| 发明名称 | Helically wound metal pipe with sealing arrangement | ||
| 摘要 | A pipe includes a tubular pipe formed of a metal sheet that is spirally wound such that opposite edges of the metal sheet are joined by a crimped lock seam that extends helically along a length of the tubular pipe. A sealing arrangement includes a helically extending worked surface band extending along the crimped lock seam and to both sides of the crimped lock seam, the worked surface band having a surface roughness that is greater than a surface roughness of unworked surface portions outside of the worked surface band. A helically extending external coating band is applied over the crimped lock seam and bonded to the worked surface band. | ||
| 申请公布号 | US9057461(B2) | 申请公布日期 | 2015.06.16 |
| 申请号 | US201213419047 | 申请日期 | 2012.03.13 |
| 申请人 | CONTECH ENGINEERED SOLUTIONS LLC | 发明人 | Swarny Mark J.;Aberle Daniel W.;Byrne, Jr. Gregory W. |
| 分类号 | F16L11/16;F16L9/16;E03B3/02 | 主分类号 | F16L11/16 |
| 代理机构 | Thompson Hine LLP | 代理人 | Thompson Hine LLP |
| 主权项 | 1. A pipe, comprising: a tubular pipe formed of a metal sheet that is spirally wound such that opposite edges of the metal sheet are joined by a crimped lock seam that extends helically along a length of the tubular pipe; a sealing arrangement comprising: a helically extending worked surface band extending along the crimped lock seam and to both sides of the crimped lock seam, the worked surface band having a surface roughness that is greater than a surface roughness of unworked surface portions outside of the worked surface band;a helically extending external coating band applied over the crimped lock seam and bonded to the worked surface band; wherein the coating band is an elastomeric material. | ||
| 地址 | West Chester OH US | ||