发明名称 |
Adjustable air gap ferrite structures and methods of manufacture |
摘要 |
New fabricating methods and products are disclosed for manufacture and assembly of tunable-inductance magnetically-soft ferrite core assemblies. Pot core type elements are pressure molded from ferrimagnetic particles having residual reactivity; unitary helical threads are tapped in central openings of compacted core elements while in the green state; subsequent heat treatment converts the green compact to a ceramic. Use of a shrink tap provides compatibility of the unitary threads with the pre-threaded male adjustment members of the prior practice. A new assembly enables use of identical core half sections; provision is made for support at one or both longitudinal ends of the male tuning member.
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申请公布号 |
US4523170(A) |
申请公布日期 |
1985.06.11 |
申请号 |
US19820439370 |
申请日期 |
1982.11.05 |
申请人 |
SPANG & COMPANY |
发明人 |
HUTH, III, JOSEPH F. |
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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