Patents Examined by Marcus Charles
  • Patent number: 10851838
    Abstract: Disclosed are bearing assemblies including a compliant layer within a mounting socket for reducing wear of the bearing.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: December 1, 2020
    Assignee: TRITON SYSTEMS, INC.
    Inventors: Tyson Lawrence, Bryan Andrew Smith
  • Patent number: 10851832
    Abstract: A rotary gear box for a rotary drill rig having a rotary joint that includes a first conduit having a first end portion defining an exit, a second conduit having a second end portion defining an inlet, and a sealing arrangement positioned radially between the first end portion of the first conduit and the second portion of the second conduit. The second conduit is rotatable relative to the first conduit and is arranged coaxial with the first conduit. The first end of the first conduit is received within the second end of the second conduit such that the exit of the first conduit is downstream from the sealing arrangement.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 1, 2020
    Assignee: Caterpillar Inc.
    Inventors: Adam J. Johnson, Forrest Foster
  • Patent number: 10844745
    Abstract: There is disclosed a bearing assembly for a gas turbine engine. The bearing assembly has a central axis and includes at least two bearings being axially spaced from one another relative to the central axis and configured to rotatably support a rotating component of the gas turbine engine. A bearing housing includes bearing supports supporting the at least two bearings. The bearing housing is securable to a casing of the gas turbine engine via hairpin structures being axially spaced from one another.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 24, 2020
    Inventors: Guy Lefebvre, Remy Synnott
  • Patent number: 10844746
    Abstract: There is disclosed a bearing assembly for a gas turbine engine including at least two bearings axially spaced from one another relative to a central axis, and a squirrel cage secured to a casing of the gas turbine engine. The squirrel cage supports respective bearing loads of the at least two bearings. The squirrel cage has a frangible section between the bearings configured to preferentially fail upon application of a load greater than a preselected threshold bearing load.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 24, 2020
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Guy Lefebvre, Remy Synnott, François Doyon
  • Patent number: 10837487
    Abstract: A bearing assembly is disclosed. The bearing assembly includes a first race. Further, the bearing assembly includes a second race disposed concentric to the first race, where the second race has a radius that changes along an axial length of the bearing assembly. The bearing assembly also includes a housing disposed around the second race and operatively coupled to the second race. Moreover, the bearing assembly includes a plurality of support structures configured to detachably couple the second race to the housing, where the plurality of support structures are configured to disengage the second race from the housing to allow motion of the second race when a torque on the second race is greater than a threshold torque value.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 17, 2020
    Assignee: Transportation IP Holdings, LLC
    Inventors: Mandyam Rangayan Sridhar, Ravindra Shankar Ganiger, Dinesh R. Rakwal, Ajith Kuttannair Kumar, Bret Dwayne Worden
  • Patent number: 10837490
    Abstract: Provided is a bearing retainer (1) which has excellent oil resistance and impact resistance. The bearing retainer (1) retains a plurality of balls in such a manner that the balls are apart from each other. In a ball screw that is provided with a first member and a second member which moves relatively to the first member, the plurality of balls is arranged on one of the first member or the second member so as to be in contact with both of the first member and the second member, and rolling of the balls enables the relative movement. This bearing retainer (1) is formed from a resin composition that contains an elastomer component and a fluororesin which is mainly composed of vinylidene fluoride.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: November 17, 2020
    Assignees: KUREHA GOHSEN CO., LTD, THK CO., LTD.
    Inventors: Masahiro Kawasaki, Daisuke Mimori, Yasuaki Takaiwa, Kenichi Saitoh
  • Patent number: 10830276
    Abstract: A bearing assembly including a chamber provided with a rolling bearing supporting a rotary shaft with respect to a fixed housing. The rolling bearing has a first ring and a second ring in relative rotation one each other, at least one row of rolling elements being arranged between the rings. The chamber having Ethanol in liquid and/or gaseous state. The rings are coated with diamond-like carbon (DLC) material.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 10, 2020
    Assignee: Aktiebolaget SKF
    Inventors: Samuel Viault, Benoît Hauvespre, Michael Wahler
  • Patent number: 10823278
    Abstract: A silk hat-type strain wave gear device has a crossed roller bearing for supporting an internal gear and an external gear so as to allow relative rotation. A first gap part between the inner and outer rings of said bearing is sealed by an oil seal and a second gap part thereof is in communication with a gear-side gap part on the outside of the external gear. A bearing seal separates the second gap part from the gear-side gap part. The bearing seal prevents excessive inflow of lubricant from the gear-side gap part into the second gap part. Excess lubricant that has flowed into the bearing can flow back from the second gap part to the gear-side gap part. Excess lubricant in the bearing is prevented from leaking through the oil seal to the outside.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: November 3, 2020
    Assignee: Harmonic Drive Systems Inc.
    Inventors: Shunichi Tezuka, Yoshihide Kiyosawa, Toshimi Yamagishi
  • Patent number: 10823225
    Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 3, 2020
    Assignee: Delta Electronics, Inc.
    Inventors: Cheng-Hsien Yeh, Chih-Wei Chan
  • Patent number: 10823228
    Abstract: A hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radial inner end of the shaft extension, a radial outer end of the shaft extension fixedly coupled to a rotatable race of a bearing supporting the rotatable member, and a recoupler device formed of a shape memory alloy (SMA) material coupled in parallel with at least a portion of the shaft extension between the radial inner end and the radial outer end.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Shuvajyoti Ghosh, Shivaram Ac, Akash Joshi, Vidya Lokammanahalli Shivashankar
  • Patent number: 10816033
    Abstract: A bearing structure includes a plurality of wave-shaped grooves and an inner surface. The wave-shaped grooves are formed on the inner surface for receiving a lubricating fluid. Each of the wave-shaped grooves extends along a longitudinal axis of the bearing structure. Each of the wave-shaped grooves includes a first peak section, a second peak section, two first connecting sections, two second connecting sections and a trough section. The two first connecting sections are connected to opposite sides of the first peak section, and the two second connecting sections are connected to opposite sides of the second peak section. The trough section is disposed between the first peak section and the second peak section, and the trough section is connected to one of the first connecting sections and one of the second connecting sections. The first and second peak sections and the trough section have a circular arc structure.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: October 27, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Ching-Hsien Yeh, Chih-Wei Chan
  • Patent number: 10816037
    Abstract: A seal member for a linear guide including a guide rail and slider movably set on the guide rail through rolling elements, the seal member, attached to the slider, configured to seal an opening of a gap between the guide rail and slider, the seal member includes: fibers having been impregnated with rubber or resin, wherein a sliding contact part of said seal member, which is in sliding contact with the guide rail, is made of the fibers.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 27, 2020
    Assignees: NITTA CORPORATION, THK CO., LTD.
    Inventors: Takehito Dei, Yoji Ishizaki, Yoshiharu Kiyohara, Kenichiro Aoki, Yasuhiro Aoki
  • Patent number: 10815831
    Abstract: Embodiments of a frequency independent damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. The support spring includes a plurality of flexible elements coupled to the damper housing and disposed radially outward of the first primary damper cavity and the second primary damper cavity. The support spring defines a first accumulator cavity and a second accumulator cavity. A flow-through channel couples the first accumulator cavity to the second accumulator cavity. A gas bearing including the frequency independent damper assembly is disclosed.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventor: Bugra Han Ertas
  • Patent number: 10816035
    Abstract: Embodiments of a damper assembly are disclosed. In some embodiments, the damper assembly includes a damper housing, a damper plunger and a support spring. The damper plunger is disposed at least partially within the housing and movable within to define a first primary damper cavity and a second primary damper cavity. A damper cavity restrictive clearance is defined between the first primary damper cavity and the second primary damper cavity. The damper cavity restrictive clearance includes an elliptical damper orifice having a major-axis and a minor-axis at a mid-plane of the damper cavity restrictive clearance and is oriented perpendicular to a direction of a vibrational force imposed on the damper assembly.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventor: Bugra Han Ertas
  • Patent number: 10807158
    Abstract: A bearing block for holding a bearing for a roller, in particular a strand-guiding roller in a strandguiding device. The bearing block is designed as a solid casting having an integrated internal coolant channel. The coolant channel has an inlet and an outlet for coolant. In order to enable an improvement in the product quality of the cast slabs, the bearing block has a rotational speed sensor for sensing the rotational speed of the roller.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 20, 2020
    Assignee: SMS GROUP GMBH
    Inventors: Robert Banse, Markus Reifferscheid
  • Patent number: 10808753
    Abstract: A method and an apparatus includes a static engine structure, at least one shaft that rotates relative to the static engine structure, and a bearing assembly that supports the shaft. The bearing assembly includes at least one first bearing hard mounted directly between the shaft and the static engine structure and at least one second bearing mounted between the shaft and the static engine structure. The at least one second bearing includes a damper. Also included is at least one third bearing that is mounted between the shaft and the static engine structure, wherein the at least one third bearing includes a resilient member.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 20, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: William G. Sheridan, Todd A. Davis
  • Patent number: 10808752
    Abstract: In an exemplary embodiment, a sliding member includes sliding faces S configured to slide in relation to one another, at least one sliding face 5 of the sliding faces being provided with a plurality of dimples 11 having multi-sided shapes whose edges are formed without interruption. A pair of the edges A1-B1, A1-C1 of each of the multi-sided dimples 11, extending radially on opposite sides of a radial axis R of the sliding member, are sloped to become farther apart as they extend toward a high-pressure fluid side, and an edge B1-C1, which connects end points B1, C1 on the high-pressure fluid side of the pair of the edges, is formed such that its length is not greater than the lengths of the pair of the edges A1-B1, A1-C1. The sliding member can reduce friction between the sliding faces and improve sealing performance regardless of the direction of rotation.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 20, 2020
    Assignee: EAGLE INDUSTRY CO., LTD
    Inventor: Masatoshi Itadani
  • Patent number: 10801549
    Abstract: An axial load management system for a turbomachine including a rotating drivetrain, a thrust bearing assembly, a sensor, and a valve supply line. The rotating drivetrain includes a compressor section and an expander section fluidly coupled together by a closed flowpath. The thrust bearing assembly includes a thrust runner, a thrust bearing housing, and a gas thrust bearing extending between the thrust runner and the thrust bearing housing. Further, the gas thrust bearing supports the rotating drivetrain. The sensor is attached to at least one of the thrust bearing housing or the gas thrust bearing. The valve supply line is fluidly coupled to the closed flowpath. A valve positioned within the valve supply line selectively allows a working fluid to flow between the closed flowpath and a thrust chamber defined by a rotating surface and a fixed surface to modify an axial load on the rotating drivetrain.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 13, 2020
    Assignee: General Electric Company
    Inventors: Bugra Han Ertas, Douglas Carl Hofer, Younkoo Jeong
  • Patent number: 10801547
    Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 13, 2020
    Assignee: LG Electronics Inc.
    Inventors: Eunji Hwang, Sunggi Kim, Hangjin Ban, Donghan Kim, Byungjik Kim
  • Patent number: 10801543
    Abstract: A radial bearing arrangement of an exhaust gas turbocharger for mounting a shaft in a bearing housing is disclosed. The radial bearing arrangement comprises a radial bearing bush arranged between the shaft and the bearing housing, wherein the radial bearing bush features a radially outwardly projecting collar, which interacts in the axial direction with an axial stop on the bearing housing. The geometry of the radially outwardly projecting collar is interrupted by cut-outs, such that a force acting on the collar as a result of an oil feed pressure is minimized, and wherein the radial bearing bush is configured such that a lubricating film can form between an end surface of the radial bearing bush and a counterpiece arranged on the shaft.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 13, 2020
    Assignee: ABB Schweiz AG
    Inventors: Bruno Ammann, Christian Kreienkamp, Antje Hertel, Philippe Achtnich