Patents Examined by Thomas R. Hannon
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Patent number: 9719556Abstract: A journal foil air beating includes: a top foil located to face an outer circumferential surface of a rotating shaft and surround the rotating shaft; a bump foil being an elastically deformable member and located to surround the top foil; a base foil located to surround the bump foil, and a coupling unit configured to couple the first end portion of the top foil, the first end portion of the bump foil, the first end portion of the base foil, and the second end portion of the base foil, wherein the base foil, the bump foil, and the top foil are modularized into one piece by the coupling unit. According to the present invention, the journal foil air bearing may be easily assembled in advance and modularized into one piece, may be very conveniently mounted or disassembled on a bearing housing in a workplace.Type: GrantFiled: March 14, 2016Date of Patent: August 1, 2017Assignee: TNE KOREA CO., LTD.Inventor: Kyeong Su Kim
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Patent number: 9714679Abstract: An oil film bearing for supporting a roll neck in a rolling mill, suitable in particular for transmitting high bearing forces when the bearing partners are slightly and slowly moved with respect to each other, has a bearing surface into which are incorporated rods made of a friction-reducing material (e.g., low friction compounds), which extend in a substantially perpendicular direction to the bearing surface. The rods are deformed during heat processing to define a bearing surface. The bearing partner, such as a roll sleeve, rests on the free face of the deformed rods.Type: GrantFiled: March 15, 2016Date of Patent: July 25, 2017Assignee: CORTS ENGINEERING GMBH & CO.KGInventor: Jochen Corts
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Patent number: 9714678Abstract: A slider is composed of four components except for rolling elements. A slider moving relatively to a guide rail is composed of a carriage having raceway grooves, a circulator to make a return passage and insert nuts to fit into through-holes in the circulator. Engaging parts of the carriage makes fit-engagement with holes in the circulator to make snap-fit between the carriage and the circulator to fasten them each other.Type: GrantFiled: March 23, 2016Date of Patent: July 25, 2017Assignee: NIPPON THOMPSON CO., LTD.Inventors: Tsuguyoshi Nara, Hideki Kuwabara
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Patent number: 9708931Abstract: A device for centring and guiding the rotation of a turbine engine shaft, in which the outer race of a bearing is retained axially upstream and downstream by a retaining mechanism cooperating with a bearing bracket and with a coupling mechanism including elastically deformable mechanism connecting the outer race to the bearing bracket, the retaining mechanism being separate from a protecting ring of the device. A method of assembling such a device is also described. The retaining mechanism is pre-assembled with the coupling mechanism prior to the final assembly of the coupling mechanism with the bearing bracket. The device and the method have the combined advantages of axially retaining the outer race in two opposing directions and having a particularly straightforward assembly.Type: GrantFiled: November 25, 2014Date of Patent: July 18, 2017Assignee: SNECMAInventors: Regis Eugene Henri Servant, Serge Louis Antunes, Julie Bellay, Fabrice Cretin, Damien Lourit
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Patent number: 9709094Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.Type: GrantFiled: December 12, 2014Date of Patent: July 18, 2017Assignee: IHI CorporationInventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
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Patent number: 9709092Abstract: Provided are a fluid dynamic bearing, a motor, and an optical deflector, for which a fixed shaft can be attached with little axial eccentricity. The bearing (10) is equipped with a fixed shaft (11), a sleeve (20) provided so as to be capable of rotating around the fixed shaft (11), dynamic pressure generating sections (22, 23) provided in the sleeve (20), and a lower case (30) for securing the lower end (11a) of the fixed shaft (11). In addition, the bearing is equipped with a retaining case (40), which has a chuck (52) that retains the upper end (11b) of the fixed shaft (11) secured by the lower case (30), and which can be secured to the lower case (30) in a state that does not generate pressure causing the axial center of the fixed shaft (11) to move.Type: GrantFiled: May 11, 2015Date of Patent: July 18, 2017Assignee: NIDEC COPAL ELECTRONICS CORPORATIONInventors: Takahiro Kikuchi, Takeshi Hijiya, Toshiya Uchida
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Patent number: 9709332Abstract: An apparatus for rotatably supporting a rotating cylindrical body. The apparatus comprises a pair of roller assemblies for supporting an annular bearing surface of a rotating cylindrical body. Each of the roller assemblies comprises a cylindrical roller having a circumferential bearing surface in supporting engagement with the annular bearing surface of the rotating body; first and second shaft extensions extending from the roller; bearings for rotatably supporting the first and second shaft extensions; and a pivot plate for supporting the bearings, the pivot plate being pivotally attached to a base by a pivot pin such that the cylindrical roller self-adjusts to the annular bearing surface of the rotating body.Type: GrantFiled: March 9, 2016Date of Patent: July 18, 2017Inventor: Walter Gebhart
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Patent number: 9709093Abstract: Bearing 13 has lining layer 17 that is formed of an alloy having a predetermined shape and that has chamfered portion 25, and overlay layer 19 that is formed of a resin on an inner circumferential surface of lining layer 17, the inner circumferential surface sliding relative to a mating shaft, and that covers at least a portion of chamfered portion 25.Type: GrantFiled: February 14, 2014Date of Patent: July 18, 2017Assignee: Taiho Kogyo Co., Ltd.Inventors: Shu Kamiya, Toshiyuki Chitose, Takashi Tomikawa, Yasunori Kabeya, Taichi Yoshimi
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Patent number: 9702409Abstract: The bearing provides an inner race, an outer race and a wear race that is made of synthetic material and fastened to one of the races. The wear race is overmoulded on at least one face of the race. The face is provided with at least one blind indentation, inside of which there extends a rib of complementary shape of the wear race.Type: GrantFiled: March 21, 2016Date of Patent: July 11, 2017Assignee: AKTIEBOLAGET SKFInventors: Benoit Arnault, Philippe Walter
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Patent number: 9702401Abstract: Embodiments of the invention relate to bearing apparatuses in which one bearing surface of the bearing apparatus includes diamond, while another bearing surface includes a non-diamond superhard material (e.g., silicon carbide). For example, a bearing apparatus may include a bearing stator assembly and a bearing rotor assembly. The bearing stator assembly and bearing rotor assembly each include a support ring and one or more superhard bearing elements generally opposed to one another. The bearing surface(s) of the rotor or stator may include diamond, while the bearing surface(s) of the other of the rotor or stator do not include diamond. Another bearing apparatus may include both thrust- and radial bearing components. The generally opposed thrust-bearing elements may include diamond, while the generally opposed radial bearing elements may not include diamond, but include a non-diamond superhard material, such as silicon carbide.Type: GrantFiled: August 13, 2015Date of Patent: July 11, 2017Assignee: US SYNTHETIC CORPORATIONInventor: Jair J. Gonzalez
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Patent number: 9695874Abstract: An injection-molded rolling-element bearing cage has a radially outer-lying surface, a radially inner-lying surface, first and second radial walls connecting the radially outer-lying surface and the radially inner-lying surface, and a plurality of receiving pockets configured to receive rolling elements. The receiving pockets are spaced from the first radial wall by a first annular band of the radially inner-lying surface and from the second radial wall by a second annular band of the radially inner-lying surface, and at least one projection extends radially inward from the radially inner-lying surface into a spaced defined by the radially inner-lying surface, at least part of the at least one projection being located in the first annular band.Type: GrantFiled: July 3, 2014Date of Patent: July 4, 2017Assignee: AKTIEBOLAGET SKFInventors: Joerg Assmann, Thomas Krause
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Patent number: 9694627Abstract: A hub-bearing assembly provided with a bearing unit and a rotatable rotor-hub. The bearing unit includes a stationary radially outer ring, a couple of rotatable radially inner rings, and a double row of rolling elements, wherein the rolling elements are interposed between the outer ring and the inner rings, whose centers are located along a first circle having a radius, with respect to a symmetry axis of the assembly. The rotor-hub is made of a light alloy. A tubular portion is assembled on top of the radially inner rings. The tubular portion is steadily fixed a flange portion, axially external and includes a plurality of fixing holes. Axes of the fixing holes are located along a second circle defined by a radius respective to the symmetry axis of the assembly. The radius of the first circle (rolling elements) is greater than the radius of the second circle (fixing holes).Type: GrantFiled: June 29, 2015Date of Patent: July 4, 2017Assignee: AKTIEBOLAGET SKFInventors: Domenico Bosco, Laura Sguotti
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Patent number: 9689424Abstract: A tiered bearing assembly including first and second pluralities of tapered rolling elements and a common center ring arranged between the first and second pluralities of tapered rolling elements with a Z-shaped profile in cross-section is provided. A taper direction of the first plurality of tapered rolling elements is opposite to a taper direction of the second plurality of tapered rolling elements.Type: GrantFiled: May 17, 2016Date of Patent: June 27, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Dennis Roffe, Michael Heaton
