| 发明名称 |
Channelled plastic pipe with channel ends closed and method of producing the same. |
| 摘要 |
<p>A plastic pipe having air channels (1d) axially extending through the wall thereof, with a least one of the respective ends of the air channels closed by an annular slotted channel-closure (10) filled with a caulking material (11) in its annular slot. The channel-closure is force-fitted on the pipe end, so that the caulking material is pressed into the air channels.</p> |
| 申请公布号 |
EP0052017(A1) |
申请公布日期 |
1982.05.19 |
| 申请号 |
EP19810305352 |
申请日期 |
1981.11.11 |
| 申请人 |
KUBOTA TEKKO KABUSHIKI KAISHA |
发明人 |
OHTA, RYOZO;ITOH, TAKEHIRO;TOYOSHIMA, HISHAYOSHI;YOSHIKAWA, JUN |
| 分类号 |
B29C45/00;B29C57/00;B29C57/02;B29C57/04;B29C57/10;B29L23/00;B29L31/24;F16L9/18;F16L47/08;(IPC1-7):16L47/06;16L9/18;29C17/02 |
主分类号 |
B29C45/00 |
| 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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