发明名称 |
DEVICE FOR CUTTING APERTURES IN TUBES, AND A TUBE WITH APERTURES MANUFACTURED IN SUCH WAY |
摘要 |
<p>An improved pipe having an incised aperture wherein the length and/or width of the aperture increases from the interior surface of the pipe to the exterior thereof; a process and apparatus for cutting an aperture in the surface of a pipe in which means for revolving a cutter about the pipe to be cut are provided and means for moving the cutting surface in an epitrochoid path as it passes through the exterior surface of said pipe.</p> |
申请公布号 |
YU139873(A) |
申请公布日期 |
1982.02.28 |
申请号 |
YU19730001398 |
申请日期 |
1973.05.28 |
申请人 |
HELGER WILHELM |
发明人 |
HELGER WILHELM |
分类号 |
B23C3/28;B23B5/14;B23B5/36;B26D3/00;B26F1/00;B29C45/00;B29C57/00;E02B11/00;(IPC1-7):29C17/10;02B11/00 |
主分类号 |
B23C3/28 |
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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