Protrusion Or Bead Cross-sectional Profile Patents (Class 277/574)
  • Patent number: 11261969
    Abstract: A sealing assembly having a seal casing. A decreased diameter portion extends inboard from at least a portion of a first end portion of the substantially cylindrical portion and an axially extending portion extends inboard from at least a portion of a second end portion of the decreased diameter portion of the casing. One or more first sealing portions having one or more static sealing ribs extend from at least a portion of an outer surface of the substantially cylindrical portion. One or more second sealing portions are integrally connected to at least a portion of the decreased diameter portion, the axially extending portion and/or an inner surface of the substantially cylindrical portion. The one or more second sealing portions have a retaining member sealing surface with one or more sealing member retention ribs extending from at least a portion of an outer surface of the retaining member sealing surface.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 1, 2022
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: David A. Brock, Stephen J. Carr, Cody P. Jennings
  • Patent number: 10359115
    Abstract: A cylinder device includes; a cylinder; a rod protruding from the cylinder; an annular member formed at one end side of the cylinder; an annular closing section formed further outward in a cylinder inward/outward direction than the annular member to close the one end side of the cylinder; and an annular seal ring provided inward in the cylinder inward/outward direction from an outer circumferential side of the closing section. The seal ring includes: a front end side outer circumferential seal section; a base end side outer circumferential seal section; a front end side inner circumferential abutting section; and a base end side inner circumferential abutting section. At least one set of seal sections or abutting sections is constituted by convex sections protruding in a radial direction.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: July 23, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Masahiro Ashiba
  • Patent number: 8944436
    Abstract: A radial shaft seal has a support body and at least one sealing element that is a part produced separate from the support body and is connected to the support body by an adhesive connection. A static seal part that is a part separate from the sealing element and is arranged on a wall of the support body is provided. Alternatively, the sealing element comprises an integral static seal part and the static seal part is formed by a radially projecting edge of the holding part of the sealing element that projects radially past the wall of the support body.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: February 3, 2015
    Assignee: KACO GmbH + Co. KG
    Inventors: Klaus-Jürgen Uhrner, Roland Bleier
  • 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: 8517389
    Abstract: A fixing arrangement for a rubber seal for sealing a rolling bearing is proposed which can be easily mounted in position by press-fitting and which prevents rotation of the rubber seal together with the rotary member of the bearing. A thick-walled fitting portion 3 and a protrusion 4 are formed on the radially outer portion of a rubber seal 1 reinforced by a metal core 2. The fitting portion 3 is press-fitted in a seal groove 22 formed in the radially inner surface of an outer race 21 at each end. The protrusion 4 is brought into elastic contact with a large-diameter cylindrical surface 23 formed on the outer race 21. Thus, the rubber seal 1 is fixed in position and prevented from rotating together with the inner race of the bearing.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: August 27, 2013
    Assignees: NTN Corporation, Nakanishi Metal Works, Co., Ltd.
    Inventors: Yoshitaka Okaji, Eiichi Urakami
  • Patent number: 8388232
    Abstract: There is provided a rolling bearing which comprises at least: an outer ring 10 and an inner ring 20 disposed rotatable relative to each other; and plurality of rolling elements 40 respectively interposed rollably between the outer and inner rings. The outer ring is fitted into a housing (not shown) and the inner ring is fitted with a shaft (not shown), whereby the rolling bearing supports rotation between the shaft and housing. Between the fitting surface (not shown) of the housing and the outer circumferential surface 13 of the outer ring and/or between the fitting surface of the shaft and the inner circumferential surface 23 of the inner ring, there is interposed an O-ring 30 made of an elastic member having a reduced friction coefficient between the fitting surface of the housing and the outer circumferential surface of the outer ring or between the fitting surface of the shaft and the inner circumferential surface of the inner ring.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 5, 2013
    Assignee: NSK Ltd.
    Inventors: Akira Iida, Ryuya Fukuda
  • Patent number: 8317202
    Abstract: Mounting rings and methods for mounting structures to shafts are provided. The rings and methods may be used to mount other rings or housings to a shaft. The rings are characterized by having flexible inner diameters that can deflect under a radial load. The radial deflection of the inner diameter permits the rings to deflect and engage an outer diameter of a shaft. The engagement of the rings with a shaft provides at least some resistance to movement, for example, rotation and/or axial displacement, of the shaft relative to the ring and structure. In one aspect, the ring has a closed, hollow, construction, for example, a circular, oval, or polygonal closed, hollow construction. The ring may include a plurality of indentations, such as slots, on the inside diameter of the ring that may relieve at least some of the circumferential stress in the ring. Methods for using the rings to mount a structure to a shaft are also disclosed.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: November 27, 2012
    Inventors: John E. Rode, Sean E. Strait
  • Patent number: 8220778
    Abstract: A valve assembly preferably including a housing having a recess and a flange face and a valve sleeve disposed within the recess. The sleeve preferably includes an annulus having an outer surface and an inner surface that defines a passageway about a central axis, the outer and inner surfaces being radially spaced from one another to define a wall. The wall has a first end portion and a second end portion axially spaced from the first end portion, and homogenous material properties from the first end portion to the second end portion. Preferably, the first end portion defines a lip for supporting the annulus in the recess and further defines a first chamber that encases at least a portion of a first support member. The second end portion preferably defines a flange portion along the outer surface for engaging the flange and further defines a second chamber that encases at least a portion of a second support member.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: July 17, 2012
    Assignee: Tyco Valves & Controls, LP
    Inventors: Nicholas Langmesser, Johnny Ellis, Kristopher M. Weide
  • Patent number: 8136818
    Abstract: A seal lip of an oil seal is in slidable contact with a peripheral surface of a shaft. A lubricating oil supply section for collecting adhered oil and dropping it on the shaft is provided at a forward end portion of an installation section. The lubricating oil supply section has projections formed on the inner peripheral surface of the installation section to collect oil on the surface thereof. The surface of each projection has a recess for temporarily accumulating oil. Guidance projections, or a slope for collecting the oil, and dams are formed on a forward end face of the installation section to block the oil flowing down along the circumferential direction on the forward end face and guides the oil toward each projection.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 20, 2012
    Assignee: Nok Corporation
    Inventors: Satoshi Yamanaka, Takehiro Nakagawa, Masayuki Tanida, Hideharu Hyakutake, Hiroki Matsui, Hideyuki Furuyama, Go Kanzaki, Shinya Takeda, Kei Sasaki, Akira Yamaguchi
  • Patent number: 8127902
    Abstract: A sealing assembly including a sealing ring made of elastomeric material and having, integrally in one piece, at least one elastically deformable, annular sealing lip, at least part of which projects axially from and radially inwards of the sealing ring, from a respective root portion adjacent to a first axial end of the sealing ring, and towards a second axial end, opposite the first, of the sealing ring; and an annular reinforcing structure made of material which is elastically deformable but relatively much more rigid than the elastomeric material of the sealing ring and relative lip, and at least partly embedded in the sealing ring; wherein the reinforcing structure extends at least partly in an axial direction, at least partly alongside but on the opposite side to the sealing lip; the sealing lip being designed to define, when undeformed, a predetermined radial clearance between itself and a radially inner lateral wall of the sealing ring.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: March 6, 2012
    Assignee: Aktiebolaget KSF
    Inventor: Roberto Pasino
  • Patent number: 8042422
    Abstract: A sealing element for sealing off a drive unit, having a radial shaft sealing ring that has a radial sealing face for sealing off from a first component and a diametrically opposed radial sealing lip for sealing off from a further rotatable component, in which an axial sealing ring for axial sealing of a third component is integrally formed onto the radial shaft sealing ring.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: October 25, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Christian Meyer
  • Patent number: 8016265
    Abstract: A valve assembly preferably including a housing having a recess and a flange face and a valve sleeve disposed within the recess. The sleeve preferably includes an annulus having an outer surface and an inner surface that defines a passageway about a central axis, the outer and inner surfaces being radially spaced from one another to define a wall. The wall has a first end portion and a second end portion axially spaced from the first end portion, and homogenous material properties from the first end portion to the second end portion. Preferably, the first end portion defines a lip for supporting the annulus in the recess and further defines a first chamber that encases at least a portion of a first support member. The second end portion preferably defines a flange portion along the outer surface for engaging the flange and further defines a second chamber that encases at least a portion of a second support member.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: September 13, 2011
    Assignee: Tyco Valves & Controls LP
    Inventor: Kristopher Weide
  • Patent number: 8016294
    Abstract: A sealing device formed to seal between a fixed side member and a rotating side member, comprising a slinger having a fitting cylindrical part fitted to the rotating side member and a flange part formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion so as to be extended in the radial direction. A core comprises at least a fitting cylindrical part fitted to the fixed side member. The sealing device is characterized in that one end part of the fitting cylindrical part positioned on the outer side of the sealed portion is projected outward more than the sealed portion side inner surface position of the flange part of the slinger and a part of a seal lip part is formed to be brought into elastically slidable contact with the extended end face of the slinger.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 13, 2011
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Masanori Shibayama, Hiroshi Seno
  • Patent number: 8011670
    Abstract: A sealing device formed to seal between a fixed side member and a rotating side member, comprising a slinger having a fitting cylindrical part fitted to the rotating side member and a flange part formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion so as to be extended in the radial direction. A core comprises at least a fitting cylindrical part fitted to the fixed side member. The sealing device is characterized in that one end part of the fitting cylindrical part positioned on the outer side of the sealed portion is positioned on the sealed portion side more than the sealed portion side inner surface position of the flange part of the slinger and a part of a seal lip part is formed to be projected from near one end part of the fitting cylindrical part of the core and to be brought into elastically slidable contact with the extended end face of the slinger.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 6, 2011
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Masanori Shibayama, Hiroshi Seno
  • Patent number: 7926816
    Abstract: A sealing device with a tone wheel formed to seal between a fixed side member and a rotating side member. A slinger comprises a fitting cylindrical part fitted to the rotating side member and a flanged part radially extendedly formed at one end part of the fitting cylindrical part positioned on the outer side of a sealed portion. The outer surface of the flanged part positioned on the outer side of the sealed portion comprises a tone wheel stuck surface on which the tone wheel formed of a magnetic ring is stuck integrally with each other and an extended surface on which the tone wheel is not stuck and extended to the fixed side member.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: April 19, 2011
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Masanori Shibayama, Hiroshi Seno
  • Patent number: 7926819
    Abstract: A seal for use between the housing of an automatic transmission and the housing (can) of a transmission drive motor is disposed at each end of the drive motor housing. The seal includes a preferably metal annulus having inner and outer elastomeric ribbed seals secured thereto. The annulus, which defines a non-hardened “S” shape in cross section, maintains the shape and strength of the seal and the ribbed inner seal provides a fluid tight seal with the motor housing while the ribbed outer seal provides a fluid tight seal with the transmission housing.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: April 19, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Timothy J. Reinhart, Gregory W. Kempf, William S. Reed
  • Patent number: 7770898
    Abstract: A hydrodynamic sealing assembly including a first component having first and second walls and a peripheral wall defining a seal groove, a second component having a rotatable surface relative to said first component, and a hydrodynamic seal comprising a seal body of generally ring-shaped configuration having a circumference. The seal body includes hydrodynamic and static sealing lips each having a cross-sectional area that substantially vary in time with each other about the circumference. In an uninstalled condition, the seal body has a length defined between first and second seal body ends which varies in time with the hydrodynamic sealing lip cross-sectional area. The first and second ends generally face the first and second walls, respectively. In the uninstalled condition, the first end is angulated relative to the first wall and the second end is angulated relative to the second wall. The seal body has a twist-limiting surface adjacent the static sealing lip.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: August 10, 2010
    Assignee: Kalsi Engineering, Inc.
    Inventors: Lannie L. Dietle, John E. Schroeder
  • Patent number: 7722052
    Abstract: A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end face is covered. A rubber end face of the rubber portion and a face on a peripheral edge of a seal element are pressed to each other.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: May 25, 2010
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Hironori Oida, Tetsuya Ashida
  • Patent number: 7694754
    Abstract: An earth boring bit has a bit body having a depending bearing pin. A cone has a cavity rotatably mounted on the bearing pin. A seal groove is formed in the cavity of the cone. An elastomeric seal ring is located within the groove and forms a seal between a base of the groove and the bearing pin. The seal ring has two side surfaces, each spaced from one of the side walls of the groove by a clearance. Elastomeric protuberances protrude from each of the side surfaces of the seal ring for non-sealing contact with one of the side walls of the groove.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: April 13, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Aaron J. Dick
  • Patent number: 7445212
    Abstract: A brush seal for sealing a rotor with respect to a stator includes a bristle housing which is held on the stator or rotor, a cover plate, a supporting plate, a circumferential surface and two side surfaces and in which bristles oriented with their free ends to the rotor or stator are fastened. The bristle housing, for ensuring correct, anti-rotation installation in its seat, includes a first positioning arrangement on at least one side surface or the circumferential surface, the first positioning arrangement interacting in a positive-locking manner with a correspondingly configured second positioning arrangement on the stator or rotor or a separate fastening element for the definite positioning of the bristle housing.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: November 4, 2008
    Assignee: MTU Aero Engines GmbH
    Inventors: Alfons Gail, Lodewijk Prins, Klemens Werner
  • Patent number: 7127912
    Abstract: A modified multi-chambered container including a container body defining a central (e.g., liquid) chamber, a neck defining an opening to the central chamber, a flange extending upward from the neck, and a groove formed in the neck around the first opening. A collared O-ring includes an annular base mounted in the groove, and a ring-shaped collar extending from an upper portion of the base toward the opening. A hollow ball member is mounted on the neck such that an outer wall of the ball member contacts the O-ring collar. A housing is attached to the container body that pushes the ball member against the collared O-ring.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: October 31, 2006
    Assignee: Insta-mix, Inc., Subsidiary A
    Inventor: James W. Holley, Jr.
  • Patent number: 7051694
    Abstract: A sealing system for a shaft, in particular for a combustion engine, with a motor casing cover having a clearance hole for take-up of a carrier is shown having at least one dynamically and at least one statically effective sealing area and is equipped with a centering area that allows centering relative to the clearance hole, when the carrier is securely connected to the motor casing cover by means of a quarter-turn fastener. The centering area is arranged on the level of the quarter-turn fastener in such a way that the dynamic sealing area is aligned with a shaft and the static sealing area with given pressure can be used in a corresponding section of the motor casing cover.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 30, 2006
    Assignee: Federal-Mogul Sealing Systems, Bretten GmbH & Co.
    Inventors: Frank Warnecke, John Kapcoe
  • Patent number: 6715769
    Abstract: A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element, which contacts the rotation shaft, comprising a supporting metal for supporting a rear face of the seal member of rubber.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: April 6, 2004
    Assignees: Mitsubishi Cable Industries, Ltd., Kabushiki Kaisya Toyoda Jidoshokki Seisakusho
    Inventors: Atsushi Hosokawa, Hiromi Obata, Takeshi Baba, Tomoya Inagaki, Toshiro Fujii, Takayuki Imai, Naoya Yokomachi, Kazuo Murakami
  • Patent number: 6619664
    Abstract: Multiple circumferential rows of textured features are formed between the outer peripheral edge and the inner peripheral edge of a seal. The multiple circumferential rows of textured features form a boundary for incoming dirt and wash away abrasive particles as well as act as lubricant wells. The multiple rows provide additional protection from leakage and wear.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: September 16, 2003
    Assignee: Caterpillar Inc
    Inventor: Jerry A. Metz
  • Patent number: 6315302
    Abstract: A novel hydrodynamically lubricated compression type rotary seal that is suitable for lubricant retention and environmental exclusion. Particularly, the seal geometry ensures constraint of a hydrodynamic seal in a manner preventing skew-induced wear and provides adequate room within the seal gland to accommodate thermal expansion. The seal accommodates large as-manufactured variations in the coefficient of thermal expansion of the sealing material, provides a relatively stiff integral spring effect to minimize pressure-induced shuttling of the seal within the gland, and also maintains interfacial contact pressure within the dynamic sealing interface in an optimum range for efficient hydrodynamic lubrication and environment exclusion. The seal geometry also provides for complete support about the circumference of the seal to receive environmental pressure, as compared the interrupted character of seal support set forth in U.S. Pat. Nos.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: November 13, 2001
    Assignee: Kalsi Engineering, Inc.
    Inventors: William T. Conroy, Lannie L. Dietle, Jeffrey D. Gobeli, Manmohan S. Kalsi
  • Patent number: 6302404
    Abstract: A sealing device primarily for sealing off a slit-shaped space between two radially extending surfaces arranged about a shaft and axially displaceable relative to each other along the shaft includes a first sleeve-shaped seal part and an elastically resilient sealing body. The first sleeve-shaped part forms together with the shaft an axially open space facing the cooperating surface. The elastically, resilient sealing body has in an uncompressed state a cross-sectional area and/or a shape deviating from the area and/or shape of the axially open space. The sealing body when subjected to axial forces causing the sealing body surface and the cooperating surface to abut each other is compressed sealingly between the axial space and the cooperating surface, thereby creating a sealing engagement against the entrance of the slit-shaped space and against the shaft.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: October 16, 2001
    Assignee: SKF Sverige AB
    Inventor: Asbjörn Bundgart
  • Patent number: 6158743
    Abstract: A hub seal for installation on the wheel end of a heavy duty trailer or truck is disclosed which includes an annular casing having a radially outer surface configured to sealingly engage an accommodating surface of a wheel hub mounted for rotation about a stationary spindle shaft, and an annular wear ring mounted coaxial with the annular casing and having a radially inner surface configured to sealingly engage an outer periphery of a stationary spindle shaft. The sealing surface of the annular wear ring includes structure for providing radial torque resistance between the annular wear ring and the stationary spindle shaft and for limiting installation loads associated with installing the annular wear ring on the stationary spindle shaft. Similarly, the sealing surface of the annular casing includes structure for providing radial torque resistance between the annular casing and the wheel hub and for limiting installation loads associated with installing the annular casing in the wheel hub.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: December 12, 2000
    Assignee: Stemco Inc
    Inventors: Todd L. Anderson, Laurence B. Winn
  • Patent number: 6123338
    Abstract: A radial seal useful in linear ball bearings and designed to be secured during transportation as well as during operation of the bearing includes an arcuate disk portion having opposite sides. An arcuate projection is provided on each side of the disk portion, at least one of which is axially oriented. The projections are designed to have different diameters. This produces a stepped seating surface along the outside diameter of the radial seal that effects a reliable seating of the radial seal in the linear ball bearing. The radial seal can also be designed with two axially oriented projections disposed at different diameters on one side of the disk portion for projecting into an annular groove on the frontal face of the outer ring of the linear ball bearing. By constructing the projections with circumferential outer faces that slightly diverge in a cone-shaped manner, the projections further inhibit the seal from falling out of the groove.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: September 26, 2000
    Assignee: SKF Linearsysteme GmbH
    Inventors: Ludwig Edelmann, Andreas Geyer, Hermann Glockner, Holger Kristandt, Uwe Mayer, Henryk Velde, Lothar Walter
  • Patent number: 5895051
    Abstract: A rack seal for use with a rack bushing and seal retainer wherein the rack bushing is made of a thermoplastic material and includes a face with a plurality of cooling cavities. The rack seal includes a body member, an annular sealing face, and a retainer air side which is in constant contact with the thermoplastic bushing cavity face. The rack seal air side surface includes a bead segment. The bead segment has a predetermined height which creates a minimum contact at a full gap with the rack bushing and is compressible to a minimum gap with the rack bushing. The bead segment of the rack seal is in constant contact with the thermoplastic bushing such that any objectionable noises are eliminated during any separation of the rack seal and the thermoplastic bushing.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: April 20, 1999
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Todd Bowers