Resilient Bearing Surface Patents (Class 384/125)
  • Publication number: 20080168918
    Abstract: This image generating apparatus includes a side plate, mounted on a first side surface of a chassis provided with a print portion, integrally including a bearing, a bracket member mounted on the side plate and a support shaft arranged between the side plate and the bracket member for rotatably supporting a gear member, while a first end of the support shaft is fixedly mounted on the bracket member, and a second end of the support shaft includes a side end surface brought into line contact with the bearing of the side plate.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 17, 2008
    Applicant: Funai Electric Co., Ltd.
    Inventors: Daisuke SHIMIZU, Daisuke Takasaka
  • Patent number: 7390126
    Abstract: An idler arm bracket bearing includes a plurality of inwardly extending fingers to contact the bracket. The fingers deflect toward the bearing body as the fingers contact the bracket, thereby ensuring a full contact fit that provides a tighter joint assembly. Rib members are located between the fingers to center the bracket and limit the resilient deflection of the fingers.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: June 24, 2008
    Assignee: Affinia Group Inc.
    Inventor: Ernest E. Martin
  • Patent number: 7318847
    Abstract: Workpiece with at least one functional face and a layer system deposited on at least a portion of the functional face as well as a structure pattern, which encompasses at least a portion of the layer system and which is comprised of at least one three dimensional micro structure (5) with structure depth S, characterized in that the deposited layer system is deposited with PVD, CVD or combined PCD/CVD processes, and the three dimensional micro structure (5) extends from the surface of the layer system (4) up into the workpiece, such that the latter is uncoated in a lower region of the micro structure (5).
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: January 15, 2008
    Assignee: Oerlikon Trading AG, Trubbach
    Inventors: Orlaw Massler, Christian Wohlrab
  • Patent number: 7267485
    Abstract: The invention is directed to an annular disk for sliding bearing, with a first annular element 12 and a seal 23 arranged on the first end face 17 of the first annular element 12. A second annular element is attached to the second end face 19 of the first annual element 12. The two annular elements 12, 13 are made of different materials.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: September 11, 2007
    Assignee: ZF Friedrichshafen AG
    Inventors: Keit Wagener, Thomas Fangmann, Michael Fangmann
  • Publication number: 20070164626
    Abstract: A fuel-cell compressed-air supplying device 6 includes a centrifugal compressor 12 provided in a casing 11, and a bearing device 14 for supporting a rotation shaft 13 of the compressor 12. The bearing device 14 includes a pair of radial foil bearings 21 and 22 provided coaxially with the rotation shaft 13 for supporting the rotation shaft 13 in the radial direction, and an axial magnetic bearing 23 facing to the rotation shaft 13 in the axial direction for supporting the rotation shaft 13 in the axial direction. Axial electromagnets 24 and 25 of the axial magnetic bearing 23 are integrated with the radial foil bearings 21 and 22, respectively.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 19, 2007
    Applicant: JTEKT Corporation
    Inventors: Manabu TANIGUCHI, Hirochika Ueyama, Yasukata Miyagawa
  • Patent number: 7182517
    Abstract: An anti-vibration device for a motor bearing at least comprises an axial barrel core, a shaft and a shock retard piece. The axial barrel core has a recess at the bottom thereof with the recess having a flat top. A bearing is received in the axial barrel and the shock retard piece is placed on the top of the recess so that a space is formed between the shock retard piece and the recess available for the shock retard piece being deformed. The shaft is movably attached to the barrel core to contact with shock retard piece. When the shaft rotates, vibration can be retarded to allow the shaft providing a steady rotation by way of support of the shock retard piece.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: February 27, 2007
    Assignee: Asia Vital Component Co., Ltd.
    Inventors: Wen-Hao Liu, Hung-Erh Tai
  • Patent number: 7077573
    Abstract: 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: Grant
    Filed: December 5, 2002
    Date of Patent: July 18, 2006
    Assignee: Tribotek, Inc.
    Inventors: Nam P. Suh, Matthew Sweetland
  • Patent number: 6960023
    Abstract: 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: Grant
    Filed: December 31, 2003
    Date of Patent: November 1, 2005
    Assignee: Tek-Chain Development Inc.
    Inventors: Chung-Yung Hsu, Kuo-Ying Wu
  • Patent number: 6918701
    Abstract: A synthetic resin-made sliding bearing (1) includes a synthetic resin-made lower casing (2), a synthetic resin-made upper casing (3) superposed on the lower casing (2), a synthetic resin-made disk-shaped thrust sliding bearing piece (4) disposed between the upper and the lower casings (3) and (2), and a synthetic resin-made cylindrical radial sliding bearing piece (5) disposed between the upper and the lower casings (3) and (2).
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: July 19, 2005
    Assignee: Oiles Corporation
    Inventors: Atsushi Ueno, Kazuyuki Miyata
  • Patent number: 6679501
    Abstract: A motor or bearing which incorporates the use of a capillary seal adjacent a bearing race between the shaft and surrounding hub or housing. The seal may take a plurality of forms, including a straight capillary seal; a seal formed between the housing and a seal ball having different radius of curvatures (preferably with the housing internal surface having a larger radius); or a centrifugal capillary seal comprising a male cone supported on a fixed or rotating shaft, and a female cone supported on a housing. The use of a capillary seal rather than ferrofluid seal should also provide a reduction in resistance across the seal gap compared to a ferrofluid seal.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: January 20, 2004
    Assignee: Seagate Technology LLC
    Inventors: Robert M. Pelstring, Raquib U. Khan, Klaus Kloeppel, Alan L. Grantz, Norbert S. Parsoneault, Marten F. Byl, Hans Leuthold
  • Patent number: 6663288
    Abstract: A bearing structure includes a pivot shaft and an elastomer for connecting to a pivot device formed from a first and a second connection member. The pivot shaft includes a connecting portion pivotally connected to the first connection member, an eccentric middle portion, and a bearing portion fixedly connected to the second connection member. The elastomer is mounted on the first connection member to contact with the eccentric middle portion of the pivot shaft, such that a tightness of contact between the elastomer and the eccentric middle portion is adjustable via an adjusting screw to locate the first and second connection members in place after they have been turned relative to each other. An elastic element is held between the pivot shaft and the first connection member to adjust a torsional force of the pivot device when the second connection member is turned relative to the first connection member.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: December 16, 2003
    Inventor: Chin-pao Chang
  • Publication number: 20030174919
    Abstract: 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: Application
    Filed: December 5, 2002
    Publication date: September 18, 2003
    Applicant: Tribotek, Inc.
    Inventors: Nam P. Suh, Matthew Sweetland
  • Publication number: 20030174918
    Abstract: 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: Application
    Filed: December 5, 2002
    Publication date: September 18, 2003
    Applicant: Tribotek, Inc.
    Inventors: Nam P. Suh, Matthew Sweetland
  • Patent number: 6592263
    Abstract: An efficient bearing includes jutting anchor flanges directly extending from a front end of the bearing for coupling with an air fan spindle housed in the bearing. The air fan spindle thus may have a precise axis and less floating or sinking during rotation to achieve better balance. The bearing barrel further has a plurality of plane surfaces formed on the exterior peripheral surface to couple with the air fan seat securely to increase air fan rotation efficiency.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: July 15, 2003
    Inventor: Wen-Hao Chuang
  • Publication number: 20030118257
    Abstract: Disclosed herewith is a foil journal bearing utilizing a plurality of piezoelectric actuators. The foil journal bearing is provided at an interior surface of its bearing housing with a plurality of foils or a top foil for supporting a rotating shaft. The foil journal bearing includes a plurality of piezoelectric actuator devices embedded in an inside portion of the bearing housing while coming into contact with and supporting the foils or foil to increase stiffness and damping coefficient of the bearing at critical speeds of the rotating shaft. Each of the piezoelectric actuator devices is comprised of a piezoelectric actuator inserted into one of dimples formed on the interior surface of the bearing housing and provided with at least a piezoelectric actuating element and an elastic spring interposed between a bottom of the piezoelectric actuator and a bottom of the dimple, so as to increase stiffness and damping coefficient of the bearing by application of voltage to the piezoelectric actuator.
    Type: Application
    Filed: July 25, 2001
    Publication date: June 26, 2003
    Inventors: Yong Bok Lee, Chang Ho Kim, Nam Soo Lee, Tae Ho Kim
  • Publication number: 20030007706
    Abstract: 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 locally compliant 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 perpendicular to the base through an opposed bearing. Additionally, the plurality of support members allow sliding contact 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. Also, the support members maintain the distance between the opposed bearing when any foreign particle or asperity causes one or more of the support members to flex independently on a localized basis.
    Type: Application
    Filed: June 11, 2002
    Publication date: January 9, 2003
    Inventors: Nam P. Suh, Matthew Sweetland, Donald D. Bowers
  • Patent number: 6257085
    Abstract: An electromotive drive mechanism for a body of furniture, includes a worm drive which is activated by a motor and includes a worm received in the casing and a worm wheel in engagement with the worm. Received in the casing is a support body which is closely fitted around the worm and includes a receiving opening for engagement by the worm wheel.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: July 10, 2001
    Assignee: Dewert Antriebs- und Systemtechnik GmbH & Co. KG
    Inventors: Ralf Bokämper, Andreas Roither
  • Patent number: 6238093
    Abstract: A bearing assembly for supporting a drive shaft includes a cylindrical housing, and a plurality of elastomeric bearing sections disposed within the housing. The bearing sections are bonded to the housing by first applying a pattern of alternating parallel lines of adhesive to the inner diameter of the housing, installing the bearing sections, and inflating an airbag within the housing to thereby apply a uniform radial pressure to the inside of the housing while the adhesive cures.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: May 29, 2001
    Assignee: Duramax Marine, LLC
    Inventors: Roy Lee Orndorff, Jr., Philip Paul Brady, Warren Keith Langston
  • Patent number: 6131684
    Abstract: An improved motorcycle frame (20) has a first part (21) and a second part (23) mounted for pivotal movement relative to the first part about an axis (x--x). The improvement includes a cushioned bushing (17) operatively arranged between the two frame parts for enabling pivotal movement therebetween and for damping vibrations transmitted therebetween. The bushing has a rod (45) substantially coincident with the pivotal axis; a first cushion (27) provided with a blind recess for receiving one marginal end portion of the rod; a second cushion (27') provided with a blind recess for receiving another marginal end portion of the rod; and compression means (37) for exerting axial forces on the cushions to create forces between the cushions and the rod marginal end portions. In a preferred embodiment, the cushions are made of dual-durometer urethane materials.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 17, 2000
    Inventor: Philip Ticknovich
  • Patent number: 6132095
    Abstract: An apparatus for reliably and efficiently propelling a printing substrate across a printing platen by use of the known roller/nip roller configuration wherein an improved, unitary slider bearing preferably formed of low friction material is coupled to an axial shaft at two points of contact to a upper crown of a slider bearing. The improved bearing is preferably constructed of teflon, or similar low friction material, impregnated resin and formed to create a friction fit in an aperture in a printing platen of a print engine. The improved bearing allows use of a lower cost, less-toleranced axial drive shaft members and eliminates use of typical ball-bearing style bearing assemblies as well as greatly reduces assembly time of the roller, nip roller, axial shaft combination during initial build of the print engine.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: October 17, 2000
    Assignee: MacDermid Incorporated
    Inventor: Kevin R. Crystal
  • Patent number: 5984525
    Abstract: The present invention relates to an oil-retaining bearing for a rotary machine. In the oil-retaining bearing for a rotary machine according to the present invention, a first lock section is provided in a bearing housing; a first thrust spacer is relatively rotatably mounted in the vicinity of the end face of the oil-retaining bearing for a rotary machine; the first thrust spacer is provided with a second lock section, in engagement with the first lock section; a second thrust spacer is relatively non-rotatably mounted on the rotating shaft; and a third thrust spacer having elasticity is relatively rotatably mounted on the rotating shaft; the third thrust spacer being interposed between the first thrust spacer and the second thrust spacer.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: November 16, 1999
    Assignee: Japan Servo Co., Ltd.
    Inventors: Junichi Ikeda, Naoya Ito, Masahiro Mimura, Takeaki Tamabuchi
  • Patent number: 5938344
    Abstract: Temperature compensating bearings with bearing beams resiliently mounted to an outer shell to optimize load capacity for varying operating conditions, for example, bearings for precisely supporting a shaft for axial and rotational motion under various temperature, load, wear, and tolerance conditions. The bearing is capable of maintaining a contact fit despite wear, and is self-aligning, simple to manufacture, and operates quietly. The bearing is made up of an outer shell, a plurality of circumferentially spaced arcuate beams each connected to the outer shell by two radially extending support members located at either end of the beams, and a plurality of lubricant channels. The center of each beam is designed and configured to provide for an interference fit with the shaft, while the ends of each beam maintain a slight clearance with the shaft. As the outer shell contracts or expands due to temperature changes, the radial support members move towards or away from the shaft, respectively.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: August 17, 1999
    Inventor: Jeffrey M. Sabin
  • Patent number: 5833370
    Abstract: The present invention relates to an oil-retaining bearing for a rotary machine. In the oil-retaining bearing for a rotary machine according to the present invention, a first lock section is provided in a bearing housing; a first thrust spacer is relatively rotatably mounted in the vicinity of the end face of the oil-retaining bearing for a rotary machine; the first thrust spacer is provided with a second lock section, in engagement with the first lock section; a second thrust spacer is relatively non-rotatably mounted on the rotating shaft; and a third thrust spacer having elasticity is relatively rotatably mounted on the rotating shaft; the third thrust spacer being interposed between the first thrust spacer and the second thrust spacer.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: November 10, 1998
    Assignee: Japan Servo Co., Ltd.
    Inventors: Junichi Ikeda, Naoya Ito, Masahiro Mimura, Takeaki Tamabuchi
  • Patent number: 5768974
    Abstract: A swash plate type compressor includes an improved thrust bearing for axially supporting the swash plate. The bearing is of a composite type, and includes at least two elastically deformable slide bearing elements. The swash plate and the cylinder block each have seat portions, which are of different diameters. The two bearing elements are compressed between the respective seat portions into an elastically deformed conically-shaped state, with the amount of conical deformation depending upon the amount of axial compression that is applied to the bearing by tightening the assembly bolts of the compressor. In operation, one of the conically shaped slide bearing elements is pressed outwardly against the other by centrifugal force as the compressor shaft rotates. During start up and low speed operation of the compressor, this centrifugal force will have minimal effect, and the bearing elements will rotate with respect to each other, keeping internal frictional resistance low.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: June 23, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Hayato Ikeda, Tomoji Tarutani, Masanobu Yokoi, Hiromi Michiyuki, Hirofumi Sato, Yasunori Ueda
  • Patent number: 5711185
    Abstract: The invention relates to apparatus for driving a door or the like guided in t least two guides using a drive (1) located in a channel formed as a guide track (2) and which consists of at least one turn-around pinion (5), a chain extending over drive pinion (4) and turn-around pinion (5) and at least one carrier element for a door panel or the like attached to the chain. A structurally simple apparatus which is installable in simple manner is achieved by forming the drive pinion (4), the turn-around pinion (5) and the chain together with the guide track (2) as completely preassembled unit (1).(FIG.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: January 27, 1998
    Assignee: Marantec Antriebs - und Steuerungstechnik GmbH & Co. Produktions KG
    Inventor: Michael Hormann
  • Patent number: 5711586
    Abstract: A track bushing for use with a track assembly of a track-type machine includes a generally cylindrical member having ends adapted for mounting in opposing end portions of a track link and a longitudinal bore extending between the ends. The inner surface of the bore defines first and second load bearing portions at each of the ends. Each of the first load bearing portions define a first conical surface tapering radially inward from each of the ends at a first angle, and each of the second load bearing portions define a second conical surface tapering radially inward from each of the first conical surfaces at a second angle. In the bushing's assembled state, the first angle is in the range of 0.09 degrees to 0.18 degrees and the second angle is in the range of -0.01 degrees to 0.01. In the bushing's free state, the first angle is in the range of 0.19 degrees to 0.27 degrees and the second angle is in the range of 0.06 degrees to 0.08 degrees.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: January 27, 1998
    Assignee: Caterpillar Inc.
    Inventors: Peter W. Anderton, Lawrence J. Cobb, Joseph D. Groves, Dennis R. Shookman
  • Patent number: 5671909
    Abstract: A rod-damper combination comprising an oscillating rod member and a dynamic damper mounted on the rod member is disclosed. The dynamic damper includes a mass portion having a substantially cylindrical shape, and two elastic support members formed on axially opposite sides of the mass portion to elastically support the mass portion. The oscillating rod member includes a small-diameter portion formed at an axially middle portion thereof, and two large-diameter portions formed on axially opposite sides of the small-diameter portion. Alternatively, the rod member includes a middle portion, and two tapered portions on axially opposite sides of the middle portion. The two elastic support members of the dynamic damper are mounted on the two large-diameter or tapered portions of the oscillating rod member, respectively.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: September 30, 1997
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Masaaki Hamada, Takahiro Aoi
  • Patent number: 5664888
    Abstract: A bearing for supporting a load for axial and rotational motion relative to a shaft is disclosed as including an outer shell having a cylindrical inner wall supporting a plurality of circumferentially spaced arcuate bearing pads for engaging the shaft. Each bearing pad includes a pair of elastically deformable lateral tip portions arranged for interference fit with the shaft to exert a static preload on the shaft, and a mid portion intermediate the lateral tip portions arranged for clearance fit with the shaft. A plurality of lubricant channels communicate with the shaft through gaps between the separate bearing pads.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: September 9, 1997
    Assignee: Leica Inc.
    Inventor: Jeffrey M. Sabin
  • Patent number: 5609421
    Abstract: The invention relates to a wrapped bearing bush of elastic material as a bearing for a journal or a shaft for pressing into a housing bore. The invention also relates to a journal or shaft connection comprising a first and a second component, wherein the first component carries a bearing bush and the second component is connected to a journal or shaft mounted in the bearing bush.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: March 11, 1997
    Assignee: Glyco-Metall-Werke, Glyco B.V. & Co. KG
    Inventors: Heinz Schulze-Eyssing, Erhardt Mundil
  • Patent number: 5593144
    Abstract: A rod-damper combination comprising an oscillating rod member and a dynamic damper mounted on the rod member is disclosed. The dynamic damper includes a mass portion having a substantially cylindrical shape, and two elastic support members formed on axially opposite sides of the mass portion to elastically support the mass portion. The oscillating rod member includes a small-diameter portion formed at an axially middle portion thereof, and two large-diameter portions formed on axially opposite sides of the small-diameter portion. Alternatively, the rod member includes a middle portion, and two tapered portions on axially opposite sides of the middle portion. The two elastic support members of the dynamic damper are mounted on the two large-diameter or tapered portions of the oscillating rod member, respectively.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: January 14, 1997
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Masaaki Hamada, Takahiro Aoi
  • Patent number: 5531524
    Abstract: A resilient annular bearing positionable around a rotating shaft which self-adjustingly stabilizes the shaft with respect to a sleeve in which the shaft rotates. The bearing has opposite undulating surfaces, made up of a series of alternating peaks and valley, which provide resiliency. The opposite undulating surfaces extend radially, axially or obliquely to provide radial or axial stabilization or both. The peaks may be plateaued or shaped like a truncated pyramid.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: July 2, 1996
    Assignee: Kohler Co.
    Inventor: Douglas J. Brouwer
  • Patent number: 5522666
    Abstract: A leaf spring is inserted into a holding groove defined in a holder of a bearing device from end-opened portions. Next, a shaft is inserted into the holding groove so that a small-diameter portion is supported by shaft holes. As a result, arcuate portions of the leaf spring are brought into surface contact with the outer peripheral surface of the small-diameter portion of the shaft and hold the small-diameter portion so that the small-diameter portion is enveloped from both sides. The arcuate portions are pressed by a plurality of ribs. Since the leaf spring is pressed by wall surfaces of the holding groove at all times, a frictional force between the leaf spring and the shaft is kept constant and a resisting torque is stabilized.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: June 4, 1996
    Assignee: Nifco Inc.
    Inventor: Tsutomu Tanaka
  • Patent number: 5518820
    Abstract: A bearing includes a bearing component, such as a bearing race, having a bearing contact surface. A region at the bearing contact surface is made of titanium aluminide, preferably an alpha-2 or gamma titanium aluminide. A case-hardened layer present at the surface of the titanium aluminide region increases the hardness and wear resistance of the titanium aluminide at elevated temperature. The case-hardened layer is preferably formed by diffusing carbon into the surface of the titanium aluminide from a gaseous medium, at elevated temperature land at ambient or reduced pressure.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: May 21, 1996
    Assignee: General Electric Company
    Inventors: Benjamin L. Averbach, deceased, Jon C. Schaeffer, Mark A. Rhoads, Joseph A. Heaney, III
  • Patent number: 5492415
    Abstract: The present invention pertains to a plain bearing for chassis parts in motor vehicles, in which a sliding layer, which is made of plastic and has lubrication bore reliefs on its outer jacket, is sprayed in a firmly adhering manner onto a metallic inner part in a mold, and an elastomer body arranged in a metallic receiving bush surrounds the inner part with the sliding layer in a slidingly movable manner. Recesses, whose side wall has a profile undercut in the direction of removal from the mold, are provided on the circumference of the inner part.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: February 20, 1996
    Assignee: Lemforder Metallwaren AG
    Inventors: Ernst-Gunter Jordens, Helmut Kammel
  • Patent number: 5476326
    Abstract: A synthetic resin bearing comprised of synthetic resin-made upper and lower bearing cases and a synthetic resin-made bearing member having a disk-shaped thrust bearing piece and a hollow-cylindrical radial bearing piece with a radially extending slit. The bearing member is disposed such that the radial bearing piece is kept in sliding contact with an outer peripheral surface of a hollow cylindrical portion of the lower bearing case, and the thrust bearing piece is kept in sliding contact with a bottom of an annular recess formed in the lower bearing case. The upper bearing case is assembled to the lower bearing case such that an annular engaging hook portion is snappingly fitted over an annular engaging projecting portion of the lower bearing case.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 19, 1995
    Assignee: Oiles Corporation
    Inventors: Atsushi Ueno, Tetsuya Aida, Kazuo Kato
  • Patent number: 5439295
    Abstract: An idler wheel assembly is provided which is particularly suitable for manufacture and assembly in mass production. The assembly includes an idler wheel which has a tapered shaft that is sized to closely mate with a similarly sized and shaped bore in a support member. At the distal end of the tapered shaft is one or more resilient retention features which secure the shaft within the bore, yet enables the shaft to freely rotate within the bore such that the idler wheel can be rotated relative to its support member. The shaft, retention features and bore are sized such that the adequacy of the assembly can be determined in-process due to the tendency for the idler wheel to become dislodged from its support member during subsequent handling unless the retention features are properly deployed as a result of the tapered shaft being completely assembled with its bore.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: August 8, 1995
    Inventor: Daniel J. Mikolaizik
  • Patent number: 5358340
    Abstract: A single piece, elongate sleeve bearing or bushing device is suitable for use in a bushing hole of a wide free spinning member, such as in the deep bushing hole of a long idler roller, a wide idler pulley, a wide idler gear or the like, to form at least a pair of axially spaced bearing surface regions about a shaft. The single piece bushing device has a thin generally cylindrical wall, an oversized central bore, and a plurality of axially spaced, oversized exterior surface regions including one located at each end of the thin wall. The raised regions are interspaced by a low region, and are compressed locally upon assembly in order to press fit the bushing device into the deep bushing hole of the free spinning member. Such compression causes radially aligned regions of the interior surface of the central bore to close in on the shaft, thereby forming a plurality of axially spaced and pre-aligned bearing surface regions about the shaft.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: October 25, 1994
    Assignee: Xerox Corporation
    Inventor: Henry T. Bober
  • Patent number: 5340220
    Abstract: 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: Grant
    Filed: November 12, 1992
    Date of Patent: August 23, 1994
    Assignee: Lemforder Metallwaren AG
    Inventors: Ruediger Sprang, Andreas Vossel, Werner Schmudde, Reinhard Buhl
  • Patent number: 5288152
    Abstract: A replacement bearing is provided for use in rebuilding the nominally disposable toner cartridges that are commonly used in popularly priced electrostatic printers and copiers. When the bearing is rotated into its final position about the shaft of a toner roller, an oversize portion of the bearing is forced into a position that ensures that both the bearing retainer and the toner roller are restrained in a precise alignment. A slot, that has a predetermined gap when installed, is preferably provided in the bearing, and a decrease of the width of this gap is indicative of bearing wear. The precise alignment and wear indication means that are provided by the new bearing allow an operator to rebuild a toner cartridge that had been demonstrating the "right side problem", and to subsequently monitor the wear of a replacement bearing so as to prevent recurrence of copy degradation.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: February 22, 1994
    Inventor: Wilkins L. Davies
  • Patent number: 5236148
    Abstract: A connection between a thumb button and a housing on a fishing reel. A socket is provided on the housing and has a curved seat. A pin is provided on the thumb button for reception in the socket and has a curved surface acting against the curved socket seat to guide pivoting of the pin in the socket and thereby rotation of the thumb button about a first axis. A projection is provided extending radially outwardly from the curved pin surface with respect to the first axis to take up clearance between the curved pin surface and the curved socket seat.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: August 17, 1993
    Assignee: Zebco Corporation
    Inventor: David E. Valentine
  • Patent number: 5145298
    Abstract: A high speed spindle is provided which includes a rotor driven by an electric motor and provided with tapered journals received in tapered rubber bearings. Lubricating water flows to the bearings through metered openings in the journals, flowing from the openings through reverse spiral grooves in the journals which have diminishing cross section. The water flowing through the rotor also cools the rotor, as well as the collet driven by the rotor and a tool held by the collet. Rubber seals around the rotor shaft wear to a zero clearance during run-in for confining the water that exhausts from the bearings. Compressed air is introduced into the spindle to cooperate with the seals in preventing water leakage. The compressed air also reacts against a bladder that is arranged to impose an end load on one of the bearings, which is movable, to urge the bearing toward its journal. The force is varied to increase the bearing end load as rotor speed increases.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: September 8, 1992
    Assignee: Optima Industries, Inc.
    Inventor: William F. Marantette
  • Patent number: 5088884
    Abstract: A rotor having an elongated cylindrical body which surrounds a vertically disposed bearing shaft fixedly secured at its lowermost end to a supporting base, the rotor mounting a bearing pad at its uppermost end positioned to be seated on the upper end of the bearing shaft so as to rotatably suspend the rotor from the bearing shaft, stabilizers being provided to maintain concentric rotation of the rotor about the bearing shaft as the rotor is driven by a flowing fluid.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: February 18, 1992
    Inventor: Frank D. Bergstein
  • Patent number: 5069438
    Abstract: A paper cassette support and associated paper feed for reproduction apparatus are assembled as a module. The paper cassette support is made of a resinous material which includes carbon fibers to minimize the deposit of electrostatic charge and self-lubricating material for providing bearings which are molded unitarily with the side panels. The side panels, when assembled, define a cassette support section and a paper transport section, the cassette support section having shelves and cassette retaining springs molded therein. Paper transport slots are molded into step portions of the side panels, as are bearings and spring retainers for shafts and spindles supporting pairs of rollers. An associated feed drive includes output shafts for rotating D-rollers that frictionally advance paper one sheet at a time from paper stacks in cassettes received in the paper cassette support section.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: December 3, 1991
    Assignee: Eastman Kodak Company
    Inventors: Carl T. Urban, James B. Gahan
  • Patent number: 5059039
    Abstract: A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve (1) is magnetized in axial direction. For causing a hydrodynamic lubrication and an increased cooling effect the sleeve (1) on the inner side has axial channels (7) and axial recesses (9) on the outer side thus that the magnetic fluid (3) by the axial magnetic field around the sleeve (1), can be given a circulating motion along the inner and outer side of the sleeve.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: October 22, 1991
    Assignee: SKF Nova AB
    Inventor: Rune Adolfsson
  • Patent number: 5033871
    Abstract: A hydrodynamic bearing constructed entirely of non-newtonian fluidic materials such as rubber, plastic and the like. The bearing is extrudable and includes a bearing pad support structure and a plurality of bearing pads formed with bearing pad support structure. The bearing pads may be formed of a material which is softer than the support structure. The bearing may also include a number of deflection control members fused to the bearing pads and/or the bearing pad support structure.The method of making the bearing inlcudes the steps of extruding one or more materials to form an uncured tubular extrusion, curing the tubular extrusion, cutting the tubular extrusion into bearing segments and sizing the bearing segments by machining the individual segments to the desired inner and outer diameters.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: July 23, 1991
    Inventor: Russell D. Ide
  • Patent number: 4930184
    Abstract: A hinge assembly means for connecting a float to a base includes a male member means connected to one of the base and the float having a cylindrical outwardly extending boss and a female member means connected to the other of the base and the float having a cylindrical, inwardly-extending recess. A resilient, rubber-like bearing sleeve means encircles and engages the outer circumference of the boss and is of a thickness to fit between the boss and the recess to rotatably attach the recess about the outer circumference of the sleeve.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: June 5, 1990
    Inventor: Donald J. Kristmanson
  • Patent number: 4916749
    Abstract: A bushing for rotatably supporting a bar-shaped suspension link comprises an elastomeric body having a central axis and including an axial bore adapted to receive the suspension link therethrough. The bore includes a circumferential surface having projected surface portions and recessed surface portions, the projected surface portions projecting radially inwardly to provide radial clearance between the suspension link and the recessed surface portions. Preferably, the projected surface portions include a plurality of first and second ridges projecting radially inwardly. The first ridges are substantially parallel to the central axis of the elastomeric body and intersect the second ridges at substantially right angles to define therebetween the recessed surface portions. The preferred embodiment of the bushing of this invention further comprises a double-knit fabric liner covering the circumferential surface of the bore of the body.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: April 10, 1990
    Assignee: The Pullman Company
    Inventors: Henry F. Urban, Jay W. Thornhill
  • Patent number: 4880318
    Abstract: A slidable vibration-isolating rubber member such as a stabilizer bushing or an eye bushing, interposed between two members such that the rubber member is slidable relative to at least one of the two members. The rubber member is formed from a rubber composition which comprises 100 parts by weight of a rubber material, and 2-20 parts by weight of a silicone oil.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: November 14, 1989
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Akihiro Shibahara, Takehiko Taguchi, Akira Uehara, Koji Shinohara, Hiroshi Kawaguchi
  • Patent number: 4806024
    Abstract: A rotatably supporting structure is composed in combination of a raised portion and its matching annular recess. The raised portion is provided on either the outer circumferential surface of a shaft, which is adapted to be fixed at one end thereof on a fixed part, or the inner circumferential surface of a central bore of a member to be supported rotatably. The annular recess is formed in either the outer circumferential surface or the inner circumferential surface and is adapted to receive the raised portion therein. A tapered or curved surface is formed on at least one of the raised portion and a portion of the shaft or rotatably supported member defining the annular recess, which portion is brought into contact with the raised portion upon assembly of the rotatably supporting structure. The rotatably supported member is supported at both sides of the raised portion.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: February 21, 1989
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Shinsaku Tanaka, Toshio Yoshimura
  • Patent number: 4805926
    Abstract: A removable self-lubricating plate for the coupling of semi-trailer vehicles includes an aperture having a diameter so that the plate will frictionally engage the pivot pin of a vehicle mounted on the bearing plate of the vehicle so as to pinch the base of the pivot pin and will be held in position by deformation of the self-lubricating plate under its own weight.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: February 21, 1989
    Inventor: Gaby Mamery