US3072086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming conical and related shapes
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1958-04-14
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Granted: 1963-01-08
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Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 John R Birchfield
- 👤 Vartan A Gulaian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:09
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B21D22/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS FOR FORMING ESSENTIALLY CONICAL SHAPES, COMPRISING A SPLINED SHAFT SUPPORTED AT ONE END AND PROVIDED AT ITS OPPOSITE END WITH A CONICAL SHAPING MEMBER, A MANDREL MEMBER HAVING A FLANGE AT ONE END AND THREADABLY MOUNTED UPON THE SHAFT FOR CIRCUMFERENTIAL AND AXIAL TRAVEL THEREALONG, MEANS FOR CLAMPING A GENERALLY FLAT CIRCULAR SURFACE TO THE MANDREL FLANGE WITH THE RADIAL CENTER OF SAID SURFACE ABUTTING THE VERTEX OF THE CONICAL SHAPING MEMBER, AND MEANS MOUNTED ON THE APPARATUS FOR SIMULTANEOUSLY ROTATING THE SHAFT AND MOVING THE MANDREL THEREALONG TO ROTATE THE SURFACE AND AXIALLY EXTRUDE THE SAME INTO CONFORMANCE WITH THE CONTOURS OF THE CONICAL SHAPING MEMBER.
Claim 2
Dependent Claim
108 words
APPARATUS FOR FORMING ESSENTIALLY CONICAL SHAPES, COMPRISING A SPLINED SHAFT SUPPORTED AT ONE END AND PROVIDED AT ITS OPPOSITE END WITH A CONICAL SHAPING MEMBER, A MANDREL MEMBER HAVING A FLANGE AT ONE END AND THREADABLY MOUNTED UPON THE SHAFT FOR CIRCUMFERENTIAL AND AXIAL TRAVEL THEREALONG, MEANS FOR CLAMPING A GENERALLY FLAT CIRCULAR SURFACE TO THE MANDREL FLANGE WITH THE RADIAL CENTER OF SAID SURFACE ABUTTING THE VERTEX OF THE CONICAL SHAPING MEMBER, AND MEANS MOUNTED ON THE APPARATUS FOR SIMULTANEOUSLY ROTATING THE SHAFT AND MOVING THE MANDREL THEREALONG TO ROTATE THE SURFACE AND AXIALLY EXTRUDE THE SAME INTO CONFORMANCE WITH THE CONTOURS OF THE CONICAL SHAPING MEMBER.
References Cited (Backward Citations)
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US1968296A
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US2069356A
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US2624303A
Cited
US2921549A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |