US3268958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slow pouring and casting system for ferrous and other metals
Assignee: Heppenstall Co
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Filing: 1963-12-19
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Granted: 1966-08-30
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Sickbert Adolf Heinric Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:25
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/10; B22D11/11; B22D17/00; B22D17/14; B22D18/00; B22D18/06; C; C22; C22B; C22B9/00; C22B9/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
SLOW POURING AND CASTING METHOD FOR METALS, COMPRISNG, IN COMBINATON, POURING MOLTEN METAL INTO AN EVACUATED TEEMING MEMBER TO FRAGMENT AND DEGAS SUCH POUTED MOLTEN METAL AS IT FALLS, MAINTAINING A SELECTED TEMPERATURE OF THE DEGASSED MOLTEN METAL IN SAID TEEMING MEMBER, TEEMING DEGASSED MOLTEN METAL FROM SAID TEEMING MEMBER WITHOUT EXPOSURE TO AIR AT A SELECTED RELATIVELY SLOW RATE, EVACUATNG A MOLTE METAL FROM SAID TEEMING MEMBER TO RECEIVE AND FURTHER DEGAS SAID TEEMED MOLTETEN METAL, QUICKLY MOLDING AND FREEZING THE TEEMED MOLTEN METAL IN INGOT FORM IN A COOLABLE RING MOLD WITH A RELATIVELY THIN METAL LAYER AT THE VERY TOP OF SAID INGOT, FREEZING SAID TEEMED MOLTEN METAL SUBSTANTIALLY AT THE RATE OF ITS TEEMING, MAINTAINING THE SURFACE OF SAID THIN MOLTEN METAL LAYER OPEN WITHOUT CRUSTING AND BRIDGING, AND MOVING SAID INGOT DOWNWARDLY RELATIVE TO SAID RING MOLD IN CORRESPONDENCE WITH THE RATE OF TEEMING AND FREEZING.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |