOR HANDLING MOLTEN METAL, COMPRISED OF A SHELL, A REFRACTORY LINING IN THE SHELL, A STOPPER-HEAD AND STOPPER-ROD ASSEMBLY OPERATIVELY ASSOCIATED WITH SAID VESSEL, AND A POURING NOZZLE, THE IMPROVEMENT WHICH COMPRISES A FIRED BASIC REFRACTORY POURING NOZZLE HAVING AN INLET AND AN OUTLET, THE SURFACE AREAS OF THE NOZZLE WHICH DEFINE SAID INLET BEING DISPLACEABLE AT OPERATING TEMPERATURES TO A DEGREE SUFFICIENT TO PROVIDE A CONTIGUOUS SEAT SUBSTANTIALLY CONFORMING TO ADJACENT PORTIONS OF THE STOPPER-HEAD WHEN UNDER STOPPER-HEAD PRESSURE, AT LEAST THOSE PORTIONS OF THE STOPPER-HEAD WHICH CONTACT THE DISPLACEABLE AREAS OF THE NOZZLE FABRICATED OF A MATERIAL WHICH IS SUBSTANTIALLY INERT TO SAID DISPLACEABLE AREAS, SAID NOZZLE CONTACTING PORTIONS OF SAID STOPPER-HEAD BEING SUF-
Claim 2
Dependent Claim
118 words
IN VESSELS FOR HANDLING MOLTEN METAL, COMPRISED OF A SHELL, A REFRACTORY LINING IN THE SHELL, A STOPPER-HEAD AND STOPPER-ROD ASSEMBLY OPERATIVELY ASSOCIATED WITH SAID VESSEL, AND A POURING NOZZLE, THE IMPROVEMENT WHICH COMPRISES A FIRED BASIC REFRACTORY POURING NOZZLE HAVING AN INLET AND AN OUTLET, THE SURFACE AREAS OF THE NOZZLE WHICH DEFINE SAID INLET BEING DISPLACEABLE AT OPERATING TEMPERATURES TO A DEGREE SUFFICIENT TO PROVIDE A CONTIGUOUS SEAT SUBSTANTIALLY CONFORMING TO ADJACENT PORTIONS OF THE STOPPER-HEAD WHEN UNDER STOPPER-HEAD PRESSURE, AT LEAST THOSE PORTIONS OF THE STOPPER-HEAD WHICH CONTACT THE DISPLACEABLE AREAS OF THE NOZZLE FABRICATED OF A MATERIAL WHICH IS SUBSTANTIALLY INERT TO SAID DISPLACEABLE AREAS, SAID NOZZLE CONTACTING PORTIONS OF SAID STOPPER-HEAD BEING SUF-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |