Patents Examined by James Pilkington
  • Thrust foil bearing
    Patent number: 11454276
    Abstract: A thrust foil bearing of the present disclosure includes a base plate which includes an insertion hole through which a rotation shaft is inserted, a back foil which is disposed around the insertion hole and supported by the base plate, and a top foil which is supported by the back foil, wherein the top foil includes an expansion portion in which a width of the expansion portion in a virtual straight line direction in which a virtual straight line extends decreases in a direction orthogonal to the virtual straight line, the virtual straight line being supported by the back foil on a most downstream side in a rotation direction of the shaft.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: September 27, 2022
    Assignee: IHI CORPORATION
    Inventor: Naomichi Omori
  • Slide bearing and method for manufacturing same
    Patent number: 11448256
    Abstract: A slide bearing is made of synthetic resin and has an upper case, a lower case combined with the upper case, and an annular center plate placed between the upper case and the lower case so as to allow relative rotation between the upper case and the lower case. The center plate is integrally formed with the lower case. A joining surface of the lower case that joins to the center plate has a grip part, and the joining surface of the center plate has a grasp on the grip part.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: September 20, 2022
    Assignee: OILES CORPORATION
    Inventors: Yuta Ishii, Kouichi Morishige
  • Slide bearing and accessory using same with pivotally mounted bearing
    Patent number: 11441606
    Abstract: A slide bearing for guiding a translationally movable sliding part has a first part having a first guide surface suitable for interacting with a first sliding surface of the sliding part and a second part having a second guide surface suitable for interacting with a second sliding surface of the sliding part. The second part is movable relative to the first part. A guide part is connected to the first part so as to be movable in a first direction and a second direction. A pressure device urges the second part toward the first guide surface such that the first guide surface directly engages the first sliding surface and the second guide surface directly engages the second sliding surface.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: September 13, 2022
    Assignee: GRAMMER AG
    Inventor: Ralph Nuss
  • Blood pump bearing system with optimized geometry, materials, and manufacturing method
    Patent number: 11441601
    Abstract: A rotor bearing system includes an inner bearing component and an outer bearing component. One of the bearing components includes at least three protrusions sized to form a close running proximity to the remaining component. A bearing gap between the inner bearing component and the outer bearing component is sized to exclude the entry of red blood cells between the bearing components during operation of the rotor bearing system and causing the bearing to operate in an elasto-hydrodynamic regime of mixed- or boundary-lubrication.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: September 13, 2022
    Assignee: RBTS Inc.
    Inventors: Victor Obeid, Michael D. Neary, Edward Marlinski
  • Rapid movement loader slot bearing suitable for use on munitions deployment structures
    Patent number: 11441604
    Abstract: A loader slot bearing includes an annular housing having first and second axial surfaces and an interior area extending therebetween. The interior area has a first inner surface that extends between the first and second axial surfaces. A portion of the inner surface is a first bearing surface that has a spherical contour. A slot extends partially into the first inner surface from the first axial surface. The slot has a first width. The annular housing is manufactured from a precipitation hardened corrosion resistant stainless steel. The loader slot bearing includes a truncated ball that is positioned in the slot and rotated so that the truncated ball is rotatably retained by the first bearing surface. The truncated ball is angularly misalignable relative to the housing and is manufactured from a 440C stainless steel. A dry lubricant is applied to the spherical exterior surface of the truncated ball.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: September 13, 2022
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: Scott McNeil, Ben Anderson, Jackson Sarneski-Hayes
  • Dual-film damper
    Patent number: 11441605
    Abstract: A dual-film damper has a housing defining an annular damper fluidly connected to a source of pressurized oil. First and second damper rings are coaxially nested within the damper cavity. A first set of spacers allows for the formation of a first oil film annulus between the first and second damper rings. A second set of spacers allows for the formation of a second oil film annulus between the second damper ring and the housing. The first and second oil film annuli have a thickness-to-length ratio (T/L) selected to provide a desired damping capacity.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: September 13, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Mert Cevik, Philip A. Varney, Robert J. Morris, David Beamish
  • Rolling bearing with wire races and retaining rib
    Patent number: 11428268
    Abstract: The rolling bearing provides a first ring and second ring capable of rotating concentrically relative to one another, at least one first wire race mounted in the first ring, at least one second wire race mounted in the second ring, and at least one row of radial rollers radially interposed between raceways provided on the first and second wire races. The second ring comprises at least two guide flanges to axially retain therebetween the row of radial rollers. The first ring includes at least one retaining rib extending into the radial space that exists between the first and second rings and towards the second ring, the retaining rib protruding radially relative to the raceway of the first wire race.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 30, 2022
    Assignee: Aktiebolaget SKF
    Inventors: Herve Dondaine, Arnaud Guerard, Joshua Oliveira
  • Rolling-element bearing assembly
    Patent number: 11428269
    Abstract: A rolling-element bearing assembly includes first and second bearing rings that form a bearing interior between them and a plurality of rolling elements disposed in the bearing interior and a seal assembly for sealing the bearing interior. The seal assembly includes a seal carrier and a seal element having at least one primary seal lip for sealing the bearing interior and a secondary seal lip for sealing against external contamination. The seal element is connected to the seal carrier such that the primary seal lip and the secondary seal lip abut axially against an axial end surface of the second bearing ring.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: August 30, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Jan Kroeger, Peter Lemper, Hans-Juergen Liesegang, Klaus-Dieter Schulz
  • Electrically conductive bearings
    Patent number: 11428267
    Abstract: A bearing including a generally cylindrical sidewall including an electrically conductive substrate, and an electrically non-conductive or low-conductive sliding layer coupled to the substrate, where the generally cylindrical sidewall includes a plurality of protrusions protruding radially inward or radially outward from a bore defining a central axis, where at least one protrusion is adapted to contact an opposing component such that at a point of contact the bearing has a void area free of sliding layer so as to provide electrical conductivity between the bearing and the opposing component, and wherein at least one protrusion has a spring rate of not greater than 30 kN/mm, such as not greater than 25 kN/mm, such as not greater than 15 kN/mm, or such as not greater than 10 kN/mm.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: August 30, 2022
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS RENCOL LIMITED
    Inventors: Paul Haines, Jan Fluegge, Daniel Tobias, Martin Schwiegel, Hans-Juergen Jaeger, Florian Foerster, Emre Ulbay, Sebastian Giesen, Mehmet Usta, Jiri Zlebek, Juergen Freese, Juan Vaya Valcarce
  • Rolling component, bearing, and method of manufacturing the same
    Patent number: 11421732
    Abstract: A rolling component has a surface. The rolling component includes a fiber flow. The surface has an Ra of 0.1 ?m or less, an Rsk<0, and a compressive residual stress of 700 MPa or more. The surface and the fiber flow form an angle of 15° or more.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: August 23, 2022
    Assignee: NTN CORPORATION
    Inventors: Takahiro Okada, Takumi Fujita, Naoya Kamura, Yoshinori Sugisaki
  • Sensorized roller for a bearing having integrated energy harvesting device
    Patent number: 11415177
    Abstract: A sensorized roller for a bearing includes a bore that extends through the roller, a sensor for measuring at least one physical state of the roller bore and producing a first signal indicative of the measured physical state, a wireless transmitter for receiving the first signal from the sensor and wirelessly transmitting a second signal based on the first signal, and a generator configured to be rotated by a movement of the roller, the generator being electrically connected to the sensor. The measuring unit, the wireless transmitter and the generator are located inside the bore.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 16, 2022
    Assignee: AKTIEBOLAGET SKF
    Inventors: Nicolaas Simon Willem Den Haak, Andreas Clemens van der Ham
  • Shaft bearing device with a lifting device
    Patent number: 11415142
    Abstract: A shaft bearing device for a pump includes an antifriction bearing, which can be connected to an axially displaceable pump shaft. A spring is arranged at the antifriction bearing in such a way, that a spring force can be transmitted to an outer ring of the antifriction bearing by the spring in a mounting condition of the shaft bearing device. A lifting element attached to the pump shaft and a corresponding counter element are separated from each other by the spring force in a starting state and/or in a shutdown state of the pump.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: August 16, 2022
    Assignee: SULZER MANAGEMENT AG
    Inventors: Andreas Wild, Nicolas Lagas
  • Thrust foil bearing
    Patent number: 11408466
    Abstract: A thrust foil bearing of this disclosure includes: a base plate provided with an insertion hole through which a rotation shaft is inserted; a corrugated bump foil placed around the insertion hole and supported by the base plate; and a top foil which is supported by the bump foil, and in which one side in a circumferential direction of the insertion hole is attached to the base plate and the other side in the circumferential direction of the insertion hole is a free end, and in the thrust foil bearing, a bent portion which is bent toward the base plate is formed on the other side of the top foil in the circumferential direction.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 9, 2022
    Assignee: IHI CORPORATION
    Inventor: Naomichi Omori
  • Housing element with axially movable bearing unit
    Patent number: 11401969
    Abstract: A housing element having a casing provided with a cylindrical seat, a bearing unit located inside the cylindrical seat of the casing, a metal ring arranged between the casing and the bearing unit and provided with a spherical seat. The metal ring is assembled inside the cylindrical seat of the casing and is axially movable along the cylindrical seat. The bearing unit is coupled with the metal ring by its spherical seat and is axially movable together with the metal ring. The metal ring is provided with a first groove, which is radially external, and a first radial hole in fluid communication with the first groove so as to allow a supply of grease to the bearing unit.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: August 2, 2022
    Inventors: Fausto Baracca, Andrea A. Bertolini, Fabio Falaschi, Pasquale Frezza
  • Expandable stacked thrust bearing assembly
    Patent number: 11396909
    Abstract: A double row axial roller bearing assembly includes a compressible ring between the two rows. This compressible ring prevents excessive axial forces if the respective shafts impact one another after becoming axially separated. One embodiment is fully unitized such that all parts of the bearing assembly remain with one of the two shafts if the shafts become axially separated. Another embodiment is semi-unitized such that one row of rollers and the compressible ring remain with one of the shafts while the other row of rollers remains with the other shaft. In both cases, all bearing components are prevented from falling out of position such that they return to their proper axial and radial position when the shafts come back together.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 26, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Dennis Roffe, James Brown
  • Bearing arrangements, transmission assemblies, and methods of making bearing arrangements for transmission assemblies
    Patent number: 11396911
    Abstract: A bearing arrangement includes a rotary member, a bearing, and a clamp member. The rotary member is arranged along a rotation axis and has a collar portion, the collar portion extending radially outward from the rotary member. The bearing extends about the rotary member and axially abuts the collar portion, the bearing arranged to support the rotary member for rotation about the rotation axis. The clamp member is seated on the rotary member and on a side of the bearing opposite the collar portion, the clamp member urging the bearing axially toward the collar portion to axially fix the bearing relative to the rotary member. Transmission assemblies and methods of making bearing arrangements are also described.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: July 26, 2022
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Prasad Sunilrao Mahajan
  • Rolling bearings having an integrated current-removal function
    Patent number: 11384793
    Abstract: A rolling bearing for rotatably supporting a shaft has an inner ring with a first raceway for a rolling body, an outer ring with a second raceway for a rolling body, and rolling bodies which are arranged between the raceways of the bearing rings. At least two plates are fastened to a first of the bearing rings, wherein an electrically conducting element is arranged between the two plates, which electrically conducting element lies against the respective other bearing ring or a component which is connected to the respective other bearing ring.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: July 12, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Alexander Schamin
  • Axial rolling bearing
    Patent number: 11378127
    Abstract: An axial rolling bearing consisting of at least one annular bearing disc which has a circumferential raceway arched in profile cross section, and consisting of a multiplicity of rolling elements formed as bearing needles or bearing rollers and arranged next to one another in a circular form, which roll on the raceway of the bearing disc and are kept at uniform distances from one another by a bearing cage. The arched raceway is formed having at least one circumferential groove-shaped depression at least in the region of one of the two ends of the rolling elements.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: July 5, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Wolfgang Fugel, Wolfram Kruhöffer
  • Rolling component, bearing, and method of manufacturing the same
    Patent number: 11371559
    Abstract: A rolling component has a surface. The rolling component includes a fiber flow and a non-metallic inclusion. In a region from the surface of the rolling component to a first depth, a gap between the non-metallic inclusion and a member forming the rolling component is filled. The first depth is 50 ?m or more. The surface and the fiber flow form an angle of 15° or more.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 28, 2022
    Assignee: NTN CORPORATION
    Inventors: Takahiro Okada, Naoya Kamura, Takumi Fujita
  • Device for centring and rotationally guiding a turbomachine shaft comprising means for an axial retention of outer ring of a bearing
    Patent number: 11371435
    Abstract: A device for centring and rotationally guiding a turbomachine shaft, including a rolling bearing including an outer ring, a bearing mount, a band interposed between the outer ring and the bearing mount and a device for connecting the outer ring to the bearing mount, including a device for the axial retention of the outer ring including an axial thrust flange downstream of and in contact with the fixing flange of the connecting device, and including a fixing hole for fixing together the fixing flange, the bearing mount and the axial thrust flange, which latter further includes a lug extending between two successive tabs of the elastically deformable device.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: June 28, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Arnaud Bessy, Laurent Leeder