Backlash Take-up Patents (Class 74/409)
  • Patent number: 11209074
    Abstract: A lower attachment system for a trimmable horizontal stabiliser actuator (THSA) includes a screwshaft forming a part of or coupled to a main screw of the actuator, the screwshaft having an axial direction and a primary ballnut disposed on the screwshaft and forming a part of a primary load path of the lower attachment system. The THSA also includes a lower secondary nut and an upper secondary nut as well as a secondary connection arranged for axial and rotational movement and coupled to each of the lower secondary nut and the upper secondary nut. The secondary connection is arranged to be loaded when the secondary load path is loaded and the secondary load path also includes the upper and lower secondary nuts.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 28, 2021
    Assignee: GOODRICH ACTUATION SYSTEMS SAS
    Inventors: Raphael Medina, Anh-Vu Abdul-Bari
  • Patent number: 11198466
    Abstract: A rack and pinion steering system includes a rack housing, a rack bearing, and an adjuster plug. The rack housing defines a rack housing bore extending along an axis. The rack bearing is disposed within the rack housing bore. The rack bearing has a first bearing portion that is biasingly connected to a second bearing portion. The first bearing portion and the second bearing portion extend along the axis between a first rack bearing end and a second rack bearing end. The adjuster plug is disposed within the rack housing bore. The adjuster plug extends along the axis between a first adjuster plug end that engages the second rack bearing and a second adjuster plug end.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: December 14, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: John M. Feldpausch, Fred N. Golda, Robert J. Bromberek, Ryan D. Harris
  • Patent number: 11149840
    Abstract: The invention concerns a process for the assembly of an epicyclic or planetary gear train of a planet gear carrier comprising one or more bores, each of the bores being intended to receive a pivot (18), the process comprising the following steps: a) manufacturing of at least one pivot (18) comprising a real axis (46) distinct from a theoretical axis; b) measuring the position of a real axis of each of said one or more bores of the carrier; c) for each bore of the carrier, mounting a pivot (18) in said bore and orienting it angularly so that the eccentricity of the pivot (18) at least partially makes up for the eccentricity of said bore.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: October 19, 2021
    Assignee: SAFRAN TRANSMISSION SYSTEMS
    Inventors: Clément Paul René Niepceron, Boris Pierre Marcel Morelli, Adrien Louis Simon
  • Patent number: 11148283
    Abstract: A servo includes a housing, and a motor, a reduction gear drive mechanism, an output shaft, a position sensor and at least two stages of transmission gear. The reduction gear drive mechanism is connected with motor and the output shalt of the servo, the reduction gear drive mechanism used to transmit power from the motor to the output shaft of the servo. A head stage of the transmission gear is located on a tail end of the output shaft of the servo, and the position sensor is located at an axis of a tail stage of the transmission gear. The at least two stages of transmission gear transmit a rotation angle of the output shaft of the servo to the position sensor by a ratio of 1:1, the position sensor is not arranged coaxially with the output shaft of the servo.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: October 19, 2021
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Jianli Chen, Youjun Xiong, Hongyu Ding, Jianxin Pang
  • Patent number: 11117236
    Abstract: Disclosed is a rotary indexing table (10) having an output flange (12) which is suitable for receiving a workpiece, mounted on a housing (14) of said rotary indexing table (10) for rotation about an axis of rotation (A) and drivingly connected to at least one drive element (24) which engages a driving groove (22) in a cylindrical cam (20) which can be driven by a motor, the cylindrical cam (20) being disposed asymmetrically to the axis of rotation (A) of the output flange (12).
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 14, 2021
    Inventors: Stefan Bauer, Dominik Goisser, Thomas Andres
  • Patent number: 11118671
    Abstract: The invention concerns a process for the assembly of an epicyclic or planetary gear train from at least one pivot (18) and a planet gear carrier (20) comprising one or more bores, each of said bores being intended to receive a pivot (18), the process comprising the following steps: a) measuring the position of a real axis of each of said at least one pivot (18) and of said one or more bores of carrier (20); b) dividing each of said pivots (18) into n angular sectors i1 . . . iq . . . in extending about the theoretical axis of said pivot and dividing each of said holes of the carrier (20) into k angular sectors j1 . . . jl . . .
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: September 14, 2021
    Assignee: SAFRAN TRANSMISSION SYSTEMS
    Inventors: Adrien Louis Simon, Clément Paul René Niepceron
  • Patent number: 11092213
    Abstract: A gear mechanism including: a pair of housings that are combined in a positioned state by mating a cylindrical inner surface and a cylindrical outer surface centered on a first axis with each other; two first gears that are attached to one housing so as to be rotatable about the first axis and a second axis parallel to the first axis; and two second gears that are rotatably attached to the other housing, and that are respectively engaged with the two first gears in a state in which the pair of housings are combined. The first gear that is attached so as to be rotatable about the second axis and the second gear that is engaged with the first gear are arranged at positions where an inter-axial distance therebetween is changed by means of a relative rotation of the housings about the first axis.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: August 17, 2021
    Assignee: FANUC CORPORATION
    Inventor: Genki Miyazaki
  • Patent number: 11066873
    Abstract: A slat angle adjustment mechanism adapted for use with slats of a Venetian blind includes a body shell and a transmission unit. The transmission unit includes a transmission gear set and a retractable member. The transmission gear set has a gear and a screw. A position-limiting hole of the gear corresponds in position to a second through hole of the body shell. The retractable member connects to the extendible segment of the screw and undergoes reciprocating motion along the extendible segment of the screw. Pulling the retractable member from an initial first position of the extendible segment of the screw to a second position of the extendible segment of the screw allows a rib of the body shell to be confined to a limiting portion of the retractable member. Therefore, the slat angle adjustment mechanism is capable of extension, retraction, engagement and fixation.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 20, 2021
    Assignees: CHING FENG HOME FASHIONS CO., LTD.
    Inventor: Wei-Shun Hong
  • Patent number: 11059135
    Abstract: A reconfigurable machining center includes a base structure extending in a first direction, a movable crossmember movable in the first direction and provided with a machining head, supporting elements on the base structure to enable movement of the movable crossmember along the first direction, a first leadscrew rack, integral with the base structure and having a first helical circular toothed sector, and extending along the entire base structure parallel to the first direction, and a first screw rotatably coupled to the movable crossmember and engaging a corresponding first leadscrew rack, and having a rotation axis parallel to the first direction. The longitudinal extension of the base structure in the first direction is an integer multiple of the pitch of tooth of the leadscrew racks, and the base structure includes coupling elements adapted to couple the base structure to a following and/or preceding adjacent base structure along the first direction.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 13, 2021
    Inventors: Alessandro Arturo Bruzzone, Margherita Monti, Andrea Godani
  • Patent number: 11047471
    Abstract: A hydraulic type scissors gear removes factors that generate a backlash due to reduction of tension of existing springs by generating a relative motion between gears using oil pressure. The hydraulic type scissors gear includes: a first gear having an operation chamber and supplied with oil in the operation chamber; a second gear coaxially disposed on a side of the first gear to be rotate relative to the first gear; and a piston configured to rotate the second gear by applying force that pushes the second gear in a rotational direction opposite to a rotational direction of the first gear by being moved in the operation chamber by oil pressure supplied to the operation chamber.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: June 29, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jae Hee Jeon
  • Patent number: 11035434
    Abstract: A bearing assembly comprising a rotating shaft, a rolling bearing and a scissors gear. The bearing assembly further comprises an axial retaining arrangement for the scissors gear onto the rolling bearing. A lock washer is arranged in a groove of an outer massive ring of the rolling bearing.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 15, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Nicolas Tronquoy, Bruno Montboeuf, Philippe Walter
  • Patent number: 11009110
    Abstract: The motion control mechanism comprises a rotor mounted rotating around an axis. The rotor has a first threaded part and a second threaded part separated by a central part placed in contact with a stator excited by an oscillator. A frame defines a first threaded part collaborating with the first threaded part of the rotor. The second threaded part of the rotor collaborates with an output shaft. Rotation of the rotor with respect to the frame results in movement of the output shaft along the axis. The oscillator comprises an oscillating mass excited by an angular actuator formed by piezoelectric actuators arranged around a star-shaped support. The oscillator is fitted inside the rotor configured in the form of a bell and comprising several stressed sectors.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 18, 2021
    Assignee: CEDRAT TECHNOLOGIES
    Inventors: François Barillot, Christian Belly, Adrien Guignabert
  • Patent number: 10995848
    Abstract: A motorcycle drive device includes a shiftable transmission set up to transmit drive power which can be provided by an engine crankshaft toward a drivable wheel. The transmission includes an input shaft having a rotation axis when is displaceable to adjust a spacing between the rotation axes of a primary gearwheel on the transmission input shaft and a primary pinion transferring the drive power from the crankshaft. A transmission input shaft bearing supporting the transmission input shaft is arranged in a bearing plate that is rotatable relative to a housing of the transmission. The bearing plate includes an adjusting mechanism arranged to change the position of the bearing plate with respect to the transmission housing to adjust the axial spacing of the rotation axes.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 4, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Peter Wolff, Thomas Steinle
  • Patent number: 10968997
    Abstract: An anti-backlash structure for a scissors gear is provided including a scissors gear and a cam gear which are coaxially connected to rotate relative to each other, an end piece which has one side which is press-fitted into a cam shaft so that the end piece rotates together with the cam shaft, the other side which is in surface-to-surface contact with the scissors gear, and a circumferential surface with which the cam gear is press-fitted; a bolt which is coupled to an inner diameter portion of the scissors gear, penetrates the end piece, and is inserted into the cam shaft; and a scissors spring which has one side coupled to the end piece, and the other side coupled to the bolt. When the end piece rotates, the scissors spring rotates the scissors gear relative to the cam gear through the bolt and allows the scissors gear to come into close contact with the cam gear.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: April 6, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Jae-Hee Jeon
  • Patent number: 10954939
    Abstract: Disclosed is a gear pump (10) comprising a contra rotating gear element pair (30 and 40) mounted within a housing (20), each gear element having complementary gear teeth sets providing a pumping action in use, said teeth being formed from an annulus (34 and 44) of generally rigid construction mounted on a relatively flexible inner section (35 and 45), the gear pair being mounted such that their respective annuli are biased into resilient contact with the housing to provide a sliding seal.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 23, 2021
    Assignee: Cytiva Sweden AB
    Inventor: Andreas Torbjorn Lundin
  • Patent number: 10837542
    Abstract: A lubrication system for a rack and pinion mast of a drilling rig includes a lubricating pinion positioned on a cart and in engagement with the rack. The lubricating pinion includes a plurality of lubrication dispensing ports formed on faces of the teeth of the pinion. The lubrication dispensing ports are fluidly coupled to lubrication ports formed in the lubricating pinion. The lubrication ports fluidly couple to an inner bore of the lubricating pinion. The inner bore may be fluidly coupled to a lubricant reservoir.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: November 17, 2020
    Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
    Inventors: Ashish Gupta, Padira Reddy
  • Patent number: 10823269
    Abstract: A bicycle rotor comprises a base portion and at least one chain engagement portion. The base portion is configured to rotate around a rotational center axis of the bicycle rotor. The base portion is at least partly made of a first resin material. The first resin material has a first Young's modulus. The at least one chain engagement portion is provided on the base portion. The at least one chain engagement portion is at least partly made of a second resin material. The second resin material has a second Young's modulus. The first Young's modulus is higher than the second Young's modulus.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 3, 2020
    Assignee: SHIMANO INC.
    Inventors: Kenta Nakamura, Sota Yamaguchi
  • Patent number: 10816060
    Abstract: A reduction gear including an input shaft including an input gear, an output shaft including an output gear, and two intermediate transmission lines, each intermediate transmission line including an intermediate shaft including a first stage of teeth and a second stage of teeth, the stages rotating as one, and an additional gear for meshing respectively with the first stage of teeth and the input gear, or with the second stage of teeth and the output gear, and the reduction gear wherein the input gear or the output gear meshing with the additional gears is axially offset with respect to the stage of teeth of the intermediate shafts meshing with the additional gears.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 27, 2020
    Assignee: SAFRAN TRANSMISSION SYSTEMS
    Inventors: Benjamin Feraud, Aldric Renaud Gabriel Marie Moreau De Lizoreux, Boris Morelli, Maxime Amiet, Antoine Mathieu
  • Patent number: 10746061
    Abstract: A hydraulic type scissors gear may include a first gear having a working chamber formed therein and oil supplied into the working chamber; a second gear provided to be relatively rotatable coaxially with a side surface of the first gear; and a piston supplied with the oil supplied into the working chamber, and moved in the working chamber by pressure of the oil supplied thereinto to apply a force that pushes the second gear in a rotation direction opposite to a rotation direction of the first gear to rotate the second gear.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jae Hee Jeon
  • Patent number: 10738870
    Abstract: A two-color molding method in which, when a secondary molded body is formed by covering the surface of a primary molded body made of a reinforcing-fiber-containing synthetic resin material with a reinforcing-fiber-free synthetic resin material, these synthetic resin materials may differ and the production cost does not increase. When a primary molded body is formed by injecting a molten reinforcing-fiber-containing synthetic resin material into a primary molding cavity, the molten reinforcing-fiber-containing synthetic resin material flows from one end toward the other end of the primary molding cavity and a short shot is performed. This exposes reinforcing fiber in a tooth of the primary molded body positioned at the other end of the primary molding cavity. In the secondary molding cavity, the tooth in which the reinforcing fiber is exposed is covered with a reinforcing-fiber-free synthetic resin material to form a synthetic resin gear as a two-color molded body.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 11, 2020
    Assignee: ENPLAS CORPORATION
    Inventor: Kazuma Yanagisawa
  • Patent number: 10737588
    Abstract: To provide a power seat slide device having improved effects of reducing abnormal sound, a temperature increase, and so on in gear mechanisms and so on. Gear mechanisms each include a case in which a worm and a worm wheel are rotatably supported, the cases are suspended from and supported by upper rails. The worms are connected to and supported by a rotational force transmission shaft of a drive mechanism, and the worm wheels are screwed to and supported by slide screws provided in lower rails. Further, the cases are supported on the lower rails via balls which are rolling members. This structure stabilizes a slide operation of the cases themselves and can further improve the effects of reducing abnormal sound and so on.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 11, 2020
    Assignees: DELTA KOGYO CO., LTD., DELTA TOOLING CO., LTD.
    Inventors: Etsunori Fujita, Katsuhiro Inoue, Kiyonori Umezaki
  • Patent number: 10730614
    Abstract: In a rotor mast for a rotorcraft, the rotor mast can be coupled in a rotationally fixed manner to a drive unit of a helicopter rotor transmission, which allows a particularly smooth running operation. This is achieved in that the rotor mast is configured in two parts, and comprises a bearing mast and an outer mast, with the outer mast, configured as a hollow body, is mounted, concentrically surrounding the bearing mast, such that it can rotate about a central axis relative to the bearing mast. The outer mast can be operatively connected with the helicopter rotor transmission, and the bearing mast can be mounted in the rotorcraft in a locationally and rotationally fixed manner, such that the outer mast can be coupled with a main rotor in a rotationally fixed manner, and can be set in rotation with the helicopter rotor transmission.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 4, 2020
    Assignee: KOPTER GROUP AG
    Inventors: Roman Köstli, Martin Stucki
  • Patent number: 10619716
    Abstract: A gearbox assembly for an electric power assisted steering apparatus comprises a gearbox housing which houses a worm shaft and a gear wheel, the worm shaft being supported relative to the housing by a main bearing at an end closest to the motor and by a tail bearing at an end furthest from the motor, and the gear wheel being supported by an output shaft having at least one end that provides a take-off from the gearbox assembly, in which the main bearing and tail bearing are free to move relative to the housing through a limited range of motion that enables the worm shaft to pivot away from the wheel gear facilitated by tilting of the main bearing about a pivot that is fixed relative to the housing, characterised in that the gearbox assembly is arranged such that the pivot reacts the axial component of the worm shaft tooth load that arises when a gearwheel torque is applied to the gearwheel in a first direction but not in a second, opposing, direction, and in that a tensioning device is provided that reacts th
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: April 14, 2020
    Assignee: TRW Limited
    Inventor: Mark Anthony Wilkes
  • Patent number: 10598270
    Abstract: A lubrication system for a rack and pinion mast of a drilling rig includes a lubricating pinion positioned on a cart and in engagement with the rack. The lubricating pinion includes a plurality of lubrication dispensing ports formed on faces of the teeth of the pinion. The lubrication dispensing ports are fluidly coupled to lubrication ports formed in the lubricating pinion. The lubrication ports fluidly couple to an inner bore of the lubricating pinion. The inner bore may be fluidly coupled to a lubricant reservoir.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: March 24, 2020
    Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
    Inventors: Ashish Gupta, Padira Reddy
  • Patent number: 10563745
    Abstract: A wear compensator to compensate wear between a rack and a pinion including a yoke plug, a pin affixed to the yoke plug, jaws that surrounds the pin, a disc spring sandwiched between the yoke plug and the jaws, a stage compensator that receives and slides along the jaws to provide a frictional force, a rack guide in contact with the rack, a spring extending between the stage compensator and the rack guide, wherein when the rack guide transfers to the stage compensator a first load above a predetermined threshold, the frictional force overcomes prevents the spring disc to push the stage compensator towards the rack, and when the rack guide transfers to the stage compensator a second load below the predetermined threshold, the frictional force allows the spring disc to push the stage compensator towards the rack.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 18, 2020
    Assignee: JTEKT AUTOMOTIVE NORTH AMERICA, INC.
    Inventor: Thomas Brown
  • Patent number: 10533652
    Abstract: A worm gear drive mechanism (1) having a housing (8), a rotatably mounted worm gear (4) and a worm shaft (2) rotatably mounted at at least one bearing point (7), wherein the bearing point (7) has a displacement element (10) for displacing the axial spacing (17) between the gear axis of rotation (6) of the worm gear (4) and the shaft axis of rotation (5) of the worm shaft (2).
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 14, 2020
    Assignee: AUMA Drives GmbH
    Inventors: Tobias Wasser, Holger Graf, Frank Rebhahn, Michael Eleser
  • Patent number: 10436300
    Abstract: An offset preload ball screw with expandable loading area includes: a screw, a nut, and a plurality of balls between the screw and the nut. The inner helical groove of the nut includes at least a first section, a second section and a third section which are continuously connected one another. The preload constantly and smoothly changes in the second section, and the balls can be subjected to loads in positive or negative direction in the second section. Therefore, the running smoothness, precision and load capacity of the ball screw of the present invention is enhanced.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 8, 2019
    Assignee: Hiwin Technologies Corp.
    Inventor: Chang-Hsin Kuo
  • Patent number: 10400945
    Abstract: A mounting plate for mounting a lifting unit in a lifting column which lifting column includes at least two guide tube segments that are insertable substantially concentrically one-into-another and that are movable with respect to one another along their direction of extension in order to change the length of the lifting column. The mounting plate includes a motor-accommodating structure for a drive motor of the lifting unit and an accommodating structure, different from the motor-accommodating structure, for a support component of the lifting unit that is connectable in a rotationally fixed manner to mounting plate. The support component is disposed on a side of the lifting unit remote from or facing away from the drive motor. Also, a lifting column including the mounting plate.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: September 3, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Hans Peter Panzer, Martin Voegelin
  • Patent number: 10396625
    Abstract: A protector for preventing motor damage is revealed. The protector includes a link member linked to a driving part of a motor and having a mounting groove and a first insertion hole, an elastic damping member that is placed in the mounting groove and disposed with a second insertion hole, and a driver member arranged with a projecting block and used for driving a passive member. One surface of the driver member is covered on the mounting groove to form a receiving space. The projecting block is mounted in the second insertion hole whose inner edge is closely attached to an outer edge of the projecting block. The damping member is compressed in the receiving space so that an outer edge thereof is tightly attached to an inner edge of the mounting groove and the driver member. Thereby the motor operates normally no matter the passive member is locked.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: August 27, 2019
    Assignees: IEI Integration Corp., Armorline SH Corp.
    Inventor: Yu-Tsung Chang
  • Patent number: 10330188
    Abstract: Gears, for example, for a gear train are disclosed. The gear may be divided into two axially adjacent spur gears and have a torsion spring in the form of a circular ring segment. Between two peripherally mutually opposing spring ends, a slot may be formed in which two cams engage which are each assigned to one of the two spur gears. One of the cams may be assigned to one of the two spring ends and the other cam may be assigned to the other spring end. The two cams may be arranged at least substantially overlap-free in an axial direction, wherein contact faces for the cams formed at both spring ends of the torsion spring are arranged on a radially outer end of the spring ends. The contact faces may be delimited radially inwardly by clearances on the spring ends.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 25, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Thorsten Koch, Markus Holzberger, Ramon Jurjanz, Mario Arnold, Silvia Kutzberger, Dustin Knetsch, Wilfried Breton, Igor Illg
  • Patent number: 10280983
    Abstract: A shaft-hub connection of a double gearwheel (2) on a transmission shaft (5), in which the double gearwheel (2) has a first gearwheel (3) and a second gearwheel (4), which are connected to one another in a rotationally fixed manner. The shaft-hub connection is in the form of a shrink fit (7) between a hub (8) of the first gearwheel (3) and the transmission shaft (5). A maximum of the torque to be transmitted can be transmitted by virtue of the shrink fit (7).
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: May 7, 2019
    Assignee: ZF Friedrichsafen AG
    Inventors: Maximilian Scheufler, Stefan Renner
  • Patent number: 10202143
    Abstract: One embodiment provides a power steering apparatus including: a worm gear that is rotated by receiving a driving force; a bearing member that supports the worm gear so as to make the worm gear rotatable; a worm wheel that is connected to the worm gear so as to be rotatable and apply a steering assist force to a steering wheel; and a support member that supports the bearing member so as to make the bearing member slidable in a crossing direction that crosses a rotating shaft of the worm wheel. The support member has a guide surface to guide the bearing member in the crossing direction therealong. The support member also has a holding portion that holds a lubricant in a recessed portion that is recessed from the guide surface.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 12, 2019
    Assignee: SHOWA CORPORATION
    Inventor: Tsutomu Kimijima
  • Patent number: 10145460
    Abstract: A gear arrangement with a divided spur toothing includes a main gear and a gear rotatable to the latter in a circumferential direction. The main gear has a hub on which the rotatable gear is arranged. A spring element is arranged between the main gear and the rotatable gear. With the spring element, the rotatable gear is pretensioned in the circumferential direction against the main gear. A first spur toothing part of the spur toothing is formed on the main gear and a second spur toothing part of the spur toothing is formed on the rotatable gear. The first spur toothing part has a first axis of rotation and the second spur toothing part has a second axis of rotation. The second axis of rotation of the second spur toothing part is offset relative to the first axis of rotation of the first spur toothing part.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 4, 2018
    Assignee: Miba Sinter Austria GmbH
    Inventors: Manuel Steinmaurer, Martin Hessmann, Wolfgang Siessl, Karl Dickinger
  • Patent number: 10088032
    Abstract: A centralizing bushing assembly includes a bushing housing having axial ends and an opening extending therethrough along an axial axis. The opening can have a pocket extending outwardly from the axial axis within the bushing housing and have internal shoulders axially facing each other. A bushing ring can be positioned within the pocket of the bushing housing between the internal shoulders. The bushing ring can have a split for allowing collapsing of the bushing ring radially inward and have an inner diameter for slidably engaging an axially movable shaft extending through the bushing housing along the axial axis and also have an outer shoulder. A resilient biasing member can be positioned against the outer shoulder of the bushing ring for radially biasing the inner diameter of the bushing ring radially inwardly in a centralizing manner about the axial axis for engaging and centralizing the shaft slidably positioned therethrough.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: October 2, 2018
    Assignee: Haydon Kerk Motion Solutions, Inc.
    Inventors: Jim Lamson, Keith Knight
  • Patent number: 10040580
    Abstract: The invention relates to a gear assembly (10) for use in a space craft for control of a moveable component thereof. The assembly comprises a load gear (11) in engagement with a drive gear (12) and an auxiliary gear (13). The drive gear (12) is coupled to a drive motor (14) so as to drive the load gear (11) in a first rotational direction. The auxiliary gear (13) is coupled to a retardation device (15) that is configured to passively resist the load gear (11) from rotating in the first rotational direction.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 7, 2018
    Assignee: AIRBUS DEFENCE AND SPACE LIMITED
    Inventors: Martin Garland, Stephen Bamford, Carl White
  • Patent number: 9958057
    Abstract: An opposed-piston engine includes a backlash reducing gear with at least a first and second gear that move relative to each other because of a hydraulic pressure applied within the gear. A backlash control system that includes the backlash reducing gear can dynamically adjust backlash between at least two gears in the gear train of the engine during operation of the engine instead of setting backlash prior to operation of the engine. A method for adjusting backlash in a two-stroke-cycle, opposed-piston engine with a backlash reducing gear includes providing hydraulic fluid, such as oil, to the gear, and allowing the backlash reducing gear to adapt to changes in the engine that include temperature changes, torque reversals, changes in load and the like. The backlash reducing gear adapts to changes in the engine by controlled leaking and intake of oil.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: May 1, 2018
    Assignee: ACHATES POWER, INC.
    Inventors: Abhishek B. Sahasrabudhe, Sumanth Kashyap, John J. Koszewnik
  • Patent number: 9907564
    Abstract: The present invention relates generally to the field of micro-scale or millimeter scale devices and to the use of multi-layer multi-material electrochemical fabrication methods for producing such devices with particular embodiments relate to shredding devices and more particularly to shredding devices for use in medical applications. In some embodiments, tissue removal devices are used in procedures to removal spinal tissue and in other embodiments, similar devices are used to remove thrombus from blood vessel.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 6, 2018
    Assignee: Microfabrica Inc.
    Inventors: Michael S. Lockard, Uri Frodis, Adam L. Cohen, Richard T. Chen
  • Patent number: 9890766
    Abstract: Pitch drive system for a wind turbine comprising a motor, a drive pinion operationally connected with the motor and a gear arranged to mesh with the drive pinion, wherein a first plate is provided on one side of the drive pinion, the first plate comprising one or more channels adapted to provide a lubricant to a tooth of the drive pinion that is in meshing engagement with teeth of the gear. The disclosure further relates to a wind turbine rotor.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: February 13, 2018
    Assignee: ALSTOM Renewable Technologies
    Inventors: Pierre Pasquet, Javier Checa Caballero, Daniel García I Erill
  • Patent number: 9822866
    Abstract: A transmission of an internal combustion engine in which the shaft length of a main shaft can be shortened to eliminate a supporting wall around a reduction gear while a thrust load is received. Around a main shaft of a transmission of an internal combustion engine, a primary bearing is fastened to an inside of a primary driven gear, and is disposed between the primary driven gear and the main shaft. A collar member is disposed between the primary bearing and a main bearing. A step portion, in contact with the main bearing, is formed on the main shaft on an opposite side of the main bearing from the collar member. A cylindrical portion, an inner race of the primary bearing, the collar member, and an inner race of the main bearing are fastened to the side of the step portion.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: November 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kinya Mizuno, Junji Konaka, Yasushi Fujimoto, Hiroyuki Makita
  • Patent number: 9746066
    Abstract: A cylindrical double helix gear having an axis and a unitary gear arrangement extending about the axis, wherein the gear arrangement has two axially spaced gear portions with each gear portion comprising a plurality of gear teeth extending about a radial outer surface of the gear arrangement, wherein the gear portions are connected by a flexible spacer portion configured to allow relative movement between the gear portions.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: August 29, 2017
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventor: Gideon Daniel Venter
  • Patent number: 9732833
    Abstract: An electromotive linear drive in the form of a dual drive adjust movably mounted parts of reclining and seating furniture. Two threaded spindles (2, 3) driven by a worm gear and which are arranged one behind the other and flush with one another for displacing a lifting element. Bearings are provided at both ends of each threaded spindle (2, 3). The bearings are designed as roller bearings (4, 5) having an inner ring (6) and an outer ring (7). The aim of the invention is to design an electromotive dual drive in such a way that a short overall length is achieved and that the stability of the structure is increased. Said aim is achieved by arranging an abutment between both roller bearings (4, 5), which accommodate the spindle ends, on which the roller bearings are supported on from both sides.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: August 15, 2017
    Assignee: DewertOkin GmbH
    Inventors: Andreas Oberndörfer, Jürgen Martin
  • Patent number: 9683653
    Abstract: A rotating device includes a rotating disc and a combined transmission shaft. The rotating disc includes a turret and multiple driven rollers. The combined transmission shaft includes a first roller gear cam and a second roller gear cam. The first roller gear cam includes a first shaft, a combined shaft and a first helical tooth. The combined shaft protrudes outward from a side of the first shaft. The first shaft is surrounded by the first helical tooth and has a first outer surface and a first inner surface. The second roller gear cam includes a second shaft and a second helical tooth. The second shaft has a combination hole. The second shaft is surrounded by the second helical tooth and has a second outer surface and a second inner surface. The combined shaft passes through the combination hole.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: June 20, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Huei Wu, Tien-Hsi Tai, Chang-Chia Hsieh, Min-Chang Wu, Sheng-Feng Tsai, Ming-Ju Wu
  • Patent number: 9618107
    Abstract: A toothed wheel (16) is provided with teeth, in which a cross section of a respective first section (24) of the tooth (23) has an outer contour that projects in at least one partial area of the outer contour relative to an outer contour of the adjoining second section (26) of the tooth (23), and is elastically designed and/or mounted, as well as a pump unit, in particular as a metering pump unit, with a drive having a toothed gearing with the toothed wheel.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: April 11, 2017
    Assignee: Grundfos Management a/s
    Inventors: Klaus Müller, Sergei Gerz, Ralf Haas
  • Patent number: 9606500
    Abstract: A gear transmission device includes a drive rotator and a driven external gear. The drive rotator includes a drive internal gear to rotate about a rotary shaft. The driven external gear meshes with the drive internal gear to transmit a drive force to a drive target.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: March 28, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoki Matsuda, Masahiro Ishida, Shinya Shimizu
  • Patent number: 9528500
    Abstract: A system for lubricating gears includes a drive pinion configured to interact with bearing teeth. The drive pinion includes an internal axially extending lubricant channel connected to a plurality of radially extending lubricant delivery conduits. The plurality of radially extending lubricant delivery conduits extend from the internal axially extending lubricant channel radially outward to a radial surface of the drive pinion. The system is configured to transport lubricant from the internal lubricant channel through the plurality of lubricant delivery conduits to the radial surface to lubricate the drive pinion and the bearing teeth.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: December 27, 2016
    Assignee: General Electric Company
    Inventors: Junqing Xu, Shijiang Liu, Ting Gu
  • Patent number: 9518841
    Abstract: Device for transmitting movement to a toothed element forming an input of a position sensor, the transmission device including an output shaft, a first toothed sector rotatably linked to the output shaft and a second toothed sector mounted coaxially to the first toothed sector in order to have an angular displacement relative to the first toothed sector, a return member mounted between the toothed sectors returning the second toothed sector into a predetermined position, characterised in that the return member is arranged such as to magnetically generate a force tending to move the second toothed sector into the predetermined position.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 13, 2016
    Assignee: SAGEM DEFENSE SECURITE
    Inventors: Bruno Tilly, Nicolas Ravoux
  • Patent number: 9500270
    Abstract: Split gear (1) for avoiding backlash when engaging a mating gear (4), comprising a first (2) and second (3) toothed gear wheel, rotating means (5) for coaxially interconnecting the first (2) and second (3) gear at least partially rotatable with respect to each other around a mutual rotational axis (15) and a spring (10) resiliency interconnecting the first (2) and second (3) gear for creating a negative moment between the first (2) and second (3) gear upon alignment of the teeth (12, 13) of the first (2) and second (3) gear by rotation of the first (2) gear with respect to the second (3) gear so that the mating gear (4) can be engaged, characterized in that the spring (10) is integrally formed with the second (3) gear wheel.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 22, 2016
    Assignee: VCST Industrial Products
    Inventors: Bart Vandewal, Reymond Reyskens, Steven Van Lieshout
  • Patent number: 9488257
    Abstract: A cam device includes a first member including a plurality of cam followers arranged in a row direction and a second member including a rotatable cam with an engaging groove, on an outer circumferential surface thereof, to be engaged with the cam followers, the second member moving relatively with respect to the first member in the row direction by rotating the cam and making the plurality of the cam followers engage successively in the engaging groove, wherein the second member includes a gear that rotates the cam by engaging with the cam, and second teeth that mesh with first teeth of the gear are provided on the outer circumferential surface of the cam.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: November 8, 2016
    Assignee: TECHNO DYNAMICS INC.
    Inventor: Heizaburo Kato
  • Patent number: 9239094
    Abstract: This face gear has a plurality of annularly arranged gear teeth. A recess for holding grease or another lubricant is formed in the tooth surface of each gear tooth. A recess forming area, which is the area in which the recess is formed, is provided between the tooth bottom and the pitch point in each gear tooth. In other words, a recess is not formed in the part of the tooth surface that is located between the tooth tip and the pitch point. As a result, the gear teeth can be effectively lubricated while minimizing instability in the meshing state between gears.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: January 19, 2016
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Yuki Okabe
  • Patent number: 9234457
    Abstract: A balance shaft arrangement is for a marine engine having a crankshaft supported for rotation about a crankshaft axis and a drive gear supported for rotation with the crankshaft. The balancing arrangement has at least one balance shaft, and a driven gear being driven into rotation by the drive gear, the driven gear being connected to the balance shaft so as to drive the balance shaft into rotation. The driven gear is selectively radially positionable towards and away from the drive gear. A dampening member is disposed between the driven gear and the balance shaft, the dampening member accommodating radial positioning of the driven gear with respect to the balance shaft.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: January 12, 2016
    Assignee: Brunswick Corporation
    Inventor: Masahiro Yukioka