Particular Mounting, Frame, Casing, Or Reinforcement Feature Patents (Class 277/572)
  • Patent number: 11162590
    Abstract: A sealing ring, in particular a radial shaft sealing ring or a rod sealing ring, can be used for sealing a sealing gap which is arranged between two machine elements. The sealing ring comprises an elastically deformable polymer material and a supporting ring which is embedded in a positively locking manner in the polymer material at least in sections. The supporting ring is configured as a 3D-printed part with a multiple-layer construction of its material at least in sections. The material of the supporting ring has a greater modulus than the polymer material. The supporting ring can be widened elastically in a radial direction with respect to the center axis of the sealing ring, and has dimensionally stable first ring segments which are connected to one another in an articulated manner in the circumferential direction of the sealing ring.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: November 2, 2021
    Assignee: Trelleborg Sealing Solutions Germany GmbH
    Inventors: Monica Crudu, Martin Franz, Gianella Attard, Matthias Keck, Christoph Wehmann
  • Patent number: 11078963
    Abstract: A bearing bush includes at least one sealing element and one bearing element. The sealing element is provided with at least one sealing lip. The bearing element is substantially tubular. The bearing element includes a plurality of protrusions extending in the axial direction on the outer circumference. The inner diameter of the bearing element is larger in the sections corresponding to the protrusions than in the remaining sections.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 3, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Frank Schoenberg, Matthias Hauer, Christoph L. Klingshirn, Wojciech Kokoszynski, Randolph Gaa, Stephen Joyce, Joram Wiggers, Dean Morrison, Simon Watling, Juergen Emig
  • Patent number: 10890256
    Abstract: A seal structure of a high-pressure tank including: the first member in which a tank chamber is formed inside; and the second member which is fitted into the opening hole of the first member and provided with an annular groove formed on an outer peripheral surface, the seal structure includes: a seal member, having an annular shape, configured to be disposed on the tank chamber side in the groove; and a first back-up member and a second back-up member configured to be disposed further to the side opposite to the tank chamber side than the seal member in the groove, to include inclined surface parts respectively opposite to each other. The inclined surface part of the first back-up member includes a crest folding corner part in which a first low angle inclined part and a first high angle inclined part are connected to each other.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: January 12, 2021
    Assignees: TOYODA GOSEI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Osamu Sawai, Kosuke Kusaba
  • Patent number: 10890215
    Abstract: A roller bearing for a wind turbine includes a first inner ring with an axial protrusion, a second inner ring, an outer ring arranged coaxially over the first inner ring and the second inner ring, and first and second pluralities of rolling elements. The rolling elements roll on respective inner ring and outer ring raceways. The roller bearing also has a bearing interior at least partially filled with a lubricant, an additional ring arranged radially outwardly on the axial protrusion, an axial extension connected to the outer ring and includes a cylindrical inner sealing face, and a radial shaft sealing ring installed on the additional ring in a radially outward manner. The radial shaft sealing ring has a radially outwardly directed sealing lip in radial contact with the cylindrical inner sealing face.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: January 12, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Manuel Rettinger, Jörg Neukirchner
  • Patent number: 10765055
    Abstract: A greaseless bushing assembly for the gauge wheel arms of an agricultural row planter. The greaseless bushing includes an outer threaded tube for threaded mounting within the gauge wheel arm, and an internal non-metallic sleeve through which the wheel bolt extends for mounting the gauge wheel onto the arm. The sleeve provides dry lubrication for the bushing. The bushing may also include a lip or wiper seal at each end to prevent entry of dust into the bushing.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Harvest International, Inc.
    Inventor: Jeffrey Alan Sivinski
  • Patent number: 10718375
    Abstract: A maintenance-free bearing system having self-lubricating features, seals, grooves and slots for use in a cushion hitch assembly for a hitch pull scraper vehicle. An interconnected bearing linkage system having two or more horizontal two-axis combined journal and thrust bearings with self-lubricating liners therein, two or more vertical single-axis sleeve bearings with self-lubricating liners therein and one or more vertical thrust bearing with self-lubricating liners therein, that cooperate with one another to accommodate vertical and horizontal angular movement relative to one another.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: July 21, 2020
    Assignee: Roller Bearing Company of America, Inc.
    Inventor: Stephen Sorgenti
  • Patent number: 10527208
    Abstract: The invention relates to a composite annular seal (30) having a flexible body and rigid reinforcement (35) for a rapid fluid-transfer coupling (1), and to a rapid coupling of this type incorporating the seal. The seal (30) with a reinforcement (35) can be used for a coupling comprising a female tubular sleeve (10) and a male tubular endpiece (20) mounted inside the sleeve in order to produce overall static sealing between a recess (13) in the sleeve (10) and the endpiece (20), the seal comprising: an inner axial wing (31) having a radially inner face (31a) which has a radially innermost flexible peripheral portion (31aa) designed to be applied tightly against the endpiece; an outer axial wing (36) having a flexible radially outer face (36a) which is designed to be placed firmly against the recess; and a core (33) connecting the inner wing to the outer wing. According to the invention, the innermost peripheral portion (31aa) is convex, with a rounded shape in axial section.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: January 7, 2020
    Assignee: HUTCHINSON
    Inventors: Philippe Grouillet, Jean-Luc Faillu
  • Patent number: 10384321
    Abstract: The present invention provides a technique in which service life of a coolant application device can be extended. The coolant application device includes a nozzle body which spouts coolant, a hollow shaft which rotates the nozzle body, a motor which controls a rotation angle of the hollow shaft, and an Oldham coupling portion which connects the hollow shaft and an output shaft of the motor, the Oldham coupling portion transmits driving force of the motor to the hollow shaft, allowing a misalignment between an axis of the hollow shaft and an axis of the output shaft.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: August 20, 2019
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Yoshikazu Nakamaru
  • Patent number: 9976452
    Abstract: A reciprocating cylinder seal assembly has an elastomeric seal with a radially inwardly directed oil sealing lip and a radially inwardly directed gas sealing lip, wherein both lips are in elastomeric-to-metal sealing contact with a reciprocating engine liner. The assembly further has a U-shaped seal retainer that is attached to the elastomeric seal, where the U-shaped seal retainer is placed in direct intimate contact with a cylindrical engine housing. The U-shaped seal retainer and a reciprocating engine housing may be separated by and be in contact with a major portion of a J-shaped gas shield with a hook portion that is located between the oil sealing lip and a manifold port, where the hook portion of the J-shaped gas shield has a metal backer ring embedded in it.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: May 22, 2018
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Glenn Buuck, Thomas G. Heller
  • Patent number: 9803752
    Abstract: A sealing assembly for a shaft includes: a first sealing component; a first spring energizer associated with said first sealing component; an annular support member configured for supporting said first sealing component; a second sealing component; a second spring energizer associated with said second sealing component, said first and second sealing components each having a pair of seal lips, said pairs of seal lips facing each other, said first and second spring energizers each configured for energizing respectively said first and second sealing components, each said spring energizer being respectively between one said pair of seal lips, said annular support member being disposed about the shaft and positioned between said first and second sealing components and said first and second spring energizers, said annular support member including two outwardly facing protuberances each of which interfits with a respective said pair of seal lips.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: October 31, 2017
    Assignee: Trelleborg Sealing Solutions US, Inc.
    Inventors: Larry J. Castleman, Gregory D. Jones, Brian Bowen
  • Patent number: 9657752
    Abstract: A master cylinder for a regulated braking system having at least one piston, which is movable in a housing and which is sealed from a pressure chamber by a sealing element arranged in a ring groove of the housing, which can be connected to an unpressurized supply chamber by control passages designed in the pistons. In order to reduce the flow resistance of the control passages at the same dead stroke, the control passages have a control edge designed parallel to a piston end face of at least one of the pistons.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: May 23, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Harald König, Andreas Bischoff, Peter Drott, Makato Inaba, Heinrich Kreh, Udo Jungmann, Filip Janosek
  • Patent number: 9581199
    Abstract: In a fulcrum bearing device for a pulley arm, a sleeve is inserted in a shaft hole formed in a boss portion of a pulley arm, washers are fitted on the outer peripheries of small diameter tube portions formed at the respective end portions of the sleeve, and the sleeve is fixed to an engine block by means of a bolt inserted through the sleeve and tightened, so that the pulley arm is pivotally supported. The shaft hole is formed at its respective end portions with seal receiving recesses having large diameters. Each seal member includes a cylindrical portion provided on its outer peripheral portion and press-fitted in the seal receiving recess, and a radial lip extending obliquely inwardly and provided on the inner periphery of the seal member. The distal end portions of the radial lips are kept in elastic contact with the outer diameter surface of the sleeve.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: February 28, 2017
    Assignee: NTN CORPORATION
    Inventors: Tadahisa Tanaka, Seiji Sato, Takehiro Takano
  • Patent number: 9475343
    Abstract: A sealing device includes a core metal that is fitted to the outer ring, and a sealing member that is fixed to the core metal. The core metal has a cylindrical portion that is fitted to the inner periphery of an end portion of the outer ring, an outer annular portion, and an inner annular portion. The sealing member has a covering portion that covers the outer annular portion and the cylindrical portion, and a space is formed between the covering portion and the flange. The sealing member further has an inner lip portion, and an outer lip portion. The covering portion has a deformed portion used to enlarge the space to suppress stagnation of water in the space.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: October 25, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Teruyuki Wakisaka, Kazuki Takamatsu
  • Patent number: 9297457
    Abstract: A sealing device is capable of fixing an elastomeric seal relative to a support member without using an adhesive or an adaptor. The support member (120) is configured from a stepped annular member having a small diameter portion (121) on the sealed liquid side (L) and a large diameter portion (122) on the opposite side (A) intervened by the small diameter portion (121). The large diameter portion (122) being larger in outer diameter than the small diameter portion (121), and the elastomeric seal (110) has an interference with an inner peripheral surface of a shaft hole (31) of the housing (30) and an interference with each of the small diameter portion (121) and the large diameter portion (122), and is fixed in a state in which the elastomeric seal (110) is press-fitted in between the inner peripheral surface of the shaft hole (31) and the support member (120).
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: March 29, 2016
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Yasuhisa Arita
  • Publication number: 20150083481
    Abstract: Seal assemblies in which a seal member having an energizer located in a seal body groove is positioned inside a housing cavity of a housing are disclosed. The sealing member and the energizer, which can be an O-ring or a spring energizer, can be retained inside the housing cavity by positioning a portion of the energizer in a groove in the housing cavity in a locking or latching engagement. Methods of making and using seal assemblies are also disclosed.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 26, 2015
    Inventor: Mike Foster
  • Publication number: 20150061233
    Abstract: In a reciprocating sealing device sealing two members by mounting a packing to a mounting groove in one of two relatively reciprocating members, and bringing the packing into contact with the other member, the packing is provided with an annular base part, a stationary side lip, and a sliding side lip. A back ring having a lower hardness than the packing is interposed between the annular base part and a groove side surface of the mounting groove. The back ring forms a space region in relation to the other member. The annular base part is provided with a shape that the annular base part does not protrude out of an extension of a peripheral surface of the sliding side lip in a free state by forming a cross sectional shape of a heel part into a circular arc shape or a taper shape.
    Type: Application
    Filed: October 15, 2013
    Publication date: March 5, 2015
    Applicant: NOK CORPORATION
    Inventors: Kazunori Jinbo, Hiroki Okada, Toru Araki
  • Patent number: 8955850
    Abstract: An abeyance seal includes a polymer actuation ring, which defines a flexible sealing lip normally spaced from the shaft. When subjected to leakage, this element collapses against the shaft and forms an initial sealing. Secondarily, a metal sealing/anti-extrusion ring provides a second seal during leakage. The polymer ring provides the initial sealing function during leakage at low differential pressure, and once the polymer ring seals to the shaft, increased sealed pressure loads the polymer ring against the metal sealing/anti-extrusion ring causing it to deform so that the metal ring comes into contact with the shaft to form a second seal.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 17, 2015
    Assignee: Flowserve Management Company
    Inventors: James D. Saucerman, Lionel A. Young, Ronald L. Grace, John Davis, David Zegres
  • Publication number: 20140353915
    Abstract: A seal arrangement includes two machine components which are arranged so as to be able to be moved relative to each other along/about a movement axis, and having at least one resiliently deformable seal which is retained in a press-fitting manner on a seal retention structure on one of the two machine components. The seal forms a sliding guide for the two machine components, and has at least one sealing lip which is in sealing abutment with the other machine component in each case and which extends in an axial direction away from the seal retention structure. A free end portion of the sealing lip is supported by means of at least one resiliently deformable pretensioning element on one machine component in such a manner that the free end portion is in abutment with the other machine component with a defined contact pressure.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventor: Holger Jordan
  • Publication number: 20140339779
    Abstract: A dustproof member for a measurement device is provided. The measurement device includes a frame in which a scale is held and which has an insertion opening that extends in a longitudinal direction, and a detector that is inserted through the insertion opening and capable of moving along the insertion opening in the longitudinal direction to obtain position information from the scale. The dustproof member is provided on the frame to cover the insertion opening of the measurement device. The dustproof member includes a reinforcing member that extends continuously in the longitudinal direction and that is disposed in a substantially central region of the dustproof member in a width direction.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicant: MITUTOYO CORPORATION
    Inventors: Kazuhiko Kodama, Takanori Otsuka, Kazushi Kikuchi, Yoshihide Osawa, Yusuke Kurosawa
  • Patent number: 8851481
    Abstract: A seal for sealing a space between a shaft and a housing, includes a base member coupled with one of the housing and the shaft and a generally annular, elastomeric sealing member sealingly contactable with the other one of the housing and the shaft. The sealing member is coupled with the base member such that the sealing member is circumferentially strained to reduce friction between the sealing member and the other one of the housing and the shaft. The seal assembly is preferably formed by providing a base member having a generally annular carrier portion and a generally annular, elastomeric sealing member, coupling the sealing member with the annular portion of the base member, and plastically deforming at least a section of the base member carrier portion such that the sealing member is circumferentially strained.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 7, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Yefim Epshetsky, Alex Paykin, Michel Organisciak
  • Publication number: 20140284883
    Abstract: A seal assembly includes a lip seal having an axis, a central opening and a radial extension extending radially inward. The radial extension may be adapted to apply a sealing force against a shaft extending through the central opening by bending. The radial extension may extend at least partially along an axial direction. A support member that is resilient may be positioned adjacent the radial extension such that the support member limits bending of the radial extension.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 25, 2014
    Applicant: Saint-Gobain Performance Plastics Corporation
    Inventors: Jan Kustermans, Herman Dubois, Roel Maes, Kris Van Gils, Gino Stevenheydens, Wim Vandenheuvel
  • Patent number: 8840116
    Abstract: [Object] To provide a seal mechanism that reduces a maintenance frequency for replenishment of a lubricating material and has small friction resistance, and a treatment apparatus equipped with the seal mechanism. [Solving Means] A lip seal (12) of a seal mechanism (100) is arranged so as to surround a drive shaft (25), and a lip portion (12b) thereof includes a seal portion (12c) that comes into contact with the drive shaft (25). A wall member (15) is attached to the drive shaft (25) so as to close a lower opening of a mounting member (30) and face the lip seal (12). By at least the mounting member (30) and the wall member (15), a container capable of accommodating a lubricating material (16) is formed. A gap (17) set such that the lubricating material (16) does not pass therethrough is provided between the wall member (15) and a holding base body (60).
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: September 23, 2014
    Assignee: Ulvac, Inc.
    Inventors: Kazuhiro Musha, Hirofumi Minami, Kiyotaka Yamada
  • Publication number: 20140265139
    Abstract: Sealing assemblies to provide sealing between a shaft and a housing comprising a sealing component comprising a body section as well as an outer flange and an inner flange both extending from said body section; a supporting component receiving said sealing component and comprising a relatively thick inner arm projecting into said sealing component and providing a supporting area spanning an inner portion of said body section and a portion of said inner flange; an anti-extrusion component engaged with said relatively thick inner arm; the minimum clearance between said anti-extrusion component and said shaft being less than the minimum clearance between said relatively thick inner arm and said shaft; said inner flange comprising a sealing area; wherein said sealing assembly is to be received in a cavity in said housing or on said shaft.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: BAL SEAL ENGINEERING, INC.
    Inventors: Farshid Dilmaghanian, Peter J. Balsells
  • Patent number: 8828178
    Abstract: A sealing device which comprises a slinger fixedly fitted to the rotary side member, a core member fixedly fitted to the stationary side member, and an elastic sealing member fixed to the core member and having a seal lip which elastically and slidably contacts the slinger. The slinger comprises a fitting cylindrical portion to be fitted into the rotary side member, a brim portion extending its radial direction at one end of its outside relative to a sealed portion of the fitting cylindrical portion, and a rotary side fixing member fixed to the brim portion. Further, the slinger is made in such a manner that an adhesive layer is formed on its whole surface including a contacting side surface where the seal lip contacts by applying adhesive agent thereon, then the fixing member is integrally fixed thereto, thereafter the adhesive layer is partially removed only in the contacting side surface.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: September 9, 2014
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Hironori Yamamoto, Koki Ishida, Tatsuo Katayama, Tadashi Kasamoto, Yoshihiko Yamaguchi, Chihiro Asanuma
  • Patent number: 8808099
    Abstract: A protective screen mounted on an outer cylindrical surface of a constant-velocity joint and facing towards a sealing device of a rolling-contact bearing which is angularly coupled to the constant-velocity joint for protecting the sealing device and the rolling-contact bearing from the action of external agents; the screen being provided with: an annular wall, which is transverse to an axis (A) of rotation of the constant-velocity joint and is arranged in axial abutment against a side wall of said constant-velocity joint, a central hole, which is made through the annular wall and through which a shaft of the constant-velocity joint passes with play, and a plurality of elastic mounting and centering fins, which are distributed uniformly about the central hole and extend unsupported from the annular wall such that they are coupled to the outer cylindrical surface of the constant-velocity joint.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: August 19, 2014
    Assignee: Aktiebolaget SKF
    Inventors: William Finetti, Dominik Fischer
  • Patent number: 8800733
