Patents Examined by James Pilkington
  • High speed bearing cage
    Patent number: 11365762
    Abstract: A bearing cage is disclosed that includes a first ring and a second ring with a plurality of crossbars extending therebetween to define a plurality of rolling element pockets. The first ring and the second ring each include a plurality of radially outward protrusions, a plurality of reliefs, and a plurality of axially extending protrusions extending into the plurality of rolling element pockets. The plurality of crossbars each include a plurality of retention tabs configured to engage rolling elements in the plurality of rolling element pockets.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: June 21, 2022
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Guihui Zhong
  • Bearing and power generation system having same
    Patent number: 11359667
    Abstract: Provided are a bearing and a power generation system including the same. The bearing supporting a shaft system of a power generation system in a radial direction includes a pad disposed on an outer side of the shaft system with respect to the radial direction and including a cooling path through which oil flows. In the bearing and the power generation system including the same, the cooling flow path is formed through the pad so that the oil existing between the pad and the shaft system flows into the cooling flow path to cool the pad. Accordingly, the pad is continuously cooled during the operation of the power generation system, and the temperature of the pad is prevented from rising above the threshold value even if friction occurs between the shaft system and the pad.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: June 14, 2022
    Inventor: Yeong Chun Kim
  • Two-piece roller retainer cage for a roller thrust bearing
    Patent number: 11353060
    Abstract: A roller retainer cage for a roller thrust bearing, including a first cage half with an annular portion, a first flange extending axially from an inner peripheral edge of the annular portion and a second flange extending axially from an outer peripheral edge of the annular portion, a second cage half including an annular portion, a first flange extending axially from an inner peripheral edge of the annular portion and a second flange extending axially from an outer peripheral edge of the annular portion, wherein the first flange of the first cage half is disposed radially-outwardly of the first flange of the second cage half, the second flange of the first cage half is disposed radially-inwardly of the second flange of the second cage half, and the first cage half is comprised of a through-hardened metal.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 7, 2022
    Assignee: Koyo Bearings North America LLC
    Inventors: Yoshitaka Waseda, Trent Carpenter
  • Rescue bearing
    Patent number: 11346400
    Abstract: Disclosed herein is a rescue bearing, in accordance with some embodiments. Accordingly, the rescue bearing comprises an outer ring, an inner ring, rolling elements, and fastening elements. Further, the inner ring comprises a middle portion and opposing side portions. Further, a first side portion of the opposing side portions extends axially from a first side end of the middle portion beyond a first outer ring edge of the outer ring. Further, a second side portion of the opposing side portions extends axially from a second side end of the middle portion beyond a second outer ring edge of the outer ring. Further, the inner ring is configured for receiving a shaft into a bore of the inner ring based on inserting the shaft into the bore. Further, the opposing side portions is configured to be fastened to the shaft using the fastening elements.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 31, 2022
    Inventors: Ronald Higinbotham, Thomas Higinbotham
  • Bearing device and construction machine
    Patent number: 11346394
    Abstract: A bearing device that includes a large-diameter section that is provided on a shaft and regulates an axial position of a collar relative to the shaft. The bearing device has a bearing that rotatably retains the shaft at a position outside of a boss section, and has a cylindrical bearing member opposed to the opposing section of the collar at one end. The bearing device includes a floating seal for sealing a lubricant which is sandwiched between the opposing section of the collar and the one end of the bearing member. The bearing device includes a mounting member mounted to the end of the shaft and positioned on the other end of the bearing member to regulate the axial position of the bearing relative to the shaft.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 31, 2022
    Assignee: Caterpillar SARL
    Inventors: Seiji Iijima, Naoki Miyata, Kazufumi Nishimoto, Yasunori Komatsubara, Yuma Yabuki
  • Bearing assembly and adjustment screw for adjusting the bearing clearance
    Patent number: 11346396
    Abstract: A bearing assembly for supporting a rotor in a fixed housing includes multiple slide bearing segments, each having a slide bearing body supported against a sliding surface. In the region of each slide bearing segment, the bearing clearance between the respective slide bearing body and the sliding surface is adjustable by an adjustment screw, each adjustment screw having an outer thread via which the screw can be screwed into a recess having an inner thread, each adjustment screw having a groove delimited on both sides by adjustment screw sections. A clamping screw extends through the adjustment screw sections and also through the groove, the adjustment screw sections can be clamped by the clamping screw, whereby each adjustment screw can be secured in the respective recess.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 31, 2022
    Assignee: RENK GMBH
    Inventors: Thorsten Rohrmann, Lutz Winter, Peter Decker
  • Sliding element comprising a pigment
    Patent number: 11339829
    Abstract: A sliding element for an engine may include a polymer-based overlay layer and a metallic substrate. The polymer-based overlay layer may include a polymer-based matrix, a metal particulate, and a pigment. The pigment may have a hardness of at least 4 on the Mohs hardness scale.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 24, 2022
    Inventors: Kevin Jupe, Kayleigh McEwan
  • Pad for a tilting pad thrust bearing assembly and thrust bearing assembly
    Patent number: 11333194
    Abstract: A pad for a tilting pad thrust bearing for supporting the shaft of a rotary machine includes a top surface, a leading edge extending in a radial direction and a trailing edge. The pad further includes a fluid channel arranged at the top surface, the fluid channel ending in the top surface, and the fluid channel forming a fluid communication between the leading edge of the pad and the top surface of the pad.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 17, 2022
    Assignee: SULZER MANAGEMENT AG
    Inventor: Christopher David Radcliffe
  • Bearing system for a fire hydrant
    Patent number: 11333193
    Abstract: A bearing system includes a first bearing, the first bearing being annular in shape and defining a ring aperture, the first bearing including a first surface and a second surface, a second bearing being substantially the same in construction to the first bearing, a first surface of the second bearing contacting a second surface of the first bearing, wherein each of the bearings is constructed of nylon MDS.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 17, 2022
    Assignee: Mueller International, LLC
    Inventors: Yanlong Li, Paul S. Gifford, Walter Pierce Wojick
  • Air suspension support and motion guiding device having unequal-depth throttling chambers
    Patent number: 11326642
    Abstract: An air suspension support and motion guiding device having unequal-depth throttling chambers. Throttling plugs (10) are arranged regularly on an air suspension working surface, forming an array of throttling chambers with unequal depths. The invention improves the rotational stiffness per unit area for an air suspension working surface while ensuring support and stability of an air-suspended rail (1) and enables construction of a small-volume, long cantilever, high torque load two-dimensional motion reference device.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 10, 2022
    Assignee: Harbin Institute of Technology
    Inventors: JianWei Wu, ZhongPu Wen, PengCheng Hu, JiWen Cui, JiuBin Tan
  • Spherical plain bearing
    Patent number: 11319165
    Abstract: A spherical bearing assembly includes a shaft extending through an opening of an inner ring, the inner ring having a spherically curved outer surface, a clamping sleeve on the shaft, the clamping sleeve extending through the opening of the inner ring, and an outer ring having an inner surface complementary to the outer surface of the inner ring. The inner ring is mounted in the outer ring with the outer surface of the inner ring slidably supported by the inner surface of the outer ring.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: May 3, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Thomas Friedrich, Stefan Keller
  • Radial foil bearing
    Patent number: 11319987
    Abstract: A radial foil bearing of the present disclosure includes a bearing housing that has an insertion hole into which a rotary shaft is inserted, a base sheet that is disposed in the insertion hole, a back foil that is supported by the base sheet and has unevenness in a radial direction of the insertion hole, and a top foil that is supported by the back foil. The base sheet has a branch deviated in the radial direction of the insertion hole, and is engaged with at least one of the bearing housing, the back foil, and the top foil.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: May 3, 2022
    Assignee: IHI CORPORATION
    Inventor: Naomichi Omori
  • Cage segment for a rolling-element bearing cage
    Patent number: 11319992
    Abstract: A cage segment is for a rolling-element bearing cage, particularly for large rolling-element bearings. The cage segment includes a first side element and a second side element that are connected by a first bridge and a second bridge. At least one pocket is formed between the first and second bridges which is suitable for receiving at least one rolling element. The cage segment is manufactured from sheet metal.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: May 3, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Berthold Beyfuss, Hans-Juergen Friedrich, Alfred Radina, Maximilian Soellner, Johannes Ullmann, Stefan Volpert
  • Rolling bearing with spring biased thrust ring, and method for measuring an axial clearance of a rolling bearing having a thrust ring
    Patent number: 11313413
    Abstract: A rolling bearing includes a first ring, a second ring, at least one row of axial rolling elements arranged between the first ring and the second ring, and at least one thrust ring axially interposed between the axial rolling elements and the first ring and delimiting a raceway for the axial rolling elements. At least one spring system axially biases the thrust ring against the axial rolling elements and includes a piston housed in a through-hole of the first ring and a spring element pressing the piston against the thrust ring. The piston includes a threaded hole accessible from outside the first ring.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: April 26, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventor: Bruno Capoldi
  • Cover assembly for bearing
    Patent number: 11306782
    Abstract: A bearing cover assembly can be assembled to a bearing housing in which a rolling element bearing is accommodated. The bearing housing assembly includes an annular adapter and an end cap that can be mated together. The annular adapter can have a tapered inner annular surface and can be inserted into the housing bore of the bearing housing. The end cap can have a corresponding outer tapered surface. When the end cap is inserted into the adapter hole defined by the annular adapter, the sliding contact between the tapered inner annular surface and the outer surface radially expands the annular adapter inside the housing bore creating a positive engagement retaining the bearing cover assembly to the bearing housing.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: April 19, 2022
    Assignee: Dodge Industrial, Inc.
