US2734240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum pouring apparatus
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:42
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A VACUUM POURING APPARATUS FOR DEGASSING MOLTEN METAL AS IT IS POURED FROM A LADLE INTO A MOLD, THE COMBINATION COMPRISING A TUNDISH HAVING A TEEMING WELL AND A RUNNER DISPOSED TO RECEIVED AND DIRECT THE FLOW MOLTEN METAL INTO THE MOLD UNDER ATMOSPHERIC CONDITIONS, AN ELONGATED POURING CHAMBER DISPOSED BETWEEN THE LADLE AND THE TUNDISH AND HAVING AN END THEREOF EXTENDING INTO THE TEEMING WELL, A STORAGE WELL IN THE CHAMBER IN COMMUNICATION WITH THE TEEMING WELL, MEANS FOR SEALING TYHE OTHER END OF THE CHAMBER TO THE LADLE FOR RECEIVING MOLTEN METAL THEREFROM, MEANS FOR EVACUATING THE CHAMBER WHEN METAL IS POURED THERETHROUGH INTO THE TEEMING WELL, THE METAL IN THE TEEMING WELL UNDER ATMOSPHERIC CONDITIONS COOPERTING TO MAINTAIN A SUPPLY OF THE MOLTEN METAL IN THE STORAGE WELL TO EFFECTIVELY SEAL THE CHAMBER WHEREBY MOLTEN METAL PASSING THE EVACUATED CHAMBER IS DEGASSED.
Claim 2
Dependent Claim
146 words
IN A VACUUM POURING APPARATUS FOR DEGASSING MOLTEN METAL AS IT IS POURED FROM A LADLE INTO A MOLD, THE COMBINATION COMPRISING A TUNDISH HAVING A TEEMING WELL AND A RUNNER DISPOSED TO RECEIVED AND DIRECT THE FLOW MOLTEN METAL INTO THE MOLD UNDER ATMOSPHERIC CONDITIONS, AN ELONGATED POURING CHAMBER DISPOSED BETWEEN THE LADLE AND THE TUNDISH AND HAVING AN END THEREOF EXTENDING INTO THE TEEMING WELL, A STORAGE WELL IN THE CHAMBER IN COMMUNICATION WITH THE TEEMING WELL, MEANS FOR SEALING TYHE OTHER END OF THE CHAMBER TO THE LADLE FOR RECEIVING MOLTEN METAL THEREFROM, MEANS FOR EVACUATING THE CHAMBER WHEN METAL IS POURED THERETHROUGH INTO THE TEEMING WELL, THE METAL IN THE TEEMING WELL UNDER ATMOSPHERIC CONDITIONS COOPERTING TO MAINTAIN A SUPPLY OF THE MOLTEN METAL IN THE STORAGE WELL TO EFFECTIVELY SEAL THE CHAMBER WHEREBY MOLTEN METAL PASSING THE EVACUATED CHAMBER IS DEGASSED.
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) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |