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1. 发明授权

US08038179B2 Threaded joint for steel pipes 有权
标题翻译：钢管螺纹接头
公开(公告)号：US08038179B2
公开(公告)日：2011-10-18
申请号：US12748562
申请日：2010-03-29
申请人： Takahiro Takano , Shigeo Nagasaku , Masaaki Sugino , Takahiro Hamamoto , Suguru Yamaguchi
发明人： Takahiro Takano , Shigeo Nagasaku , Masaaki Sugino , Takahiro Hamamoto , Suguru Yamaguchi
IPC分类号： F16L15/00
CPC分类号： F16L15/00 , E21B17/042 , F16L15/004
摘要： A threaded joint for steel pipes comprising a pin 1 having a tapered male thread 11, a tapered sealing surface 13, and an end shoulder surface 14 and a box 2 having correspondingly a tapered female thread 21, a tapered sealing surface 23, and a shoulder surface 24 which is capable of easy tightening and has improved air tightness by the sealing surfaces is arranged such that the pin and the box each have a noncontacting region B where the peripheral surfaces of the pin and the box do not contact each other between the sealing surfaces 13, 23 and the shoulder surfaces 14 and 24. At least a portion of the noncontacting region of the pin adjoining the to end of the pin is a tapered surface portion 18 having substantially the same angle of slope as the tapered sealing surface 13, and the noncontacting region of the box is a substantially cylindrical surface.
摘要翻译：一种用于钢管的螺纹接头，包括具有锥形外螺纹11的销1，锥形密封表面13和端部肩部表面14以及具有锥形阴螺纹21的锥形密封表面23和肩部能够容易地紧固并且通过密封表面改善的气密性的表面24被布置成使得销和箱各自具有非接触区域B，其中销和箱的周面在密封件之间不彼此接触表面13,23和肩部表面14和24.与销的端部相邻的销的非接触区域的至少一部分是锥形表面部分18，其具有与锥形密封表面13基本相同的倾斜角度，并且盒的非接触区域是基本上圆柱形的表面。

2. 发明申请

US20100270793A1 THREADED JOINT FOR STEEL PIPES 有权
标题翻译：螺纹管接头钢管
公开(公告)号：US20100270793A1
公开(公告)日：2010-10-28
申请号：US12748562
申请日：2010-03-29
申请人： Takahiro Takano , Shigeo Nagasaku , Masaaki Sugino , Takahiro Hamamoto , Suguru Yamaguchi
发明人： Takahiro Takano , Shigeo Nagasaku , Masaaki Sugino , Takahiro Hamamoto , Suguru Yamaguchi
IPC分类号： F16L25/00
CPC分类号： F16L15/00 , E21B17/042 , F16L15/004
摘要： A threaded joint for steel pipes comprising a pin 1 having a tapered male thread 11, a tapered sealing surface 13, and an end shoulder surface 14 and a box 2 having correspondingly a tapered female thread 21, a tapered sealing surface 23, and a shoulder surface 24 which is capable of easy tightening and has improved air tightness by the sealing surfaces is arranged such that the pin and the box each have a noncontacting region B where the peripheral surfaces of the pin and the box do not contact each other between the sealing surfaces 13, 23 and the shoulder surfaces 14 and 24. At least a portion of the noncontacting region of the pin adjoining the to end of the pin is a tapered surface portion 18 having substantially the same angle of slope as the tapered sealing surface 13, and the noncontacting region of the box is a substantially cylindrical surface.
摘要翻译：一种用于钢管的螺纹接头，包括具有锥形外螺纹11的销1，锥形密封表面13和端部肩部表面14以及具有锥形阴螺纹21的锥形密封表面23和肩部能够容易地紧固并且通过密封表面改善的气密性的表面24被布置成使得销和箱各自具有非接触区域B，其中销和箱的周面在密封件之间不彼此接触表面13,23和肩部表面14和24.与销的端部相邻的销的非接触区域的至少一部分是锥形表面部分18，其具有与锥形密封表面13基本相同的倾斜角度，并且盒的非接触区域是基本上圆柱形的表面。

