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. 发明公开

US20240344608A1 PROCESS CHAMBER VACUUM SEAL LEAKAGE REDUCTION 审中-公开
公开(公告)号：US20240344608A1
公开(公告)日：2024-10-17
申请号：US18209762
申请日：2023-06-14
申请人： Applied Materials, Inc.
发明人： Shashidhara Patel H B , Nagaraj Naik , Muhannad Mustafa , Bin Cao , Sanjeev Baluja , Aditya Chuttar , Jae Hwa Park
IPC分类号： F16J15/00 , F16J15/02
CPC分类号： F16J15/002 , F16J15/024
摘要： Sealing bodies comprising a first body having a top surface and a bottom surface defining a thickness thereof. An inlet conduit and an outlet conduit are in fluid communication with one or more of the top surface, the bottom surface, or a top channel formed in the top surface or a bottom channel formed in the bottom surface.

2. 发明公开

US20240301761A1 WASHPIPE ASSEMBLY 审中-公开
公开(公告)号：US20240301761A1
公开(公告)日：2024-09-12
申请号：US18599500
申请日：2024-03-08
申请人： FORUM US, INC.
发明人： Stephen PATTERSON , Sohaib ANWER , Blake E. SMITH
IPC分类号： E21B33/08 , F16J15/00 , F16J15/18 , F16J15/34 , F16J15/447
CPC分类号： E21B33/085 , F16J15/002 , F16J15/18 , F16J15/3448 , F16J15/447
摘要： A washpipe assembly is configured to form a fluid tight seal between a rotating and non-rotating component. The washpipe assembly has a washpipe, a static seal assembly coupled to one end of the washpipe, and a dynamic seal assembly coupled to an opposite end of the washpipe. The dynamic seal has a seal disposed within an outer housing. The seal is contained within a seal cavity formed by the outer housing and an outer diameter of the washpipe. The dynamic seal assembly is rotatable relative to the washpipe while the seal maintains sealing contact with the outer diameter of the washpipe.

3. 发明授权

US12055222B2 Non-collapsible flexible sealing membrane and seal assembly for rotary shaft equipment 有权
公开(公告)号：US12055222B2
公开(公告)日：2024-08-06
申请号：US17956043
申请日：2022-09-29
申请人： John Crane Inc.
发明人： Darin Merrill Rasmussen , Tom Steigerwald , Syed Niamathullah , Dan Kozlowski , James R. Wasser , Michael G. Kalodimos
IPC分类号： F16J15/36 , F16J15/34 , F01D1/00 , F16J15/00 , F16J15/32 , F16J15/38
CPC分类号： F16J15/363 , F16J15/348 , F01D1/00 , F16J15/002 , F16J15/32 , F16J15/38
摘要： A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.

4. 发明公开

US20240159229A1 SEALING DEVICE FOR A PISTON ROD OF A RECIPROCATING COMPRESSOR 审中-公开
公开(公告)号：US20240159229A1
公开(公告)日：2024-05-16
申请号：US17988364
申请日：2022-11-16
申请人： Hoerbiger Wien GmbH
发明人： Martin Lagler , Andreas Kaufmann , Guido Pratelli
IPC分类号： F04B19/22 , F04B49/00 , F16J15/00 , F16J15/20
CPC分类号： F04B19/22 , F04B49/00 , F16J15/002 , F16J15/20
摘要： In order to provide a sealing device (15) for sealing a piston rod (8) of a reciprocating compressor (1), which provides good sealing properties at compressor standstill, which has a simple structure, which allows for a simple handling and which requires no external source of energy, the sealing device (15) comprises a number of first packing retainers (18), each retainer including a retaining opening (18a) in which a first packing ring (19) is arranged, a second packing retainer (20), including a retaining opening (20a) in which a second packing ring (21) is arranged, the second retainer (20) being positioned closer to the second axial device end (15b) than the number of first packing retainers (18) in an axial direction of the sealing device (15), wherein the second packing ring (21) is an uncut ring, comprising a continuous inner circumferential sealing surface (21a), wherein the second packing ring (21) is made from a material comprising a polymer, the material having a thermal expansion coefficient (α), which is at least two times higher than the thermal expansion coefficient (αFE) of iron, wherein at or below a defined activation temperature an inner diameter (d_i) of the second packing ring (21) is smaller than an outer diameter (D_a) of the piston rod (8) to be sealed, such that in the mounted state of the sealing device (15) in the compressor (1) the second packing ring (21) is prestressed in a radial direction in order to form a tight seal between the continuous inner circumferential sealing surface (21a) of the second packing ring (21) and the outer circumferential surface (8a) of the piston rod (8), wherein at a given operating temperature, the inner diameter (d_i) of the second packing ring (21) is larger than the outer diameter (D_a) of the piston rod (8), such that in the mounted state of the sealing device (15) in the compressor (1) the continuous inner circumferential sealing surface (21a) of the second sealing ring (21) is detached from the outer circumferential surface (8a) of the piston rod (8) in order to provide a leakage path past the second packing ring (21) in the axial direction.

5. 发明授权

US11939526B2 Vent stack lids and associated systems and methods 有权
公开(公告)号：US11939526B2
公开(公告)日：2024-03-26
申请号：US17471491
申请日：2021-09-10
申请人： SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
发明人： Gary Dean West , Chun Wai Choi , Thomas James Hirt
IPC分类号： C10B27/06 , B23P19/04 , F16J15/00 , F23J13/08 , F23L13/00 , C10B15/02 , C10B21/10
CPC分类号： C10B27/06 , B23P19/04 , F16J15/002 , F23J13/08 , F23L13/00 , C10B15/02 , C10B21/10 , Y10T29/49828
摘要： The present technology is generally directed to vent stack lids and associated systems and methods. In particular, several embodiments are directed to vent stack lids having improved sealing properties in a coke processing system. In a particular embodiment, a vent stack lid comprises a first lid portion proximate to and at least partially spaced apart from a second lid portion. The vent stack lid further comprises a first sealing portion coupled to the first lid portion and a second sealing portion coupled to the second lid portion. In several embodiments, the second sealing portion at least partially overlaps the first sealing portion over the space between the first and second lid portions. In further embodiments, at least one of the first or second sealing portions includes layers of tadpole seals, spring seals, rigid refractory material, and/or flexible refractory blanket.

6. 发明授权

US11840995B2 Piston device and pump device 有权
公开(公告)号：US11840995B2
公开(公告)日：2023-12-12
申请号：US16199157
申请日：2018-11-24
申请人： ElringKlinger AG , ElringKlinger Kunststofftechnik GmbH
发明人： Patrick Klein , Klaus Hocker , Fabian Kopp
IPC分类号： F02M59/44 , F02M59/10 , F16J15/00 , F16J15/32 , F16J15/56 , F04B1/0404 , F04B1/0408 , F04B53/10 , F04B17/05 , F04B53/16 , F04B53/14
CPC分类号： F02M59/442 , F02M59/102 , F04B1/0404 , F04B1/0408 , F04B17/05 , F04B53/10 , F04B53/16 , F16J15/006 , F16J15/32 , F16J15/56 , F02M2200/9038 , F04B53/143
摘要： In order to provide a piston device that is of simple construction and provides optimised sealing, it is proposed that the piston device should include the following: a housing that includes a piston receptacle; a piston that is arranged to be linearly displaceable in the piston receptacle; a main gasket element that separates a first medium space from a second medium space, and a supplementary gasket element, different from the main gasket element, for sealing in a region between the piston and the piston receptacle.

7. 发明授权

US11761538B2 Sealing system for rotary shaft 有权
公开(公告)号：US11761538B2
公开(公告)日：2023-09-19
申请号：US16783359
申请日：2020-02-06
申请人： Tamar (R.C.) Technologies Development Ltd.
发明人： Vaitzman Cohen-Zada
IPC分类号： F16J15/18 , F16J15/00 , F16J15/3272 , F16J15/16 , F16J15/324
CPC分类号： F16J15/182 , F16J15/006 , F16J15/164 , F16J15/324 , F16J15/3272
摘要： A sealing unit for a drive shaft driving a working fluid; the sealing unit comprising a sleeve attached to the drive shaft and a gland attached to the housing, a static seal ring attached to the gland and in close proximity to the sleeve, and a stuffing box about the static seal ring, fibrous packing seal blocking the distal and proximal ends of the stuffing box and a first sealant comprising a viscous, non-Newtonian fluid that is injected into the stuffing box under a first pressure exceeding the pressure of the working fluid; the sealing unit further comprising an inner fluid seal of a Newtonian fluid between the first sealant and the drive shaft upstream of the first sealant, such that the Newtonian fluid seal is kept at a pressure slightly higher than the pressure of the working fluid and prevents the working fluid from reaching the first sealant.

8. 发明授权

US11692628B2 Sealing device for gas-liquid two-phase fluid medium under variable working conditions 有权
公开(公告)号：US11692628B2
公开(公告)日：2023-07-04
申请号：US17486949
申请日：2021-09-28
申请人： CHANGSHU INSTITUTE OF TECHNOLOGY
发明人： Changping Liang , Qiaoping Yue , Junjun Liu , Feng Yi , Lin Wang
IPC分类号： F16J15/00 , F16J15/34 , F16J15/447
CPC分类号： F16J15/002 , F16J15/342 , F16J15/3424 , F16J15/447 , F16J15/4472 , F16J15/3448 , F16J15/3452
摘要： A sealing device for a gas-liquid two-phase fluid medium under variable working conditions includes a rotating shaft and a housing, and a chamber formed by the housing is configured to accommodate the gas-liquid two-phase fluid medium. The sealing device further includes a labyrinth sealing mechanism and a fluid dynamic-pressure mechanical sealing mechanism with double end faces, where the labyrinth sealing mechanism and the fluid dynamic-pressure mechanical sealing mechanism with double end faces conduct mutual synergetic effect. Sealing buffer chambers are arranged between the labyrinth sealing mechanism and the fluid dynamic-pressure mechanical sealing mechanism; the fluid dynamic-pressure mechanical sealing mechanism is provided with stationary rings and movable rings, where the stationary rings and the movable rings oppositely abut against with each other.

9. 发明申请

US20230101258A1 VALVE WITH EXCHANGEABLE PACKING SEAL CARTRIDGE 有权
公开(公告)号：US20230101258A1
公开(公告)日：2023-03-30
申请号：US17485678
申请日：2021-09-27
申请人： Flowserve Management Company
发明人： Paul Jeffrey Parish , Michael P. Nelson , Ivica Radman
IPC分类号： F16J15/00 , F16K1/42 , F16K1/36 , F16J15/18
摘要： A valve includes at least one valve stem seal, such as a packing seal, that is included in a removable seal cartridge. The valve stem is connected to the actuator via a linkage, which can be removed to provide a linkage gap between the actuator and the valve stem. The seal cartridge can then be slid along the valve stem into the linkage gap and laterally removed from the valve, whereupon the seals within the seal cartridge can be refurbished. The valve can be a rotary or linear valve. In embodiments, the linkage gap can be increased by linear displacement of the actuator away from the valve stem. The seal cartridge can be re-installed in the valve after refurbishment, or a substantially identical replacement seal cartridge can be provided, and can be installed in the valve in replacement of the removed seal cartridge, thereby minimizing downtime of the valve.

10. 发明申请

US20220397196A1 EXTERNAL MATERIAL INTRUSION-PROOF SEALING SYSTEM FOR ROLLERS USED IN CONVEYOR BELTS FOR BULK MATERIALS 有权
公开(公告)号：US20220397196A1
公开(公告)日：2022-12-15
申请号：US17347029
申请日：2021-06-14
申请人： Gabriel Ramirez Nunez
发明人： Gabriel Ramirez Nunez
IPC分类号： F16J15/00 , B65G23/04
摘要： A sealing system which is designed to leverage the centrifugal acceleration of solids and liquids due to the natural rotation of the roller, expelling them outside, preventing most of the contamination from trying to penetrate the roller seals. Excess of contaminants that is not centrifugally expelled is blocked by the following internal sealing system.

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