Patent US2653741A successfully refreshed from Google Patents.
Patent US3554670A successfully refreshed from Google Patents.
US3554670A
Expired / Lapsed
US
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Electromagnetic conveying trough for the transport of liquid metals
Assignee: SMS Elotherm GmbH
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Filing: 1968-11-12
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Granted: 1971-01-12
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Expires: 1988-11-12
Abstract
Abstract A LIQUID METAL CONVEYOR OF THE INDUCTION TYPE WITH A GRADUALLY ASCENDING LIQUID-METAL TROUGH, HAS THE UPPER END OF THE TROUGH BENT TOWARD THE HORIZONTAL. THIS AVOIDS THE TENDENCY OF LIQUID METAL TO STAGNATE AT THE UPPER END WHERE THE END POLE DIVISION OF THE INDUCTION WINDING TENDS TO PRODUCE A WEAKER ELECTROMAGNETIC FIELD.
Inventors
- 👤 Axel Von Starck
- 👤 Friedrich Schnake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:38
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/003; B22D39/006; Y; Y10; Y10T; Y10T83/00; Y10T83/647
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |