公开(公告)号：US07225836B2

公开(公告)日：2007-06-05

申请号：US11271120

申请日：2005-11-12

申请人： William Field

发明人： William Field

IPC分类号： F16L55/10

CPC分类号： F16L55/1283 ,  F16L55/132 ,  G01M3/022

摘要： A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radially expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

摘要翻译： 一种管塞装置，其构造成用于插入到管的一部分中并且适于径向膨胀以与管的内表面接合并与其形成正密封。 管塞优选地可以从非密封构造来配置，其中通过在压力释放时自动施加来自压缩流体的压力而使径向可膨胀的密封件被松弛。 通过弹簧偏压轴向压缩自动形成并保持正密封。

公开(公告)号：US20060225801A1

公开(公告)日：2006-10-12

申请号：US11271120

申请日：2005-11-12

申请人： William Field

发明人： William Field

IPC分类号： F16L55/10

CPC分类号： F16L55/1283 ,  F16L55/132 ,  G01M3/022

摘要： A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radially expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

摘要翻译： 一种管塞装置，其构造成用于插入到管的一部分中并且适于径向膨胀以与管的内表面接合并与其形成正密封。 管塞优选地可以从非密封构造来配置，其中通过在压力释放时自动施加来自压缩流体的压力而使径向可膨胀的密封件被松弛。 通过弹簧偏压轴向压缩自动形成并保持正密封。

公开(公告)号：US06966343B1

公开(公告)日：2005-11-22

申请号：US11103214

申请日：2005-04-11

申请人： William Field

发明人： William Field

IPC分类号： F16L55/10 ,  F16L55/128 ,  F16L55/132

CPC分类号： F16L55/1283 ,  F16L55/132 ,  G01M3/022

摘要： A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radailly expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

摘要翻译： 一种管塞装置，其构造成用于插入到管的一部分中并且适于径向膨胀以与管的内表面接合并与其形成正密封。 管塞优选地可由非密封构造来配置，其中通过在压力释放时自动地将来自压缩流体的压力施加到弹簧偏压的密封构造而使可膨胀的密封件松弛。 通过弹簧偏压轴向压缩自动形成并保持正密封。