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Patent number: 9689422Abstract: A foil bearing unit includes: a first foil holder formed of a single component; a radial bearing foil mounted to an inner peripheral surface of the first foil holder; a thrust bearing foil mounted to an end surface of the first foil holder; and an inner member including: a shaft portion; and a flange portion projecting radially outward from the shaft portion. The inner member is supported in a radial direction by a fluid pressure that is generated in a radial bearing gap between a bearing surface of the radial bearing foil and an outer peripheral surface of the shaft portion, and the inner member is further supported in a thrust direction by a fluid pressure that is generated in a thrust bearing gap between a bearing surface of the thrust bearing foil and one end surface of the flange portion.Type: GrantFiled: August 27, 2014Date of Patent: June 27, 2017Assignee: NTN CORPORATIONInventors: Masato Yoshino, Mitsuo Kawamura, Hiroki Fujiwara
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Patent number: 9689423Abstract: A cage has a small-diameter annular portion provided between an inner ring and an outer ring on a first side of a bearing in an axial direction and a plurality of cage bars extending from the small-diameter annular portion toward a second side of the bearing in the axial direction. In each of an inner peripheral surface and an outer peripheral surface of the small-diameter annular portion, recessed portions are formed which is each open toward a bearing exterior on the first side of the bearing in the axial direction. An inner wall of each recessed portion has an inclined surface that serves to enlarge a cross section of the recessed portion toward the bearing exterior on the first side of the bearing in the axial direction.Type: GrantFiled: April 20, 2016Date of Patent: June 27, 2017Assignee: JTEKT CORPORATIONInventor: Akiyuki Suzuki
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Patent number: 9683599Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers provided between the inner ring and the outer ring, and an annular cage. The cage has a small-diameter annular portion on a first side in an axial direction, a large-diameter annular portion on a second side in an axial direction, and a plurality of cage bar portions. The cage has pockets that are spaces each formed between the large-diameter annular portion and the small-diameter annular portion and between the adjacent cage bar portions in a circumferential direction and in which the tapered rollers are held. The cage further has a roller retaining portion that inhibits the tapered rollers housed in the pockets from falling outward in a radial direction. A recessed portion is formed in the small-diameter annular portion to reduce rigidity of the small-diameter annular portion.Type: GrantFiled: March 21, 2016Date of Patent: June 20, 2017Assignee: JTEKT CORPORATIONInventors: Atsushi Nagai, Kenichi Ono
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Patent number: 9683606Abstract: A washer (5) to be mounted to an end surface (14) of an inner ring includes an extension portion (52) extending along an outer peripheral surface (15) of the inner ring. The extension portion (52) includes an engaging projection portion (53) to be engaged with an engaging recessed portion (16) formed in the outer peripheral surface (15) of the inner ring. The engaging projection portion (53) includes a rounded curved surface portion (55), and a flat surface portion (54) formed continuously with a forward side in a pressing direction of the rounded curved surface portion (55) and inclined radially outward.Type: GrantFiled: November 25, 2014Date of Patent: June 20, 2017Assignee: NTN CORPORATIONInventor: Tomoki Matsushita
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Patent number: 9677603Abstract: An exhaust gas turbocharger may include a bearing housing and a rotor. The rotor may have a shaft mounted in the bearing housing via two radial bearing bushes. Each radial bearing bush may have an inner surface facing the shaft. The inner surface may have a single chamfer, where the single chamfers of the two radial bearing bushes face one another, or two chamfers, where one of the two chamfers for each of the two radial bearing bushes facing one another are larger than the other of the two chamfers for each of the two radial bearing bushes facing away from one another.Type: GrantFiled: April 28, 2015Date of Patent: June 13, 2017Assignee: Bosch Mahle Turbo Systems GmbH & Co. KGInventors: Ruediger Kleinschmidt, Ulrich Siol, Alexander Baeuerle, Thomas Striedelmeyer, Joerg Eckert, Christoph Butscher
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Patent number: 9677605Abstract: A bearing assembly including a mounting bracket configured to be coupled to a vehicle chassis, a vibration isolator coupled to the mounting bracket, and a bearing received in the vibration isolator. The bearing is configured to receive a drive shaft therein, and is pivotable relative to the vibration isolator.Type: GrantFiled: May 29, 2015Date of Patent: June 13, 2017Assignee: BEARING TECHNOLOGIES, LTD.Inventor: Brian John Cheon
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Patent number: 9677616Abstract: A bearing having an inner race, an outer race and a wear race mounted to press against an external face of one of the races and fastened on the race is provided. The wear race provides at least one annular flange locally covering an internal face of the race opposite the external face. The bearing further provides a sealing member fastened on the other race and includes at least one sealing lip in friction contact with the annular flange of the wear race.Type: GrantFiled: March 11, 2016Date of Patent: June 13, 2017Assignee: AKTIEBOLAGET SKFInventors: Benoit Arnault, Stephane Gaultier, Thomas Perrotin, Philippe Walter