Patents Examined by Alan B Waits
  • Patent number: 11225998
    Abstract: A semi-cylindrical half bearing for a sliding bearing includes at least one axial groove formed on its inner circumferential surface that includes a smooth groove surface formed back away from the inner circumferential surface toward a radially outer side. The half bearing further includes a plurality of axial narrow grooves and a plurality of circumferential narrow grooves that are formed further back away from the groove surface toward the radially outer side, and extend in circumferential and axial directions, respectively, so as to cross each other. A depth of the axial narrow groove from the groove surface is greater than a depth of the circumferential narrow groove from the groove surface, and a width of the axial narrow groove on the groove surface is greater than a width of the circumferential narrow groove on the groove surface.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: January 18, 2022
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Shiho Goto, Seiji Amano, Ryota Ito
  • Patent number: 11226004
    Abstract: A rolling element for use in a rolling-element bearing is proposed, including an outer casing and a bore hole. The bore hole is provided along a center line of the rolling element. The rolling element has at least one sensor arranged in the bore hole for load measurement and a radio module for transmitting the data measured by the sensor, wherein the rolling element has a micro-generator to provide the energy required for operation of the sensor and/or of the radio module.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 18, 2022
    Assignees: THYSSENKRUPP ROTHE ERDE GMBH, THYSSENKRUPP AG
    Inventors: Gunther Elfert, Bernd Lueneburg, Joerg Rollmann, Manfred Reimann
  • Patent number: 11221045
    Abstract: A thin-wall bearing, including an outer ring and an inner ring. The inner ring surface of the outer ring is provided with an outer ring raceway, and the outer ring surface of the inner ring is provided with an inner ring raceway. A steel ball and a cage for installing the steel ball are arranged between the outer ring raceway and the inner ring raceway. A plurality of screw holes are evenly distributed in a circle around the side wall of the outer ring, and knurled screws are provided in the screw holes, respectively. The fit between the knurled screw and the screw hole 10-?9 is to be N6/h5. The radial clearance of the thin-wall bearing is greater than or equal to 0.01 but less than or equal to 0.09. A processing method of the thin-wall bearing.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: January 11, 2022
    Inventors: Baoguo Chen, Cheng Wang, Jing Guo
  • Patent number: 11221042
    Abstract: This half thrust bearing having a half-ring shape has: a sliding surface for receiving force in the axial direction; a back surface opposed to the sliding surface; and a resin covering layer on the sliding surface. The half thrust bearing is characterized in that the thickness of the resin covering layer is greatest at the circumferential central part of the half thrust bearing, and becomes lesser toward both circumferential ends of the half thrust bearing. The present invention also pertains to a thrust bearing, a bearing device, and an internal combustion engine.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 11, 2022
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Tetsuya Ogawa, Kazuki Sakai
  • Patent number: 11221043
    Abstract: A split stabilizer bearing for a mast of a rotary distributor includes a split cylindrical housing, a split filament wound bushing, a plurality of polytetrafluoroethylene-coated carbon fiber ring seals, an annular split seal retainer, and multiple fasteners. The filament wound bushing is disposed inside the housing, along an inner surface thereof. The bushing has a backing layer of high-strength glass fiber and an inner sliding layer of polytetrafluoroethylene (PTFE) and polymer fiber, the two layers both embedded in a epoxy resin matrix. The carbon fiber ring seals are disposed on axially or longitudinally opposed sides of the bushing and along an inner side or surface of the cylindrical housing, preferably in respective annular recesses or offsets along the inner side or surface of the housing. The fasteners, nylon-patch locking screws or bolts, couple the bushing and the split seal retainer to the housing.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: January 11, 2022
    Assignee: OVIVO INC.
    Inventors: Robert Eugene Holder, Richard Darin Swan, Brendan Joseph Kelly
  • Patent number: 11221044
    Abstract: A rolling bearing includes: an inner ring; an outer ring; a plurality of rolling elements provided between an inner ring raceway and an outer ring raceway; and a cage that holds the rolling elements at intervals in a circumferential direction. The cage includes an annular portion provided in a first axial direction with respect to the rolling elements, and a plurality of cage bars provided to extend in a second axial direction from the annular portion. The annular portion includes a contact surface that makes sliding contact with a shoulder portion. The cage bars each include a first projecting portion and a second projecting portion. The second projecting portion covers a part of the inner ring raceway on a side of the shoulder portion.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 11, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Keisuke Kojima, Katsuyuki Harada, Naoki Masuda, Hironori Hiraoka
  • Patent number: 11215225
    Abstract: The present disclosure relates to a bearing arrangement for supporting a shaft, in particular a shaft of a gearing mechanism for an electromechanical brake booster, having: at least one bearing, a shaft, which is at least section-wise accommodated in the at least one bearing and has a protruding, rounded region on at least one of its axial end surfaces, at least one spring element, that engages the protruding, rounded region in order to prestress the shaft in the axial direction.
    Type: Grant
    Filed: November 16, 2019
    Date of Patent: January 4, 2022
    Assignees: ZF Friedrichshafen AG, ZF Active Safety GmbH
    Inventors: José Manuel Calvo Martinez, Stefan Kammers, Karl-Josef Adams, Martin Hofmann, Oliver Schell
  • Patent number: 11215231
    Abstract: An inner ring for a bearing assembly comprises an inner circumferential surface disposed between a first axial end and a second axial end. A circumferential slot is disposed in the inner circumferential surface adjacent the second axial end. At least one radial passage is disposed within the inner ring and is in fluid communication with the circumferential slot. At least one axial slot extends axially along the inner circumferential surface from a respective opening in the first axial end to the circumferential slot. At least one of the radial passage is circumferentially offset from each at least one axial slot.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: January 4, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Cédric Poirier
  • Patent number: 11215228
    Abstract: A ball bearing includes an inner ring, an outer ring, a plurality of balls rollably provided between the inner ring and the outer ring, and a cage configured to hold the plurality of balls at equal intervals in a circumferential direction. The cage includes a plurality of pockets configured to hold the balls. The plurality of pockets include at least two types of pockets including a first pocket and a second pocket. A gap on each of an outer circumferential surface side and an inner circumferential surface side of the cage between the ball and an inner circumferential surface of the second pocket is larger than a gap on each of the outer circumferential surface side and the inner circumferential surface side of the cage between the ball and an inner circumferential surface of the first pocket.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 4, 2022
    Assignee: NSK LTD.
    Inventor: Toru Nanasawa
  • Patent number: 11209050
    Abstract: A contamination-resistant bearing assembly includes an inner ring, an outer ring, a rolling unit, two contamination-resistant internal sleeves and two contamination-resistant external sleeves. The outer ring cooperates with the inner ring to define a bearing space where the rolling unit and the sleeves are disposed. The external sleeves are located at two opposite sides of the internal sleeves which are located at two opposite sides of the rolling unit in an axial direction. Each of the external sleeves includes a metal rigid shell and a sealing member.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: December 28, 2021
    Assignee: THAI DIENG INDUSTRY CO., LTD.
    Inventor: Cheng-Wei Chang
  • Patent number: 11209047
    Abstract: A liquid guiding structure for a fluid dynamic pressure bearing, comprising: a fluid dynamic pressure bearing having an inner recess chamber and a liquid guiding trench which is formed between two sides of the inner recess chamber so as to form a circular close liquid guiding structure; wherein the liquid guiding trench includes at least two small V shape paths and at least one large V shape path; the large V shape path is larger than the small V shape paths and is located between the at least two small V shape paths. First angles at tip ends of the at least two small V shape paths are equal. A second angle between connections of the small V shape path and a respective large V shape path is larger than the first angle at tip ends of the at least two small V shape paths.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: December 28, 2021
    Inventor: John Wun-Chang Shih
  • Patent number: 11199219
    Abstract: A method of manufacturing a bottom bearing may include forming a first half-cylinder and a second half-cylinder, the first half-cylinder including a first shoulder and a first inside surface and the second half-cylinder including a second shoulder and a second inside surface. The first shoulder and second shoulder are configured to bear the weight of a vertical shaft by exerting an upward force on a sleeve in mechanical communication with the vertical shaft.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 14, 2021
    Inventor: Terry Michael Brown
  • Patent number: 11193529
    Abstract: Disclosed herein is a thrust bearing for a turbo compressor, the thrust bearing has a structure that is modified in response to a portion where a deformation amount of a thrust runner is relatively large on the basis of magnitude of a force applied at the time of rotation of a shaft of a turbo compressor, to maintain a thickness of an oil film constantly and to increase a load supporting force of the thrust bearing, thereby ensuring improved durability of the thrust bearing.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: December 7, 2021
    Assignee: LG Electronics Inc.
    Inventors: Changgook Moon, Jun Chul Oh, Seheon Choi
  • Patent number: 11193537
    Abstract: A bearing member (B1) having a coating layer (1) on an internal circumferential surface of a shaft hole (H) configured to mount a shaft body (P1), the coating layer (1) having a metal layer (2) whose surface is formed unevenly, and a resin layer (3) formed on the metal layer (2), the metal layer (2) having a part thereof exposed (2A) on a surface of the resin layer (3), to inhibit the increase in temperature caused by sliding contact with the shaft body (P1), and accomplishing improvement in seizure resistance.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 7, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hayato Hirayama, Takemichi Yamashita, Tsuyoshi Higuchi, Yutaka Mabuchi
  • Patent number: 11187267
    Abstract: Provided is a bearing structure, including: a damper groove formed in at least one of an outer peripheral surface of an outer ring of a rolling bearing or an inner peripheral surface of a bearing hole so as to extend in a circumferential direction of a shaft; and a second oil drain hole having one end communicating with the damper groove, and another end opened to an outside of a cylindrical portion.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: November 30, 2021
    Assignee: IHI Corporation
    Inventors: Yutaka Uneura, Takahiro Tanaka, Hiroki Mochizuki, Shunsuke Nishii, Hideyuki Kojima
  • Patent number: 11187269
    Abstract: A bearing assembly comprising a first component and a second component, the first and second components being slidably disposed with respect to each other, wherein the first component slides relative to the second component in a first direction, wherein the first component comprises a plurality of first recesses formed in a first surface facing the second component, wherein the first recesses are distributed in a second direction perpendicular to the first direction with neighboring first recesses being spaced apart in the second direction with a first spacing, wherein the second component comprises a plurality of second recesses formed in a second surface facing the first surface of the first component, wherein the second recesses are distributed in the second direction with neighboring second recesses being spaced apart in the second direction with a second spacing, wherein the first recesses are sized to fit within the second spacings and the second recesses are sized to fit within the first spacings, a
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 30, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Khizer Tufail, Arup Gangopadhyay, Roland Stark, Thomas Reddyhoff, Sorin-Cristian Vladescu
  • Patent number: 11187272
    Abstract: A method for mounting a sensor bearing unit providing a bearing and an impulse ring provided with a target holder and with a target mounted on an axial portion of the target holder. The method including measuring an eccentricity E1 between the target and the axial portion of the target holder, measuring an eccentricity E2 between a groove made in the bore of an inner ring of the bearing and the bore, introducing the target holder inside the groove, turning the target holder inside the groove to an angular position in which the eccentricity Etotal between the target and the bore of the inner ring is less than or equal to a predetermined value which is lower than the sum of the eccentricities E1 and E2, and securing the target holder inside the groove of the inner ring at the angular position.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 30, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Yves-André Liverato, Eric Robert, Vincent Sausset
  • Patent number: 11187264
    Abstract: A bearing device, a compressor and a method, in which a first radial bearing element is measured in at least the radial direction, an axial distance of the first axial bearing element from the first radial bearing element being measured, the second radial bearing element being measured in at least the radial direction, the first radial bearing element being positioned with respect to the second radial bearing element as a function of the predefined first width of the radial gap, the adjustment arrangement being situated in such a way that the axial gap has the predefined second width.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 30, 2021
    Assignee: Robert Bosch GmbH
    Inventor: Nils Giesselmann
  • Patent number: 11181141
    Abstract: An air foil bearing includes a bearing housing having a cylindrical shape that forms an accommodation space in a middle thereof for a rotating shaft, rotor, or journal; a first foil including a plurality of bump foils, which are arranged along an inner wall surface of the accommodation space of the bearing housing; and a second foil including a plurality of top foils, which are arranged in a circumferential direction along an inner circumference of the bearing housing to correspond to the plurality of bump foils and to support the rotating shaft, rotor, or journal. A portion of at least one of the plurality of top foils of the second foil is thicker than the other top foils of the plurality of top foils.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: November 23, 2021
    Assignee: HANWIIA POWER SYSTEMS CO., LTD
    Inventors: Tae Wook Lee, Kang Soo Im, Jin Tae Kim, Jong Won Choi
  • Patent number: 11181142
    Abstract: A bearing system includes a first bearing, a second bearing, and a rotating member. The first bearing is hollow and has a first inner face. The second bearing is located in the first bearing. The second bearing includes a second inner face axially aligned with the first inner face. A partitioning space is formed between the first inner face and the second inner face. The rotating member has a shaft and a protruding portion coupled to the shaft. The protruding portion is located in the partitioning space. A dynamic pressure gap is formed between the protruding portion and the first inner face during rotation. Another dynamic pressure gap is formed between the protruding portion and the second inner face during rotation.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: November 23, 2021
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Ko-Chien Wang