发明名称 |
TUNABLE-INDUCTANCE MAGNETICALLY-SOFT FERRITE CORE STRUCTURES AND METHODS OF MANUFACTURE. |
摘要 |
New ferrite tuning assemblies are disclosed in which a unitary ferrite shaft is covered with a nonmagnetic material to provide a peripheral working surface for coacting with unitary helical thread means in the central opening of a core element to provide axial movement, for air gap adjustment purposes, by cutting and/or deforming at least a portion of the peripheral working surface of the tuning member. Various longitudinal and transverse cross-sectional configurations for the integral male tuning member are made available by the fabrication and assembly methods taught; assembly of inductance-tunable ferrite devices is facilitated by enabling insertion of a male tuning member into the central opening of either core element in an assembly and tuning from either longitudinal end of the aligned central openings. |
申请公布号 |
EP0125296(A4) |
申请公布日期 |
1985.06.06 |
申请号 |
EP19830903859 |
申请日期 |
1983.11.03 |
申请人 |
SPANG INDUSTRIES INC. |
发明人 |
OLMSTED, ROBERT, W.;HUTH, JOSEPH, F., III |
分类号 |
H01F21/06;H01F41/02;(IPC1-7):H01F21/06 |
主分类号 |
H01F21/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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