Resilient Patents (Class 384/202)
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Patent number: 10883383Abstract: A multi-film oil damper for accommodating radial movement of a rotary shaft bearing relative to a bearing housing, the multi-film oil damper comprising: an annular damper cavity defined within the bearing housing between a radially outward wall, a first radially extending side wall and a second radially extending side wall, the annular damper cavity having an oil inlet in the radially outward wall, the oil inlet being in communication with a source of pressurized oil; an inner damper ring having axial ends abutting the first and second radially extending side walls of the annular damper cavity; a plurality of outer damper rings coaxially nested between the inner damper ring and the radially outward wall, each outer damper ring having axial ends adjacent the first and second radially outward walls of the annular damper cavity, each outer damper ring having a first cylindrical surface and a second cylindrical surface; a plurality of spacer bosses circumferentially spaced apart at each axial end of the pluralityType: GrantFiled: October 18, 2019Date of Patent: January 5, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Richard Ivakitch, David Beamish
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Patent number: 10233969Abstract: A boss is provided around the periphery of a bushing that is penetrated by a shaft, which moves inside the bushing in the axial direction of the shaft. The boss retains the bushing and the shaft moving inside the bushing, and has a heat conductivity that is higher than that of the bushing. An air gap is provided between the bushing and the boss.Type: GrantFiled: February 23, 2015Date of Patent: March 19, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Nobuhiro Seima
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Patent number: 10215224Abstract: An air foil bearing assembly includes: a bearing housing having a hollow into which a rotary shaft is fitted and having a slot formed in an axial direction on an inner circumference surface of the hollow; a bump foil having a bending end engaged to the slot formed at one end portion, rolled in a circumferential direction inside the hollow, and having a free end of another end portion located on the bending end; a top foil having a bending end engaged to the slot formed at one end portion, rolled in a second circumferential direction inside the bump foil, and having a free end of another end portion located on the bending end; and a stopper provided on each of both sides of the top foil in the circumferential direction and preventing the bump foil from protruding radially outwards from the hollow.Type: GrantFiled: November 27, 2017Date of Patent: February 26, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Chang Ha Lee, Hyunyoo Kim
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Patent number: 10145414Abstract: At least one bearing insert is secured within a metallic housing to form a wear resistant bearing. In operation, the bearing insert engages a journal and provides a wear-resistant surface. The housing defines a cavity for receiving the bearing insert. The cavity preferably expands radially so that the bearing insert remains secured in the cavity. The bearing insert can comprise a refractory ceramic. The bearing insert is secured within the cavity by any suitable means, such as thermal shrink-fit. A thin layer of sacrificial metal protects the bearing insert during initial start-up. The sacrificial metal wears to expose the bearing insert. Further wear exposes a larger area of the refractory bearing insert. A second bearing insert can be disposed opposite to the first so that rotating the housing can expose the second bearing insert to the journal.Type: GrantFiled: June 15, 2016Date of Patent: December 4, 2018Assignee: McDanel Advanced Ceramic TechnologiesInventors: John Dodsworth, Mark Hall, Kim Rheingrover
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Patent number: 10113633Abstract: An epicyclic gearing arrangement includes a planet gear rotatable on a planet bearing that is mounted via a support pin to a carrier of the epicyclic gearing arrangement. A spring film damper is disposed between the cylindrical outer surface of the support pin and the opposing inner surface of the inner ring of the planet bearing and includes an annular gap.Type: GrantFiled: January 28, 2016Date of Patent: October 30, 2018Assignee: General Electric CompanyInventors: Daniel Alan Niergarth, Brandon Wayne Miller, Bugra Han Ertas, Donald Albert Bradley, Joseph Robert Dickman
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Patent number: 10107585Abstract: In at least one embodiment, a firearm comprises a stock comprising a vibration damper. The vibration damper comprises a first resilient member, a second resilient member and a mass. Each resilient member is attached to the stock and comprises a first material and a second material. Each of the first and second materials is elastomeric. The first material defines a body of the resilient member, the body defining apertures therein and spokes extending between adjacent apertures. The second material of each resilient member occupying an entire cross-section of each aperture defined in the first material of the resilient member. The mass is supported by said first and second resilient members.Type: GrantFiled: June 7, 2016Date of Patent: October 23, 2018Assignee: MCP IP, LLCInventor: Mathew A. McPherson
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Patent number: 9989086Abstract: A sliding bearing includes at least one bearing inner ring and at least one bearing outer ring configured to rotate relative to each other about an axis (a), where the rings each include at least one sliding surface, the sliding surfaces being configured to slide along each other, and where the contact surface formed by the mutually contacting sliding surfaces has a maximum contact diameter (DK). At least parts of the sliding surfaces in a radial section have a radius of curvature (rB), the radius of curvature (rB) has a centerpoint (M) located at an offset (b) from the axis (a), and the offset (b) is at least 5% of the radius of curvature (rB).Type: GrantFiled: June 22, 2016Date of Patent: June 5, 2018Assignee: AKTIEBOLAGET SKFInventor: Martin Buettner
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Patent number: 9920639Abstract: A gas turbine combustion chamber is provided, including a flow sleeve structure with an improved anti-vibration performance. A gas turbine combustion chamber of the present invention includes a liner, a transition piece, and a flow sleeve including a plurality of segments and integrated by welding a tie piece along joint portions of the segments. The tie piece includes a first member and a second member, the first member continuously extending along a longitudinal direction of the joint portions of the segments and being arranged to cover the joint portions, and the second member being formed at an end portion of the first member, having a width wider than the first member, and including a recess.Type: GrantFiled: November 14, 2013Date of Patent: March 20, 2018Assignee: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Masaru Sekihara, Kunihiro Ichikawa
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Patent number: 9869205Abstract: A housing for retention of the outer race of a bearing of a gas turbine engine includes an arrangement of spring fingers that yields a lightweight housing capable of withstanding very high radial loads combined with very high torsional windup and axial thrust load. Controlled circumferential gaps on both sides of each spring finger limit the deflection and self-arrest the distortion of the housing. An axial gap is created on the aft end by a portion of the spring finger beam structure that opposes an axial face of the housing and limits the axial distortion. A radial gap created between interface hardware of the housing and the inner retention housing also acts to retain the spring finger housing under load in a radial direction.Type: GrantFiled: November 23, 2015Date of Patent: January 16, 2018Assignee: General Electric CompanyInventors: Ravindra Shankar Ganiger, Bruce Alan Carter, Nitin Deepak Rupnar, Charles Andrew Corman
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Patent number: 9360271Abstract: In at least one embodiment, a firearm comprises a stock comprising a vibration damper. The vibration damper comprises a first resilient member, a second resilient member and a mass. Each resilient member is attached to the stock and comprises a first material and a second material. Each of the first and second materials is elastomeric. The first material defines a body of the resilient member, the body defining apertures therein and spokes extending between adjacent apertures. The second material of each resilient member occupying an entire cross-section of each aperture defined in the first material of the resilient member. The mass is supported by said first and second resilient members.Type: GrantFiled: March 14, 2013Date of Patent: June 7, 2016Assignee: MCP IP, LLCInventor: Mathew A. McPherson
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Publication number: 20140140646Abstract: A self-aligning track roller bearing includes an inner member having a central axis and a convex surface and an outer member has a concave surface and is angularly displaceable relative to the central axis. A lubricious liner is positioned between the convex surface and the concave surface. The lubricious liner creates a force resisting movement of the inner member relative to the outer member. The bearing includes a snubber engaging an axially facing surface of the outer member and another snubber engaging another axially facing surface of the outer member. Outer rings are coupled to opposing axially facing surfaces of the inner member to retain the snubbers in engagement therewith. One or more of the snubbers are elastically deformable in response to angular displacement of the outer member and have a resilience set to overcome the force and urge the outer member to be concentric with the central axis.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.Inventors: Matthew Porter, Robert A. James, Michael S. Gostomski
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Patent number: 8152379Abstract: A bearing device include: (a) a bearing supporting a shaft, and having (a-1) a tubular body portion in which the shaft is rotatably received and (a-2) a radially projecting portion that projects from the tubular body portion outwardly in a radial direction of the tubular body portion; and (b) a bearing receiver plate having (b-1) a receiver hole in which the tubular body portion of the bearing is received, and (b-2) a cutout which extends from the receiver hole and which has an opening that opens outwardly of the bearing receiver plate, such that the bearing can be introduced into the receiver hole via the cutout. The bearing receiver plate and the radially projecting portion of the bearing cooperate with each other to establish (i) a rotation preventer preventing rotation of the bearing relative to the bearing receiver plate and (ii) a backlash reducer reducing play of the bearing relative to the bearing receiver plate. Also disclosed is an image recording apparatus including the bearing device.Type: GrantFiled: April 23, 2007Date of Patent: April 10, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Masaru Takeuchi
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Patent number: 7823426Abstract: A built-in step is conducted by building a drive part which generates a rotation drive power, a rotation shaft to be rotated by the rotation drive power of the drive part through a gear mechanism, a lock stopper to be screwed with the rotation shaft to move axially by rotating of the rotation shaft, a lock bar which moves between a lock position for locking a steering shaft by movement of the lock stopper and an unlock position for unlocking the steering shaft, and a first spring interposed between the lock stopper and the lock bar for giving a bias load, into a lock body to be installed in a mounting hole part of a steering column post of a vehicle from the same direction. Thereafter, a screwing step for screwing the rotation shaft and the lock stopper after the built-in step is conducted to assemble an electric steering lock device.Type: GrantFiled: January 30, 2008Date of Patent: November 2, 2010Assignee: Tokai Rika Co., Ltd.Inventors: Masanari Okuno, Hiroyasu Hasegawa, Nobuhisa Inoue
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Patent number: 7815373Abstract: A symmetric ultra-precision spindle design in which all forces of constraint are, within the tolerances of manufacturing and assembly processes, symmetrically arranged about its axis. Additionally this design may require little or no external power other than the forces to rotate the spindle.Type: GrantFiled: April 14, 2005Date of Patent: October 19, 2010Assignee: InsituTec Inc.Inventors: Marcin B. Bauza, Stuart T. Smith, Shane C. Woody
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Patent number: 7703309Abstract: An electric steering lock device has a lock body to be installed in a mounting hole part of a steering column post of a vehicle, a drive part which generates a rotation drive power, a rotation shaft to be rotated by the rotation drive power of the drive part through a gear mechanism, a lock stopper to be screwed with the rotation shaft to move axially by rotating of the rotation shaft, a lock bar which moves between a lock position for locking a steering shaft by movement of the lock stopper and an unlock position for unlocking the steering shaft, and a bush. The bush has a load receiving part to receive thrust loading of the rotation shaft at least at one side of the rotation shaft, an installation claw part to be installed by inserting in a hole part of the lock body, and a bearing claw part to receive radial load by fitting to be slidably rotatable with an external diameter of the rotation shaft.Type: GrantFiled: January 30, 2008Date of Patent: April 27, 2010Assignee: Tokai Rika Co., Ltd.Inventors: Masanari Okuno, Hiroyasu Hasegawa, Nobuhisa Inoue
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Patent number: 7670054Abstract: A bearing is provided comprising an elongated body including an outer surface and an inner bore. The body includes a front face and a rear face. The front face has at least one circumferential groove and the rear face has at least one circumferential groove. The inner bore and the front face groove define a first wall having a thickness. The front face groove and the rear face groove define a second wall having a thickness. The rear face groove and the outer surface define a third wall having a thickness. The first wall, second wall, and third wall form a pair of crenulations therebetween wherein the first wall thickness is greater than the second wall thickness.Type: GrantFiled: December 18, 2006Date of Patent: March 2, 2010Assignee: Xerox CorporationInventors: Alexander Fedotov, Ismail Scheryar Zafar Jalisi
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Patent number: 7416342Abstract: A vehicle suspension comprising a frame and a pair of levers carried by the frame on opposite sides thereof. Each lever is pivotally mounted on the frame for swinging movement on an axis intermediate opposite ends of the lever transverse to the frame. The suspension includes a pair of beams, one extending forward from one of the levers and the other extending forward from the other lever, each of the forwardly-extending beams having a pivotal connection with the respective lever forward of the lever axis and having a support for a forward axle. The suspension also includes a pair of beams, one extending rearward from one of the levers and the other extending rearward from the other lever, each of said rearwardly-extending beams having a pivotal connection with the respective lever rearward of the lever axis and having a support for a rearward axle.Type: GrantFiled: August 10, 2005Date of Patent: August 26, 2008Assignee: SAF-Holland, Inc.Inventors: Scott R. Peters, Bob G. Baxter, Zoran Tomic
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Patent number: 7077573Abstract: A bearing adapted to support and allow controlled relative movement with an opposed bearing surface. The bearing is constructed to have a long life by incorporating a surface that addresses many causes of friction and wear. The bearing includes a plurality of support members extending from a base. Together, the plurality of support members can support a load applied to the base through an opposed bearing surface. Additionally, the plurality of support members allow sliding modes of motion between the opposed bearings. These support members can move independently to accommodate irregularities located between the support member and the opposed bearing, such that plowing is reduced and wear to the bearings is minimized. The support members may also be configured to allow certain non-sliding modes of motion between opposed bearing surfaces while resisting other non-sliding modes of motion.Type: GrantFiled: December 5, 2002Date of Patent: July 18, 2006Assignee: Tribotek, Inc.Inventors: Nam P. Suh, Matthew Sweetland
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Patent number: 6960023Abstract: A bearing for the blade assembly of the cooling fan, the bearing is made of the plastic steel material having an integrally formed cylindrical hollow body and outward extended large diameter seat. The seat bottom has a recess with screw thread cut along the inside wall. The bottom recess will receive a powerful magnet and a shield cap to cover. The hollow cylindrical body is a long accommodating cavity and extends upward to form a plurality of claws, each claw has a project point. The rotor shaft of the blade assembly will enter the accommodating cavity. The rotor shaft has a round groove to hold the project points of the claws in place. The rotor shaft is further attracted by the power magnet in the bottom recess so the rotor shaft is always kept along vertical center line, rotates in balance to achieve a stable floating rotation.Type: GrantFiled: December 31, 2003Date of Patent: November 1, 2005Assignee: Tek-Chain Development Inc.Inventors: Chung-Yung Hsu, Kuo-Ying Wu
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Patent number: 6718617Abstract: In order to simplify the adjustment of an axial play of a rotor shaft (2.4) between the rotor shaft (2.4) and a stator (1) of a motor with the purpose of reducing the component expenditure and the assembly expenditure of the motor, a first clamp holder (3) and a second clamp holder (4) exert pressure on both sides of a plain bearing (5). In a first step, a rotor (2) of the motor is positioned relative to a housing (1.3) of the motor. A bearing receiver (1.1) is then fixed relative to the housing (1.3) of the motor by inserting, at an axially inner end of the bearing receiver (1.1), the second clamp holder (4); by moving the second clamp holder (4) to a second operating end position; and by fixing the second claim holder (4) at the second operating end position. Next, at an axially outer end of the bearing receiver (1.1), the plain bearing (5) and the first clamp holder (3) are axially inserted into the bearing receiver (1.1).Type: GrantFiled: April 30, 2002Date of Patent: April 13, 2004Assignee: Siemens AktiengesellschaftInventor: Thomas Drexlmaier
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Patent number: 6691883Abstract: A connection assembly including a one piece liner member for use in a connection assembly utilized in either an articulated coupling arrangement and/or a slackless drawbar arrangement for connecting together adjacently disposed ends of a pair of railway vehicles in a semi-permanent manner is provided. The one piece liner member comprises a substantially solid member having a substantially spherical inner surface for positioning around a predetermined portion of a spherical member of a connection assembly. The male connection member of the railway coupling device includes an aperture having a predetermined configuration and an inner surface formed by this aperture. A retainer member is provided for engaging at least a portion of the inner surface of the male connection member to form a substantially spherical inner surface.Type: GrantFiled: November 20, 1998Date of Patent: February 17, 2004Assignee: Westinghouse Air Brake Co.Inventor: David W. Daugherty, Jr.
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Patent number: 6494451Abstract: An idler roller assembly in an imaging system including a sheet material transport roller system having drive rollers and idler rollers. The idler roller assembly includes a plurality of idler rollers. A plurality of springs are connected to apply respective normal forces to the idler rollers. Pivoting linkages are provided to equalize the normal forces applied to the respective rollers by respective springs. In an embodiment, the plurality of idler rollers includes a first idler roller and a second idler roller. The plurality of springs includes a first spring connected to apply a normal force to the first idler roller and a second spring connected to apply a normal force to the second idler roller. The pivoting linkage includes a first pivoting lever member connected between the first spring and the second spring.Type: GrantFiled: March 19, 2001Date of Patent: December 17, 2002Assignee: Hewlett-Packard CompanyInventor: Teodoro Ortiz Michel
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Patent number: 6481894Abstract: A bearing that includes a first bearing support member; a second bearing support member spaced from the first bearing support member, the first and second bearing support members each having a first end and a second end; and a resilient member between the first and second bearing support members, the resilient member having a radial thickness, the radial thickness varying between the first and second ends of the bearing support members, and whereby the bearing wears substantially constantly during its useful life.Type: GrantFiled: February 23, 2001Date of Patent: November 19, 2002Assignee: Lord CorporationInventor: Frank O. James
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Patent number: 6471493Abstract: The present invention relates to a turbo compressor which is capable of minimizing deformation of construction parts which may occur in welding or after welding and simplifying the manufacture and assembly by forming the outer diameter of a driving shaft so as to be stepped and joining the construction parts with bolts and pins.Type: GrantFiled: January 23, 2001Date of Patent: October 29, 2002Assignee: LG Electronics Inc.Inventors: Moon Chang Choi, Sang Wook Lee, Yoo Choi Ji, Kwang Ha Suh
