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公开(公告)号：US12110746B2
公开(公告)日：2024-10-08
申请号：US18011651
申请日：2020-06-29
Inventor： Sergey Alexandrovich Rekin , Alexey Sergeevich Myslevtsev , Pavel Nikolaevich Sidorenko , Pavel Konstantinovich Ponomarenko
Abstract: A threaded joint for production of tubing includes a male element and female elements, having outer surface and inner surfaces, respectively, whose ends are configured with a trapezoidal tapered thread and with sealing surfaces, auxiliary surfaces and abutting end surfaces, which form an inner sealing assembly. The threads have characteristics described in the present disclosure. Auxiliary surfaces are provided between the sealing surfaces and the abutting end surfaces. The junction between the sealing surfaces and the auxiliary surfaces is configured in the form of a concave spherical surface on the male element and a convex spherical surface on the female element. This provides for the formation of a tight joint under high mechanical loads by virtue of improved coupling characteristics and the prevention of damage to the surfaces.
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公开(公告)号：US12018776B1
公开(公告)日：2024-06-25
申请号：US17580259
申请日：2022-01-20
Applicant: Tejas Tubular Products, Inc.
Inventor： Maximo Tejeda , Maximo Tejeda, Jr. , Dimitris Katsareas , Edgar Alejandro Zuniga , Larry Palmer
CPC classification number: F16L15/007 , F16L15/06
Abstract: A threaded connection comprising a pin connecting having dual tapered threads and a box connection having mating dual tapered threads. There is an internal torque shoulder in the box connection, the torque shoulder having a negative angled surface which mates with an angled surface on the nose of the pin connection. The pin connection has an external torque shoulder having a negative angled surface which is engaged and mates with a negative angled surface formed on the face of the box connection.
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公开(公告)号：US11905765B2
公开(公告)日：2024-02-20
申请号：US17757722
申请日：2020-09-11
Applicant: JFE STEEL CORPORATION
Inventor： Jun Takano , Takamasa Kawai , Takuya Nagahama , Seigo Goto , Masaki Yoshikawa , Tsuyoshi Yoneyama
IPC: F16L15/06 , E21B17/042 , F16L15/00
CPC classification number: E21B17/042 , F16L15/001 , F16L15/06
Abstract: To prevent fracture of a box under a tensile load without increasing the outer diameter of the box. The presently disclosed threaded joint for pipes includes a pin provided with a male thread portion at one end of a first pipe, and a box provided with a female thread portion at one end of a second pipe, where each of a plurality of thread grooves of the female thread portion has a corner portion on a load flank side and a corner portion on a stabbing flank side on a thread bottom side, a corner portion on a load flank side of a first thread groove includes a first arc portion that has a first curvature radius, and a second arc portion that has a second curvature radius, and a ratio of the second curvature radius to the first curvature radius is 3 or more.
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公开(公告)号：US11898666B1
公开(公告)日：2024-02-13
申请号：US17817864
申请日：2022-08-05
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Oladele Owoeye , Jasem Moyaibed
CPC classification number: F16L15/06 , F16L15/002
Abstract: A threaded connection includes a first tubular member having a pin end defining an external thread profile, and a second tubular member having a box end defining an internal thread profile threadably engageable with the external thread profile of the pin end. At least one of the external and internal thread profiles includes a first section that extends at a first taper angle relative to a longitudinal axis of the threaded connection, a second section extending from the first section at a second taper angle relative to the longitudinal axis, and a third section extending from the second section at a third taper angle relative to the longitudinal axis. The second taper angle is greater than each of the first and third taper angles.
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公开(公告)号：US20240003468A1
公开(公告)日：2024-01-04
申请号：US18253811
申请日：2021-08-26
Applicant: NIPPON PILLAR PACKING CO., LTD.
Inventor： Toshihide IIDA , Kenji ONISHI , Yu NOTOJI , Shohei MINAMIHARA , Hiroki TANABE
IPC: F16L15/04 , F16L15/06 , F16L19/025
CPC classification number: F16L15/04 , F16L15/06 , F16L19/025
Abstract: One of an external thread of a fitting body and an internal thread of a sleeve includes two thread ridges and the other includes two thread grooves. The two thread ridges have transverse cross sections different in shape or size. A transverse cross section of the first thread groove allows that of the first thread ridge to be fit thereinto. A transverse cross section of the second thread groove prevents that of the first thread ridge from being fit thereinto but allows that of the second thread ridge to be fit thereinto. A leading portion of the second thread ridge is tapered in width. A leading portion of the first thread groove is inversely tapered in width. A leading portion of the first thread ridge has a transverse cross section that extends beyond a transverse cross section of the leading portion of the second thread groove.
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Patent Agency Ranking
公开(公告)号：US20230383875A1
公开(公告)日：2023-11-30
申请号：US18044990
申请日：2020-09-30
Applicant: JFE STEEL CORPORATION
Inventor： Masaki YOSHIKAWA , Seigo GOTO , Seiji OZAKI , Hideo SATO
Abstract: A threaded joint wherein a relationship between shoulder angle parameters and thread taper angle parameters for a coupling and a pair of pins inserted from both ends of the coupling is defined by the following expression (1), and a tightening torque with which the threaded joint is tightened is 60% or more and 85% or less of a yield torque determined by the following expression (2):
-
1.5
°
≤
Δ
θ
-
Δ
ω
≤
2.
°
,
(
1
)
T
=
(
T
S
+
T
D
)
1
12
(
2
)
T
S
=
f
t
P
c
E
7
2
(
2
π
E
7
)
L
4
1
2
P
c
=
E
ρ
m
2
(
(
W
2
)
2
-
(
E
7
2
)
2
)
(
(
E
7
2
)
2
-
(
d
2
)
2
)
2
(
E
7
2
)
3
(
(
W
2
)
2
-
(
d
2
)
2
)
T
D
=
Y
m
A
S
(
P
2
π
+
R
t
f
s
cos
Θ
+
R
s
f
s
)
.-
公开(公告)号：US20230358259A1
公开(公告)日：2023-11-09
申请号：US18025324
申请日：2021-09-10
Applicant: Dale E Van Cor
Inventor： Dale E Van Cor
CPC classification number: F16B5/0052 , F16B5/008 , F16B7/182 , F16B33/02 , F16L15/001 , F16L15/06 , F16B2200/30
Abstract: Key threaded articles and systems that include key threads having a female lock and male key on a two-dimensional plane and in which the female lock envelops the male key when fully engaged and has a shape that creates lateral resistance to separation from the male key when the female lock fully engages the male key.
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公开(公告)号：US20230250699A1
公开(公告)日：2023-08-10
申请号：US18011651
申请日：2020-06-29
Inventor： Sergey Alexandrovich REKIN , Alexey Sergeevich MYSLEVTSEV , Pavel Nikolaevich SIDORENKO , Pavel Konstantinovich PONOMARENKO
Abstract: A threaded joint for production of tubing includes a male element and female elements, having outer surface and inner surfaces, respectively, whose ends are configured with a trapezoidal tapered thread and with sealing surfaces, auxiliary surfaces and abutting end surfaces, which form an inner sealing assembly. The threads have characteristics described in the present disclosure. Auxiliary surfaces are provided between the sealing surfaces and the abutting end surfaces. The junction between the sealing surfaces and the auxiliary surfaces is configured in the form of a concave spherical surface on the male element and a convex spherical surface on the female element. This provides for the formation of a tight joint under high mechanical loads by virtue of improved coupling characteristics and the prevention of damage to the surfaces.
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公开(公告)号：US11680451B2
公开(公告)日：2023-06-20
申请号：US17233888
申请日：2021-04-19
Applicant: OCTG Connections, LLC
Inventor： Bowman A. Urech
IPC: F16L15/00 , E21B17/08 , E21B17/042 , E21B23/00 , F16L15/06
CPC classification number: E21B17/08 , E21B17/042 , E21B23/00 , F16L15/00 , F16L15/001 , F16L15/06
Abstract: A threaded coupling comprising a first end, a second end, a first portion of the threaded coupling defining a first thread profile, a second portion of the threaded coupling defining a second thread profile different from the first thread profile, where at least two threads of the second thread profile proximate to the second end are reduced in height according to an extra machining angle.
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公开(公告)号：US20190195029A1
公开(公告)日：2019-06-27
申请号：US16227353
申请日：2018-12-20
Applicant: ULTRA PREMIUM SERVICES, L.L.C.
Inventor： ALEJANDRO JUAREZ
IPC: E21B17/042 , F16L15/00 , F16L15/06 , F16L15/08
CPC classification number: E21B17/042 , F16L15/006 , F16L15/06 , F16L15/08
Abstract: A connection includes a first tubular member having a first screw threadform defined by a first plurality of crests, roots, and flanks, where each flank separates each crest from each root. The connection also includes a second tubular member having a second screw threadform defined by a second plurality of crests, roots, and flanks, where each flank separates each crest from each root. The crests and roots are substantially axial to the tubular members and the flanks are substantially radial to the tubular members. The first tubular member and the second tubular member are configured to connect when the first threadform engages with the second threadform. Thread compound relief spaces are formed between the first plurality of crests and the second plurality of roots when the first and second tubular members connect.
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