专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20230051711A1 PIPE CONNECTION WITH SPLIT SWIVEL RING 有权
公开(公告)号：US20230051711A1
公开(公告)日：2023-02-16
申请号：US17401212
申请日：2021-08-12
申请人： Freudenberg Oil & Gas, LLC.
发明人： Hanif NAZARI , Finn FREDRIKSEN
IPC分类号： F16L23/032 , F16L23/024
摘要： A pipe connection swivel joint assembly includes a pipe member having an end flange with a conical proximal surface. A split ring assembly includes a pair of swivel ring halves each having a conical inner surface disposed against the conical proximal surface of the pipe member. The pair of swivel ring halves further include a plurality of mounting holes extending axially through the pair of swivel ring halves and a plurality of ring fastening holes. An outer ring is connected to the pair of swivel ring halves by a plurality of split ring fasteners engaged with the plurality of ring fastening holes. The outer ring supports a pair of distance plates that are disposed between opposing ends of the pair of swivel ring halves.

2. 发明授权

US09938793B2 Spherical blow out preventer annular seal 有权
公开(公告)号：US09938793B2
公开(公告)日：2018-04-10
申请号：US14950330
申请日：2015-11-24
申请人： Freudenberg Oil & Gas, LLC
发明人： Mehdi Hashemian , Andreas Hagen , Christopher Neumann , Bernd Altmueller
IPC分类号： E21B33/06 , E21B33/08
CPC分类号： E21B33/06 , E21B33/085
摘要： A spherical blow out preventer annular seal is provided for sealing around a pipe. The blow out preventer includes a housing adapted to be disposed around the pipe and having a generally spherical interior surface. A seal body includes a plurality of metallic inserts arranged side by side in an annular pattern and each includes a base portion and a wedge shaped extension having a partially spherical outer surface terminating at a tip end. An annular elastomeric body is over-molded on the base portions of the plurality of metallic inserts with the partially spherical outer surface of each of the wedge shaped extensions being supported in engagement with the interior spherical surface of the housing. A piston is engaged with the seal body to press the metallic inserts upward and inward against the generally spherical interior surface of the housing so as to come together tangentially around the pipe.

3. 发明授权

US11635142B2 Dual barrier seal 有权
公开(公告)号：US11635142B2
公开(公告)日：2023-04-25
申请号：US16683805
申请日：2019-11-14
申请人： Freudenberg Oil & Gas, LLC
发明人： Nagarjuna Jillella , Ian Smitham , Patrick Rawls , Keith Anderson , James Smith , Sebastian Ospina
IPC分类号： F16J15/06 , F16L23/20 , F16L17/08 , F16J15/34 , F16J15/00
摘要： An annular dual barrier seal includes a pair of axially extending inner seal lips and a pair of axially extending outer seal lips, the pair of inner seal lips are connected to the pair of outer seal lips by a radially outwardly extending web portion. The pair of inner seal lips extend axially by a first dimension and the pair of outer seal lips extend axially by a second dimension which is greater than the first dimension. The pair of inner seal lips have a sealing surface that is one of partially toroidal and partially elliptical and that engage the radially inwardly facing first sealing surface and the pair of outer seal lips have a sealing surface that is one of partially toroidal, partially elliptical and conical.

4. 发明申请

US20170328472A1 INTERLOCKING ANNULAR PRESSURE SEAL ASSEMBLY 审中-公开
公开(公告)号：US20170328472A1
公开(公告)日：2017-11-16
申请号：US15153089
申请日：2016-05-12
申请人： Freudenberg Oil & Gas, LLC.
发明人： Michael LoGIUDICE , Brian A. WALLACE
IPC分类号： F16J15/02
CPC分类号： F16J15/025 , E21B33/04 , E21B33/10 , E21B2033/005 , F16J15/3236
摘要： A seal assembly for sealing between an inner surface of a bore and an outer surface of a mandrel includes at least one annular seal including a channel disposed in an axial end thereof with a locking shoulder facing axially away from an opening end of the channel. The annular seal has an innermost diameter that is smaller than an outer diameter of the mandrel and has an outermost diameter that is larger than an inner diameter of the bore. An annular locking ring includes a locking member at a first axial end that is received in the channel of the at least one annular seal and having a ledge portion engaged with the locking shoulder of the annular seal. The ledge portion includes at least one slot extending axially there through.

5. 发明申请

US20210148468A1 DUAL BARRIER SEAL 有权
公开(公告)号：US20210148468A1
公开(公告)日：2021-05-20
申请号：US16683805
申请日：2019-11-14
申请人： Freudenberg Oil & Gas, LLC
发明人： Nagarjuna JILLELLA , Ian SMITHAM , Patrick RAWLS , Keith ANDERSON , James SMITH , Sebastian OSPINA
IPC分类号： F16J15/34
摘要： An annular dual barrier seal includes a pair of axially extending inner seal lips and a pair of axially extending outer seal lips, the pair of inner seal lips are connected to the pair of outer seal lips by a radially outwardly extending web portion. The pair of inner seal lips extend axially by a first dimension and the pair of outer seal lips extend axially by a second dimension which is greater than the first dimension. The pair of inner seal lips have a sealing surface that is one of partially toroidal and partially elliptical and that engage the radially inwardly facing first sealing surface and the pair of outer seal lips have a sealing surface that is one of partially toroidal, partially elliptical and conical.

6. 发明授权

US10948113B1 Longitudinal expansion joint for piping system 有权
公开(公告)号：US10948113B1
公开(公告)日：2021-03-16
申请号：US16701134
申请日：2019-12-02
申请人： Freudenberg Oil & Gas, LLC
发明人： David Robertson
IPC分类号： F16L27/12
摘要： A longitudinal expansion joint for piping systems, includes a first casing member and a second casing member telescopically engaged with a second end of the first casing member, the second casing member having a first end adapted to connect to a second pipe and having a second end with a flange portion having a threaded outer surface. A longitudinal adjustment mechanism for longitudinally adjusting a position of the second casing member relative to the first casing member. A locking sleeve for locking a longitudinal position of the second casing member relative to the first casing member. A sealing system including a seal unit disposed between the first casing member, and the second casing member and a push plate disposed against the seal unit. A seal energizing system pushes against the push plate to energize the seal unit to seal between the first casing member and the second casing member.

7. 发明授权

US10627028B2 Misalignment flange for pipeline installations 有权
公开(公告)号：US10627028B2
公开(公告)日：2020-04-21
申请号：US15978293
申请日：2018-05-14
申请人： Freudenberg Oil & Gas, LLC
发明人： John Stobbart , Michael Sheehan
IPC分类号： F16L27/053 , F16L27/06
CPC分类号： F16L27/053 , F16L27/06
摘要： A pipeline misalignment flange includes a socket member having a first smaller spherical internal surface, the socket member having a first face surrounding the first substantially spherical internal surface, the first face having a recessed channel. A retainer member includes a second larger spherical internal surface, the socket member and the retainer member being fastened together. A ball member includes a first smaller spherical external surface for engaging the socket member and a second larger spherical external surface for engaging the retainer member. The second larger spherical external surface includes an axially protruding portion with an undercut, the ball member being pivotable relative to the socket member such that the axially protruding portion of the second larger spherical external surface is received in the recessed channel.

8. 发明授权

US09777874B2 Rotary coupling 有权
公开(公告)号：US09777874B2
公开(公告)日：2017-10-03
申请号：US14717104
申请日：2015-05-20
申请人： FREUDENBERG OIL & GAS, LLC
发明人： Steven Williams , Anton Marincic , Zvonko Milanovic
IPC分类号： F16L21/04 , F16L27/08
CPC分类号： F16L27/0861 , F16L21/04 , F16L27/0816
摘要： A rotary coupling includes an annular outer section which has a female end, a threaded portion, and a Z-ring relief. A connector pipe has a connection end, a shoulder, and a seal end. A Z-ring is housed within the Z-ring relief and packing seals are housed within a packing chamber; and a retainer ring is threadably received into the threaded portion of the outer section. The retainer ring receives compression screws there-through, wherein in the engaged position the compression screws urge a packing end of the Z-ring longitudinally against packing seals thereby compressing the packing seals into the packing chamber creating a seal. The compression screws are movable between an engaged and disengaged position in order that in the disengaged position the compression pressure against the Z-ring and packing seals is released by backing off the compression screws without disassembly of the rotary coupling.

9. 发明申请

US20170122055A1 UNITIZED LIP SEAL FOR WASH PIPE STUFFING BOX SEALING SYSTEM 审中-公开
公开(公告)号：US20170122055A1
公开(公告)日：2017-05-04
申请号：US14932206
申请日：2015-11-04
申请人： Freudenberg Oil & Gas, LLC
发明人： Phillip D. EMBURY
IPC分类号： E21B33/03 , F16J15/3264 , F16J15/3232 , E21B3/00 , F16J15/18
CPC分类号： E21B33/03 , E21B3/00 , E21B33/085 , E21B2033/005 , F16J15/18 , F16J15/3232 , F16J15/3264 , F16J15/3268 , F16J15/3284
摘要： A wash pipe stuffing box sealing assembly includes a wash pipe stuffing box with a mandrel sleeve disposed in a bore there through. A plurality of stuffing box adapter rings are disposed in the wash pipe stuffing box and surrounding the mandrel sleeve. An annular seal ring is disposed between a pair of the adapter rings, and includes an annular seal body made of a first material including a radially outer portion and an annular radially inner portion extending radially inward from the outer portion. The inner portion includes an inner surface with an annular contact lip portion and an annular recess portion disposed adjacent to the annular contact lip portion. A secondary sealing ring made of a PTFE (Polytetrafluoroethylene) is disposed in the annular recess portion of the inner portion of the annular seal body and creates additional sealing action from a thermally stable, low friction coefficient material.

10. 发明授权

US09284813B2 Swellable energizers for oil and gas wells 有权
标题翻译：石油和天然气井的膨胀增压器
公开(公告)号：US09284813B2
公开(公告)日：2016-03-15
申请号：US13914037
申请日：2013-06-10
申请人： FREUDENBERG OIL & GAS, LLC
发明人： Santiago Galvez Porta
IPC分类号： E21B33/12 , E21B33/04 , E21B33/00
CPC分类号： E21B33/1208 , E21B33/04 , E21B2033/005
摘要： A seal stack including a sealing element including an annular seal ring having a diameter and an axis defined therethrough perpendicular to the diameter, a groove defined in the seal ring, wherein the groove has an opening at a first end of the seal ring, and a swellable energizer disposed in the groove, wherein the swellable energizer swells upon exposure to a solvent causing the seal ring to expand. The seal stack also includes a first annular back-up and a second annular back-up provided at opposing ends of the sealing element, wherein said first back-up includes an interior surface that receives a second end of the sealing element.
摘要翻译：一种密封堆叠，包括密封元件，所述密封元件包括环形密封环，所述环形密封环具有垂直于所述直径定义的直径和轴线，所述密封环限定在所述密封环中，所述凹槽在所述密封环的第一端具有开口，可膨胀的增能器设置在槽中，其中可膨胀的增能器暴露于溶剂时膨胀，导致密封环膨胀。密封堆叠还包括设置在密封元件的相对端处的第一环形支撑件和第二环形支撑件，其中所述第一支撑件包括容纳密封元件的第二端的内表面。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式