发明名称 |
Assembly for use in the spark perforation of sheet material |
摘要 |
A spark perforation apparatus includes a rotary electrode assembly for effecting spark perforation of sheet material passing between the electrodes of the assembly and a suitably juxtapositioned earthed surface. The electrode assembly comprises a first set of annular electrodes for connection to a suitable power source, a second set of annular electrodes alternating with and of greater external diameter than the electrodes of the first set, and dielectrical material spacing the electrodes so as to form a series of parallel capacitors.
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申请公布号 |
US4447708(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19810279192 |
申请日期 |
1981.06.30 |
申请人 |
THE WIGGINS TEAPE GROUP LIMITED |
发明人 |
ALLEN, ROGER A.;HALL, ROBERT J. |
分类号 |
H01T14/00;B26F1/28;(IPC1-7):H05B7/18 |
主分类号 |
H01T14/00 |
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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