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公开(公告)号：US09273801B1
公开(公告)日：2016-03-01
申请号：US14135688
申请日：2013-12-20
CPC分类号： F16L55/1608 , E03B1/00 , E03B7/006 , E03F3/06 , E03F2003/065 , F16L1/038 , F16L55/1604 , F16L55/1654 , F16L55/1657
摘要： A method of in-situ pipeline replacement in which valves, fittings, and other obstructions are removed from an existing pipeline, a heat-fusible polymer pipeline having an initially deformed configuration less than the existing pipeline diameter is inserted into the remaining portions of the existing pipeline and reformed to substantially conform to the inside diameter of the existing pipeline, heat-fusible fittings are provided to replace removed portions of the existing pipeline and heat-fused to the polymer liner, and transition fittings provided to operably connect the replacement pipeline to those portions of the existing pipeline not within the replacement scope. The completed replacement polymer pipeline creates an operable wetted pressure boundary within the bounds of the replaced existing pipeline.
摘要翻译： 一种现有的管道更换方法，其中阀门，配件和其他障碍物从现有管道中移除，具有小于现有管道直径的初始变形构造的热熔聚合物管道被插入到现有管道的剩余部分 管道并重整成基本上符合现有管道的内径，提供热熔接头来替代现有管道的已移除部分并热熔合到聚合物衬套，以及设置用于可操作地将替换管道连接到那些 现有管道的一部分不在更换范围内。 完成的替代聚合物管道在替换的现有管道的范围内创建可操作的润湿压力边界。
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公开(公告)号：US10550961B2
公开(公告)日：2020-02-04
申请号：US16121073
申请日：2018-09-04
IPC分类号： F16L1/028
摘要： An apparatus and a method of extracting buried lead water supply pipe with minimal excavation and which allows removal and containment of the lead pipe. The extraction apparatus includes a frame having an upwardly extending mast, a guide pulley mounted on the frame, and a pulling apparatus mounted on the mast. A take-up spool is mounted on the mast between the guide pulley and pulling apparatus and positioned to force a pipe pulling cable into a non-linear path between the guide pulley and the pulling apparatus. Extracted pipe is pulled into the non-linear path until the pipe is fully extracted from the ground. Multiple spiral loops around the take-up spool by the pulling cable may be necessary to fully contain the extracted pipe. Following extraction, the pipe may be unspooled from the take-up spool, the pulling cable removed for re-use, and the pipe may then be sent for disposal.
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3.发明申请公开(公告)号：US20160178109A1
公开(公告)日：2016-06-23
申请号：US15055010
申请日：2016-02-26
CPC分类号： F16L55/1608 , E03B1/00 , E03B7/006 , E03F3/06 , E03F2003/065 , F16L1/038 , F16L55/1604 , F16L55/1654 , F16L55/1657
摘要： A method of in-situ pipeline replacement in which valves, fittings, and other obstructions are removed from an existing pipeline, a heat-fusible polymer pipeline having an initially deformed configuration less than the existing pipeline diameter is inserted into the remaining portions of the existing pipeline and reformed to substantially conform to the inside diameter of the existing pipeline, heat-fusible fittings are provided to replace removed portions of the existing pipeline and heat-fused to the polymer liner, and transition fittings provided to operably connect the replacement pipeline to those portions of the existing pipeline not within the replacement scope. The completed replacement polymer pipeline creates an operable wetted pressure boundary within the bounds of the replaced existing pipeline.
摘要翻译： 一种现有的管道更换方法，其中阀门，配件和其他障碍物从现有管道中移除，具有小于现有管道直径的初始变形构造的热熔聚合物管道被插入到现有管道的剩余部分 管道并重整成基本上符合现有管道的内径，提供热熔接头来替代现有管道的已移除部分并热熔合到聚合物衬套，以及设置用于可操作地将替换管道连接到那些 现有管道的一部分不在更换范围内。 完成的替代聚合物管道在替换的现有管道的范围内创建可操作的润湿压力边界。
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公开(公告)号：US10895332B2
公开(公告)日：2021-01-19
申请号：US16717118
申请日：2019-12-17
摘要： An apparatus and a method of extracting buried lead water supply pipe with minimal excavation and which allows removal and containment of the lead pipe. The extraction apparatus includes a frame having an upwardly extending mast, a guide pulley mounted on the frame, and a pulling apparatus. A take-up spool is mounted on the mast between the guide pulley and pulling apparatus and positioned to allow a pipe pulling cable to be wrapped therearound into a non-linear path between the guide pulley and the pulling apparatus. Extracted pipe is pulled into the non-linear path until the pipe is fully extracted from the ground. Multiple spiral loops around the take-up spool by the pulling cable may be necessary to fully contain the extracted pipe. Following extraction, the pipe may be unspooled from the take-up spool, the pulling cable removed for re-use, and the pipe may then be sent for disposal.
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公开(公告)号：US20190049041A1
公开(公告)日：2019-02-14
申请号：US16121073
申请日：2018-09-04
IPC分类号： F16L1/028
摘要： An apparatus and a method of extracting buried lead water supply pipe with minimal excavation and which allows removal and containment of the lead pipe. The extraction apparatus includes a frame having an upwardly extending mast, a guide pulley mounted on the frame, and a pulling apparatus mounted on the mast. A take-up spool is mounted on the mast between the guide pulley and pulling apparatus and positioned to force a pipe pulling cable into a non-linear path between the guide pulley and the pulling apparatus. Extracted pipe is pulled into the non-linear path until the pipe is fully extracted from the ground. Multiple spiral loops around the take-up spool by the pulling cable may be necessary to fully contain the extracted pipe. Following extraction, the pipe may be unspooled from the take-up spool, the pulling cable removed for re-use, and the pipe may then be sent for disposal.
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公开(公告)号：US20180045334A1
公开(公告)日：2018-02-15
申请号：US15675346
申请日：2017-08-11
摘要： An apparatus and a method of extracting buried lead water supply pipe with minimal excavation and which allows removal and containment of the lead pipe. The extraction apparatus includes a frame having an adjustable height mast and a plurality of guide pulleys with at least a first guide pulley mounted on the frame and at least a second guide pulley mounted on the mast. A first cable with a length closely matching the length of the pipe being removed is directed through the buried pipe and connected thereto by a leading collet and a lagging collet which are secured to opposite free ends of the lead pipe. A pulling cable preferably extends from leading collet and is directed around the first and second guide pulleys before being connected to a winch or the like. The mast height is adjusted so that the distance between the first and second guide pulleys is at least that of the length of the pipe being removed.
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