公开(公告)号：US11766761B1

公开(公告)日：2023-09-26

申请号：US16993055

申请日：2020-08-13

Applicant: US Synthetic Corporation

Inventor： Daniel Marin Scott ,  Daren Nathaniel Heaton ,  Jeremy Brett Lynn ,  Mark Pehrson Chapman ,  Oakley D. Bond

IPC: B24D18/00 ,  B24D3/00 ,  B24D3/10 ,  C25F7/00 ,  B24D99/00 ,  F16C33/04 ,  F16C33/26 ,  C25F3/02 ,  B24D3/02 ,  B24D11/00 ,  F16C17/04 ,  F16C17/02

CPC classification number: B24D3/005 ,  B24D3/10 ,  B24D18/00 ,  B24D18/0009 ,  B24D99/005 ,  C25F3/02 ,  C25F7/00 ,  F16C33/043 ,  F16C33/26 ,  B22F2999/00 ,  F16C17/02 ,  F16C17/04

Abstract: A method of processing a superabrasive element includes providing a superabrasive element including a polycrystalline diamond table that includes a metallic material disposed in interstitial spaces defined within the polycrystalline diamond table. The polycrystalline diamond table includes a superabrasive face and a superabrasive side surface extending around an outer periphery of the superabrasive face. The method also includes leaching the metallic material from at least a volume of the polycrystalline diamond table to produce a leached volume in the polycrystalline diamond table by (1) exposing at least a portion of the polycrystalline diamond table to a processing solution, (2) exposing an electrode to the processing solution, and (3) applying a charge to the electrode such that a voltage is generated between the polycrystalline diamond table and the electrode and the voltage is applied to the processing solution. The method includes the use of an improved processing solution, including an organic acid and a divalent (e.g., Group II) metal salt, to increase the leaching depth.

公开(公告)号：US11753873B1

公开(公告)日：2023-09-12

申请号：US17323537

申请日：2021-05-18

Applicant: US SYNTHETIC CORPORATION

Inventor： Greg Carlos Topham ,  Renato Ventura

IPC: E21B10/56 ,  E21B10/62 ,  E21B10/46 ,  F16C33/26 ,  C22C26/00 ,  E21B10/567 ,  E21B10/573 ,  B24D18/00 ,  E21B10/54

CPC classification number: E21B10/567 ,  B24D18/0009 ,  C22C26/00 ,  E21B10/46 ,  E21B10/54 ,  E21B10/5676 ,  E21B10/573 ,  E21B10/62 ,  F16C33/26 ,  F16C2206/04 ,  F16C2240/48

Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a structure for enhancing at least one of abrasion resistance, thermal stability, or impact resistance. In an embodiment, a PDC includes a PCD table. The PCD table includes a lower region including a plurality of diamond grains exhibiting a lower average grain size and at least an upper region adjacent to the lower region and including a plurality of diamond grains exhibiting an upper average grain size. The lower average grain size may be at least two times greater than that of the upper average grain size. The PDC includes a substrate having an interfacial surface that is bonded to the lower region of the PCD table. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

公开(公告)号：US20190249716A1

公开(公告)日：2019-08-15

申请号：US16394259

申请日：2019-04-25

Applicant: NTN CORPORATION

Inventor： Yoshinori ITO ,  Takahiro GOTOU ,  Fuminori SATOJI

IPC: F16C33/10 ,  B22F3/16 ,  B22F5/10 ,  F16C33/14 ,  F16C33/16 ,  B22F1/02 ,  F16C33/26

CPC classification number: F16C33/10 ,  B22F1/02 ,  B22F3/162 ,  B22F5/106 ,  B22F7/062 ,  B22F2998/10 ,  C22C32/0084 ,  F16C33/1095 ,  F16C33/14 ,  F16C33/16 ,  F16C33/26 ,  F16C2204/10 ,  F16C2220/20 ,  B22F1/0059 ,  B22F3/10 ,  B22F2003/023 ,  B22F2003/166

Abstract: Raw material powder containing metal powder as a main component is molded to form a metal powder molded body (3′), and the metal powder molded body (3′) is sintered to form a metal substrate (3). Further, a lubricating member (4) is made of an aggregate of graphite particles (13), and at least a part of a bearing surface (11) is formed of the lubricating member (4). The lubricating member (4) is fitted into the metal powder molded body (3′). After that, the metal powder molded body (3′) is sintered, and at this time, the lubricating member (4) is fixed onto the metal substrate (3) with a contraction force (F) generated in the metal powder molded body (3′).

公开(公告)号：US20190195205A1

公开(公告)日：2019-06-27

申请号：US16322176

申请日：2017-06-27

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Uffe Erikson ,  Edom Lemma ,  Thorkil Munk-Hansen ,  Kim Thomsen

IPC: F03D80/70 ,  F03D80/50

CPC classification number: F03D80/70 ,  F03D1/00 ,  F03D80/50 ,  F05B2230/80 ,  F05B2260/845 ,  F16C17/02 ,  F16C17/20 ,  F16C33/26 ,  F16C35/02 ,  F16C2237/00 ,  F16C2360/31 ,  Y02E10/722 ,  Y02P70/523

Abstract: Provided is a wind turbine, including a rotor with a rotor shaft connected to a generator and a bearing housing, whereby the bearing housing includes at least a first bearing group and a second bearing group each comprising at least a primary bearing setup and a secondary bearing setup in which bearing is receivable, whereby the rotor shaft is rotatably arranged by the primary bearing setups or the secondary bearing setups.

公开(公告)号：US20180335084A1

公开(公告)日：2018-11-22

申请号：US15776870

申请日：2016-12-21

Applicant: Halliburton Energy Services, Inc.

Inventor： Steven Graham Bell

IPC: F16C33/26 ,  F16C17/02 ,  F16C33/04

CPC classification number: F16C33/26 ,  E21B4/003 ,  F16C17/02 ,  F16C33/043 ,  F16C2206/04 ,  F16C2240/40 ,  F16C2352/00

Abstract: A radial bearing for transmitting a radial load, including a first radial bearing component defining a first radial bearing surface and an orientable second radial bearing component defining a second radial bearing surface. At least a portion of the first radial bearing surface is provided by a first radial bearing material. A portion of the second radial bearing surface is provided by a second radial bearing material. The first radial bearing component and the second radial bearing component interact to transmit the radial load between the first radial bearing component and the second radial bearing component at a radial load location on the second radial bearing component. The second radial bearing material is provided as the portion of the second radial bearing surface such that the second radial bearing material is concentrated at the radial load location.

公开(公告)号：US10054154B2

公开(公告)日：2018-08-21

申请号：US15600529

申请日：2017-05-19

Applicant: US SYNTHETIC CORPORATION

Inventor： Craig H. Cooley ,  Timothy N. Sexton

IPC: F16C17/06 ,  F16C33/26 ,  E21B4/00 ,  F16C43/02 ,  F16C17/03 ,  F16C33/04 ,  C23C16/30

CPC classification number: F16C17/06 ,  C23C16/30 ,  E21B4/003 ,  F16C17/03 ,  F16C33/043 ,  F16C33/26 ,  F16C43/02 ,  F16C2206/04 ,  F16C2226/34 ,  F16C2352/00

Abstract: Tilting pad bearing assemblies and apparatuses are disclosed. The disclosed tilting pad bearing assemblies and apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment, a bearing assembly or apparatus includes a support ring and a plurality of tilting pads. Each tilting pad is tilted and/or tiltably secured relative to the support ring. In some embodiments, one or more of the tilting pads include a plurality of superhard bearing segments assembled to form a superhard bearing surface. One or more seams may be positioned between adjacent superhard bearing segments of the superhard bearing segments. In other embodiments, one or more of the tilting pads may include at least one or only one superhard bearing segment, such as a polycrystalline diamond bearing segment.

公开(公告)号：US20180187720A1

公开(公告)日：2018-07-05

申请号：US15738094

申请日：2016-05-31

Applicant: DALIAN SANHUAN COMPOSITE MATERIAL TECHNOLOGY DEVELOPMENT CO., LTD

Inventor： Dazhuang QU ,  Chengyu SUN ,  Xigao JIAN ,  Changbo LIU

IPC: F16C33/20 ,  F16C33/66 ,  F04D29/06 ,  F04D29/046 ,  F16C33/10

CPC classification number: F16C33/205 ,  F04D29/046 ,  F04D29/0473 ,  F04D29/061 ,  F16C17/04 ,  F16C33/1025 ,  F16C33/201 ,  F16C33/206 ,  F16C33/26 ,  F16C33/6637 ,  F16C2208/36 ,  F16C2223/80 ,  F16C2226/30 ,  F16C2240/42 ,  F16C2240/44 ,  F16C2240/60 ,  F16C2360/00 ,  G21D1/04

Abstract: A water lubricated composite thrust bearing of a nuclear main pump has a stainless steel base and an engineering plastic layer. The stainless steel base is provided with a concave-convex surface connected to the engineering plastic layer. The concave-convex surface and the engineering plastic layer are compositely molded by means of thermoplastic compound molding. A ratio of the area of the concave-convex surface to the area of an orthographic projection of the concave-convex surface on the stainless steel base ranges from 1.2 to 2. By means of the concave-convex surface and a specific bonding property obtained after fusion of a rough face and the engineering plastic layer, the concave-convex surface is bonded with the engineering plastic layer, thereby forming a reliable composite thrust bearing that is physically connected onto a whole.

公开(公告)号：US09816554B2

公开(公告)日：2017-11-14

申请号：US15274103

申请日：2016-09-23

Applicant: US SYNTHETIC CORPORATION

Inventor： Jair Jahaziel Gonzalez

IPC: F16C33/04 ,  F16C17/02 ,  F16C33/10 ,  E21B4/02 ,  F16C17/04 ,  F16C17/12 ,  F16C33/26 ,  E21B4/00 ,  E21B10/00

CPC classification number: F16C33/043 ,  E21B4/003 ,  E21B4/02 ,  E21B10/00 ,  F16C17/02 ,  F16C17/04 ,  F16C17/12 ,  F16C33/1075 ,  F16C33/108 ,  F16C33/109 ,  F16C33/26 ,  F16C2206/04 ,  F16C2206/40 ,  F16C2352/00

Abstract: Embodiments of the invention are directed to bearing assemblies configured to effectively carry nonuniform loads, bearing apparatuses including such bearing assemblies, and methods of operating such bearing assemblies and apparatuses. In an embodiment, under some operational conditions, one or more portions of the bearing assemblies and bearing apparatus may be preferentially loaded, such as to carry preferentially higher loads (e.g., radial and/or axial loads) than other portion(s) of the bearing assemblies and bearing apparatus.

公开(公告)号：US09776540B2

公开(公告)日：2017-10-03

申请号：US14974686

申请日：2015-12-18

Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS PAMPUS GMBH

Inventor： Oliver Otto

IPC: A47C7/36 ,  A47C7/38 ,  B60N2/48 ,  F16C33/20 ,  F16C29/02 ,  F16C33/04 ,  F16C33/26

CPC classification number: B60N2/809 ,  B60N2/897 ,  F16C29/02 ,  F16C33/046 ,  F16C33/20 ,  F16C33/201 ,  F16C33/205 ,  F16C33/208 ,  F16C33/26 ,  F16C2326/08

Abstract: A bearing including an annular substrate defining a first and a second opposite axial ends; and a plurality of sliding components attached to and extending radially from the annular substrate, each sliding component extending at least partially between the first and second opposite axial ends of the annular substrate. A head restraint assembly including a head restraint having a body and a first and second post extending from the body; a first guide sleeve having a first bearing for receiving the first post; and a second guide sleeve having a second bearing for receiving the second post.

公开(公告)号：US09759264B1

公开(公告)日：2017-09-12

申请号：US14333045

申请日：2014-07-16

Applicant: US SYNTHETIC CORPORATION

Inventor： Timothy N. Sexton

IPC: F16C43/02 ,  F16C17/00

CPC classification number: F16C43/02 ,  F16C17/00 ,  F16C17/02 ,  F16C17/04 ,  F16C33/043 ,  F16C33/26 ,  F16C2206/04

Abstract: Durability-enhanced bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface. The bearing assembly may further include a support ring structure that carries the plurality of superhard bearing elements. The support ring structure may have a first portion that exhibits a first yield strength and a second portion that exhibits a second yield strength. The first yield strength of the first portion may be greater than the second yield strength of the second portion.