    Abstract: A guiding and sealing unit for a shock absorber rod including a bushing and a sealing assembly, integrally carried by an end of the bushing, and including a sealing ring made of elastomeric material having at least one annular sealing lip which radially and overhangingly protrudes towards a symmetry axis, and a metallic reinforcing structure, having a flange-shaped portion that abuts the end of the bushing and a sleeve-shaped portion operatively associated to the sealing lip; the sealing ring has a flange-shaped portion which radially extends from a root portion of the at least one annular lip, and an annular projection integrally formed with the flange-shaped portion, which axially and protrudingly extends from the latter, facing the piston and shaped to make, a limit stop element for the piston; the flange-shaped portion of the reinforcing structure is coupled to the flange-shaped portion and extends under the annular projection.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: August 12, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Roberto Pasino
  • Publication number: 20140210167
    Abstract: A seal shaft for use in an air cycle machine has two axial edges. An axial distance is measured between contact faces at the axial edges, with a tolerance to the dimension. A greatest variation between the axial distance at a plurality of spaced locations on the edge face is maintained with a ratio of the greatest variation to the tolerance being less than 0.2. A rotor assembly, an air cycle machine and a method are also disclosed.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Mark Vignali, Robert M. Pragluski
  • Publication number: 20140175758
    Abstract: A shaft seal assembly includes a seal component with a bore retention feature, and a housing structure. The seal component includes a hook retention feature including a hook element that hooks around a ridge of the housing structure that partially defines the bore. The hook retention feature may include a first surface, a second surface, and a third surface that define a recess that receives the portion of the housing structure. The third surface may be a bottom surface of a hook that extends around the received portion of the housing structure.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Inventor: Berndt L. Luchs
  • Patent number: 8720904
    Abstract: A static sealing device for a wheel hub assembly, an inner ring operatively associated with a constant velocity joint, an outer ring coupled with the wheel hub, including a first sealing assembly arranged between the inner ring and an outer ring for protecting respective rolling bodies, and a second sealing assembly integrally carried by the inner ring, arranged straddling the wheel hub and the outer ring of the joint; wherein the first sealing assembly includes a shield anchored to the inner ring of the bearing and provided, on the first side of the joint, with a flange portion carrying an annular signal generating element towards the joint which leaves an annular radially inner area of the flange portion uncovered, defining an annular seat between it and the inner ring in which an edge radially folded on the outside of a tubular core of the second sealing assembly is coupled.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: May 13, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Marcello Rossi
  • Patent number: 8708343
    Abstract: A seal device where a seal lip reliably maintains shaft sealing relative to high-pressure fluid that is to be sealed and where the equivalent Mises stress occurring in the seal lip is reduced to extend the durable term of the seal lip longer. A backup ring has a tapered section continuously extending from a fixation section of the backup ring and also has a forward end section. A rounded surface (E) with a curvature radius (R-1) is formed at least at a boundary where a surface (D) of the tapered section changes to a surface (F) of the forward end section. A portion of the surface (D) of the tapered surface, which portion is in contact with the rounded surface (E) at the boundary, is a projected curvature surface having a curvature radius greater than the curvature radius (R-1) of the boundary.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 29, 2014
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Hiroshi Ebihara, Yasuhisa Arita, Yasuhiro Ikeda
  • Patent number: 8690444
    Abstract: The present disclosure refers to a crankshaft bearing arrangement for an internal combustion engine. The bearing arrangement comprises: a bearing arranged at a crankshaft of an internal combustion engine; a bearing seat for housing the bearing; and a sealing arrangement for sealing against the crankshaft and the bearing seat. The at least one part of the bearing seat has a reinforcement arranged in the bearing seat, and a surface of the at least one part of the bearing seat, which surface bears against the bearing, is made from a plastic material.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: April 8, 2014
    Assignee: Husqvarna Aktiebolag
    Inventors: Peter Björkman, Mats Granstedt
  • Patent number: 8684362
    Abstract: The present cartridge seal assemblies pertain to rotary lip-type seals. In certain embodiments, a sealing member is constructed of a relatively hard material that increases the lifespan of the sealing member. The sealing member is energized with a canted-coil spring, which in some embodiments includes an adjustable spring force. The present embodiments enable control of sealing force to achieve an appropriate sealing force between the sealing member and the shaft based on factors such as temperature, pressure, rotary speed, properties of fluid media, etc. to achieve longer seal life.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 1, 2014
    Assignee: Bal Seal Engineering, Inc.
    Inventors: Pete Balsells, Farshid Dilmaghanian, Derek Changsrivong
  • Patent number: 8662502
    Abstract: The present application provides a method of mounting lip seals within a sleeve assembly of a fuel nozzle. The method may include the steps of sliding a first lip seal along a second diameter tube until the first lip seal contacts a first tube flange of a first diameter tube, sliding a seal spacer along the second diameter tube until the seal spacer contacts the first lip seal, and sliding a second lip seal along the second diameter tube until the second lip seal contacts the seal spacer.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: March 4, 2014
    Assignee: General Electric Company
    Inventors: Lucas John Stoia, Karthik Subramanian
  • Patent number: 8651496
    Abstract: A seal to seal a gap between a rotatable component (4, 18) and a non-rotatable component comprises: A fastening section adapted to be fixedly mounted in relation to the non-rotatable component, a sleeve-like section (3) adapted to be mounted around the rotatable component (4, 18), a resilient section (7) between the sleeve-like and fastening section comprising an arcuate portion (8), and in an unmounted condition, the sleeve-like section (3) has an inner diameter, DSEAL, with a predefined magnitude relative to an outer diameter of the rotating component, DSHAFT, such that 0.9?DSEAL/DSHAFT?1.1.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: February 18, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Jürgen Kurth, Clifford Roland Worsley
  • Patent number: 8622185
    Abstract: A sealing arrangement for a pressurizing-agent-operable control device of a clutch arrangement, for sealing a chamber which is pressurizable with a pressurizing agent, assigned to the clutch arrangement, from the interior space of the clutch arrangement; comprising at least one elastic sealing device. The sealing device is guided on at least one sheet metal element, which is attached to an element that delimits the chamber which is pressurizable with a pressurizing agent. A double clutch arrangement having a sealing arrangement.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: January 7, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Manuel Metzinger, Ivo Agner, Oliver Noehl
  • Patent number: 8622397
    Abstract: An oil seal has a first seal member including a main lip and a first dust lip, and a second seal member installed in a machine outer side of the first seal member. The second seal member integrally has an end surface covering section covering an end surface section of a housing, an outer peripheral insertion section inserted from one side in an axial direction to an outer peripheral surface of the housing and engaged with a stepped engagement section in the outer peripheral surface of the housing so as to prevent the second seal member from coming off from the housing, an inner peripheral insertion section inserted to an inner peripheral surface of the shaft hole in the housing from one side in the axial direction, and a second dust lip slidably coming into close contact with the shaft in the machine outer side of the first dust lip.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 7, 2014
    Assignee: NOK Corporation
    Inventor: Kokichi Hamamoto
  • Patent number: 8596872
    Abstract: A bearing assembly is presented having a novel bearing seal design that, in one embodiment, combines the sealing advantages of both a labyrinth-like seal in combination with a contact seal. The seal is held perpendicularly to the sealing surface, and in one embodiment, substantially divides the sealing forces equally between the lubricant seal portion and the dust seal portion of the seal by virtue of the symmetry of the seal geometry and the application of the resisting force substantially along the seal body's centerline. The seal departs from the cantilever geometry of prior art seal designs, and in one embodiment, provides an inherently stiffer seal.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: December 3, 2013
    Assignee: Amsted Rail Company, Inc.
    Inventor: Jessica Pruden
  • Patent number: 8573601
    Abstract: To prevent muddy water intrusion into a sliding section (S1) of an oil seal lip (13), a sealing device (1) has an oil seal (10) mounted at an opening end (2a) of a housing (2) and a slinger (20) mounted axially outside the oil seal (10) on a rotating body (5), the oil seal (10) is formed from a rubber-like elastic material integrally with a metal reinforcement ring (11) and has the oil seal lip (13) slidably contacting with the outer peripheral surface of the rotating body (5) and a side lip (15) slidably contacting with the slinger (20), the reinforcement ring (11) has a sliding tube section (11b) radially outside a sliding section (S2) of the side lip (15), and a external seal lip (23) provided on a radially outer section (22a) of the slinger (20) slidably contacts with the outer peripheral surface of the sliding tube section (11b).
