| 发明名称 |
Method for introducing an internal helical formation into a flexible tubular material |
| 摘要 |
There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed. |
| 申请公布号 |
US7968036(B2) |
申请公布日期 |
2011.06.28 |
| 申请号 |
US20080082157 |
申请日期 |
2008.04.10 |
| 申请人 |
TAYSIDE FLOW TECHNOLOGIES LIMITED |
发明人 |
HOUSTON JOHN GRAEME;STONEBRIDGE PETER ARNO;DICK JOHN BRUCE CAMERON;HOOD ROBERT GORDON;JOHNSTONE ALLANA;SARRAN CHRISTOPHE EMMANUEL;DUFF CRAIG MCLEOD |
| 分类号 |
B29C57/00;A61F2/06;B29C53/62;B29C59/00;B29C59/02;B29K75/00;B29L23/24;B31F1/20;F15D1/06;F16L11/20 |
主分类号 |
B29C57/00 |
| 代理机构 |
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代理人 |
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