US3268959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vertical casting of hollow metalic bodies
Assignee: CIVILE DITE SOCIETE CIVILLE D'ETUDES DE CENTRIFUGATION Ste
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Filing: 1963-04-15
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Granted: 1966-08-30
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Babel Louis
- 👤 Peytavin Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:46
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/14; B22D11/144; B22D11/006; B22D13/00; B22D13/02; B22D13/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
APPARATUS FOR CASTING METAL COMPRISING A MANDREL MOUNTED TO ROTATE ABOUT A VERTICAL AXIS, A HOLLOW MOULD ENCIRCLING SAID MANDREL AND MOUNTED TO ROTATE ABOUT AN AXIS PARALLEL TO BUT SLIGHTLY SPACED FROM THE AXIS OF SAID MANDREL SO THAT THE INNER WALL OF THE MOULD APPROACHES THE OUTER WALL OF SAID MANDREL MORE CLOSELY AT ONE POINT ON ITS PERIPHERY THAN ELSEWHERE, AND MEANS FOR SUPPLYING MOLTEN METAL TO SAID MOULD AT AN ANGULAR DISTANCE OF BETWEEN 30 AND 120* FROM SAID ONE POINT PRECEDING THE POINT AT WHICH THE MANDREL AND MOULD ARE CLOSET.
Claim 2
Dependent Claim
96 words
APPARATUS FOR CASTING METAL COMPRISING A MANDREL MOUNTED TO ROTATE ABOUT A VERTICAL AXIS, A HOLLOW MOULD ENCIRCLING SAID MANDREL AND MOUNTED TO ROTATE ABOUT AN AXIS PARALLEL TO BUT SLIGHTLY SPACED FROM THE AXIS OF SAID MANDREL SO THAT THE INNER WALL OF THE MOULD APPROACHES THE OUTER WALL OF SAID MANDREL MORE CLOSELY AT ONE POINT ON ITS PERIPHERY THAN ELSEWHERE, AND MEANS FOR SUPPLYING MOLTEN METAL TO SAID MOULD AT AN ANGULAR DISTANCE OF BETWEEN 30 AND 120* FROM SAID ONE POINT PRECEDING THE POINT AT WHICH THE MANDREL AND MOULD ARE CLOSET.
Claim 3
Independent Claim
52 words
THE METHOD OF MAKING HOLLOW CASTINGS BY VERTICAL CONTINUOUS CASTING COMPRISING THE STEPS OF ROTATING A FIRST CYLINDRICAL SURFACE WITHIN A SECOND CYLINDRICAL SURFACE ABOUT AN AXIS DISPLACED FROM BUT PARALLEL TO THAT OF SAID SECOND CYLINDRICAL SURFACE SO THAT SAID SURFACES APPROACH EACH OTHER MOST CLOSELY AT ONE PARTICULAR POSITION AND
Claim 4
Independent Claim
52 words
THE METHOD OF MAKING HOLLOW CASTINGS BY VERTICAL CONTINUOUS CASTING COMPRISING THE STEPS OF ROTATING A FIRST CYLINDRICAL SURFACE WITHIN A SECOND CYLINDRICAL SURFACE ABOUT AN AXIS DISPLACED FROM BUT PARALLEL TO THAT OF SAID SECOND CYLINDRICAL SURFACE SO THAT SAID SURFACES APPROACH EACH OTHER MOST CLOSELY AT ONE PARTICULAR POSITION AND
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 |