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: November 5, 2013
    Assignee: NOK Corporation
    Inventor: Takehiro Nakagawa
  • Publication number: 20130277919
    Abstract: A sealing device includes: a sealing ring (1) slidably in hermetic contact with a surface of a shaft (A); a hollow partition wall (2) in contact with the sealing ring (1); and a housing (B) holding the sealing ring (1) and supporting the hollow partition wall (2). The sealing ring (1) is formed of an elastic material, and includes a lip part (1a) in sliding contact with the entire periphery of the surface of the shaft (A), an elastic arm part (1b) supporting the lip part (1a) at a sliding contact position, and a key part (1c) connecting the elastic arm part (1b) and the housing (B). The straining force on the shaft (A) is adjusted by expansion and contraction of the hollow partition wall (2).
    Type: Application
    Filed: January 12, 2012
    Publication date: October 24, 2013
    Applicant: WARTSILA JAPAN LTD.
    Inventors: Nobuhiro Himeno, Mashiba Kyogoku, Masakazu Tamura
  • Patent number: 8544850
    Abstract: Seal assemblies for sealing around a moveable shaft, such as rotary or reciprocating, or static, are described. The seal assemblies prevent the passage of lubricant or fluid from a relatively high pressure area on a first side of the seal to a relatively low pressure area on a second side of the seal. In some embodiments, these seals are energized by energizers, such as circular springs or canted springs, to keep the seal in contact with the moveable shaft. The seals have primary and secondary seals. The secondary seal provides initial moderate sealing against abrasive particles or contaminants to reduce the exposure and wear of the primary seal.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: October 1, 2013
    Assignee: Bal Seal Engineering, Inc.
    Inventors: Pete Balsells, Mike Foster, Majid Ghasiri, Sid Niknezhad
  • Publication number: 20130243355
    Abstract: A side seal for a linear guide apparatus including a guide rail, a slider, and a plurality of rolling elements includes seal members formed of different materials, a holder plate and covers. Both seal members have recesses formed in a first face of a base and fitted with a protrusion of the holder plate. Both seal members have respective lips directed in opposite directions separated from each other. A tip of the lip of the first seal member is formed to have a shape in plane contact with the face of the guide rail. A tip of the lip of the second seal member is formed to have a shape in line contact with the face of the guide rail.
    Type: Application
    Filed: September 14, 2011
    Publication date: September 19, 2013
    Applicant: NSK LTD.
    Inventor: Koichi Kawakami
  • Publication number: 20130202235
    Abstract: A sensor subassembly for a vehicle has at least one sensor unit arranged in a cap-shaped plastic part. The cap-shaped plastic part is carried by a retaining bush and seals off the retaining bush at one end. An associated device is configured to measure rotational movement of a wheel bearing. A resilient sealing and compensating element in pressed in between the-shaped plastic part and the retaining bush, in a first sealing area for sealing off a first leakage path, so that the cap-like plastic part, in conjunction with the sealing and compensating element, seals off the retaining bush tightly at one end.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 8, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Kenichi Ninomiya, Matthias Waibler, Anwar Hegazi, Andreas Fink, Mirko Scheer
  • Patent number: 8474825
    Abstract: To improve sealing performance, a sealing device comprises an oil seal (10) mounted to a non-rotating housing (2), and a dust cover (20) mounted to a rotating body (5) outside the oil seal (10), one of the oil seal (10) and the dust cover (20) facing each other has an external seal lip (24) slidably in close contact with the other of them (10, 20) outside the slide sections (S1, S2) between the oil seal (10) and the rotating body (5), the oil seal (10) and the dust cover (20) have non-contact lips (16, 25) which are positioned outside the slide sections (S1, S2) and inside the external seal lip (24), have substantially conical tubular shapes becoming larger in diameter toward the tips thereof, and are loosely inserted to each other, and a labyrinth seal (30) is provided at the outer diameter side of the external seal lip (24).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: July 2, 2013
    Assignee: NOK Corporation
    Inventor: Takehiro Nakagawa
  • Publication number: 20130127119
    Abstract: A sealing assembly for sealing a rolling bearing, between a first and a second bearing part, where the two bearing parts are rotatable relative to each other and form therebetween both an axial space and a radial space. The sealing assembly includes: A contact member having a mounting section for attachment and a ring-shaped contact section for positioning the contact member on the second bearing part, and a carrier mountable to the first bearing part and has an elastic member forming a first axial sealing lip and/or a radial sealing lip. The contact member and a radially extending portion of the second bearing part together form a first collecting channel, and that an opening leading into the first collecting channel should be at least partially defined by an end section of the contact member.
    Type: Application
    Filed: May 31, 2011
    Publication date: May 23, 2013
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Alexander Haepp, Wilhelm Walter
  • Patent number: 8439363
    Abstract: A dynamic radial shaft seal assembly includes an inner wear sleeve having a cylindrical inner wall with a bore sized for receipt about a shaft and an outer running surface. The inner wear sleeve has a flange extending radially outwardly from the running surface. The assembly further includes an outer case having cylindrical outer wall configured for receipt in a housing and a rim extending radially inwardly from the outer wall. An elastomeric body is attached to the rim. The elastomeric body includes a main seal lip configured to engage the outer running surface of the inner wear sleeve and a plurality of thrust pads extending axially from the rim for engagement with the flange. The thrust pads are spaced circumferentially from one another by gaps. The elastomeric body further includes a first dust exclusion lip extending axially from the leg and bridging the gaps.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: May 14, 2013
    Assignee: Federal-Mogul Corporation
    Inventors: Gerald A. Greca, David M. Toth
  • Patent number: 8388230
    Abstract: A seal guard 12 for a wide inner ring bearing assembly 10 comprising an annular member 22 configured for attachment to an external surface 24 of a bearing outer ring 16, and which radially encloses the various seal components 18 disposed within an annular opening between the inner ring 14 and outer ring 16. The annular member 22 includes an angled external surface 22A adapted to deflect external contaminates away from direct impingement upon the seal components 18.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 5, 2013
    Assignee: The Timken Company
    Inventors: Anil S. Kulkarni, Craig R. Etheridge, Jennifer Smith
  • Publication number: 20130049306
    Abstract: A radial shaft seal configured for receipt in a housing and about a shaft to sealingly isolate an air-side of the shaft seal from an oil-side of the shaft seal is provided. The seal includes an annular mounting portion and a seal lip operably attached to the mounting portion. The seal lip has an annular inner sealing surface extending axially between an oil-side end and a free air-side end. The inner sealing surface has a first groove region extending along the shaft in sealed engagement therewith and a second groove region extending along the shaft in sealed engagement therewith. The first groove region and the second groove region are spaced axially from one another by an intermediate non-grooved region. The first groove region is configured to direct contamination toward the air-side of the seal and the second groove region is configured to direct lubrication toward the oil-side of the seal.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Inventors: Andrew Payne, Brent R. Sedlar, David M. Toth, Frederick R. Hatch
  • Patent number: 8371586
    Abstract: A bearing seal includes a metal core having a radially outer portion engaged in an inner seal groove of a bearing outer race. The core includes a bent portion engaged in the seal groove, a radially outer flange extending inwardly from an end of the bent portion located inside the bearing, a tapered tubular portion having a large-diameter end thereof connected to a small-diameter end of the outer flange and a small-diameter end thereof located axially outwardly of its large-diameter end, and a radially inner flange extending inwardly from the small-diameter end of the tubular portion. A rubber seal is fixed to an inner surface of the metal core that faces the interior of the bearing. The rubber seal includes a thick-walled portion having an inner radial step, and formed with three lips that elastically contact the inner race outer surface. The thick-walled portion includes a small-diameter thick-walled portion.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: February 12, 2013
    Assignees: NTN Corporation, Nakanishi Metal Works, Co., Ltd.
    Inventors: Yoshitaka Okaji, Eiichi Urakami
  • Patent number: 8366117
    Abstract: A sealing device which includes an annular exterior sealing member; a reinforcing ring disposed in a housing hole to surround an outer circumference of a rotating shaft and to press a fitting portion of the exterior sealing member against an inner circumference surface of the housing hole; a retainer mounted in the reinforcing ring; an auxiliary sealing member having one end portion that is pinched and retained between the retainer and the reinforcing ring and the other end portion that is pressed against the outer circumference surface of the rotating shaft; and an elastic tongue piece and an engagement portion that are provided between the retainer and the reinforcing ring.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: February 5, 2013
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Tomoki Miyake, Yasuhiro Ikeda, Masanobu Kimura
  • Patent number: 8348281
    Abstract: A stern tube sealing assembly and a seal ring thereof has a key part having an inverted V-shape, a front step part on the front side, and a back step part on the back side thereof. The seal ring width in a propulsion-shaft axis direction becomes thinner in the transition area from the key part toward a heel part. The inner diameter of the key part at the back step part is greater than that of the key part at the front step part. The ring has a lip part having a V-shaped lip tip protruding inwardly in the radial direction and a spring groove having a semicircular cross-section. The center of the spring groove is nearer to the inboard side than the lip tip, by an offset in the axis direction, the offset being within approximately 10% of the orthogonal projection length of the width of the lip back.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: January 8, 2013
    Assignee: Wartsila Japan Ltd.
    Inventors: Hisashi Yoshida, Motofumi Inaba, Minoru Takayasu