    Inventors: James G. Saxon, Tyler J. Erickson, Thomas E. Kuckhoff, William G. Hewitt, Marshall C. Corbett, Matthew J. Kelly
  • Supressing vibrations of shafts using adjustable bearings
    Patent number: 11306611
    Abstract: A bearing configured to actively damp vibration of a shaft in a turbine. In one implementation, the bearing can include actuating members that move in a manner that changes properties of fluid, typically a thin film of lubricant, disposed in the bearing to facilitate rotation of the shaft. These changes effectively manipulate the stiffness and damping of the thin film according to a time periodicity that matches a parametric anti-resonance of the bearing. In turn, the resulting interaction of vibrating modes is favorable to damp vibration amplitudes at critical speeds.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 19, 2022
    Assignee: Dresser, LLC
    Inventors: Athanasios Chasalevris, Fadi Dohnal
  • Radial foil bearing
    Patent number: 11306771
    Abstract: The radial foil bearing (3, 3A, 3B, 3D) includes: a wave sheet-shaped back foil (11); and an intermediate foil (10) supported by the back foil, and the intermediate foil includes a flat portion (10b) facing a hill part (11c) of a wave sheet shape of the back foil, and a protruding part (39, 40, 40a, 40b, 40B) protruding toward the back foil via branching at a position in a circumferential direction between a top of at least one hill part and a top of a hill part adjacent to the one hill part in the wave sheet shape of the back foil.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 19, 2022
    Assignee: IHI CORPORATION
    Inventor: Naomichi Omori
  • Sliding bearing with additively-manufactured structures
    Patent number: 11300157
    Abstract: A sliding bearing for mounting a shaft with a bearing body and a bearing ring, which is formed from a multiplicity of tilting pads. The multiplicity of tilting pads and tiltably mounted on the bearing body and, with a sliding surface of the shaft, forms a lubricated bearing gap. At least one tilting pad and/or the bearing body has at least one functional structure located inside for forming a support region.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: April 12, 2022
    Assignee: MAN Energy Solutions SE
    Inventor: Hanno Wegner
  • Radial foil bearing
    Patent number: 11293482
    Abstract: A radial foil bearing includes a bearing housing which has an insertion hole through which a shaft is inserted, a back foil which is disposed on an inner peripheral surface of the insertion hole, and an engagement member which includes a first part and a second part, the first part being disposed to overlap the back foil in a radial direction of the insertion hole and engaged with the back foil, and the second part being attached to the bearing housing, in which the first part has an engagement groove which extends to an end edge of the first part in an axial direction of the insertion hole, and the back foil is disposed in the engagement groove.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: April 5, 2022
    Assignee: IHI CORPORATION
    Inventor: Naomichi Omori
  • Bearing mount apparatus
    Patent number: 11293492
    Abstract: Various bearing mount apparatuses for housing and removably retaining a bearing and a mounting adaptor both in fixed location relative to a structure are described. The bearing mount apparatus comprises a split bearing housing that has a first housing section and a second housing section removably couplable to the first housing section, the bearing being removably received within the bearing housing when the second housing section is coupled to the first housing section. The mounting adaptor comprises a first adaptor end and a second adaptor end, the first adaptor end being configured to couple the mounting adaptor to the structure and the second adaptor end being removably received within the bearing housing for coupling the mounting adaptor to the bearing housing when the second housing section is coupled to the first housing section.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: April 5, 2022
    Assignee: LML Limited
    Inventor: Darryl Shoemaker