3. 发明申请

US20100078936A1 THREADED JOINT FOR STEEL PIPES 有权
标题翻译：螺纹管接头钢管
公开(公告)号：US20100078936A1
公开(公告)日：2010-04-01
申请号：US12571642
申请日：2009-10-01
申请人： Keiichi Nakamura , Takahiro Hamamoto , Masaaki Sugino , Suguru Yamaguchi
发明人： Keiichi Nakamura , Takahiro Hamamoto , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L15/04 , F16L25/00
CPC分类号： F16L15/004 , E21B17/042 , F16L15/06
摘要： A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of the threads in a complete thread portion of one of the pin and a box has a two-step stabbing shape having a chamfer. The two-step stabbing shape has a stabbing flank angle α of 5-45° and a chamfer angle β of 20-60°. The ratio h/H of the chamfer height h to the thread height H of the pin is 0.25-0.50, or the ratio of the cross-sectional area of the chamfered portion to the overall cross-sectional area of the stabbing flank is made at least a value corresponding to a chamfer height ratio h/H of 0.25 and at most a value corresponding to a chamfer height ratio of 0.50.
摘要翻译：由具有阳螺纹的销和具有内螺纹的箱构成的钢管用螺纹接头在销的插入容易性和螺纹部的耐磨损性方面得到改善。销和盒中的一个的完整螺纹部分中的螺纹的刺入侧面具有具有倒角的两步骤刺入形状。两步刺刺形状具有5-45°的刺刀侧角α和倒角角度＆bgr; 20-60°。倒角高度h与销钉螺纹高度H的比值h / H为0.25-0.50，或者倒角部分的横截面积与刺刀侧面的整个横截面积的比例为至少对应于斜面高度比h / H为0.25的值，并且最多为对应于倒角高度比为0.50的值。

4. 发明授权

US07900975B2 Threaded joint for steel pipes 有权
标题翻译：钢管螺纹接头
公开(公告)号：US07900975B2
公开(公告)日：2011-03-08
申请号：US12571642
申请日：2009-10-01
申请人： Keiichi Nakamura , Takahiro Hamamoto , Masaaki Sugino , Suguru Yamaguchi
发明人： Keiichi Nakamura , Takahiro Hamamoto , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L35/00
CPC分类号： F16L15/004 , E21B17/042 , F16L15/06
摘要： A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of the threads in a complete thread portion of one of the pin and a box has a two-step stabbing shape having a chamfer. The two-step stabbing shape has a stabbing flank angle α of 5-45° and a chamfer angle β of 20-60°. The ratio h/H of the chamfer height h to the thread height H of the pin is 0.25-0.50, or the ratio of the cross-sectional area of the chamfered portion to the overall cross-sectional area of the stabbing flank is made at least a value corresponding to a chamfer height ratio h/H of 0.25 and at most a value corresponding to a chamfer height ratio of 0.50.
摘要翻译：由具有阳螺纹的销和具有内螺纹的箱构成的钢管用螺纹接头在销的插入容易性和螺纹部的耐磨损性方面得到改善。销和盒中的一个的完整螺纹部分中的螺纹的刺入侧面具有具有倒角的两步骤刺入形状。两步刺刺形状具有5-45°的刺刀侧角α和倒角角度＆bgr; 20-60°。倒角高度h与销钉螺纹高度H的比值h / H为0.25-0.50，或者倒角部分的横截面积与刺刀侧面的整个横截面积的比例为至少对应于斜面高度比h / H为0.25的值，并且最多为对应于倒角高度比为0.50的值。

5. 发明申请

US20110241340A1 THREADED JOINT FOR STEEL PIPES 有权
标题翻译：螺纹管接头钢管
公开(公告)号：US20110241340A1
公开(公告)日：2011-10-06
申请号：US13088460
申请日：2011-04-18
申请人： Takashi OKADA , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
发明人： Takashi OKADA , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L25/00
CPC分类号： F16L15/004 , E21B17/042
摘要： In a threaded joint for steel pipes comprising a pin (1) and a box (2), each having a threaded portion (11 or 21), a sealing surface (13 or 23), and a shoulder surface (14, 15 or 24, 25), the sealing surface (13) of the pin (1) is formed by a tapered surface, and the sealing surface (23) of the box (2) is formed by a first curved surface portion with a large radius of curvature in the range of 15-120 mm, a tapered surface portion, and a second curved surface portion with a large radius of curvature again in the range of 15-120 mm.
摘要翻译：在用于包括销（1）和箱体（2）的钢管的螺纹接头中，每个具有螺纹部分（11或21），密封表面（13或23）和肩表面（14,15或24），25），所述销（1）的密封面（13）由锥面形成，所述箱体（2）的密封面（23）由曲率半径大的第一曲面部形成在15-120mm的范围内，锥形表面部分和具有大的曲率半径的第二曲面部分再次在15-120mm的范围内。

