发明名称 |
Foamed polyurethane pipeline pig |
摘要 |
<p>Cylindrical body of sponge-like material has a core of soft, flexible foamed plastics and a continuous core covering all over the body's periphery made of harder, more durable foamed plastics. Preferably a layer of flexible, impervious material covers one end of the body, for sealing engagement with a pipe wall. Pig is suitably "bullet" shaped.</p> |
申请公布号 |
BE759631(A1) |
申请公布日期 |
1971.04.30 |
申请号 |
BED759631 |
申请日期 |
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申请人 |
GIRARD HARRY J., 3202 HUNTINGDON PLACE, HOUSTON, TEXAS, (E.U.A.), |
发明人 |
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分类号 |
B08B9/04;(IPC1-7):08B/ |
主分类号 |
B08B9/04 |
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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