Composite materials
Patent 3963425 Issued on June 15, 1976. Estimated Expiration Date: 
June 15, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 15, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3331041 3366728 3514850 3625662 3710000 3730967 InventorAssigneeApplicationNo. 507993 filed on 09/20/1974US Classes:428/608, Embodying fibers interengaged or between layers (e.g., paper, etc.)174/125.1, Superconductors257/E39.017, Permanent superconductor devices (EPO)428/593, Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components (e.g., parallel, inter- secting, etc.)428/614, Laterally noncoextensive components (e.g., embedded, etc.)428/675, Next to Co-, Cu-, or Ni-base component428/921, Fire or flameproofing428/930, Electric superconducting505/812, Stock: (Class 428, 428/930)505/813Wire, tape, or filmExaminersPrimary: Rutledge, L. DewayneAssistant: Lewis, Michael Attorney, Agent or FirmInternational ClassH01L 39/14 (20060101)Foreign Application Priority Data1971-04-15 UKAbstractA superconductor composite comprising at least one longitudinally extending superconductor filament or bundle of sub-filaments, each filament or bundle of sub-filaments being surrounded by and in good electrical contact with a matrix material, the matrix material comprising a plurality of longitudinally extending cells of a metal of high electrical conductivity surrounded by a material of lower electrical conductivity, the high electrical conductivity material surrounding the at least one superconducting filament or bundle of subfilaments being interrupted by a radially extending wall of the material of the lower electrical conductivity, the arrangement being such that where at least two superconductor filaments or sub-filaments are circumferentially circumscribed by a single annulus of the material of high electrical conductivity, the annulus is electrically interrupted by a radially extending wall of the material of low electrical conductivity. | |
