Nonjoint, Nonrotating Fulcrum Bearing Patents (Class 384/2)
  • Patent number: 11761435
    Abstract: A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate tilt axis, suitable for supporting the swashplate in a housing of a variable hydraulic axial piston unit, wherein the first cradle bearing zone is inclined with respect to the swashplate tilt axis. A variable hydraulic axial piston unit of the swashplate type including a swashplate which is supported rotatable in the housing of the variable hydraulic axial piston unit at a first bearing zone by a tapered bearing and at a second bearing zone by regular cylindrical cradle bearing or a journal bearing whose axis is aligned with the swashplate tilt axis.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: September 19, 2023
    Assignee: DANFOSS POWER SOLUTIONS GMBH & CO. OHG
    Inventors: Jaromir Tvaruzek, Heiko Laffrenzen
  • Patent number: 11136969
    Abstract: A bearing assembly having an inner race, an outer race, and a plurality of rollers positioned between the inner race and the outer race. A pad is attached to the inner race and a bed is attached to the outer race. A timing mechanism is slidably mounted to the pad and the bed. Preferably the pad and bed are made of plastic and the inner race is embedded within the pad and the outer race is embedded within the bed.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: October 5, 2021
    Assignee: Danfoss Power Solutions, Inc.
    Inventors: Stanislav Smolka, Jaromir Tvaruzek
  • Patent number: 10302073
    Abstract: An axial piston pump including a housing, a cylinder block, and a swash block. The cylinder block is rotatable within the housing about a vertical axis and includes an array of openings in the cylinder block distributed about the vertical axis and an array of pistons reciprocatably movable within the respective openings. The swash block is rotatable about an axis of rotation that is transverse to the vertical axis, and the degree of rotation is configured to control the extent of reciprocation of the pistons as the cylinder block rotates. The swash block has arc shape conical bearing surfaces tilted relative to the axis of rotation that are configured to guide movement of the swash block rotationally about the axis of rotation and prevent movement of the swash block axially along the axis of rotation.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 28, 2019
    Assignee: Parker-Hannifin Corporation
    Inventor: Todd Allen Link
  • Patent number: 9157423
    Abstract: The invention relates to a swashplate pivot bearing (10) in an adjustment unit of a hydraulic axial piston machine (1) with a timing/tracking mechanism (20) for the cage (14) of a roller bearing arrangement (11). The timing/tracking mechanism (20) is in this case distributed to the two end regions (16, 17, 18) of the roller bearing arrangement (11) in such a way that one part is active only during the pivoting of the swashplate (7) in one direction and the other part is active only during pivoting in the other direction. The timing/tracking mechanism (20) is preferably designed in the manner of a slotted-link control with guide tracks (24, 25, 26) and with a guide element (27, 28).
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: October 13, 2015
    Assignee: DANFOSS POWER SOLUTIONS INC.
    Inventor: Jaromir Tvaruzek
  • Patent number: 8998489
    Abstract: A segment rolling bearing for an axial hydraulic pump, which can be integrated in a simple way. The segment rolling bearing has an outer raceway carrier, an inner raceway carrier, a plurality of rolling bodies, and a cage. The rolling bodies are arranged in the cage such that they roll between the outer raceway carrier and the inner raceway carrier in such a way that the outer raceway carrier can be pivoted about a common pivot axis with respect to the inner raceway carrier. The cage is connected to the inner and/or to the outer raceway carrier directly and captively in at least one connecting region, at least in the radial direction with respect to the common pivot axis.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: April 7, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Harald Vornehm, Peter Decker, Michael Pausch, Klaus Drescher
  • Publication number: 20130341912
    Abstract: A bearing plate assembly for a turbine engine fuel injector includes a bearing plate 30, with an opening 80 bordered by a race 82. A swivel ball 90 nests inside the race and is rotatable relative thereto. A lock, which may be a tip bushing 108 resists disengagement of the swivel ball from the race. A fuel injector nozzle 38 extends through an opening 98 in the swivel ball. During engine operation, the ball can swivel inside the race to accommodate rotational movement of the nozzle about lateral and radial axes.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 26, 2013
    Inventors: Keith M. Tanner, Philip J. Kirsopp
  • Publication number: 20130298723
    Abstract: A bearing member for a pedal arm, which is a tubular bearing member which is disposed in a circular mounting hole formed in a plate member that constitutes the pedal arm and through which a connecting shaft having a cylindrical outer peripheral face is passed so as to be rotatable relative to the bearing member, the bearing member includes: a large-diameter tubular portion having an external diameter larger than a diameter of the mounting hole and having a cylindrical inner peripheral face along which the connecting shaft is extended so as to be rotatable relative to the cylindrical inner peripheral face; a small-diameter tubular portion that is formed continuously and integrally with the large-diameter tubular portion in an axial direction of the large-diameter tubular portion, that has a cylindrical outer peripheral face with a diameter smaller than that of the mounting hole, and that has the cylindrical inner peripheral face formed continuously from the large-diameter tubular portion along an overall lengt
    Type: Application
    Filed: October 7, 2011
    Publication date: November 14, 2013
    Inventors: Nobuyuki Kawahara, Masanobu Ichikawa
  • Patent number: 8376615
    Abstract: A pivot bearing having a first bearing surface of hollow cylindrical design, at least in sections. Guided in the first bearing surface is a second bearing surface of hollow cylindrical design, at least in sections. Rolling bodies are arranged between the bearing surfaces. The pivot bearing also has a cage for guiding the rolling bodies, and a slide block to prevent the cage from slipping. A first grove is formed in the first bearing surface and a second grove is formed in the second bearing surface. The groves are inclined transversely with respect to the running direction of the rolling bodies. The opposite inclination of the groves has the result that, if the spacing between the bearing surfaces is neglected, the grooves intersect. The sliding block is guided between the grooves. The cage has a recess that holds the sliding block permitting cage control.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 19, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Klaus Becker, Thomas Winkler, Harald Vornehm, Jan Georgi, Thomas Goerwitz, Alexander Peter
  • Patent number: 8272536
    Abstract: The present invention provides improved retention of O-rings and easier O-ring replacement by using an O-ring retainer in a bar gun. Furthermore, the assembly of the butterfly plates of the bar gun is improved by using molded ball bearing clusters that fit in recesses in the butterfly plates, thus eliminating the welding of the balls to the butterfly plates and the need to purchase such precise and intricately small balls. The O-ring retainer and molded ball bearing cluster are preferably made from bearing quality acetal plastic materials.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: September 25, 2012
    Assignee: Automatic Bar Controls, Inc.
    Inventors: Mojtaba Valiyee, Juha K. Salmela
  • Patent number: 8177100
    Abstract: An apparatus for dispensing a beverage, for use with pressurized sources of one or more fluids, includes a handle having one or more valve chambers; a fluid valve in each valve chamber; one or more butterfly plates, each configured to bias one or more of the valve stems of the valves towards a valve-open position when the butterfly plate is pressed, thus opening fluidic communication from each of the fluid sources to a corresponding discharge opening; and a ball bearing cluster which provides one or more pivot points for the butterfly plates. The ball bearing cluster includes a retainer and at least one ball-shaped projection projecting from the retainer. The ball-shaped projection remains in a substantially fixed position and orientation with respect to both the retainer and the handle when one or more of the butterfly plates is pressed. The ball bearing cluster and butterfly plate may be molded.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: May 15, 2012
    Assignee: Automatic Bar Controls, Inc.
    Inventors: Juha K. Salmela, Mojtaba Valiyee
  • Patent number: 8043006
    Abstract: An axial piston machine of swashplate construction is provided. The axial piston machine has two pivot bearing parts. In order to improve the guiding of a cage segment mounted within a gap between the two pivot bearing parts, a guide element, in the region of its rotary bearing connected to the cage segment is displaceably connected to the cage segment by an elongated guide in a longitudinal direction. The guide member, in the region of its end region connected to the other pivot bearing part, is rotatable by an associated rotary bearing and rigidly connected in the longitudinal direction to one of the two pivot bearing parts.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: October 25, 2011
    Assignee: Brueninghaus Hydromatik GmbH
    Inventors: Reinhold Schniederjan, Jerzy Kreja
  • Publication number: 20110006144
    Abstract: The invention relates to a force transfer system comprising a hydraulic cylinder (1) comprising a piston (10) which can be impinged with hydraulic fluid and a thrust bearing (2) which is in operative contact with the piston, said bearing comprising a first and a second glide surface for exerting a sliding motion. The thrust bearing comprises a pressure space (25) which is connected to the side of the piston (10) impinged with hydraulic fluid by way of at least one hole (11) made in the piston.
    Type: Application
    Filed: February 19, 2009
    Publication date: January 13, 2011
    Inventor: Pedro Guerrero Palma
  • Publication number: 20100278463
    Abstract: A swashplate-type pivot bearing, or an axial piston machine that has the swashplate-type pivot bearing, which ensure reliable operation. The swashplate-type pivot bearing for a hydraulic axial piston machine has a housing section, a swashplate section and a multiplicity of rolling bodies. The swashplate section is pivotably mounted in the housing section by the rolling bodies and the rolling bodies are arranged in a full-roller configuration and/or without a cage in at least one rolling body row. The swashplate-type pivot bearing also has at least one follow-up device for follow-up adjustment and/or synchronization of the rolling bodies, which is arranged and/or formed at an end of the rolling body row. The follow-up device is controlled by a slotted guide.
    Type: Application
    Filed: March 10, 2010
    Publication date: November 4, 2010
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO., KG
    Inventors: Klaus BECKER, Thomas WINKLER, Harald VORNEHM, Peter DECKER
  • Publication number: 20100187051
    Abstract: A rocking bearing outer ring (12) includes an arcuate track member (13) having a track surface on its inner diameter surface, and a flange portion (14) projecting radially inward from each widthwise end portion of the track member (13). In addition, when it is assumed that L1 represents a circumferential length of the track member (13) and L2 represents a circumferential length of the flange portion (14), 0.2?L2/L1?8 is satisfied.
    Type: Application
    Filed: May 21, 2008
    Publication date: July 29, 2010
    Inventors: Akihiko Katayama, Masaru Kuroda, Haniki Yamada
  • Patent number: 7517156
    Abstract: A cradle bearing comprises a circular arcuate outer race arranged in a circular arcuate recessed part provided in a housing, a plurality of rollers arranged along the inner circumferential surface of the outer race and supporting a swash plate swingably, and a retainer for retaining the interval between the rollers. An engagement member and the end face of the retainer in the circumferential direction are in face-to-face contact with each other.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 14, 2009
    Assignee: NTN Corporation
    Inventor: Sadatsune Kazama
  • Publication number: 20090084038
    Abstract: The subject matter of the invention is a device for preventing persons from boarding a vehicle, more specifically a bus, through the open door opening, said device including a stopper system (10) that is pivotal outward from the interior of the vehicle, said stopper system (10) including two rows of a plurality of arms that are arranged on top of one another said arms (20) are individually pivotable toward the outside, said arms (20), which are lying on one plane with respect to one another, being oriented so as to point angularly outward.
    Type: Application
    Filed: August 22, 2007
    Publication date: April 2, 2009
    Applicant: Hubner GmbH
    Inventor: Thorsten Sprenger
  • Patent number: 6719460
    Abstract: An arc-shaped rolling bearing segment (14) comprising a cage (16) and rolling elements (15) for a swash plate pivoting bearing of a hydraulic axial piston machine is characterized in that the cage (16) and the support peg (17) are made as a single piece out of a polymer material, and the support peg (17) is surrounded, at least over a part of its axial length, by a metal ring (18).
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 13, 2004
    Assignee: INA Walzlager Schaeffler oHG
    Inventors: Klaus Becker, Boris Baumann
  • Patent number: 6676294
    Abstract: A rocking bearing is proposed which is low in cost. A raceway is formed on the inner periphery of an arcuate bearing ring. Rolling elements are received in pockets of a retainer provided opposite to the raceway. The bearing ring is formed by pressing a steel plate to reduce the cost and achieve light weight and compactness.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: January 13, 2004
    Assignee: NTN Corporation
    Inventors: Kazuyoshi Harimoto, Masatoshi Niina, Seiji Takahashi, Kousuke Obayashi, Ayumu Yamamoto
  • Patent number: 6467958
    Abstract: Balls are supported between the spherical inner race (5) and the outer race (6) which surrounds one potion of the inner race (6)through the resiliently transformable shell-like retainer (7). By making the inner race (5) and outer race (7), which influence the bearing precision greatly, to be formed in a unit respectively, the bearing precision is increased. For reference, although the retainer is divided, the retainer (7)bears merely the ball holding function and its transformation and the position relation in assembling state do not influence the bearing precision.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: October 22, 2002
    Assignee: Minebea Co., Ltd.
    Inventors: Gen Sasaki, Shinichi Akao, Kennosuke Kariya
  • Patent number: 6308615
    Abstract: A compressor includes a piston and a shoe, which contact and slide on one another. The piston includes a sliding surface, on which a solid lubricant film is formed. The shoe includes a sliding surface that slides on the first sliding surface. A soft film that mainly contains soft metal is formed on the second sliding surface. The solid lubricant that forms the solid lubricant film is a solid lubricant other than a soft metal.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: October 30, 2001
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kenji Takenaka, Keiichi Kato, Hajime Kurita, Hirotaka Kurakake
  • Patent number: 6302585
    Abstract: A two-axis stage assembly includes a generally planar horizontally mounted base plate; a stage plate generally parallel to the base plate, the stage plate having a first axis and second orthogonal axis; a set of spaced bearings depending from a bottom surface of said stage plate, the bearings each having an arcuate bottom surface in rocking contact with a facing support surface of the base plate; a joint attached to the bottom surface of the stage plate and pivotably mounting each bearing, the joint being positioned at the center of curvature of the arcuate bottom surface of the associated bearing; and where an axial movement of the stage plate rocks the bearing arcuate bottom surfaces with respect to the facing support surface of the base plate.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: October 16, 2001
    Assignee: Nikon Corporation
    Inventors: Martin E. Lee, Michael R. Sogard
  • Patent number: 6290482
    Abstract: The technical field of the invention broadly relates to molding systems, and more particularly to a flexible shoe assembly for use in a molding system. The clamp unit of a molding system includes a moving platen and a stationary platen supported by a frame. Tie bars interconnect the moving platen with the stationary platen. The tie bars are secured to the stationary platen and pass through respective openings in the moving platen. Each tie bar is supported and guided within their respective openings by a flexible shoe assembly and wear pad. The flexible shoe assembly has a force redirector for directing force away from a peripheral edge of the wear pad towards a central force area. The flexible shoe assembly also includes a load distributor to distribute the load across the wear pad surface. The flexible shoe assembly includes an upper support that is flexible about a lower support to keep the wear pad in operational contact with the tie bar.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: September 18, 2001
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Pierre Glaesener, Harald Kollmeier
  • Patent number: 6132091
    Abstract: A two-axis stage assembly includes a generally planar horizontally mounted base plate; a stage plate generally parallel to the base plate, the stage plate having a first axis and second orthogonal axis; a set of spaced bearings depending from a bottom surface of said stage plate, the bearings each having an arcuate bottom surface in rocking contact with a facing support surface of the base plate; a joint attached to the bottom surface of the stage plate and pivotably mounting each bearing, the joint being positioned at the center of curvature of the arcuate bottom surface of the associated bearing; and where an axial movement of the stage plate rocks the bearing arcuate bottom surfaces with respect to the facing support surface of the base plate.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: October 17, 2000
    Assignee: Nikon Corporation
    Inventors: Martin E. Lee, Michael R. Sogard
  • Patent number: 6126136
    Abstract: A passive vibration isolating system includes a sliding piece having its lower portion mounted on a base member and a first contact surface defined between the lower portion of the sliding piece and the top portion of the base member, and a supporting member mounted on the upper portion of the sliding piece and a second contact surface defined between the bottom portion of the supporting member and the upper portion of the sliding piece. At least one of the first and second contact surfaces is a curved surface with a concave-convex engagement.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: October 3, 2000
    Assignee: Taichung Machinery Works Co., Ltd.
    Inventors: Kelson Z. Y. Yen, Yuan-Jyi Lee
  • Patent number: 6027250
    Abstract: An oscillating bearing is disclosed for a variable-displacement axial piston hydraulic machine having a swashplate with a convex semi-cylindrical bearing face with provisions for attaching the oscillating bearing, and a housing with a concave semi-cylindrical bearing saddle. The oscillating bearing includes thin outer and inner race members having centered openings and formed in arcs congruent with the concave surface of the bearing saddle of the housing and the convex bearing face of the swashplate, respectively. The outer race member has support means on at least one axial end for supporting a timing member which engages a timing feature of the swashplate and synchronizes motion for all parts of the oscillating bearing, and the inner race member has means for holding the inner race against the convex bearing face of the swashplate.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 22, 2000
    Assignee: The Torrington Company
    Inventors: Leo M. Reubelt, Edward P. Butler, III, John M. Grillo, Brian P. Berg, Vincent E. Leto
  • Patent number: 5885003
    Abstract: A rotary and angular movement balanceable assembly includes a first balancer member having concave inner race surface and defining a receiving cavity, a second balancer member disposed in the receiving cavity having a convex outer race surface, a ball bracket mounted inside the receiving cavity, and a plurality of balls retained by the ball bracket in such manner that each ball is in rolling contact with the concave inner race surface of the first balancer member and the convex outer race surface of the second balancer member. Thereby, the rotary and angular movement balanceable assembly is installed between a thrust receiving unit and a thrust applying unit so as to rotatably support the thrust applying unit and enable the thrust applying unit to have both rotary and angular movement while a loading force is applied by the thrust applying unit to the thrust receiving unit.
    Type: Grant
    Filed: February 14, 1998
    Date of Patent: March 23, 1999
    Inventor: Alvin Yi Li
  • Patent number: 5803609
    Abstract: The invention relates to a process for providing a bearing of a tilting device, which makes possible a tilt around at least one axis, with a tilting member, a base member, and a bearing situated between these two members. The center of gravity of the tilting member is situated at the pivot point of the bearing. A first portion of the tilting member is arranged above the pivot point, a second portion of the tilting member is arranged below the pivot point, and the weight of the first portion of the tilting member and the weight of the second portion of the tilting member correspond to each other.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: September 8, 1998
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Horst Stacklies, Steffen Pommerening, Bruno Schweizer, Jurgen Schweizer
  • Patent number: 5795078
    Abstract: A rotary and angular movement balanceable assembly includes a first balancer member having concave inner race surface and defining a receiving cavity, a second balancer member disposed in the receiving cavity having a convex outer race surface, a ball bracket mounted inside the receiving cavity, and a plurality of balls retained by the ball bracket in such manner that each ball is in rolling contact with the concave inner race surface of the first balancer member and the convex outer race surface of the second balancer member. Thereby, the rotary and angular movement balanceable assembly is installed between a thrust receiving unit and a thrust applying unit so as to rotatably support the thrust applying unit and enable the thrust applying unit to have both rotary and angular movement while a loading force is applied by the thrust applying unit to the thrust receiving unit.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: August 18, 1998
    Inventor: Alvin Yi Li
  • Patent number: 5630352
    Abstract: A variable displacement hydraulic piston machine that includes a shaft mounted for rotation within a housing, a plurality of pistons in a cylinder block coupled to the shaft, a yoke engaged by the pistons for controlling displacement of the pistons in the cylinder block, and saddle bearings pivotally mounting the yoke to a base within the housing. Each saddle bearing includes arcuate inner and outer bearing races fixed to the yoke and the housing base respectively, a plurality of rolling elements captured by a cage between the races, and a timing lever positioning and retaining the races and the cage with respect to each other. The timing lever has a central portion pivotally mounted to the bearing between the bearing races, and opposed end portions pivotally received in the housing base and yoke.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: May 20, 1997
    Assignee: Vickers, Incorporated
    Inventor: Steven M. Todd
  • Patent number: 5504641
    Abstract: A flexural bearing for an actuator assembly of a magnetic-disk drive includes a first and a second resilient member (10 and 12) and a third resilient member (14). The resilient members are attached to a base plate (40) of the disk drive and pivotally support an actuator body (16). The third resilient member includes an tensioning spring (18). The first and second resilient members are coupled to the base plate at two distinct locations and share a common anchor point on the actuator body.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: April 2, 1996
    Assignee: Maxtor Corporation
    Inventor: Mark A. Diel
  • Patent number: 5494353
    Abstract: A bearing body is provided with first roller bodies such that a shaft may be rollably bearing-mounted on the surface of the first roller bodies, for centering the shaft such that the shaft is shiftable along the shaft axis, rotatable about the shaft axis, and swivelable with respect to a central axis of the bearing. The first roller bodies may be balls and may, in turn, be rollably bearing-mounted by second roller bodies. The bearing assembly achieves a device having zero runout and low friction that ensures a smooth, reliable bearing for shafts and rods, for example, in the gear shift rods of motor vehicles.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: February 27, 1996
    Assignee: The Torrington Company
    Inventor: Karl Diemer
  • Patent number: 5494135
    Abstract: A conjugate drive mechanism of a motion converter includes a conjugate driver, which is rotatably mounted on a crankpin, and a bearing conjugate, which is mounted on a linearly movable shuttle. The conjugate drive mechanism is lubricated by supplying lubricating fluid from a pressurized source to an interface between trackable profiles of the bearing conjugate and the conjugate driver. The trackable profiles, which are in continuous conjugating engagement, have equal circumferential lengths.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: February 27, 1996
    Inventor: Douglas C. Brackett
  • Patent number: 5456159
    Abstract: A device for translating rotary to linear motion and vice versa includes a reciprocating linearly moving shuttle with a central aperture. The aperture has a pair of opposing conjugate bearings protruding towards the center and which capture therebetween a pair of conjugate drivers rotatably mounted to the crankpin of a rotatable crankshaft with the axis of crankshaft rotation perpendicular to the linear path of the shuttle. The conjugate drivers are free to rotate about the crankpin and articulate independently of each other through a selected angular range. When the crankpin, including the conjugate drivers, is inserted into the aperture of the shuttle with the conjugate drivers engaging the racks, motion is transferable between the crankpin and the shuttle through the conjugate drivers.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: October 10, 1995
    Inventor: Douglas C. Brackett
  • Patent number: 5445250
    Abstract: A brake shoe mounting for a vehicle drum brake hinges brake shoes to a brake anchor member to swivel around axes that are substantially parallel to the brake drum axis. To simplify the assembly and disassembly of the brake shoes and to improve the adaptation of surfaces of brake linings to the inner surface of the brake drum that expands under stress, the hinging of the brake lining shoes to the anchor member is achieved by ball bearings.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: August 29, 1995
    Assignee: Otto Sauer Achsenfabrik Keilberg
    Inventor: Hubert B. Koschinat
  • Patent number: 5190000
    Abstract: The present invention provides a rocker arm assembly for an internal combustion engine comprising an elongate rocker arm having a pushrod engaging portion proximate one end, a valve stem engaging portion proximate its other end, and a socket-forming recess inbetween the ends with an aperture therethrough, retaining stud means extending through the aperture, part-ball-means retained on the stud means within the socket-forming recess forming with the recess a ball-in-socket type coupling of the rocker arm and stud means for relative articulated movement, the improvement wherein a plurality of ball bearings are arranged in a part spherical array to bear loading beteeen the recess and the part-ball means. By providing either of the recess or the part-ball member with a part spherical bearing surface, the ball bearings may be coupled to the other in a spherical array.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: March 2, 1993
    Assignee: Van-Rob Stampings Inc.
    Inventors: Peter J. van Schaik, Marko Valcic
  • Patent number: 5083461
    Abstract: A high pressure, fluid level sensor and seal includes a body supporting a removable end cap and housing a trunnion bearing comprising a pivot disk that is pivotable about a pivot axis formed by a pair of pivot pins that are secured to the base of the end cap. The pivot disk is connected to a control arm that freely passes through the end cap. The pivot disk is also connected to a displacer arm that engages a float or displacer in communication with fluid in a high pressure tank. A compression spring acting between the control arm and the end cap biases the pivot disk against the pivot pins. The control arm engages an operating mechanism in a controller that includes a relay. The body is secured in the wall of a high pressure tank. A high pressure seal is formed by a spacer that forms a slip fit with an annular recess on the pivot disk and which engages the end cap and O-rings. The O-rings couple the spacer to the pivot disk and couple the spacer to the end cap.
    Type: Grant
    Filed: March 8, 1990
    Date of Patent: January 28, 1992
    Assignee: Fisher Controls International, Inc.
    Inventor: Richard J. Winkler
  • Patent number: 4934840
    Abstract: A spherical bearing comprising a generally spherical shaped inner ball, a fixed outer race having a seamless generally concave bearing surface, and a plurality of individual ball bearings disposed between the spherical inner ball and concave bearing surface to support universal movement of the spherical inner ball. The individual ball bearings are retained between the spherical inner ball and concave bearing surface of the fixed outer race by sealed retaining plates. A cylindrical bore may be provided through the inner ball in some embodiments of the invention for attaching a member such as a shaft to the inner ball.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: June 19, 1990
    Inventor: Dana C. Paret
  • Patent number: 4929857
    Abstract: An electric starter comprising a dc motor; an output rotary shaft which is rotated by an armature shaft; an overrunning clutch fitted on the output rotary shaft so that the clutch is slidable in the axial direction thereof; a splined tube coupled to outer member of the clutch and engaged with the helical splines of the output rotary shaft so as to transmit the torque of the shaft to the outer member. A shift lever is engaged at the lower end thereof with the peripheral portion of the tube and at the upper end with the actuator of an electromagnetic switch provided at the peripheral portion of the dc motor, so that the lever is swingable about the fulcrum thereof, wherein the fulcrum is shaped as a cylindrical body, the bottom of the inside of which is shaped as an arc.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: May 29, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shuzoo Isozumi
  • Patent number: 4884902
    Abstract: The invention concerns a roller bearing for performing swivel motions including a mechanism for synchronously guiding the roller bearing cage, including a roller bearing cage having a journal with a rotatable pinion gear flexibly and elastically mounted thereon in the direction of the circumference of the cage by a crosspiece, the pinion gear having teeth which mesh with at least one set of teeth on the bearing parts of the roller bearing. Stops are provided to limit the motion of the pinion gear.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: December 5, 1989
    Assignee: SKF GmbH
    Inventors: Klaus Kispert, Robert Stolz
  • Patent number: 4858575
    Abstract: The rocker arm bearing assembly has a rocker arm which oscillates on a bearing support member and an associated pair of bearings. The bearings are self-contained units with an outer race, an inner race, and multiple rollers positioned between the two races. Full-complement radial bearings are preferably utilized. The bearings are supported on the bearing support member to form an integral unit which can be dropped into the rocker arm. This allows for speedy assembly of the rocker arm with the bearing and support member unit.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: August 22, 1989
    Inventors: David Fittro, Arnold E. Fredericksen
  • Patent number: 4856917
    Abstract: The invention concerns a device for synchronous guiding a roller bearing cage for a roller bearing performing swivel motions, the device comprising a roller cage and bearing parts which swivel relative to one another, the roller cage provided with a pinion gear formed on two diametrically opposed sites with curved toothed segments having different pitch circle diameters, the toothed segments meshing with the teeth of the bearing parts.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: August 15, 1989
    Assignee: SKF GmbH
    Inventors: Horst Schroder, Klaus Kispert, Robert Stolz, Werner Jacob
  • Patent number: 4718379
    Abstract: A retrofit roller bearing pivot assembly for a rocker arm of an internal combustion engine valve gear. A mounting stud or post threaded on one end for attachment to the engine has a fulcrum member received thereover and registered against a head formed thereon with transversely extending oppositely disposed cylindrical bearing surfaces. A roller bearing race is received on each of the bearing surfaces and a semi-cylindrical sleeve member has the post received therethrough and has concave portions on opposite ends thereof journalled on the fulcrum bearing surfacers. The sleeve is retained against the bearings by a spring clip received over the end of the post and engaging ledges on the sleeve. The fulcrum is retained in registration on the post by a contoured supporting spacer held in place by a suitable snap ring received over the post threads. The assembly is sized to drop between the side wall of a cupped rocker arm.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: January 12, 1988
    Assignee: Eaton Corporation
    Inventor: David P. Clark
  • Patent number: 4625967
    Abstract: A movable surface global puzzle includes a magnetic core and a concentric shell spaced from and surrounding the core, the shell is divided into component sections as defined by planes passing through a center of the core, and is magnetically held to the core. A plurality of ball bearings interposed between the shell and the core provide for slidable movement of the shell sections about the core and relative to each other. A world map, geometric design or similar pattern is depicted on the surface of and extending over several sections. The object of the puzzle is to rearrange a random distribution of the shell sections by a series of shiftable movements so as to recreate the composite or mosaic pattern. In an alternate arrangement a handle is provided for removal of one or more shell sections from the core to provide an alternate method of play and to facilitate solving the puzzle.
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: December 2, 1986
    Inventor: Chin-Lai Yu