- 专利标题： Method and system for pressure pipe drilling cement-mortar lined and coated steel cylinders
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申请号： US17446851申请日： 2021-09-03
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公开(公告)号： US11965617B2公开(公告)日： 2024-04-23
- 发明人: Gilles Gagnon , Michael Davison , Martin Bureau
- 申请人： SANEXEN ENVIRONMENTAL SERVICES INC.
- 申请人地址： CA Brossard
- 专利权人： SANEXEN ENVIRONMENTAL SERVICES INC.
- 当前专利权人： SANEXEN ENVIRONMENTAL SERVICES INC.
- 当前专利权人地址： CA Brossard
- 代理机构： LAVERY, DE BILLY, LLP
- 代理商 Gwendoline Bruneau
- 主分类号： F16L41/06
- IPC分类号： F16L41/06
摘要：
A method for pressure pipe drilling a pipe comprising an exterior layer and an interior layer, the method comprising internally lining the pipe with a fluid-tight sheath; drilling a first cavity through the exterior layer until exposing the interior layer; injecting a sealant into the first cavity; and drilling a second cavity within the first cavity through the interior layer and the fluid-tight sheath.
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