发明名称 |
Bellows device |
摘要 |
A bellows device having a plurality of recesses and ridges in the direction of expansion and contraction is used for a movable part of a vacuum switch tube. The thickness of an middle part in the direction of expansion and contraction is 1.2 times or more than the thickness of a part placed adjacent the middle part. The middle part has three or more ridges.
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申请公布号 |
US4585913(A) |
申请公布日期 |
1986.04.29 |
申请号 |
US19840640324 |
申请日期 |
1984.08.13 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YORITA, MITSUMASA |
分类号 |
F16J3/04;F16J15/52;H01H33/662;(IPC1-7):H01H33/66;F16L11/00;F16L21/00 |
主分类号 |
F16J3/04 |
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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