公开(公告)号：EP1325259B1

公开(公告)日：2006-08-02

申请号：EP01964507.6

申请日：2001-08-30

申请人： TDW DELAWARE, INC.

发明人： WILSON, Buddy, A. ,  BILLINGTON, Randy, B. ,  BINGHAM, Bruce, W. ,  GARRISON, Tony, R. ,  MORGAN, Mark, A.

IPC分类号： F16L55/00

CPC分类号： F16J13/08 ,  F16J13/24 ,  F16L55/1125

摘要： A removable closure member for closing a cylindrical opening having a circumferential slot therein, the closure member formed of a plug body having a top surface and an external cylindrical surface, a first and a second leas each having an outer substantially semi-cylindrical edge, a first end portion of each leaf being pivotally secured to the plug body permitting each leaf to be pivoted between a retracted position and an expanded position in which the outer edge of each leaf is receivable within the circumferential slot in the cylindrical opening and a plug holder removably attachable to the plug body top surface and having a rotatable portion for pivoting the leaves between their retracted and expanded positions.

公开(公告)号：EP2286136B1

公开(公告)日：2015-07-22

申请号：EP09763255.8

申请日：2009-05-28

申请人： TDW DELAWARE, INC.

发明人： WILSON, Buddy, A. ,  BILLINGTON, Randy, B. ,  BINGHAM, Bruce, W. ,  GARRISON, Tony, R. ,  MORGAN, Mark, A.

IPC分类号： F16L55/10 ,  F16L41/04

CPC分类号： F16L41/04 ,  Y10T137/0402 ,  Y10T137/0458 ,  Y10T137/612

公开(公告)号：EP2286136A1

公开(公告)日：2011-02-23

申请号：EP09763255.8

申请日：2009-05-28

申请人： TDW DELAWARE, INC.

发明人： WILSON, Buddy, A. ,  BILLINGTON, Randy, B. ,  BINGHAM, Bruce, W. ,  GARRISON, Tony, R. ,  MORGAN, Mark, A.

IPC分类号： F16L55/10

CPC分类号： F16L41/04 ,  Y10T137/0402 ,  Y10T137/0458 ,  Y10T137/612

摘要： A method according to this invention employs a set of valves, a series of pressure checks, and a physical stop for verifying the closing of a locking system of a cylindrical passageway. The method may also employ an equalization piping. The valves isolate a tapping machine, a pipeline, and the equalization piping from one another so that product cannot flow from one to the other. The valves are then opened as a series of pressure checks are performed. A completion plug is then lowered into the passageway until the plug comes to rest within the passageway and is oriented so that a locking ring of the plug is in a filly expanded position. The expanded position is then confirmed by raising the plug until its upward travel is restricted. The plug is then released and pressure above the plug is reduced to 0 psi gauge.

公开(公告)号：EP1325259A2

公开(公告)日：2003-07-09

申请号：EP01964507.6

申请日：2001-08-30

申请人： TDW Delaware, Inc.

发明人： WILSON, Buddy, A. ,  BILLINGTON, Randy, B. ,  BINGHAM, Bruce, W. ,  GARRISON, Tony, R. ,  MORGAN, Mark, A.

IPC分类号： F16L55/00

CPC分类号： F16J13/08 ,  F16J13/24 ,  F16L55/1125

摘要： A removable closure member for closing a cylindrical opening having a circumferential slot therein, the closure member formed of a plug body having a top surface (90) and an external cylindrical surface (80), a first and a second leaf (192, 194) each having an outer substantially semi-cylindrical edge, a first end portion of each leaf (192, 194) being pivotally secured to the plug body permitting each leaf to be pivoted between a retracted position and an expanded position in which the outer edge of each leaf is receivable within the circumferential slot (76) in the cylindrical opening and a plug holder removably attachable to the plug body top surface and having a rotatable portion for pivoting the leaves between their retracted and expanded positions.