US3195335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil construction
Assignee: General Dynamics Corp
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Filing: 1962-12-07
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Granted: 1965-07-20
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 David F Brower
- 👤 Gamon B Hayward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN AN ELECTROMAGNETIC FORMING APPARATUS, A FORMING COIL ASSEMBLY COMPRISING A SLOTTED ANNULAR CORE OF CONDUCTIVE MATERIAL, AN INSULATED COIL OF CONDUCTIVE MATERIAL DISPOSED ON SAID CORE, A GENERALLY CYLINDRICAL FIELD SHAPING ELEMENT OF CONDUCTIVE MATERIAL REMOVABLY DISPOSED IN SAID CORE, SAID ELEMENT HAVING AN APERTURE THEREIN AND A SLOT EXTENDING BETWEEN THE OUTER SURFACE OF SAID ELEMENT AND SAID APERTURE, AND A WRAPPING OF ELECTRICALLY INSULATING MATERIAL DISPOSED BETWEEN SAID FIELD SHAPING ELEMENT AND SAID CORE.
Claim 2
Dependent Claim
77 words
IN AN ELECTROMAGNETIC FORMING APPARATUS, A FORMING COIL ASSEMBLY COMPRISING A SLOTTED ANNULAR CORE OF CONDUCTIVE MATERIAL, AN INSULATED COIL OF CONDUCTIVE MATERIAL DISPOSED ON SAID CORE, A GENERALLY CYLINDRICAL FIELD SHAPING ELEMENT OF CONDUCTIVE MATERIAL REMOVABLY DISPOSED IN SAID CORE, SAID ELEMENT HAVING AN APERTURE THEREIN AND A SLOT EXTENDING BETWEEN THE OUTER SURFACE OF SAID ELEMENT AND SAID APERTURE, AND A WRAPPING OF ELECTRICALLY INSULATING MATERIAL DISPOSED BETWEEN SAID FIELD SHAPING ELEMENT AND SAID CORE.
References Cited (Backward Citations)
US3126937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |