Patent US3946348A successfully refreshed from Google Patents.
US3946348A
Expired / Lapsed
US
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Radiation resistant ducted superconductive coil
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1974-05-01
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Granted: 1976-03-23
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Expires: 1994-05-01
Abstract
Abstract A radiation resistant ducted superconductive coil consists of a helically wound electrical conductor constituted by an electrically conductive core of superconductive material provided with a longitudinally extending cooling duct, the core being covered with a layer of inorganic insulating material and the latter being covered by an electrically conductive metallic gas-tight sheath. The metallic sheaths on adjacent turns of the coil are secured together.
Inventors
- 👤 Armin Schleich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:10
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/06; H01B; H01B13/00; H01B13/06; H01B13/08; H01B13/0891; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/882; Y10S505/884; Y10S505/885
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
90 words
An electrical superconductive coil formed by a helically wound insulated electrical conductor and which exhibits a high degree of resistance when exposed to strongly ionizing radiation, said electrical conductor being constituted by an electrically conductive core of superconductive material and which is provided with an internal longitudinally extending cooling duct, an insulating layer consisting of inorganic insulating material applied to said conductor core and an electrically conductive metallic gas-tight sheath completely covering the layer of inorganic insulating material, the metallic sheaths on adjacent turns of the coil being secured together.
Claim 2
Dependent Claim
90 words
An electrical superconductive coil formed by a helically wound insulated electrical conductor and which exhibits a high degree of resistance when exposed to strongly ionizing radiation, said electrical conductor being constituted by an electrically conductive core of superconductive material and which is provided with an internal longitudinally extending cooling duct, an insulating layer consisting of inorganic insulating material applied to said conductor core and an electrically conductive metallic gas-tight sheath completely covering the layer of inorganic insulating material, the metallic sheaths on adjacent turns of the coil being secured together.
Claim 3
Dependent Claim
38 words
An electrical coil as defined in claim 1 wherein said layer of inorganic insulating material on said conductor core is made from a material selected from the group consisting of a metal oxide, glass fibre, asbestos and mica.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |