公开(公告)号：US12104698B2

公开(公告)日：2024-10-01

申请号：US17623715

申请日：2020-05-13

申请人： NOK CORPORATION

发明人： Hideya Watanabe ,  Yusuke Yoshida

IPC分类号： F16J15/18 ,  F16J15/3272 ,  F16J15/10 ,  F16J15/16

CPC分类号： F16J15/18 ,  F16J15/3272 ,  F16J15/104 ,  F16J15/164

摘要： A circular annular seal ring made from a resin is adapted to be disposed between an outer member and an inner member that rotate relative to each other. The seal ring is disposed in a circumferential groove of the outer member or the inner member to isolate a liquid space from an external space. The seal ring is formed from an elongated and arcuate rod to define a circle by joining ends of the rod, and has a junction formed from the ends. The seal ring has a radial thickness gradually decreasing from two points that are apart from the junction toward the junction. The points are separated from the junction by an angle of not less than 60 degrees and not more than 150 degrees about a central axis of the circle.

公开(公告)号：US12085087B1

公开(公告)日：2024-09-10

申请号：US17300585

申请日：2021-08-26

申请人： Timothy Neal Hilliard

发明人： Timothy Neal Hilliard

IPC分类号： F04D29/08 ,  F16J15/18

CPC分类号： F04D29/086 ,  F16J15/18 ,  F16J15/181

摘要： A self-aligning, self-lubricated waterless-gland assembly disposed about a rotatable shaft between a process side and an atmosphere side, comprising a shaft-sleeve disposed about, contacting, and rotatable with the shaft, an annular case connected to and rotatable with the shaft-sleeve, and a stationary elastomeric boot member disposed about the shaft-sleeve, substantially filling the annular case and arranged to form a sealing interface. The waterless-gland assembly is applicable to devices whereby a fluid is movable between an inlet and an outlet.

公开(公告)号：US12055008B2

公开(公告)日：2024-08-06

申请号：US16622374

申请日：2019-03-28

申请人： Halliburton Energy Services, Inc.

发明人： Chad William Glaesman ,  Timothy Alan Freeney

IPC分类号： F16J15/02 ,  B33Y80/00 ,  E21B33/12 ,  F16J15/10 ,  F16J15/18

CPC分类号： E21B33/1208 ,  B33Y80/00 ,  F16J15/024 ,  F16J15/102 ,  F16J15/104 ,  F16J15/18

摘要： A sealing assembly for use in a wellbore tool includes thermoplastic materials arranged in a lattice structure to provide a bulk elasticity on the order of elastomeric materials. The lattice structure permits an energizing element of the sealing assembly to deform sufficiently in the elastic range of the thermoplastic materials to provide repeatable sealing capabilities. The lattice structure may be constructed by additive manufacturing processes to include voids therein, which allow the thermoplastic members of the lattice to flex and bend. The energizing element may thereby exhibit a greater elasticity in bulk than the elasticity of the thermoplastic materials themselves. The lattice structure may be enclosed in an outer cover constructed of a polymeric, elastomeric or other material to facilitate the interaction between the seal assembly and the corresponding sealing surfaces of a downhole wellbore tool.

公开(公告)号：US20240102471A1

公开(公告)日：2024-03-28

申请号：US18472711

申请日：2023-09-22

申请人： Viking Pump, Inc.

发明人： Justin PIERCE ,  Andrew ANDERSON ,  Alfonso JOHNSON ,  Dylan LENDE ,  Scott MEYER

IPC分类号： F04C27/00 ,  F16J15/18

CPC分类号： F04C27/009 ,  F16J15/18

摘要： One or more techniques and/or systems are disclosed for a universal-type bracket that incorporates a substantially uniform diameter through-bore. This allows the bracket to accept current sealing arrangements used in these types of pumps, while providing the same or better sealing options as current individual designs. The single through-bore can have multiple undercut features for holding a pump shaft bushing, with an increased wall thickness to allow for an appropriate interference fit with the walls of the through-bore, for example, similar to previous designs. Retaining ring grooves can be added to the through-bore, and retaining rings may be used to provide a positive shoulder for the seal or packing rings to seat against inside the bore. This may allow for various sealing options, such as stuffing seals, one-piece barrier seals, cartridge seals, BTR seals, component seals, and more.

公开(公告)号：US11913449B2

公开(公告)日：2024-02-27

申请号：US17784599

申请日：2020-12-16

申请人： EAGLE INDUSTRY CO., LTD.

发明人： Hiroshi Suzuki ,  Yuichiro Tokunaga

IPC分类号： F04C18/02 ,  F04C29/02 ,  F16J15/18

CPC分类号： F04C18/0215 ,  F04C29/02 ,  F16J15/18

摘要： Provided is a sliding component capable of reducing the frictional resistance of a sliding surface entailing eccentric rotation. A sliding component is formed in an annular shape and has a sliding surface relatively sliding with eccentric rotation. A plurality of grooves not communicating with spaces on the inner and outer diameter sides of the sliding component are circumferentially provided in the sliding surface.

公开(公告)号：US20230341054A1

公开(公告)日：2023-10-26

申请号：US18342970

申请日：2023-06-28

申请人： TOYO SEIKAN CO., LTD.

发明人： TOMOHITO YOKOI ,  HIROMITSU FUNATSUKI ,  KYOUICHI KANGAWA

IPC分类号： F16J15/18 ,  B21D22/28 ,  B21D51/26

CPC分类号： F16J15/18 ,  B21D22/286 ,  B21D51/26

摘要： A wiping unit for a reciprocating ram includes a subunit including: a ring-shaped wipe member including a lip to press an outer peripheral surface of the ram; and an elastic ring disposed on an outer circumference of the wipe member and configured to press the lip on the outer peripheral surface of the ram. The wipe member is made of rigid resin.

公开(公告)号：US20190179235A1

公开(公告)日：2019-06-13

申请号：US16310919

申请日：2016-06-18

申请人： SANWA TECHNO CO., LTD. ,  Susumu SHOJI

发明人： Susumu Shoji ,  Kazuro Fukui

IPC分类号： G03G15/08 ,  D03D27/16 ,  B32B5/18 ,  B32B7/12 ,  B32B5/02 ,  B32B5/24 ,  F16J15/18

CPC分类号： G03G15/0817 ,  B32B5/024 ,  B32B5/18 ,  B32B5/245 ,  B32B7/12 ,  B32B2250/02 ,  B32B2255/02 ,  B32B2255/24 ,  B32B2581/00 ,  D03D27/00 ,  D03D27/16 ,  F16J15/18 ,  G03G15/00 ,  G03G15/08 ,  G03G2215/0636 ,  G03G2215/0855

摘要： A sealing material reduces heat due to friction produced by contact with a rotating body. The sealing material 1 has cut pile woven fabric 3c having stripes. The sealing material 1 prevents leakage of powder 8 from rotating body or straight body 7b. The woven pile fabric 3b constituting sealing material 1 is woven pattern 3a having stripes which is woven from pile yarn 6 comprising a plurality of filaments 9, woven pattern 3a being cut pile woven fabric 3c having cut pile 4 at which pile 4 is of prescribed length, cut pile woven fabric 3c having steps 7e produced by differences in thickness of cut pile 4 including woven pattern 3e having stripes. The length of cut pile 4 of prescribed length has cut pile length 4d which is greater than the spacing of a pitch between pile supporting yarns 5 that support pile 4.

公开(公告)号：US20180259026A1

公开(公告)日：2018-09-13

申请号：US15760828

申请日：2016-09-16

申请人： NIFCO INC.

发明人： Kei SHIMOZAKI

IPC分类号： F16F9/02 ,  F16F9/348

CPC分类号： F16F9/0227 ,  E05F5/10 ,  F16F9/02 ,  F16F9/0218 ,  F16F9/32 ,  F16F9/34 ,  F16F9/3405 ,  F16F9/3481 ,  F16F9/368 ,  F16F2230/30 ,  F16J15/18 ,  F16J15/3204

摘要： A damper includes a piston and a cylinder housing the piston, and generates a braking force based on a movement or relative movement of the piston. The piston includes a trunk portion and a seal ring surrounding the trunk portion. A first seal portion against an inner wall of the cylinder is formed on an outer peripheral portion in the seal ring, and a second seal portion against a circumference wall portion projecting from the trunk portion is formed in a front end portion positioned on a pressure chamber side. Also, a support rib portion is provided outside the trunk portion, which allows the seal ring to move within a predetermined range along a moving direction of the piston in a state wherein a movement gap for a fluid is formed between the trunk portion and an inner peripheral portion of the seal ring.

公开(公告)号：US20180231127A1

公开(公告)日：2018-08-16

申请号：US15516636

申请日：2015-09-30

申请人： NTN CORPORATION

发明人： Kohzoh KAKEHI ,  Takumi KONDOU

IPC分类号： F16J15/3248

CPC分类号： F16J15/3248 ,  F16J15/18 ,  F16J15/441

摘要： The present invention provides a seal ring capable of maintaining excellent low torque generation performance for a long term. A seal ring (1) is mounted on an annular groove formed on one member consisting of either a housing having a shaft hole or a rotary shaft inserted into the shaft hole, partly projects from the annular groove and contacts a surface of other member consisting of either the housing or the rotary shaft, and slidably contacts a side wall surface of the annular groove at a non-sealed fluid side thereof, thereby sealing an annular gap between the one member and the other member. An outer diameter side (2a) of the side surface (2) of the ring to be subjected to at least the side wall surface of the annular groove is formed as an inclined surface having an inclined angle in such a way as to decrease a width of the ring from the outer diameter side of the side surface of the ring to an inner diameter side of the side surface thereof. A concave portion (3) which does not contact the side wall surface of the annular groove and communicates with an inner circumferential surface (1b) of the ring is formed on a portion of the inner diameter side (2b) of the side surface of the ring not projecting from the annular groove.

公开(公告)号：US20180195591A1

公开(公告)日：2018-07-12

申请号：US15759315

申请日：2016-09-27

申请人： THK CO.,LTD.

发明人： Tetsuhiro NISHIDE ,  Masahiko YOSHINO ,  Toshiaki SHINOHARA

IPC分类号： F16H25/24 ,  F16H57/04 ,  F16H25/22 ,  F16J15/18

CPC分类号： F16H25/2418 ,  F16H25/2204 ,  F16H57/0497 ,  F16J15/18 ,  F16J15/3268

摘要： A screw apparatus with a seal ring is provided which has a reduced number of components and is easy to be assembled. The screw apparatus includes a screw shaft, a nut that includes a through-hole penetrated by the screw shaft and threadedly engages with the screw shaft via a rolling element, seal rings that include holes fitting the shape of a cross-section of the screw shaft, the cross-section being perpendicular to an axis thereof, and prevent the entry of dust into the inside of the nut, and/or prevent the leaking of lubricant in the nut, and a cap attached to the nut, the cap including protrusions fitted into indentations of the seal rings to effect positioning of the seal rings in a circumferential direction, the cap including a step in contact with the seal rings to effect positioning of the seal rings in an axial direction.