Patent US2743307A successfully refreshed from Google Patents.
US2743307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium furnace or the like
Assignee: Westinghouse Electric Corp
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Filing: 1955-01-05
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Granted: 1956-04-24
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Expires: 1975-01-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; H; H05; H05B; H05B7/00; H05B7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A FURNACE FOR MELTING AND CASTING METAL, COMPRISING A SUBSTANTIALLY HERMETICALLY SEALED ENCLOSURE INCLUDING A REMOVABLE METAL MOLD LINER HAVING AT LEAST AN OPEN TOP END, A COOLING-LIQUID JACKET SURROUNDING SAID MOLD LINER, AND SEALING RINGS FOR SEALING THE RESPECTIVE ENDS OF SAID MOLD LINER TO THE RESPECTIVE ENDS OF SAID JACKET IN A MANNER SUCH AS TO MAINTAIN THE SUBSTANTIALLY HERMETIC SEALING OF THE ENCLOSURE AND THE SUBSTANTIALLY LIQUID-TIGHT QUALITY OF THE JACKET, SAID SEALING RINGS INCLUDING AT LEAST ONE SEALING RING BETWEEN THE OUTER SURFACE OF SAID MOLD LINER AND A BORE AT ONE END OF THE JACKET, SAID SEALING RINGS FURTHER INCLUDING AT LEAST ONE SEALING RING BETWEEN A TRANSVERSE SURFACE OF THE MOLD LINER AND A TRANSVERSE SURFACE OF THE JACKET AT ONE END OF THE MOLD LINES.
Claim 2
Dependent Claim
132 words
A FURNACE FOR MELTING AND CASTING METAL, COMPRISING A SUBSTANTIALLY HERMETICALLY SEALED ENCLOSURE INCLUDING A REMOVABLE METAL MOLD LINER HAVING AT LEAST AN OPEN TOP END, A COOLING-LIQUID JACKET SURROUNDING SAID MOLD LINER, AND SEALING RINGS FOR SEALING THE RESPECTIVE ENDS OF SAID MOLD LINER TO THE RESPECTIVE ENDS OF SAID JACKET IN A MANNER SUCH AS TO MAINTAIN THE SUBSTANTIALLY HERMETIC SEALING OF THE ENCLOSURE AND THE SUBSTANTIALLY LIQUID-TIGHT QUALITY OF THE JACKET, SAID SEALING RINGS INCLUDING AT LEAST ONE SEALING RING BETWEEN THE OUTER SURFACE OF SAID MOLD LINER AND A BORE AT ONE END OF THE JACKET, SAID SEALING RINGS FURTHER INCLUDING AT LEAST ONE SEALING RING BETWEEN A TRANSVERSE SURFACE OF THE MOLD LINER AND A TRANSVERSE SURFACE OF THE JACKET AT ONE END OF THE MOLD LINES.
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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |