公开(公告)号：US5526881A

公开(公告)日：1996-06-18

申请号：US268628

申请日：1994-06-30

Applicant: John R. Martin ,  Martin B. Robertson, Jr.

Inventor： John R. Martin ,  Martin B. Robertson, Jr.

IPC: B21C37/15 ,  B21C37/28 ,  E21B17/20 ,  E21B43/08 ,  E21B43/11 ,  E21B43/10

CPC classification number: E21B43/086 ,  B21C37/15 ,  B21C37/28 ,  E21B17/20 ,  E21B43/11

Abstract: Preperforated tubing is produced by forming a perforation in flat strip of raw material, forming a hollow, cylindrical tube from the flat strip, and placing a removable plug into the perforation, so as to form a fluid-tight seal. A sealing element may be placed into the perforation. The perforation may comprise a hole, into which first and second countersinks may be formed. The sealing element may be placed into the first countersink, and the plug may be placed through the countersinks and the hole, such that the plug's body fills the hole and the plug's head fits within the second countersink.

Abstract translation: 预穿孔管是通过在原料的扁平条中形成穿孔而形成的，从扁平条形成中空的圆柱形管，并将可移除的塞子放入穿孔中，以便形成流体密封。 密封元件可以放置在穿孔中。 穿孔可以包括孔，可以形成第一和第二埋头孔。 密封元件可以放置在第一埋头孔中，并且插头可以通过埋头孔和孔放置，使得插头的主体填充孔并且插头的头部装配在第二埋头孔内。

公开(公告)号：US5622211A

公开(公告)日：1997-04-22

申请号：US479153

申请日：1995-06-07

Applicant: John R. Martin ,  Martin B. Robertson, Jr.

Inventor： John R. Martin ,  Martin B. Robertson, Jr.

IPC: B21C37/15 ,  B21C37/28 ,  E21B17/20 ,  E21B43/08 ,  E21B43/11 ,  E21B43/10

CPC classification number: E21B43/086 ,  B21C37/15 ,  B21C37/28 ,  E21B17/20 ,  E21B43/11

Abstract: Preperforated tubing is produced by forming a perforation in flat strip of raw material, forming a hollow, cylindrical tube from the flat strip, and placing a removable plug into the perforation, so as to form a fluid-tight seal. A sealing element may be placed into the perforation. The perforation may comprise a hole, into which first and second countersinks may be formed. The sealing element may be placed into the first countersink, and the plug may be placed through the countersinks and the hole, such that the plug's body fills the hole and the plug's head fits within the second countersink.

Abstract translation: 预穿孔管是通过在原料的扁平条中形成穿孔而形成的，从扁平条形成中空的圆柱形管，并将可移除的塞子放入穿孔中，以便形成流体密封。 密封元件可以放置在穿孔中。 穿孔可以包括孔，可以形成第一和第二埋头孔。 密封元件可以放置在第一埋头孔中，并且插头可以通过埋头孔和孔放置，使得插头的主体填充孔并且插头的头部装配在第二埋头孔内。