6. 发明授权

US09719617B2 Threaded joint for steel pipes 有权
公开(公告)号：US09719617B2
公开(公告)日：2017-08-01
申请号：US13088460
申请日：2011-04-18
申请人： Takashi Okada , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
发明人： Takashi Okada , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L15/00 , E21B17/042
CPC分类号： F16L15/004 , E21B17/042
摘要： In a threaded joint for steel pipes comprising a pin (1) and a box (2), each having a threaded portion (11 or 21), a sealing surface (13 or 23), and a shoulder surface (14, 15 or 24, 25), the sealing surface (13) of the pin (1) is formed by a tapered surface, and the sealing surface (23) of the box (2) is formed by a first curved surface portion with a large radius of curvature in the range of 15-120 mm, a tapered surface portion, and a second curved surface portion with a large radius of curvature again in the range of 15-120 mm.

7. 发明授权

US09605781B2 Threaded connection comprising at least one threaded element with an end lip for a metal tube 有权
公开(公告)号：US09605781B2
公开(公告)日：2017-03-28
申请号：US12741054
申请日：2008-11-03
申请人： Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
发明人： Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L15/00 , E21B17/042
CPC分类号： F16L15/004 , E21B17/042 , Y10T29/49826 , Y10T82/10 , Y10T408/03 , Y10T409/303752
摘要： A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the lip and the corresponding surface of the other threaded portion in communication with the interior of the connection.

8. 发明申请

US20110025051A1 THREADED JOINT FOR STEEL PIPES 有权
标题翻译：螺纹管接头钢管
公开(公告)号：US20110025051A1
公开(公告)日：2011-02-03
申请号：US12774909
申请日：2010-05-06
申请人： Suguru Yamaguchi , Keiichi Nakamura , Masaaki Sugino , Michihiko Iwamoto , Gabriel Briquet , Claire Patureau , Daly Daly , Bertrand Maillon , Sylvain Beigneux
发明人： Suguru Yamaguchi , Keiichi Nakamura , Masaaki Sugino , Michihiko Iwamoto , Gabriel Briquet , Claire Patureau , Daly Daly , Bertrand Maillon , Sylvain Beigneux
IPC分类号： F16L25/04
CPC分类号： F16L15/004 , E21B17/042 , E21B17/08 , F16L15/06
摘要： A threaded joint for steel pipes comprising a pin (1) and a box (2). The pin has a male thread (11) and a lip (12) which comprises (i) a sealing surface (13) and (ii) a nose portion (16) provided with a shoulder surface. The box has a female thread (21), a sealing surface (23) and a shoulder surface. The shoulder surface of the pin comprises two distinct adjacent surfaces, main shoulder (14) in the inner side and sub shoulder (15) in the outer side. Correspondingly, the shoulder surface of the box comprises two distinct adjacent surfaces, main shoulder (24) in the inner side and sub shoulder (25) in the outer side. The main shoulder surfaces of the pin and box are disposed such as to prevent a radially inward deformation of the lip end, and the sub shoulder surfaces of pin and box are disposed such as to limit a radially outward deformation of the lip end. The main shoulder of the pin has a greater radial dimension than said sub shoulder of the pin, and at least the main shoulder surface of the pin is in axial abutment with at least the corresponding main shoulder surface of the box.
摘要翻译：一种用于钢管的螺纹接头，包括销（1）和箱（2）。该销有一个外螺纹（11）和一个唇缘（12），它包括（i）密封表面（13）和（ii）设置有一个肩部表面的鼻部分（16）。箱体具有阴螺纹（21），密封面（23）和肩部表面。销的肩部表面包括两个不同的相邻表面，内侧的主肩部（14）和外侧的副肩部（15）。相应地，箱的肩部表面包括两个不同的相邻表面，内侧的主肩部（24）和外侧的副肩部（25）。销和箱的主肩表面设置成防止唇端的径向向内变形，并且销和箱的副肩表面被设置为限制唇端的径向向外变形。销的主肩部具有比销的所述副肩部更大的径向尺寸，并且销的至少主肩表面至少与盒的相应主肩表面轴向邻接。

