Including Thrust Plate At Shaft End Patents (Class 384/425)
  • Patent number: 10876623
    Abstract: A compensating arrangement for compensating axial play for a transmission housing unit, having a housing base body and a rotatable shaft, a first guide surface transversely to the axial direction and a second guide surface obliquely to the axial direction, wherein the shaft is supported between the guide surfaces with the interposition of the compensating arrangement, is configured in the shape of a wedge and is displaceable along the second guide surface in a feed direction transversely to the axial direction in order to compensate axial play of the shaft, wherein the transmission housing unit contains a pre-stressed spring element for the compensating arrangement in the feed direction, wherein the compensating arrangement is configured to increase the frictional force at least in the direction opposite the feed direction.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: December 29, 2020
    Assignee: NIDEC MOTORS & ACTUATORS (GERMANY) GMBH
    Inventors: Rainer Bruhn, Jian Yang
  • Patent number: 10760667
    Abstract: In a transmission housing unit having a housing base body for a shaft, which is supported with a compensating arrangement between a second end face and a second guide surface. The compensating arrangement has an axial disk. The axial disk and the housing base body have corresponding geometric unbalances in accordance with the poka-yoke principle such that the axial disk is only insertable in a single orientation into the housing base body in the assembly condition.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 1, 2020
    Assignee: NIDEC MOTORS & ACTUATORS (GERMANY) GMBH
    Inventors: Rainer Bruhn, Jian Yang
  • Patent number: 10451071
    Abstract: A fluid pump for dispensing a fluid to a setting or work environment is disclosed. A fluid pump having a contactless, fluid sensor and for use with a liner is also disclosed. The pump includes a jet assembly, a motor assembly, and a contactless, fluid sensor. The pump may further include a mounting housing member, a gasket or seal, and a liner when a liner is not already present. The jet assembly is coupled to or secured about the motor assembly. The jet assembly includes a jet assembly housing, and preferably also includes a printed circuit board (PCB), a PCB cover, a shaft assembly, and an impeller. The jet assembly housing includes a base, a top cover, an impeller-receiving chamber, at least one inlet aperture, and at least one outlet aperture. A pump apparatus that includes a pump as described, a power source, and/or a control apparatus is further disclosed.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 22, 2019
    Assignee: Luraco, Inc.
    Inventors: Kevin Le, Thanh Le
  • Patent number: 10151382
    Abstract: An improved planetary gear carrier assembly is disclosed including a carrier and a ring. The carrier has a hub extending in an axial direction. The hub has splines on a radially-outward facing surface that extend in an axial direction and further has a first set of groove sections on the radially-outward facing surface in which the first set of groove sections extends circumferentially around the hub and through the splines. The ring is received around the hub of the carrier and has splines on a radially-inward facing surface. The splines in the ring are received in the first set of groove sections by axially nesting the splines of the carrier and ring into one another and then angularly rotating the ring relative to the carrier. With the splines of the ring twisted in the groove sections of the carrier, the ring can be axially restricted relative to the carrier.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: December 11, 2018
    Assignee: GKN Sinter Metals, LLC
    Inventor: Jeffrey W. Lemke
  • Patent number: 9882460
    Abstract: The linear actuator includes an inner core (2), and an outer core (3) provided outside the inner core in a radial direction while being supported by a pair of flat springs (41 and 42). Permanent magnets (23 and 24) are formed at one of the inner core and the outer core, and magnetic pole portions (31a and 32a) are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers (71 and 72) are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and at least an engagement portion including a recess and a protrusion are arranged at the abutting portions.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: January 30, 2018
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
  • Patent number: 9874220
    Abstract: A device to limit pre-rotation of fluid across turbomachinery regions where significant pressure differentials exist between rotating and non-rotating components. In one form, the present invention is particularly applicable to centrifugal-based turbomachinery. Of particular concern is that the highly-energized fluid exiting an impeller or related rotating member can impart significant swirl velocity and related rotordynamic forces which in turn may impact rotor stability. The potential for such instability is particularly high when flow coming from an impeller discharge permeates a seal, bushing or related component that is used to fluidly separate the impeller from an upstage partition. The present invention replaces traditional bushing seal designs at swirl-prone regions with a vaned anti-swirl bushing that fits within the housing without increasing the axial or radial dimensions of the housing.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: January 23, 2018
    Assignee: Flowserve Management Company
    Inventor: Douglas Adams
  • Patent number: 9647524
    Abstract: A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of flat springs. Permanent magnets are formed at one of the inner core and the outer core, and magnetic pole portions are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and a plurality of engagement portions including recesses and protrusions are arranged at the abutting portions.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: May 9, 2017
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
  • Patent number: 9574648
    Abstract: An electric linear actuator has a cylindrical housing, an electric motor, a speed reduction mechanism, and a ball screw mechanism. The ball screw mechanism has a nut and a screw shaft coaxially integrated with the drive shaft. The housing has receiving bores to receive the screw shaft. A cylindrical sleeve is securely press-fit into the receiving bore of the housing. The sleeve has one pair of axially extending recessed grooves formed on its inner circumference at diametrically opposed positions. A guide pin, mounted on the end of the screw shaft, engages the recessed grooves. An annular groove is formed near an opening of the receiving bore of the housing. The sleeve is held in the receiving bore by a stopper ring snapped into the annular groove.
    Type: Grant
    Filed: August 16, 2014
    Date of Patent: February 21, 2017
    Assignee: NTN Corporation
    Inventors: Yoshinori Ikeda, Kensuke Funada
  • Patent number: 9476489
    Abstract: An electric linear actuator has a housing, an electric motor mounted on the housing, a speed reduction mechanism, and a ball screw mechanism. The ball screw mechanism has a nut and screw shaft. Both have helical screw grooves. The screw shaft is inserted into the nut, via a large number of balls. A sleeve is secured on the housing to prevent rotation of the screw shaft relative to the housing. At least one axially extending recessed groove is formed on the inner circumference of the sleeve. At least one guide pin, mounted on the end of the screw shaft, engages the recessed groove. A tapering chamfered portion is formed on the end of the nut.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: October 25, 2016
    Assignee: NTN Corporation
    Inventors: Kensuke Funada, Yoshinori Ikeda, Keisuke Kazuno
  • Patent number: 9464464
    Abstract: A drive unit for automotive applications, specifically for application with or in combination with a motor vehicle door lock, a housing (5), a motor (1) as well as an associated motor shaft (2), and with at least one spring element (6) generating an axial force at one end of the motor shaft (2), with the spring element (6) being located in at least one receptacle (7, 8) in the housing (5). In a top view, the spring element (6) has essentially a T-shaped design with an end plate (6a) and cantilevers (6b) on both sides, with the end plate (6a) acting upon the motor shaft (2), and at least the cantilevers (6b) being arranged in the receptacle (7, 8).
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: October 11, 2016
    Assignee: Kiekert AG
    Inventors: Mandya Rajagopal, Jim Zhuang, David Fischer
  • Publication number: 20150027402
    Abstract: A system including a stationary housing having a recess formed therein and a thrust plate positioned within the recess in the housing. The thrust plate may have a non-circular profile for preventing rotation of the thrust plate relative to the housing, and may be secured within the recess without the use of fasteners or dowels. The thrust plate may have a body that is generally annular in shape, with one or more ears extending radially from the body.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 29, 2015
    Applicant: Caterpillar Inc.
    Inventors: Jay C. Landsiedel, David G. Turner, Lucas J. Moehling
  • Patent number: 8834034
    Abstract: An outer ring 6a for a shell-type radial needle bearing having a cylindrical shape with a bottom is achieved for which fatigue life of the bottom plate section 9a and the continuous section between the bottom plate section 9a and the cylindrical section 8a is improved, as well as the anti-corrosion characteristic of the outer ring 6a is improved and the outer ring 6a can be prevented from coming out of the bearing without an increase in cost. After obtaining an intermediate raw material 35 having a cylindrical section and a bottom plate section from a metal raw material, shot peening is performed on the intermediate material 35 to create residual compressive stress in the surface and surface layer section on the outer surface side of the cylindrical section 8a and the bottom plate section 9a such that the residual compressive stress in the surface layer section on the outer surface side is greater than the in the surface layer section on the inner surface side, and from the surface to a depth of 0.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 16, 2014
    Assignee: NSK Ltd.
    Inventors: Masato Higuchi, Noriyuki Takeo, Yoshiaki Komura
  • Publication number: 20120152383
    Abstract: A thrust bearing shaft has a radially enlarged thrust disk to be mounted between two static housing surfaces in an air cycle machine. A first portion of the thrust bearing shaft extends from a first face of the thrust disk. A second portion extends from a second opposed face of the thrust disk. The second portion has sealing ribs and six holes. The sealing ribs are spaced closer to the thrust disk than are the holes. A ratio of a distance from an end of the second portion to a center of the holes compared to a distance from the end of the second portion to the second face of the thrust disk is between 0.20 and 0.22. In addition, an air cycle machine incorporating the thrust bearing shaft, and a method of assembling the thrust bearing shaft into an air cycle machine are disclosed.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Inventors: Valentina Lugo, Darryl A. Colson, Craig M. Beers
  • Patent number: 7768163
    Abstract: A motor may include a rotor provided with a rotation shaft, a stator, a frame fixed to the stator and provided with a bearing part that rotatably supports an output side of the rotation shaft, and an urging member mounted on the bearing part for urging the rotation shaft. The bearing part may include a bearing, formed with a protruded part protruded from a flat plate part of the frame. The urging member may include a bottom face part provided with a spring part for urging the rotation shaft, a pair of side plate parts bent from side edge parts of the bottom face part, and a pair of hook parts bent on inner sides from the pair of the side plate parts to be engaged with the protruded part. The urging member is mounted on the bearing part such that the hook parts are engaged with the protruded part.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: August 3, 2010
    Assignee: Nidec Sankyo Corporation
    Inventor: Shigeru Kasai
  • Publication number: 20100129015
    Abstract: A method for producing a component made of metal, particularly for a head bearing housing of a spring strut. The component comprises a base part and a flange that extends away therefrom. The flange comprises a substantially tubular portion having a first diameter and a collar-type rim portion that adjoins the tubular portion. The free edge of the tubular portion has a second diameter that is greater than the first diameter of the tubular portion. A raw component is provided comprising a base part and a cylindrically tubular portion having a third diameter that is at least greater than the first diameter. The third diameter of the cylindrically tubular portion is reduced to the first diameter at a distance from an edge of the tubular portion by forming by means of a forming tool that is applied to the outside of the tubular portion and that acts approximately radially toward the longitudinal center axis, in such a way that the collar-type rim portion is constituted.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Inventors: Uwe Nestlen, Horst Siefermann
  • Publication number: 20080219605
    Abstract: A bearing arrangement to reduce the effects of thermal expansion in a marine transmission includes a pinion gear thrust bearing, a clutch shaft thrust bearing, a shaft roller bearing and a thrust washer. The clutch shaft thrust bearing is retained on one end of a clutch shaft and the shaft roller bearing is retained on the other end of the clutch shaft. A pinion gear is rotatably retained on the clutch shaft. The pinion gear thrust bearing is retained on the pinion gear with a bearing retainer. The thrust washer is retained on the bearing retainer. An end of the clutch shaft thrust bearing rotates relative to the thrust washer and makes contact therewith. The length of thermal expansion in the transmission housing is limited to the distance between the opposing ends of the two thrust bearings.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventor: Andrew Clark
  • Patent number: 7189004
    Abstract: The motor has a thrust cap fitted to its end cap by snap fit fingers. The thrust cap closes a hole in the bearing retainer of the end cap and provides a thrust bearing surface against which the end of the shaft contacts to limit axial movement or end play of the shaft. The thrust bearing surface is part of a metallic spring fixed to a body of the thrust cap.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: March 13, 2007
    Assignee: Johnson Electric S.A.
    Inventor: James Ching Sik Lau
  • 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: 7178984
    Abstract: A bearing arrangement for supporting a universal joint trunnion in an outer cup includes a radial bearing having cylindrical rolling elements disposed between the trunnion and the outer cup, and a resistance member made of a material to allow elastic deformation and bearing upon a confronting surface area of an end surface of the trunnion. The resistance member and the trunnion are hereby so configured either alone or in combination as to form a large lubricant reservoir. Disposed at a distance to the end surface of the trunnion is a stop member to define an axial gap, whereby the stop member inhibits an axial movement of the trunnion after the trunnion has moved in axial direction to close the gap.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: February 20, 2007
    Assignee: INA-Schaeffler KG
    Inventor: Martin Kruppa
  • Patent number: 6869221
    Abstract: A washer in accordance with the present invention mainly comprises an axial hole and a plurality of oil-bearing holes. The oil-bearing holes are connected an outer surface of the washer to an inner surface, and surround the axial hole.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: March 22, 2005
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Yin-Rong Hong, Ching-Sheng Hong
  • Patent number: 6601992
    Abstract: An annular thrust bearing is composed of an annular backing plate made of steel and an annular bearing layer joined to one side of the backing plate during a sintering operation. The bearing layer is made of an alloy composed of copper, tin and silver. The bearing layer is roll-formed in a spiral fashion after the sintering operation.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 5, 2003
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Hisatosi Tabuti, Akio Hinata, Yutaka Miyata
  • Patent number: 6507135
    Abstract: An axial ventilator has an external-rotor drive motor having an external rotor with a rotor shaft and an internal stator, wherein the external rotor rotates about the internal stator during operation of the external-rotor drive motor. A ventilator wheel driven by the external rotor is provided. A bearing support tube is arranged in the internal stator. A radial plain bearing is arranged in the bearing support tube and supports the rotor shaft. An axial bearing formed by a free end of the rotor shaft and a stationary counter member, against which the free end of the rotor shaft rests, are provided. The stationary counter member comprises a thrust element and an elastomeric shaped member. The thrust element is connected to the elastomeric shaped member.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: January 14, 2003
    Assignee: Papst-Motoren GmbH & Co. KG
    Inventor: Wolfgang Arno Winkler
  • Patent number: 6336868
    Abstract: A universal joint for interconnecting a pair of rotating shafts and a method of assembling the universal joint. The universal joint includes a pair of yokes secured to the shafts and a cruciform for interconnecting the yokes. Both yokes are bifurcated to define a pair of laterally-spaced legs. Each leg has an aperture which includes a first bore adapted to receive a bearing cup therein and a second bore into which an end portion of the bearing cup extends. Each bearing cup rotatably supports one of four orthogonal trunnions extending from the cruciform. With respect to each of the yokes, a pair of axially-aligned trunnions, with bearing cups mounted thereon, are installed into the apertures so as to support the cruciform between the legs of the yoke. Thereafter, a retention member is inserted in the second bore of each aperture such that one surface of the retention member rests on the bearing cup.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: January 8, 2002
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Donald J. Kurecka, Salvatore N. Grupido
  • Publication number: 20010046337
    Abstract: A device to mix and extrude various ingredients including pastas, pastries, baked goods, hors d'oeuvres, and cookies. The device includes novel measuring, mixing and extrusion arrangements including: an automatic measuring cup; a way to continuously mix and extrude ingredients without intervening cleanings; a mixing and extrusion feed for handling different consistencies of ingredients; an integrated automatic cutter; motor cooling and extruded ingredient drying; as well as various safety devices.
    Type: Application
    Filed: June 18, 2001
    Publication date: November 29, 2001
    Inventors: Alan L. Backus, Ronald M. Popeil
  • Patent number: 6280092
    Abstract: A simplified trust bearing to be used in a dry powder contaminated environment such as a pasta maker, with the bearing comprising two plates contacting each other face-to-face and through such face-to-face contact transmitting an axial thrust load.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: August 28, 2001
    Inventors: Alan L. Backus, Ronald M. Popeil
  • Patent number: 6264566
    Abstract: A universal joint assembly includes a cross having a plurality of trunnions extending outwardly therefrom. A bearing cup is disposed about each of the trunnions, and a plurality of needle bearings is disposed between each of the bearing cups and its associated trunnion to facilitate relative rotational movement. A thrust washer is disposed between the outer end surface of each of the trunnions and its associated bearing cup. Each of the thrust washers is generally annular in shape, including a first inner annular region surrounded by a second outer annular region. The inner region is sized to extend between the outer end surface of the trunnion and the associated inner surface of the end portion of the bearing cup. The outer region is sized to extend between the outer ends of the needle bearings and the associated inner A surfaces of the end portions of the bearing cup. The outer region is connected to and supported on the inner region by a plurality of radially extending legs.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: July 24, 2001
    Assignee: Dana Corporation
    Inventors: Andrew L. Nieman, Leon W. Valencic
  • Patent number: 6050775
    Abstract: A radial-flow exhaust-gas turbocharger turbine is provided with a row of adjustable guide blades which are rotatable via adjusting shafts mounted in a casing. The guide blades are each provided with sealing discs on their longitudinal sides running at right angles to the adjusting-shaft axes. The diameter of the sealing discs is a multiple of the thickness of the guide blades. The sealing discs which are located on the side remote from the adjusting shafts form bearing points for the guide blades in the casing.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: April 18, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Wolfgang Erdmann, Siegfried Sumser
  • Patent number: 5895120
    Abstract: A high speed thrust bearing assembly is provided for use on a hand-held circular saw. The thrust bearing assembly is held in place within a plastic housing which has a through hole therethrough. The plastic housing further has a first counterbore which is larger than the through hole, and a second counterbore which is larger than the first counterbore. A high speed thrust plate is placed within the plastic housing. The thrust plate has a flange section and a bearing section. The bearing section has an indentation therein. The thrust plate is placed within the plastic housing so that the bearing section is disposed through the through hole of the plastic housing with the flange section being held within the first counterbore. A sleeve bearing is thereafter placed within the second counterbore and surrounds a rotating shaft. The rotating shaft has a terminal end with a cylindrical projection thereon which matingly fits within the indentation of the bearing section in the thrust plate.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: April 20, 1999
    Assignee: Black & Decker, Inc.
    Inventors: David C. Campbell, Lynn E. Lentino
  • 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: 5823324
    Abstract: A key switch assembly includes a key cap support with first and second support levers. The first support lever has upper rods, lower rods and intermediate circular connecting portions. The circular connecting portions have circumferential edges which form first shoulders that interconnect front sides of the upper and lower rods, and second shoulders that interconnect back sides of the upper and lower rods. The lower rods and upper rods have concave first and second end faces that extend transversely along the circumferential edges. The second support lever has upper arms, lower arms and intermediate circular plates. The circular plates have peripheral edges which form third shoulders that interconnect back sides of the upper and lower arms, and fourth shoulders that interconnect front sides of the upper and lower arms. The upper and lower arms have concave third and fourth end faces that extend transversely along the peripheral edges of the circular plates.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 20, 1998
    Inventor: Huo-Lu Tsai
  • Patent number: 5820271
    Abstract: A thrust bearing assembly (4), used to counteract axial thrust on a rotary shaft (10, 26), includes a base element (28) to which an articulated element (38) is mounted. The articulated element has a first sliding support surface (76). A rotating element (86), rotatable about a main axis (12), has a second sliding support surface (90) in contact with the first sliding support surface. The base element also has an alignment element (34) circumscribing the periphery of the articulated element. A stabilizer element (56, 78) is situated between and is in contact with both the articulated element and the alignment element. The articulated element can be either a single piece element (38a) or a multiple piece element (38) to provide the desired multi-axis articulated support.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: October 13, 1998
    Inventor: William F. Hackett, Jr.
  • Patent number: 5791786
    Abstract: An aerostatic bearing is provided for the thrust bearing arrangement of the shaft of an open-end spinning rotor. This aerostatic bearing comprises a bearing plate, which forms a bearing gap with the end of the shaft. An axial thrust, directed against the bearing, is exerted on the shaft. The bearing plate is provided with bore holes for releasing air into the bearing gap. An adjustable ball cup is arranged at the bearing plate for adjusting the bearing gap. This ball cup preferably takes the form of a sliding body which has a spherically shaped surface and is held in a corresponding spherically shaped bearing support. After the open-end spinning rotor has been adjustable cup adjusts automatically so that the surfaces which form the bearing gap are disposed parallel to one another.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: August 11, 1998
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5765950
    Abstract: A thrust bearing assembly for a submersible motor assembly of a submersible pump assembly comprising first and second bearing members or plates and first and second bearing holders contained within a housing. Each bearing plate is in the form of a disk having a bearing surface, and the first and second bearing plates are disposed between the first and second bearing holders with the bearing surfaces in face-to-face contact. The first bearing holder is in the form of a thrust bearing holder, and the second bearing holder is in the form of a gimbal plate. The first bearing plate is adapted to rotate with a rotor shaft of the submersible pump assembly and to impose a thrust load on the second plate, and the second bearing plate is adapted to remain stationary relative to the rotating first bearing plate. Grooves are defined by one or both of the bearing surfaces to allow fluid from a fluid supply to enter between the bearing surfaces to create a fluid film to lubricate and cool the bearing surfaces.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: June 16, 1998
    Assignee: Goulds Pumps, Incorporated
    Inventors: James Joseph Eno, Antonio Tinio Ganzon
  • Patent number: 5666854
    Abstract: A support for a gear wheel, used in a toothed gear change transmission having a shaft and a gear wheel, where the support provides both sufficient axial fixing and radial play between the gear wheel and the shaft, necessary to compensate for working loads. The support is used with a gear wheel having internal teeth with at least one discontinuity in the internal teeth and a groove extending into the internal teeth. The support has a first disc with external teeth and at least one mating discontinuity in the external teeth, whereby the internal and external teeth and the discontinuities, respectively, can coincide with one another. A locking mechanism locks the position of the first disc relative to the gear wheel. To prevent against axial movement of the first disc against the direction of insertion into the groove, the support also includes a securing device.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: September 16, 1997
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Buri, Josef Bader
  • Patent number: 5642942
    Abstract: A radially disposed thrust bearing assembly for air cooled and lubricated mining type rotary cone rock bits consists of a first non-rotating radially disposed steel thrust bearing disc and an apposed, non-rotating carbide thrust bearing disc. One of the thrust bearing discs is pressed into a disc retention socket formed in the end of a spindle bearing extending from the end of a main axially aligned bearing cantilevered from a leg of the bit and the other thrust bearing disc is pressed into a disc retention socket formed in the rotary cone. An edge of the carbide disc is formed with large valleys and peaks, the robust undulations resist cracking when the carbide thrust bearing disc is pressed into its respective socket. Unique air passages and channels are formed in the main and spindle bearings to direct cooling air to the apposed thrust bearing discs.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: July 1, 1997
    Assignee: Smith International, Inc.
    Inventor: Robert Wagoner
  • Patent number: 5222353
    Abstract: An open-end spinning rotor assembly is disclosed which includes a rotor shaft which has one end thereof supporting a spinning rotor. At an opposite axial end face of the rotor shaft, a small round plate is mounted which serves as an axial bearing surface engageable with a step bearing. The round plate is attached in a precise position on the corresponding round surface on the rotor shaft axial end. In certain preferred embodiments, the round plate and the rotor shaft end face are provided with recesses for accommodating glue or other adhesive.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: June 29, 1993
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5169245
    Abstract: A thrust bearing device for a motor comprises a housing of the motor, a thrust plate disposed in the housing and in contact with an end of a motor shaft, a spring for energizing the motor shaft through the thrust plate, and the housing is formed with a stepped portion for restricting movement of the thrust plate within a predetermined small range. According to this invention, it is possible to improve the durability and the reliability of the motor.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: December 8, 1992
    Assignee: Jidosha Denki Kogyo K.K.
    Inventors: Naoto Harada, Shuji Sekine
  • Patent number: 5160240
    Abstract: A submersible centrifugal pump is disclosed. It includes a housing with a linear stack of axially mounted pumping units therein. Each unit is constructed as a module with at least a first and a second impeller mounted to a central shaft. A diffuser forms an outer casing which is provided for each impeller. A thrust bearing, lubricated and cooled by the fluid being pumped is supported from and to the outer casing and is arranged to receive axial force from the upstream impellers in each modular unit. A plurality of impellers and diffusers can form a single modular unit.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: November 3, 1992
    Assignee: Oil Dynamics, Inc.
    Inventor: Brown L. Wilson
  • Patent number: 5106342
    Abstract: A thrust washer for a bearing assembly of a Hookes universal joint, comprng a central portion (10) and a peripheral portion (13), connected by at least one web which permits the two portions to be displaced axially of the bearing assembly relative to one another as the joint is assembled so that with a peripheral portion of greater thickness than the central portion, the thrust washer can be used in place of a conventional thrust washer with a peripheral flange without requiring careful placing of the washer in the bearing cup in a particular orientation during assembly since either side or face of the washer can be inserted first in the bearing cup.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: April 21, 1992
    Assignee: GKN Cardantec International Gesellschaft fur Antriestechnik mbH
    Inventor: Leslie G. Fisher
  • Patent number: 5098205
    Abstract: An open-end spinning device with a spinning rotor (1) which is supported via its shaft (11) by support disks (4) and upon which an axially acting force is exerted is provided for its axial support with an aerostatic thrust bearing (6) with a bearing plate which interacts with the end of the shaft. The escape of air into the bearing gap takes place through the bearing plate (63) which together with the end of the rotor shaft (11) constitutes a low-friction pairing of materials.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: March 24, 1992
    Assignee: Schubert & Salzer Maschinenfabrik Aktiengesellschaft
    Inventors: Alfons Zehndbauer, Josef Breitenhuber
  • Patent number: 5048646
    Abstract: An anti-skid device of the type including an arm, carrying in its outer end a chain-provided pulley that is brought in contact with a vehicle wheel so that the chains are thrown in under the vehicle wheel. The arm is, in its inner end, journaled in a U-shaped or fork-shaped bracket via a short axle that, in its ends, rests in bowl-shaped hemispherical bearings that are threaded into the legs of the bracket. The bearing bowls are pretensioned against the axle. At the apex of the shaft's spherical ends, recesses are made that take-up lubrication grease and, in this way, a point-like contact between the bearing shells and the axle is eliminated.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: September 17, 1991
    Assignee: Onspot AB
    Inventor: Lennart Carlsson
  • Patent number: 5033937
    Abstract: A submersible centrifugal pump is disclosed. It includes a housing with a linear stack of axially mounted pumping units therein. Each unit constructed as a module with at least a first and a second impeller mounted to a central shaft. A diffuser forms an outer casing which is provided for each impeller. A thrust bearing, lubricated and cooled by the fluid being pumped is supported from and to the outer casing and is arranged to receive axial force from the upstream impellers in each modular unit. A plurality of impellers and diffusers can form a single modular unit.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: July 23, 1991
    Assignee: Oil Dynamics, Inc.
    Inventor: Brown L. Wilson
  • Patent number: 4951494
    Abstract: Rolling mills commonly have rollers with shoulders abutting face plates on the frame of the mill. Dirt collects at the interface of the roller shoulders and face plates. There is no simple way to clean that interfacial area. Novel shields positioned against the roller shoulders and movable therefrom now permit facile cleaning of both the roller shoulders and shields. Frequent cleaning is critical in rolling mills of not only the food industry to prevent bacterial contamination of food products but also other industries where gritty material migrates into the interfacial area of roller shoulders and causes abrasion thereof. The shields can be as simple as stiff plastic sheets.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: August 28, 1990
    Inventor: Joseph C. D'Alterio
  • Patent number: 4875787
    Abstract: In a bearing bushing for universal joint pins, a thrust washer on the bottom of the bearing bushing has a contact surface for a plurality of cylindrical rollers and for a universal joint pin. The thrust washer has a number of recesses on the side facing away from the cylindrical rollers which are distributed around the periphery and which extend from the lateral surface in a radial direction approximately over the length of the contact surface for the cylindrical rollers. Two adjacent recesses form a projection between them in each case.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: October 24, 1989
    Inventors: Bernhard Bauer, Herbert Dobhan
  • Patent number: 4872808
    Abstract: A submersible centrifugal pump is disclosed. It includes a housing with a linear stack of axially mounted pumping units therein. Each unit constructed as a module with at least a first and a second impeller mounted to a central shaft. A diffuser forms an outer casing which is provided for each impeller. A thrust bearing, lubricated and cooled by the fluid being pumped is supported from and to the outer casing and is arranged to receive axial force from the upstream impellers in each modular unit. A plurality of impellers and diffusers can form a single modular unit.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: October 10, 1989
    Assignee: Oil Dynamics, Inc.
    Inventor: Brown L. Wilson
  • Patent number: 4854738
    Abstract: A drawn cup needle bearing with an open end and a covered end contains multiple roller elements in a retainer or cage. The bearing is installed on a trunnion of a universal joint and has a protuberance projecting inwardly from the covered end so as to provide a bearing surface between the protuberance and the end of the trunnion. The protuberance is surrounded by an annular region which has been spring-tempered to allow the covered end to flex without cracking during installation of the bearing onto the trunnion and during normal operation.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: August 8, 1989
    Assignee: The Torrington Company
    Inventor: Elmer H. Linnemeier
  • Patent number: 4792245
    Abstract: A bearing device for rotatably supporting the end of a rotational shaft through a slide bearing to a base comprising a through opening perforated at a part of the base for press-fitting the slide bearing, and a retainer containing opening formed at the base to substantially perpendicularly cross the through opening, and a retainer disposed in the retainer containing opening of the base for bearing the axial force of the rotational shaft, thereby reducing the manufacturing cost and improving its accuracy.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: December 20, 1988
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takamichi Fuke, Kazuyoshi Ozawa, Atsushi Masuda, Osamu Shigenai, Kunihiko Gunji
  • Patent number: 4732493
    Abstract: A body of metal (1) provided with a central through passage (2) presenting at least a cylindrical surface (3). A disc (10) is positioned in the cylindrical surface (3). A cylindrical part (12) of synthetic resin is fixed in the body (1), this part (12) presenting an internal cylindrical surface having the shape of a diabolo the medial part of which (13) receives a pivot. The internal frontal face of the part (12) of synthetic resin is in contact with the face of the disc (10).
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: March 22, 1988
    Assignee: Sarcem S.A.
    Inventor: Philippe Bonello
  • Patent number: 4647228
    Abstract: A height adjusting device for machines or machine elements comprises three adjustment members positioned atop one another and together determining two sets of opposing surfaces. These surfaces allow a gyroscopic movement of the uppermost adjustment member, and the height of the height adjusting device can be adjusted stepwise, one of the two opposing surfaces in the first set of surfaces comprising one or more aligned supporting projections. These projections can cooperate selectively and tiltably with one or more recesses in a row of recesses in the second surface of the first set of surfaces. The depth of the recesses in said row of recesses varies stepwise. The surfaces of the second set of surfaces are provided with cooperating secondary projections and secondary recesses. The line on which the secondary projections are positioned forms an angle of substantially 90.degree. with the line on which the supporting projections are positioned.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: March 3, 1987
    Assignee: Grundfos A/S
    Inventors: Niels D. Jensen, Jan Jensen
  • Patent number: 4637740
    Abstract: For a bearing bushing of generally cup-like form for universal joints including a universal joint pin, a check plate disposed between the axial end face of the pin and the bottom wall of the bushing, said check plate having on the side thereof confronting the pin concentric or circumferentially distributed projections with check surfaces and in that, proceeding from the end surface facing away from the pin, it has recesses or the like, which are arranged under the projections in the axial direction.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: January 20, 1987
    Assignee: SKF GmbH Schweinfurt
    Inventors: Armin Olschewski, Bernhard Bauer, Elisabeth Zirk, Rut Heemskerk