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Patent number: 6413046Abstract: A rotor assembly for a gas turbine engine including a bearing centering sub-assembly that facilitates reduces radial forces transmitted to a bearing assembly is described. The bearing assembly supports a rotor shaft with a rolling element positioned radially inward from an outer race. The bearing centering sub-assembly is coupled to the outer race and includes a plurality of first springs and second springs arranged circumferentially in a row. Each first spring is positioned between adjacent second springs and coupled between the outer race and annular ring. Each second spring is coupled between a support frame and the annular ring.Type: GrantFiled: January 26, 2001Date of Patent: July 2, 2002Assignee: General Electric CompanyInventors: Morris Green Penn, Bala Corattiyil
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Patent number: 6379048Abstract: An improved bearing support structure for a vehicle driveline includes a bracket having ears for supporting a bearing cushion. The ears are separated by a distance which is greater than the thickness of the cushion such that the cushion can self-align within the bracket. In this way, a variety of driveline angles can be accommodated by the bearing cushion within the bracket. Moreover, the bearing cushion is provided with recesses which facilitate the ability of the cushion to flex to further allow relative alignment of the axis of the driveline within the bracket.Type: GrantFiled: September 25, 2000Date of Patent: April 30, 2002Assignee: Meritor Heavy Vehicle Technology, LLCInventor: Ronald N. Brissette
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Patent number: 6376952Abstract: A floating bearing system comprising a bearing supported in a clearance fit within a bearing bracket, for example for use in fractional horsepower shaded pole type electric motors. The bearing system is self aligning, to compensate for deviations in the axial alignment of the rotor shaft. A rotation lock restrains the bearing against rotation within the bearing receptacle while allowing the bearing to settle into proper alignment with the rotor shaft by automatically shifting the pitch of the axis of the bearing. In the preferred embodiment the bracket is composed of an engineering plastic and the bearing is composed of a high performance plastic polymer, so that the bearing system is non-lubricating. In the preferred embodiment the bearing bracket is provided with retaining fingers which hold the bearing in place during the assembly and working life of the motor.Type: GrantFiled: July 14, 1999Date of Patent: April 23, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Christopher Scott Stenta
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Patent number: 6315453Abstract: With the invention liquid lubricated radial sliding bearings are shown, of which the bearing sleeve is elastically fastened in an outer part and forms an elastic journalling with a shaft part which can follow thermal heat expansions and inclined positions of the shaft to a limited extent. Because the bearing material is fastened in a bearing ring and the outer part is formed in a single part to a resilient ring and a support ring which has resilient support surfaces which are directed inwardly and at which the bearing ring lies under a bias force, elastic bearings for high and low temperatures and for differently corrosive lubrication liquids are possible with the same outer dimensions.Type: GrantFiled: July 14, 1999Date of Patent: November 13, 2001Assignee: Sulzer Pumpen AGInventor: Erwin Leibundgut
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Patent number: 6183136Abstract: A floating sleeve bearing assembly for supporting the shaft of an electric motor, the shaft having an axis of rotation and the motor having a stator. The sleeve bearing assembly includes a bearing having therein a bore for receiving the shaft. The bearing has a plurality of cylindrical outer surface portions that are centered on respective axes which are substantially perpendicular to the axis of rotation and which all lie in the same plane substantially perpendicular to the axis of rotation. The sleeve bearing assembly also includes a bearing support bracket having an axis and including a main body fixable relative to the stator. The bracket further includes a plurality of circuitously spaced resilient projections extending from the main body and generally parallel to the bracket axis.Type: GrantFiled: August 11, 1999Date of Patent: February 6, 2001Assignee: A. O. Smith CorporationInventor: Guy Dingman
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Patent number: 6062098Abstract: A gearshift lever (3) is mounted on a ball-and-socket joint which is partially surrounded by a bearing shell (8) made of plastic whereby an economic mounting arrangement (2) which permits maintenance work and can prevent a transmission of vibrations to the gearshift lever (3) is achieved by the fact that the gearshift lever (3) is mounted through the bearing shell (8) on a ball (7) which is rigidly connected to an engine or gearbox casing (1), and the bearing shell (8) is connected to an outer ring (17) through damping rings (18, 19), the gearshift lever (3) being pivotally mounted on an outer peripheral surface of this outer ring through a hub (24).Type: GrantFiled: August 6, 1998Date of Patent: May 16, 2000Assignee: Ina Walzlager Schaeffler oHGInventor: Eberhard Spalthoff
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Patent number: 5982066Abstract: The invention provides a motor and a bearing support and motor housing assembly, wherein the bearing support is detachably mounted to the housing with a flexible fastener, such as a snap ring. A resilient member, such as a spring washer, is seated between the fastener and either the housing or the bearing support to apply a biasing force against the fastener.Type: GrantFiled: April 11, 1997Date of Patent: November 9, 1999Assignee: Nidec America CorporationInventors: Charles Robert Marracino, William A. Miller, John W. Hoover
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Patent number: 5975760Abstract: A central bearing for a bow-shaped rear axle of a motor vehicle is formed of three elastic elements. One central elastic element is arranged directly on a bearing axis support and is pressed by a bearing sleeve. Two additional exterior elastic elements are connected with this bearing sleeve and are supported on a bearing disk which is held on the bearing axis support by a press fit.Type: GrantFiled: September 14, 1998Date of Patent: November 2, 1999Assignee: Dr. Ing. H.C.F. Porsche AGInventor: Francesco Germano
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Patent number: 5945756Abstract: A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle.Type: GrantFiled: October 7, 1997Date of Patent: August 31, 1999Assignee: Siemens Canada LimitedInventors: Haran K. Periyathamby, Marek Horski, Peter A. Kershaw
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Patent number: 5917258Abstract: A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle. In one aspect, a bearing assembly for an electric motor is disclosed. The electric motor is of the type including a housing defining an internal chamber, an armature disposed within the internal chamber and having a rotatable shaft, and magnet means for inducing rotational movement of the armature shaft. The bearing assembly includes a bearing member for supporting the armature shaft for rotational movement and a bearing housing defining an internal bore that accommodates at least a portion of the bearing member.Type: GrantFiled: October 8, 1997Date of Patent: June 29, 1999Assignee: Siemens Canada LimitedInventors: Peter A. Kershaw, Haran K. Periyathamby, Marek Horski
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Patent number: 5853248Abstract: A monolithically formed bearing is disclosed for use with a rotatable shaft positioned within a supporting structure which includes a bearing body having an internal bore extending partially therethrough and defining a cylindrical bearing surface for receiving and supporting the rotatable shaft, an external bearing surface having a radially inwardly tapered leading edge for engaging a complementary first abutment surface defined within an interior cavity of the supporting structure, an annular thrust collar projecting beyond the leading edge of the external bearing surface for engaging a corresponding second abutment surface defined within the interior cavity of the supporting structure, and an annular retention flange depending from the periphery of the bearing body to retain the bearing body within the interior cavity of the supporting structure.Type: GrantFiled: June 6, 1997Date of Patent: December 29, 1998Inventor: Frank Dalessandro
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Patent number: 5813768Abstract: A thermoplastic bearing liner having compliant and compensating structure to adjust for a misalignment of a shaft insertably received therein. The bearing liner comprises a hollow, substantially cylindrical shaped member having two ends and an intermediate portion. A flange extends circumferentially and projects radially from at least one of the two ends. A flexible frustoconical member is mounted adjacent a distal end of the flange and extends circumferentially from the flange.Type: GrantFiled: May 16, 1997Date of Patent: September 29, 1998Assignee: Thomson Industries, Inc.Inventor: Gregory S. Lyon
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Patent number: 5531522Abstract: A fluid dampened support for a bearing such as a tilt pad bearing or a rolling element bearing such as a ball bearing, needle bearing, roller bearing and the like. The fluid dampened support includes a network of closely spaced beams which act as structural springs which support the outer race of the roller bearing for movement in any direction. The spring rate or constant of these structural springs can be caused to change after a selected amount of deflection. The amount of deflection needed to cause the change in spring rate can be adjusted to suit the particular application. A liquid is provided in the spaces between the beams to dampen movement of the pads. The damping rate can be made to change with movement of the pads. The structure and space between the beams is designed so as to provide virtually any reasonable damping characteristics.Type: GrantFiled: October 13, 1994Date of Patent: July 2, 1996Assignee: KMC, Inc.Inventors: Russell D. Ide, Fouad Y. Zeidan
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Patent number: 5401104Abstract: A rod guide assembly for rotary applications has a stationary housing and a rotating housing. The stationary housing has an exterior, an interior, a first end and a second end. A primary stationary annular bushing is positioned in the interior at the first end of the stationary housing. The primary bushing has an interior bore. A bearing is provided having an outer race, and an inner race with an inner circumference. The outer race of the bearing is non-rotatably fixed to the stationary housing. A secondary annular rod guide is positioned in the interior at the second end of the stationary housing. Annular packing is disposed within the interior of the stationary housing to provide a fluid seal. The cylindrical rotating housing has an exterior, an interior, a first end and a second end. The exterior has a neck portion adjacent the second end. The neck is adapted to engage the inner circumference of the inner race of the bearing disposed at the first end of the stationary housing.Type: GrantFiled: January 13, 1994Date of Patent: March 28, 1995Inventor: Hille Newton
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Patent number: 5381285Abstract: A bearing arrangement (15), in particular for a device (1) with a rotatable disc or a magnetic-tape apparatus (101) has a shaft (19) which is connected to an auxiliary member (23) via a hinge (21). The shaft (19) is radially supported and the auxiliary member (23) is axially supported. As a result of the connection via a hinge (21) the auxiliary member (23) can align itself without the alignment of the shaft (19) being influenced, so that the requirement imposed on the accuracy of the bearing surfaces of the shaft (19) relative to the bearing surfaces of the auxiliary member (23) can be less stringent.Type: GrantFiled: May 9, 1994Date of Patent: January 10, 1995Assignee: U.S. Philips CorporationInventor: Marinus J. J. Dona
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Patent number: 5340220Abstract: A pivoting bearing for mounting pull rods in motor vehicles, which includes a metallic housing (2) with a cylindrical inner jacket, a metallic inner part (1), and an elastomer body (3) arranged between the housing (2) and the inner part (1). The elastomer body (3) compensates axial, radial, and cardanic movements of the housing (2) in relation to the inner part (1) by molecular deformation. The elastomer body (3), which cooperates with the cylindrical inner jacket of the housing radially in the outward direction, is arranged adheringly on the inner part (1) and is pre-tensioned axially between plate rings (4, 5). The external diameter of the plate rings (4 and 5) is undersized compared with the internal diameter of the inner jacket of the housing. A sliding surface is obtained on the cylindrical outer jacket of the elastomer body under the axial pre-tensioning of this. This sliding surface permits rotary movement of the inner part (1) in the housing (2).Type: GrantFiled: November 12, 1992Date of Patent: August 23, 1994Assignee: Lemforder Metallwaren AGInventors: Ruediger Sprang, Andreas Vossel, Werner Schmudde, Reinhard Buhl
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Patent number: 5235227Abstract: A noise and/or vibration damping system for an electric motor such as for use with a sound motion picture camera. In a preferred embodiment the electric motor includes a rotor shaft supported at either end thereof by bearings, a magnetic field assembly fixed to the motor case and concentrically positioned between the rotor shaft and the motor case, an armature winding assembly fixed to the rotor shaft concentrically positioned between the motor case and the magnetic field assembly, wherein the bearing means are supported upon the magnetic field assembly and are vibrationally isolated therefrom by plurality of O-rings concentrically positioned between the bearing means and the magnetic field assembly, the O-rings being axially spaced along the magnetic field assembly.Type: GrantFiled: January 23, 1991Date of Patent: August 10, 1993Assignee: Panavision International L.P.Inventor: Carl F. Fazekas
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Patent number: 5154516Abstract: A self-adjusting pivot mechanism for a car steering column arranged to take up wear and backlash, the mechanism including a housing bracket 9 for receiving a steering column 10, the housing having opposed symmetrical tapered trunnions 9A received in corresponding female tapered portions 11A of housing support brackets 11. The male and female tapered portions are resiliently urged towards one another by means of sprag washers 12 secured on extremities of the tapered portions 11A, which washers draw the parts 9A and 11A towards one another. Relative rotational movement between the portions 9A and 11A is accommodated.Type: GrantFiled: May 6, 1991Date of Patent: October 13, 1992Assignee: The Torrington CompanyInventor: Gerald A. Speich
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Patent number: 5061087Abstract: A bearing apparatus for permitting axial rotational and angular movement of a doctor journal of a papermaking machine, includes a housing which defines a cylindrical bore for the reception therein of the doctor journal. An annular bearing ring defines an inner and an outer surface with the outer surface being cylindrical and having a diameter slightly less than the diameter of the bore such that when the ring is disposed within the bore, axial sliding of the bearing ring within the bore is permitted. A sleeve is disposed within the bearing ring with the sleeve defining an internal channel for supporting the doctor journal. The sleeve also defines an external face which closely conforms to the inner surface of the bearing ring such that angular movement of the sleeve within the bearing ring is permitted while axial movement of the sleeve relative to the bearing ring is inhibited.Type: GrantFiled: October 15, 1990Date of Patent: October 29, 1991Assignee: Beloit CorporationInventors: Arnold J. Roerig, John F. Schmaeng, Frank J. Wywialowski
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Patent number: 4907814Abstract: A self-adjusting bearing comprises an elongate body portion of compressible, resilient material of truncated conical shape with a central cylindrical bore formed therethrough. A plurality of independent segments of wear-resistant material are secured to the inner surface of the body portion to form a liner adapted to make bearing contact with a component received within the bore. The segments are each of arcuate transverse section, the side edges of adjacent segments being spaced from one another and the arrangement being such that, on location of the bearing in an associated, correspondingly-tapered bore whereby the body portion is radially compressed, the radial forces established within the body portion urge the segments of the liner into bearing contact with the component within the bore of the body portion.Type: GrantFiled: February 23, 1989Date of Patent: March 13, 1990Assignee: George Blair Public Limited CompanyInventor: Peter M. Foster
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Patent number: 4806025Abstract: Automatic self-aligning ball metals rotatably mounted at both end parts of a rotor shaft in an electric motor are supported by holding devices. The holding device is designed in the form of a disc having a flange portion around the outer periphery thereof. It is formed with a plurality of pawls having different intensities of resilient force which extend in the radial direction from an area located in the proximity of the flange portion. The pawls having a higher intensity of resilient force and the pawls having a lower intensity of resilient force are alternately arranged in the peripheral direction of the holding device and the inner part of each of the pawls is bent at a certain inclination angle. The pawls having a lower intensity of resilient force are adapted to come in contact with the metal ball earlier than the pawls having a higher intensity of resilient force. Each of the pawls having a higher intensity of resilient force has a width wider than the pawls having a lower intensity of resilient force.Type: GrantFiled: December 8, 1987Date of Patent: February 21, 1989Assignee: Mitsuba Electric Manufacturing Co., Ltd.Inventors: Akira Kamiyama, Yoshimasa Kimura, Yukiteru Hosoya
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Patent number: 4761949Abstract: A bearing assembly is disclosed for supporting the downstream end of a shaft for a position indicating system for a turbofan thrust reverser. The bearing assembly has a pair of support arms supporting a bushing which is attached to the downstream end of the shaft. The arms are oriented in a plane substantially transverse to the longitudinal axis of the shaft and are clamped to a mounting bracket by spring biased mounting plates. Belleville springs are utilized to provide the biasing force and may be adjusted to compensate for wear of the system.Type: GrantFiled: October 5, 1987Date of Patent: August 9, 1988Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation (SNECMA)Inventor: Guy E. O. Leclercq
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Patent number: 4755066Abstract: A self-aligning sleeve bearing assembly including a base member having a surface which includes a socket, a retaining member, and a bearing extending into and from the socket and being sandwiched between the base member and retaining member. The bearing includes two opposing halves which are mismatched along a parting line. The retaining member includes two pairs of independently yieldable opposed fingers which provide four independently operating spring retainers which bear against respective surfaces of the opposing bearing halves and operate together to retain the bearing in place yet allow self-alignment of the bearing.Type: GrantFiled: April 13, 1987Date of Patent: July 5, 1988Assignee: The Singer CompanyInventor: Don W. Vermillion
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Patent number: 4738436Abstract: A spring system for resiliently supporting a mass with respect to a base comprises a supporting member mounted for movement and which can be coupled to the mass and is bounded by a portion of a spherical surface which bears against a concentric complementary guiding spherical surface fixed with respect to the base to guide the supporting member to rotate in all directions around the center of the sphere. A circular resilient device is provided in engagement with the supporting member and is supported with respect to the base. The supporting member is coupled to the mass at a point inside the circular resilient device whereby the supporting member is tilted by radial shocks while its spherical surface is guided along the guiding spherical surface and by the deformations of the resilient device as a result thereof, a resilient couple and/or a radial resilient force is developed which tends to move the supporting member into its initial position.Type: GrantFiled: August 13, 1987Date of Patent: April 19, 1988Assignee: Beleggingsmiv. Alex A. Loggers B.V.Inventor: Jan N. H. Loggers
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Patent number: 4718780Abstract: A compound bearing having a shell defining a cylindrical bore in which is installed the bearing inner member, a bearing ring of ultra high molecular weight polymer being disposed within the shell cylindrical bore between the bore surface and the peripheral surface of the inner member. The polymer bearing ring is extruded in strips cut to length and wrapped around the inner member with abutting ends prior to inserting the ring within the shell bore. In structures wherein the inner member is a spherical member or ball, the strip is extruded with a cylindrical groove on at least one surface such as to form a concave spherical surface when wrapped around the spherical peripheral surface of the inner member.Type: GrantFiled: September 2, 1986Date of Patent: January 12, 1988Assignee: O & S Manufacturing CompanyInventor: William H. Trudeau
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Patent number: 4718779Abstract: A compound bearing consisting of an outer and an inner member movable relative to each other and between which are disposed load carrying annular members. The load carrying annular members comprise a pair of deformable plastic rings held between the outer and inner members under compression, and a metallic ring insert disposed between and separating the two deformable rings. The outer member is formed of two cup-shaped tubular members press-fitted over the metallic ring insert.Type: GrantFiled: September 2, 1986Date of Patent: January 12, 1988Assignee: O & S Manufacturing CompanyInventor: William H. Trudeau