9. 发明授权

US09568125B2 Threaded joint for steel pipes 有权
标题翻译：钢管螺纹接头
公开(公告)号：US09568125B2
公开(公告)日：2017-02-14
申请号：US12774909
申请日：2010-05-06
申请人： Suguru Yamaguchi , Keiichi Nakamura , Masaaki Sugino , Michihiko Iwamoto , Gabriel Briquet , Claire Patureau , Daly Daly , Bertrand Maillon , Sylvain Beigneux
发明人： Suguru Yamaguchi , Keiichi Nakamura , Masaaki Sugino , Michihiko Iwamoto , Gabriel Briquet , Claire Patureau , Daly Daly , Bertrand Maillon , Sylvain Beigneux
IPC分类号： F16L15/00 , F16L15/06 , E21B17/042 , E21B17/08
CPC分类号： F16L15/004 , E21B17/042 , E21B17/08 , F16L15/06
摘要： A threaded joint for steel pipes comprising a pin (1) and a box (2). The pin has a male thread (11) and a lip (12) which comprises (i) a sealing surface (13) and (ii) a nose portion (16) provided with a shoulder surface. The box has a female thread (21), a sealing surface (23) and a shoulder surface. The shoulder surface of the pin comprises two distinct adjacent surfaces, main shoulder (14) in the inner side and sub shoulder (15) in the outer side. Correspondingly, the shoulder surface of the box comprises two distinct adjacent surfaces, main shoulder (24) in the inner side and sub shoulder (25) in the outer side. The main shoulder surfaces of the pin and box are disposed such as to prevent a radially inward deformation of the lip end, and the sub shoulder surfaces of pin and box are disposed such as to limit a radially outward deformation of the lip end. The main shoulder of the pin has a greater radial dimension than said sub shoulder of the pin, and at least the main shoulder surface of the pin is in axial abutment with at least the corresponding main shoulder surface of the box.
摘要翻译：一种用于钢管的螺纹接头，包括销（1）和箱（2）。该销有一个外螺纹（11）和一个唇缘（12），它包括（i）密封表面（13）和（ii）设置有一个肩部表面的鼻部分（16）。箱体具有阴螺纹（21），密封面（23）和肩部表面。销的肩部表面包括两个不同的相邻表面，内侧的主肩部（14）和外侧的副肩部（15）。相应地，箱的肩部表面包括两个不同的相邻表面，内侧的主肩部（24）和外侧的副肩部（25）。销和箱的主肩表面设置成防止唇端的径向向内变形，并且销和箱的副肩表面被设置为限制唇端的径向向外变形。销的主肩部具有比销的所述副肩部更大的径向尺寸，并且销的至少主肩表面至少与盒的相应主肩表面轴向邻接。

10. 发明申请

US20100301603A1 THREADED CONNECTION COMPRISING AT LEAST ONE THREADED ELEMENT WITH AN END LIP FOR A METAL TUBE 有权
标题翻译：至少包含一个螺纹元件的螺纹连接，用于金属管的末端
公开(公告)号：US20100301603A1
公开(公告)日：2010-12-02
申请号：US12741054
申请日：2008-11-03
申请人： Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
发明人： Sylvain Beigneux , Daly Daly , Bertrand Maillon , Claire Patureau , Eric Verger , Michihiko Iwamoto , Keiichi Nakamura , Masaaki Sugino , Suguru Yamaguchi
IPC分类号： F16L15/04 , B23B35/00 , B23C3/00 , B21B1/00 , B23B1/00 , C21D7/06 , B24C1/00 , B23P11/00 , B05D1/00
CPC分类号： F16L15/004 , E21B17/042 , Y10T29/49826 , Y10T82/10 , Y10T408/03 , Y10T409/303752
摘要： A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the lip and the corresponding surface of the other threaded portion in communication with the interior of the connection.
摘要翻译：螺纹管状连接件包括在第一管状部件端处的阴螺纹部分和在第二管状部件端部处的阳螺纹部分，阴螺纹部分包括阴螺纹，在其内周表面上的至少一个阴密封表面，至少一个母轴向邻接表面，所述阳螺纹部分包括阳螺纹，在其外周表面上的至少一个阳密封表面，至少一个轴向邻接表面和设置在所述密封表面和轴向邻接表面之间的唇缘，所述螺纹部分远离所述螺纹的自由端，所述阳螺纹构成所述内螺纹，使得至少一个阳轴向邻接表面与至少一个阴轴向邻接表面接触，至少一个阳密封表面为与至少一个对应的阴密封表面干涉接触，密封表面和轴向邻接部分之间的唇缘部分所述表面径向远离所述另一螺纹部分的对应表面，至少一个泄漏通道设置在所述螺纹部分中的一个中，以将形成在所述唇缘和所述另一螺纹部分的相应表面之间的所述腔室与所述另一螺纹部分的内部连通连接。

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