US3146503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Degasification of metal
Assignee: Bochumer Verein fuer Gussstahlfabrikation AG
•
Filing: 1961-09-27
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Granted: 1964-09-01
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Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Sickbert Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:04
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A TAPPING LADLE PROVIDED WITH A DISCHARGE OPENING THROUGH ITS BOTTOM AND HAVING AN AXIALLY MOVABLE STOPPER ROD FOR CONTROL OF THE DISCHARGE OPENING, IN COMBINATION THEREWITH, THE IMPROVEMENT WHICH COMPRISES A SEALING FLANGE SURROUNDING SAID LADLE, A COVER REMOVABLY POSITIONED IN VACUUM-TIGHT ENGAGEMENT WITH SAID SEALING FLANGE, A TUBE EXTENDING ALONGSIDE SAID LADLE THROUGH SAID FLANGE, AN AXIALLY MOVABLE CONTROL ROD EXTENDING THROUGH SAID TUBE INTO SAID COVER, A CROSS MEMBER CONNECTING SAID CONTROL ROD AND SAUD STOPPER ROD AND A SEALING MEMBER FORMING A VACUUM-TIGHT SLIDING SEAL BETWEEN SAID CONTROL ROD AND TUBE.
Claim 2
Dependent Claim
96 words
IN A TAPPING LADLE PROVIDED WITH A DISCHARGE OPENING THROUGH ITS BOTTOM AND HAVING AN AXIALLY MOVABLE STOPPER ROD FOR CONTROL OF THE DISCHARGE OPENING, IN COMBINATION THEREWITH, THE IMPROVEMENT WHICH COMPRISES A SEALING FLANGE SURROUNDING SAID LADLE, A COVER REMOVABLY POSITIONED IN VACUUM-TIGHT ENGAGEMENT WITH SAID SEALING FLANGE, A TUBE EXTENDING ALONGSIDE SAID LADLE THROUGH SAID FLANGE, AN AXIALLY MOVABLE CONTROL ROD EXTENDING THROUGH SAID TUBE INTO SAID COVER, A CROSS MEMBER CONNECTING SAID CONTROL ROD AND SAUD STOPPER ROD AND A SEALING MEMBER FORMING A VACUUM-TIGHT SLIDING SEAL BETWEEN SAID CONTROL ROD AND TUBE.
References Cited (Backward Citations)
CA469762A
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CA609687A
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US2253421A
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US2290961A
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US2322618A
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US2966709A
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US2832110A
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US2837790A
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US2962779A
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FR1236229A
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FR74274E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |