Patents Examined by Tran Nguyen
  • Patent number: 12378997
    Abstract: An inner-ring-fastened roller sleeve includes an inner ring and a roller-and-cage assembly. The inner ring is arranged for fastening on a shaft or axle and includes an outer lateral surface with an inner raceway, and first and second flanges extending radially outwards. The second flange includes a larger outer diameter than the first flange and an edge region bent axially towards the first flange. The roller-and-cage assembly is disposed on the inner ring and guided by the first flange and the second flange. The roller-and-cage assembly includes a bearing cage formed as an axially slotted plastic cage and a plurality of roller-type rolling elements inserted into the bearing cage and arranged to roll on the inner raceway. The bearing cage includes a first side ring radially surrounded by the edge region to fix the roller-and-cage assembly in the inner ring, a second side ring, and a plurality of connecting webs.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 5, 2025
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Wächtler, Robert Dressel, Alfred Hock
  • Patent number: 12352314
    Abstract: An air turbine starter (ATS) for starting an engine, having a stator including a housing having an inlet, an outlet, and a flow path extending between the inlet and the outlet and a rotor including a turbine member defining a rotating axis and having a set of blades at least partially disposed within the flow path. The ATS further including a bearing support structure disposed between the rotor and the stator comprising a first bearing support having a first stiffness (K1) and a second bearing support having a second stiffness (K2).
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: July 8, 2025
    Assignee: Unison Industries, LLC
    Inventors: Pallavi Tripathi, Subrata Nayak, Ramana Reddy Kollam, Sharad Pundlik Patil, Milind Chandrakant Dhabade, Narendra Dev Mahadevaiah, Ravindra Shankar Ganiger
  • Patent number: 12352311
    Abstract: A ball bearing includes an outer race; an inner race including having a through hole, a first end, and an outer surface; a plurality of balls rotatably disposed between the inner race and the outer race; a washer including an inner surface attached to the outer surface of the inner race; and a welding bead formed at a joining portion of the inner surface of the washer and the first end of the inner race to secure the washer to the inner race. A number of embodiments are provided.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: July 8, 2025
    Assignee: Accuratech Automation CO., LTD.
    Inventor: Yu Min Su
  • Patent number: 12352310
    Abstract: A plastic cage consists of two side rings that have a common axis of rotation and are axially spaced apart from one another, and a plurality of cage webs that connect the side rings to one another and between which pockets are formed for receiving rolling elements, wherein the plastic cage is axially slotted at at least one peripheral location by a parting line which defines a first cage end and a second cage end and at the boundary surfaces of which mutually corresponding closure elements are located, by means of which the first and second cage ends can be fixed relative to one another both in the axial and radial direction and in the peripheral direction.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: July 8, 2025
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Wächtler, Robert Dressel, Alfred Hock
  • Patent number: 12326173
    Abstract: To provide a rolling bearing and a rotating device which can reduce problems due to creep or the like, and a method for manufacturing a rolling bearing. A rolling bearing includes: an inner ring and an outer ring disposed coaxially with each other; and a rolling element disposed between the inner ring and the outer ring. A coating film is formed on at least one of an inner circumferential surface of the inner ring and an outer circumferential surface of the outer ring, and the coating film contains a mixture of calcium sulfonate and calcium carbonate or a compound obtained from calcium sulfonate and calcium carbonate.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: June 10, 2025
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Akihiro Iino, Takayuki Kosaka, Keisuke Abo
  • Patent number: 12313041
    Abstract: A fluid film bearing, includes a first and second part, wherein the first part includes at least two annular sliding surfaces, wherein the second part includes a respective group of pads for each of the annular sliding surfaces, wherein a respective pad sliding surface of each pad in a respective group supports the respective annular sliding surface, wherein the pads of each group are distributed in the circumferential direction along the second part, wherein at least one pad of a selected one of the groups is arranged such that spacing of the pads in the selected group along the circumference is irregular and/or wherein the selected or a selected one of the groups includes two different types of pads and/or wherein the pads of the or a selected one of the groups are offset in the circumferential direction with respect to the pads of a further one of the groups.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: May 27, 2025
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Alejandro Cerda Varela, Niels Karl Frydendal, Kim Thomsen, Morten Thorhauge
  • Patent number: 12297866
    Abstract: A follower bearing 1 includes: a shaft 30 having an outer peripheral surface including an annular first raceway surface 11; an outer ring 60 having an inner peripheral surface including an annular second raceway surface 41 facing the first raceway surface 11; and a plurality of rollers 70 disposed on an annular raceway along the first raceway surface 11 and the second raceway surface 41 to be in contact with the first raceway surface 11 and the second raceway surface 41. The outer ring 60 includes an annular first member 40 made of steel and an annular second member 50 made of a resin and covering outer peripheral surfaces 44A and 44B of the first member 40. The first member 40 includes a cylindrical portion 42 having a hollow cylindrical shape and including the second raceway surface, and a projection 43 extending radially outward from the cylindrical portion 42. Ends of the projection 43 in the axial direction are filled with the second member 50.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: May 13, 2025
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventor: Tomoaki Nakamura
  • Patent number: 12292081
    Abstract: A ball bearing includes an inner ring, an outer ring, a plurality of balls rollably disposed between an inner ring raceway surface of the inner ring and the outer ring raceway surface of the outer ring, and a cage in which pockets rollably holding the balls are formed at intervals in a circumferential direction. An inclination angle of a cylindrical surface of each of the pockets is set more than 0° and less than a contact angle of the ball bearing, the cylindrical surface and a corresponding ball are in contact with each other at an inner side in a cage thickness direction relative to a position where a rotation axis of the ball intersects with the cylindrical surface, and a space is formed at a portion from a contact position to a circumferential surface of the cage on a side closer to the intersection position.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: May 6, 2025
    Assignee: NSK LTD.
    Inventors: Hironori Suzuki, Takuya Oyama
  • Patent number: 12289021
    Abstract: A shunt assembly for a bearing configuration is disclosed herein. The shunt assembly includes a mesh layer that provides electric contact between a first and second conductive component. The mesh layer can be secured against one of the conductive components via application of a preload, which can be achieved by a spring, O-ring, or other element.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: April 29, 2025
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Guihui Zhong
  • Patent number: 12287009
    Abstract: A rolling bearing apparatus includes a rolling bearing, a seal, first and second machine elements and a bypass apparatus. The rolling bearing includes a concentrically arranged first bearing ring and second bearing ring, and rolling elements arranged radially between the first bearing ring and the second bearing ring. The seal is arranged radially between the first bearing ring and the second bearing ring, and the second bearing ring is installed in the first machine element. The bypass apparatus forms an electrical connection between the first machine element and the second machine element. The bypass apparatus includes an electrically conductive bypass line and a holder connected to the electrically conductive bypass line in an electrically conductive manner. The holder is fastened to the second bearing ring radially between the second bearing ring and the first machine element.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 29, 2025
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Alexander Schamin, Sebastian Giehl
  • Patent number: 12270436
    Abstract: A follower bearing 1 includes: a shaft 30 having an outer peripheral surface including an annular first raceway surface 11; an outer ring 60 having an inner peripheral surface including an annular second raceway surface 41 facing the first raceway surface 11; and a plurality of rollers 70 disposed on an annular raceway along the first raceway surface 11 and the second raceway surface 41 to be in contact with the first raceway surface 11 and the second raceway surface 41. The outer ring 60 includes an annular first member 40 made of steel and an annular second member 50 made of a resin and covering outer peripheral surfaces 44A and 44B of the first member 40. The first member 40 includes a cylindrical portion 42 having a hollow cylindrical shape and including the second raceway surface, and a projection 43 extending radially outward from the cylindrical portion 42. Ends of the projection 43 in the axial direction are filled with the second member 50.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: April 8, 2025
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventor: Tomoaki Nakamura
  • Patent number: 12264704
    Abstract: A foil journal bearing, having: a shaft; a top foil surrounding the shaft in a circumferential direction; a corrugated bump foil surrounding the top foil in the circumferential direction, wherein the corrugated bump foil includes a plurality of adjacent corrugations that each include sidewalls that extend from a radial inner end to a radial outer end of the corrugated bump foil; and a bearing sleeve surrounding the corrugated bump foil, wherein: at least one of the sidewalls of at least one of the corrugations includes an undulation disposed between the outer and inner radial ends of the sidewall; and the undulation is defined by an undulation outer end and an undulation inner end.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: April 1, 2025
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark R. Gurvich, Ali Shakil, Viktor Kilchyk
  • Patent number: 12264725
    Abstract: A device for transmitting torque and axially securing a first torque-transmitting component (1) and a second torque-transmitting component (2) is provided. The first component (1) includes axially projecting first projections (3) distributed over the circumference and have first gaps (4) arranged therebetween. The second component (2) includes radially projecting second projections (5) having second gaps (6) arranged therebetween. Each second projection (5) on the second component (2) protrudes into a respective first gap (4) in the first component (1). At least two of the second projections (5) include a section (8) that projects axially in the direction of the first component (1) and is configured in each case such that, when the device is installed, the section rests axially via an end face (9) against the first component (1).
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: April 1, 2025
    Assignee: ZF Friedrichshafen AG
    Inventors: Hagen Doepfert, Matthias Reisch
  • Patent number: 12259002
    Abstract: A thrust air bearing includes a plurality of foil units arranged in a circle. Each foil unit includes a top foil portion, and a bump foil portion integrally provided with the top foil portion and disposed opposite the top foil portion in a circumferential direction forming the circle. The foil unit is disposed such that the top foil portion lies on top of the bump foil portion of another adjacent foil unit.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: March 25, 2025
    Inventor: Koji Sakota
  • Patent number: 12247617
    Abstract: A journal bearing for a gear driven pump includes a bearing body having a bearing body circular opening that defines a bearing surface along a length of the bearing body and a face plate adjacent to the bearing surface. The bearing surface is configured to carry a gear shaft load through a hydrodynamic fluid film pressure between a load surface of a gear shaft and the bearing surface. The bearing surface is formed from a leaded bronze material and the face plate is formed from a copper-nickel alloy.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: March 11, 2025
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark W. Shoemaker, Ryan Shook
  • Patent number: 12241505
    Abstract: A support assembly for moving shafts, comprising a bearing unit positioned in a casing, and a cover for fluid sealing the casing. The support assembly comprises double level of protection provided by two distinct sealing devices that keep the bearing unit protected from washing liquid even in the most demanding conditions of use. The better sealing configuration aids in overall better sealing of the bearing unit; greater resistance to contaminants; and improving the sealing performance of the whole support assembly.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: March 4, 2025
    Assignee: AKTIEBOLAGET SKF
    Inventors: Andrea A. Bertolini, Fausto Baracca, Fabio Cavacece
  • Patent number: 12234860
    Abstract: Provided is a foil air bearing having a herringbone pattern to sustain a load of a rotor rotating in a predetermined rotation direction around a center line, the foil air bearing including an upper top foil disposed to face a surface of the rotor, a middle top foil disposed under the upper top foil, a lower top foil disposed under the middle top foil, a bump foil provided as an elastically deformable member and disposed under the lower top foil, and a plurality of slots provided as holes penetrating from an upper surface to a lower surface of the middle top foil, and extending along a lengthwise direction forming a predetermined angle with a rotation direction of the rotor, wherein the upper top foil is deformed in a downward concave shape at locations corresponding to the slots due to air pressure generated by rotation of the rotor.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: February 25, 2025
    Inventor: Kyeong Su Kim
  • Patent number: 12215773
    Abstract: An automatic transmission (1) includes a transmission housing, a hydrodynamic torque converter (5), a first brake, a second brake, an intermediate plate (6) fixedly connected to the transmission housing and with ducts for supplying the hydrodynamic torque converter (5) and the two brakes (A, B) with oil. An oil guide shell (7) is arranged between the hydrodynamic torque converter (5) and the intermediate plate (6). Oil coming from the two brakes sinks via oil ducts (39.1, 39.2, 39.3) in the transmission housing and the intermediate plate (6) via the inflow opening (40) in the oil guide shell (7). The hydrodynamic torque converter (5), via rotation, conveys the oil to the elevated oil ejection opening in the oil guide shell (7), from where the oil sinks into the tank (8) via a gap (52) delimited by the oil guide shell (7) and the intermediate plate (6).
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: February 4, 2025
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Riedisser, Gabriele Glade, Julia Baumann, Stephan Stroph, Andreas Knörle-Philipp, Jan Göbel, Peter Reinders, Martin Kibler, Hans-Peter Bock, Florian Lanz, Juergen Stauber, Rudolf Raedler
  • Patent number: 12215741
    Abstract: A guide device includes a track member and a moving member with rolling elements interposed therebetween. A lubricating path is formed in the moving member for supplying lubricant to a circulation path for the rolling elements. The lubricating path has a common path including an inlet portion that serves as a supply port for the lubricant, a first path through which grease flows, and a second path through which lubricating oil flows. A cross-sectional area of the second path is smaller than a cross-sectional area of the first path, and in the common path, a second communication portion of the second path is located closer to the inlet portion than a first communication portion of the first path. Further, the guide device includes a plug member for blocking the inlet portion of the common path, the plug member being removable and able to be moved within the common path.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: February 4, 2025
    Assignee: THK CO., LTD.
    Inventors: Hiroyoshi Yasutake, Ryuji Furusawa, Ryunosuke Ozeki, Ryosuke Maruki
  • Patent number: 12180996
    Abstract: A bearing includes a washer and a retention band. The washer includes an annular portion, a cylindrical outer flange, and a radius portion connecting the outer portion to the flange. The retention band includes a cylindrical ring disposed radially inside of the cylindrical outer flange, and a tab extending radially outward from the cylindrical ring. In an example embodiment, the tab extends radially outside of the washer. In some example embodiments, the cylindrical ring has a split. In an example embodiment, the split is circumferentially offset from the tab. In an example embodiment, the retention band also includes an axial leg connecting the tab to the cylindrical ring. In an example embodiment, the retention band has exactly one tab. In an example embodiment, the retention band has a plurality of circumferentially spaced tabs.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: December 31, 2024
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: James Brown, Charles Schwab, Steven Corn