Having Installation, Removal, Assembly, Disassembly, Or Repair Feature Patents (Class 277/551)
  • Patent number: 10330202
    Abstract: A sealing device has a main lip sealing sealed fluid in a machine inside and a sub lip preventing intrusion of foreign materials in a machine outside, and structured such that both of the lips slidably come into contact with a peripheral surface of a shaft, wherein the sub lip is formed into a shape which is vertical to an axial direction or a shape which is directed to the main lip side, and a stepped shape is provided in the sub lip, the stepped shape unevenly distributing a generation position of a contact pressure peak in relation to the shaft in the sub lip. The sealing device can achieve both the shaft inserting property and the sealing performance in a sealing device having a main lip which seals sealed fluid in a machine inside, and a sub lip which seals foreign materials in a machine outside.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 25, 2019
    Assignee: NOK CORPORATION
    Inventor: Yuichi Tarukawa
  • Patent number: 10295062
    Abstract: A sealing element for sealing a high-pressure side from a low-pressure side at a rotating shaft, in particular in a pump, with a supporting ring configured to be arranged on a stator surrounding the shaft and from which a first annular membrane protrudes facing in the direction toward the shaft. From the first annular membrane, a second annular membrane protrudes facing in the direction toward the shaft. The first annular membrane is formed longer than the second annular membrane as viewed in the axial direction of the shaft, and the second annular membrane is configured with a sealing edge which is to be arranged lying on the shaft.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 21, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Poll, Klaus Meyer, Philipp Marius Schueller, Milena Milovanov
  • Patent number: 10274013
    Abstract: A bearing assembly for a cam follower assembly for a ram assembly for a metal can production necker includes two or more bearings. Each of the bearing includes an inner ring positioned within an outer ring and a plurality of rolling elements positioned therebetween. The bearing assembly includes a tire press fit on the outer rings of the bearings. The tire has an elongate body portion that extends between a first radially inward projecting shoulder and a second radially inward projecting shoulder. A radially inward facing surface extends between the first radially inward projecting shoulder and the second radially inward projecting shoulder. The first radially inward projecting shoulder extends further radially inward than the second radially inward projecting shoulder.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: April 30, 2019
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: Robert A. Pallini, Bradley T. Smith
  • Patent number: 10267422
    Abstract: The invention provides a sealing device which can suppress occurrence of static leakage and has a seal lip and a seal flange which are slidably in contact with each other, and a screw groove arranged in an end face, in an axial direction, of the seal flange. In the sealing device, the seal lip attached to a non-rotational housing side is slidably in contact with the end face, in the axial direction, of the seal flange on the rotational axis side, and which has the screw groove arranged in the end face, in the axial direction, of the seal flange so as to exert a fluid pumping action during rotation, is characterized in that the screw groove has an inner-circumferential-side inclined surface and an outer-circumferential-side inclined surface as the internal surfaces, and has a groove bottom part in a circular arc cross-sectional shape that interconnects both of the inclined surfaces.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: April 23, 2019
    Assignee: NOK Corporation
    Inventors: Yoshihisa Yamaguchi, Hideharu Hyakutake, Yuya Sakano
  • Patent number: 10160529
    Abstract: The propulsion unit comprises a strut having an upper portion with an upper end portion passing through a passage formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatable supported with a slewing bearing and sealed with a slewing seal. An upper slewing seal prevents lubrication medium leakage from the slewing bearing, whereby access to the upper slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the upper slewing seal. A lower slewing seal is positioned at a vertical distance below the upper slewing seal and prevents sea water from penetrating into the hull of the vessel, whereby access to the lower slewing seal is provided in a radial direction from the interior of the vessel or from the interior of the strut in order to be able to service the lower slewing seal.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 25, 2018
    Assignee: ABB Oy
    Inventors: Kai Karila, Jussi Kiiskilä, Ville Kortelainen, Erkki Ronkainen, Tero Tamminen
  • Patent number: 10041562
    Abstract: A sealing structure allows for formation of a side lip, as well as a labyrinth structure between an oil seal and a torsional vibration damper, even when a reinforcing ring has a short inward flange part. The sealing body 120 includes a side lip 124 extending from near a distal end of an inward flange part 112 radially inward and further toward an air side (A) than a dust lip 122 to a position not as far as the outer circumferential surface of a tubular part 210. An annular member 250 is further provided, which is fixed to the outer circumferential surface of the tubular part 210 further on the air side (A) than the side lip 124 and covering an outer circumferential surface of the side lip 124 such that there is a gap between the annular member 250 itself and the outer circumferential surface of the side lip 124.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: August 7, 2018
    Assignee: NOK CORPORATION
    Inventors: Yusuke Kamiya, Hiroki Matsui, Shinya Omoto, Toru Nakashima
  • Patent number: 10041415
    Abstract: The present invention relates to a combustion chamber for a gas turbine with a combustion chamber head and a heat shield which are designed in one piece, with the heat shield being provided with at least one recess, in which is arranged a burner or an annular sleeve enclosing the burner, with a burner seal being provided between the heat shield and the burner, characterized in that the heat shield is provided in the area of the recess with an annular groove, in which is arranged at least one elastic sealing element forming the burner seal.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 7, 2018
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Carsten Clemen, Michael Ebel
  • Patent number: 9926979
    Abstract: A sealing device for a bearing unit, where the unit has a radially outer ring, two rows of rolling bodies arranged, respectively, between the radially outer ring and a pair of radially inner rings. The sealing device further provides a spacer including an annular groove and configured to be arranged between the radially inner rings of the bearing unit and a seal housed inside the groove of the spacer. The seal is “U” shaped, defines a volume internally and is configured to be mounted in the annular groove with the concavity directed towards the axis of symmetry of the bearing unit.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 27, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Marco Giovanni Francesco Capozzi, Christian Kogler
  • Patent number: 9915347
    Abstract: A cassette seal having an internal ring with a cylindrical portion; a cover portion radially projecting from the cylindrical portion, and a covering portion axially projecting from the cover portion, wherein the covering portion is radially spaced from the cylindrical portion, and an external ring with axial flange, and a radial flange projecting in the internal ring direction, with a sealing body of an elastomeric material associated with the axial flange, wherein from the sealing body sealing lips are formed, wherein a first sealing lip with radial preload sealingly rests against the cylindrical portion's outer circumference, wherein a second sealing lip axially projects from the radial flange and extends in the direction of the covering portion's side facing the cylindrical portion, wherein a third sealing lip axially projects beyond the radial flange and on the outer circumference at least partly projects beyond the covering portion.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 13, 2018
    Assignee: CARL FREUDENBERG KG
    Inventors: Stefano Miletto, Luca Breusa, Francesco Vignolo, Pasquale Angiulli, Antonio Turaglio
  • Patent number: 9879727
    Abstract: A seal for a bearing assembly, including: a longitudinal axis; a first portion arranged to engage an outer ring for the bearing assembly; and a second portion extending radially inward and in a first axial direction from the first portion. The second portion includes: a first lip arranged to contact a rotatable shaft passing through the bearing assembly; and a second lip located past the first lip in a second axial direction, opposite the first axial direction, and arranged to be separated, in a radial direction, from the rotatable shaft by a first distance.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 30, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Alaa Makke, Michael Claassen
  • Patent number: 9829107
    Abstract: An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 28, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Bok Lee, Eo Jin Kim, Jeon Kook Lee
  • Patent number: 9788464
    Abstract: A power supply device supplies power to a substrate holder having a plurality of electrodes. The device includes a first fixed conductive member, a second fixed conductive member, a fixed insulating member fixed to an insulating housing portion and configured to insulate the first fixed conductive member from the second fixed conductive member, a first rotation conductive member, a second rotation conductive member, a rotation insulating member fixed to an insulating column portion and configured to insulate the first rotation conductive member from the second rotation conductive member, a first power supply member configured to supply a first voltage to the substrate holder via the first rotation conductive member and the first fixed conductive member, and a second power supply member configured to supply a second voltage to the substrate holder via the second rotation conductive member and the second fixed conductive member.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 10, 2017
    Assignee: CANON ANELVA CORPORATION
    Inventor: Kyosuke Sugi
  • Patent number: 9618117
    Abstract: An oil seal has a lip seal member, a slinger and a dust cover. The slinger has a thread groove carrying out a pumping action toward a diametrically outer side. The dust cover achieves a dust shake-off action by a centrifugal force at the shaft rotating time, and a labyrinth seal action by forming a micro gap in relation to the lip seal member. The lip seal member has a main lip and a dust lip. The elastic dust lip has a first bellows portion receiving an atmospheric pressure by an inner surface and receiving an internal pressure between the lips by an outer surface, a second bellows portion receiving the atmospheric pressure by an outer surface and receiving the internal pressure between the lips by an inner surface, and a lip end. A pressure receiving area of the first bellows portion is greater than the second bellows portion.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: April 11, 2017
    Assignee: NOK Corporation
    Inventor: Takehiro Nakagawa
  • Patent number: 9581037
    Abstract: The present application provide a seal for use between components engine facing a high pressure cooling air flow and a hot gas path in a gas turbine. The seal may include a first shim, a second shim with an air exit hole, one or more middle layers positioned between the first shim and the second shim, and one or more cooling pathways extending through the middle layers for the high pressure cooling air flow to pass therethrough and exit via the air exit hole into the hot gas path.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: February 28, 2017
    Assignee: General Electric Company
    Inventors: Matthew Troy Hafner, Victor John Morgan, Jacob John Kittleson, Neelesh N. Sarawate
  • Patent number: 9534636
    Abstract: A structure which ensures a movement of a seal lip disposed in a seal lip is realized by preventing foreign matters from permeating a seal internal space between a slinger and a seal ring. A labyrinth seal is disposed between an outer peripheral edge of a rotary side annular portion configuring the slinger and an inner peripheral surface of a stationary side cylindrical portion of a metal insert configuring the seal ring. In addition, a thickened portion is formed in a portion of an elastic member configuring the seal ring over an entire periphery. An auxiliary seal lip whose rigidity is lower than that of respective seal lips is disposed in the thickened portion over the entire periphery. The auxiliary seal lip prevents the foreign matters from adhering to the seal lip, and prevents the movement of the seal lip from being hindered.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 3, 2017
    Assignee: NSK LTD.
    Inventors: Akinobu Takayama, Yasuhiro Shiono, Masamitsu Watanabe, Masayoshi Tanahashi, Hironari Sakoda
  • Patent number: 9505264
    Abstract: A cover for a wheel-hub bearing made of plastic is provided. The cover includes an end wall that is arranged transversely with respect to a central axis (X) and a cylindrical mounting wall, which extends axially from one side of the end wall around the axis (X). The cover also includes a snap-action step that projects in a radially outwards direction from the cylindrical wall for locking the cover on a tubular appendage of the bearing a resilient ring that is arranged between an annular shoulder portion of the cover and the tubular appendage to exert a resilient recall action on the snap-action step.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: November 29, 2016
    Assignee: AKTIEBOLAGET SKF
    Inventors: Fausto Morello, Marcello Rossi
  • Patent number: 9227462
    Abstract: An outboard sealing system cooperates with components of a heavy-duty vehicle wheel end assembly to retain lubricant in the assembly. The sealing system includes a seal that is disposed axially between an outboard bearing and a hubcap of a wheel end assembly. The seal also extends radially between an axle spindle nut and a surface of a bore formed in the hub of the wheel end assembly. The seal forms a barrier between the outboard bearing and the hubcap to reduce a flow of lubricant from a hub cavity into the hubcap. The sealing system retains lubricant in the wheel end assembly, prevents contaminants from entering the wheel end assembly, and retains the relative position of the outboard bearing in the hub during servicing. The sealing system preferably includes an additional barrier that reduces corrosion at the interface of the hubcap and an outboard face of the hub.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 5, 2016
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Jay D. White, Dhawal Dharaiya
  • Patent number: 9121299
    Abstract: The present application provides an axially retractable seal system positioned within a seal slot of a stationary component and adjacent to a rotating component. The axially retractable seal system may include a seal with an upper flange positioned within the seal slot and one more bristles extending towards the rotating component and a spring positioned axially between the upper flange of seal and the seal slot such that the seal is forced into a retracted position.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 1, 2015
    Assignee: General Electric Company
    Inventor: Andrew Paul Giametta
  • Patent number: 9074688
    Abstract: In a rotary shaft seal configured such that first and second seal elements (1) and (2) each having a fundamental thickness (T) and each curved through a curved wall portions (5) of a corresponding one of the first and second seal elements (1) and (2) to have a generally J-shaped cross section are arranged so as to be curved in opposite directions along a shaft center (L), a wide circumferential groove (7) is formed in each of opposed surfaces (6) of the respective curved wall portions (5) of the first and second seal elements (1) and (2). Under use conditions (where the seal is inserted), extreme end portions (8) of the first and second seal elements (1) and (2) are in contact with an outer circumferential surface (9a) of a rotary shaft (9) with a peak contact pressure such that a contact width (E) is equal to or less than twice the fundamental thickness (T).
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: July 7, 2015
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Nobukazu Fujii, Hironori Oida
  • Patent number: 9062773
    Abstract: A radial shaft seal configured for receipt in a housing and about a shaft to sealingly isolate an air side of the seal from an oil side of the seal is provided. The seal includes a mounting portion and a seal lip having a sealing surface extending between an oil side end and a free air side end. An annular bridge is connected to the oil side end of the seal lip by a first hinge and to the mounting portion by a second hinge. The bridge extends in radially overlying relation to the seal lip. A projection extends from the first hinge away from the bridge. A plurality of ribs extend radially inwardly from the projection. The ribs minimize friction between the seal and the shaft during installation and prevent the seal lip from inverting during the oil-side installation assembly.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: June 23, 2015
    Assignee: Federal-Mogul Corporation
    Inventors: Brent R. Sedlar, David M. Toth
  • Publication number: 20150091256
    Abstract: A seal assembly for sealing a space between a shaft and a housing includes a seal having a central axis, an inner annular sealing lip sealingly engageable with the shaft and an outer annular rim with an outer circumferential surfaces engageable with the housing inner surface. At least one and preferably two support members are disposed within the annular rim and at least one and preferably a plurality of adjustment devices are coupled with the support members. Each adjustment device is configured to displace at least a portion of each support member radially outwardly with respect to the central axis, to displace at least a portion of the rim generally toward the housing inner surface, and/or to displace at least a portion of each support member radially inwardly toward the central axis to permit displacement of at least a portion of the rim generally away from the housing inner surface.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Inventors: Yefim Epshetsky, John Manuel Dominguez
  • Patent number: 8985589
    Abstract: A seal assembly for sealing a space between a shaft and a housing includes a seal having a central axis, an inner annular sealing lip sealingly engageable with the shaft and an outer annular rim with an outer circumferential surfaces engageable with the housing inner surface. At least one and preferably two support members are disposed within the annular rim and at least one and preferably a plurality of adjustment devices are coupled with the support members. Each adjustment device is configured to displace at least a portion of each support member radially outwardly with respect to the central axis, to displace at least a portion of the rim generally toward the housing inner surface, and/or to displace at least a portion of each support member radially inwardly toward the central axis to permit displacement of at least a portion of the rim generally away from the housing inner surface.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 24, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Yefim Epshetsky, John Manuel Dominguez
  • Publication number: 20150061232
    Abstract: A sealing arrangement is disclosed herein. The follower shaft extends within a housing to interface with the housing and senses rotational movement of a base shaft. The sealing arrangement includes a mount member and a seal member. The mount member includes a first end attached to the housing, a second end defining a seal-receiving portion, and an opening throughout. The follower shaft extends through the opening. The seal member has an outer perimeter portion that is adapted to engage with the seal receiving portion. The seal member has an inner resilient portion adapted to seal the perimeter of the follower shaft. The second end of the mount member is structured and arranged to resiliently deflect in correspondence with the resilient inner portion of the seal member. This limits the deflection of the resilient inner portion of the seal member in response to radial movement of the follower shaft.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Applicant: Caterpillar Inc.
    Inventor: Daniel J. Reed
  • Publication number: 20150050130
    Abstract: A sealing device between two axisymmetric coaxial parts, includes an elastic segment, two holding elements located on each side of the annular segment, an annular spacer arranged between the two holding elements, wherein the annular spacer has a notch around its peripheral rim; the annular elastic segment has a hooking element at each of its free ends, adapted to cooperate with the notch of the annular spacer, and to hold the elastic segment in a pre-holding position by elastic return force.
    Type: Application
    Filed: January 7, 2013
    Publication date: February 19, 2015
    Inventors: Serge René Morreale, Arnaud Jean-Marie Pierrot
  • 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
  • Patent number: 8956052
    Abstract: A sealed anti-friction bearing (1), including an annular sealing washer (11, 12) which seals a rolling-body chamber (7) in the axial direction, wherein the sealing washer (11, 12) has a fastening section (14) for connecting it fixedly to a bearing ring (2) of the anti-friction bearing (1) so as to rotate with it, and wherein the sealing washer (11, 12) is anchored with its fastening section (14) in a circumferential groove (22) of the bearing ring. According to the invention, it is provided that the fastening section (14) has a first clamping element in the form of a barb (19) and a second clamping element in the form of an annular bead (20), and that the barb (19) and the bead (20) enter into a non-positive connection with oppositely lying surfaces of the groove (22).
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: February 17, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Felix Hofbauer, Rainer Schroder, Martin Grehn
  • 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: 8919782
    Abstract: A dynamic lip seal is provided for sealing between a housing and a shaft and with a fluid medium to be sealed on an oil side and air on an air side of the seal. The seal includes a seal lip extending from a seal body and including a shaft contact portion adapted for engagement with the shaft and including a static band and a first set of spiral grooves disposed on an oil side of the static band, and a second set of spiral grooves on an air side of the static band. The first and second sets of spiral grooves are both configured to pump oil toward the static band when the shaft is rotated in a first direction, and the first and second sets of spiral grooves are both configured to pump oil away from the static band when the shaft is rotated in a second direction.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: December 30, 2014
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Alexander Berdichevsky
  • Patent number: 8918972
    Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: December 30, 2014
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Darin Battles, John A. London
  • Patent number: 8910948
    Abstract: A mounting guard ring for a sealing ring with at least one sealing lip, surrounding a sleeve-shaped protective ring with a supporting surface for the sealing lip disposed at the outer periphery and a holding device shaped as a grip, the protective ring being provided in at least one peripheral region with a first predetermined breaking site and being capable of being severed along the first predetermined breaking site by pulling on the holding device, the protective ring being closed off in sealing manner by a disk-shaped lid.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: December 16, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Martin Heldmann, Gunter Hintenlang, Uwe Henrich
  • Publication number: 20140353924
    Abstract: In described embodiments, a seal assembly is provided for sealing a space between a shaft and a housing. The shaft is rotatable about a central axis. The seal assembly includes an outer portion connectable with the housing and an inner portion releasably attached to the outer portion. The inner portion is replaceable with a replacement inner portion. A method for removing the inner portion from the outer portion is also provided.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventor: Yefim Epshetsky
  • Patent number: 8894289
    Abstract: A sealing device for an axle bearing includes a lubricant maintained on sliding contact surfaces, thereby suppressing elevation of torque due to the depletion of grease. A lubricant-adsorbing layer comprises a thickener and a binder. The lubricant comprises a base oil and a thickener. The thickener and the thickener are mutually attracted. A lubricant layer of a prescribed thickness is formed on the lubricant-adsorbing layer. This lubricant layer adheres closely to the lubricant-adsorbing layer making it difficult to separate the lubricant layer from the lubricant-adsorbing layer.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 25, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tasuku Sakurai, Morinobu Kawamura
  • Patent number: 8851480
    Abstract: A lip type seal has a cartridge fitted to an inner periphery of a shaft hole, a first lip seal member, a case, a resin second lip seal member, a backup ring and an adapter, a protrusion section in a partial portion on a circumference is provided in a first flange section of the case to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the case and coming off to an inner side in a radial direction, and a projecting section in a partial portion on a circumference is provided in a flange section of the backup ring to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the backup ring and coming off to the inner side in the radial direction.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 7, 2014
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Koichiro Oiyama, Hideyuki Murakami, Yusaku Nakazono
  • 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
  • Patent number: 8844935
    Abstract: A sealing arrangement for a bearing assembly. The sealing arrangement can include a static seal carrier coupled to a static component of the bearing assembly and including a first plurality of rings, a rotating seal carrier coupled to a rotating component of the bearing assembly and including a second plurality of rings, the first plurality of rings and the second plurality of rings disposed in an interdigitated arrangement so as to define a tortuous passageway therebetween, the tortuous passageway having one end in communication with a high pressure area of the bearing assembly and a second end in communication with a low pressure area of the bearing assembly, and a scraper seal coupled to the rotating seal carrier and disposed over the second end of the tortuous passageway.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: September 30, 2014
    Assignee: Gamesa Innovation & Technology, S.L.
    Inventor: Juan Redin
  • Patent number: 8814170
    Abstract: An annular seal member configured to seal a gap between a shaft hole and a shaft inserted into the shaft hole, the annular seal member comprises: an annular base part; an annular lip, which includes a lip edge that is configured to be contact with one of a hole face of a shaft hole and an outer periphery of a shaft, the one of which is a seal mating face; a first convex part, a second convex part and a passage recess, which is provided at a face of the base part facing the seal mating face; a concave part, which is formed at a position between the second convex part and the base end portion of the annular lip, and which has a circumferential size larger than a recess width of the passage recess.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 26, 2014
    Assignees: Advics Co., Ltd., Denso Corporation
    Inventors: Kei Okamura, Junichi Fukuda, Yoshitake Hisada
  • Patent number: 8764020
    Abstract: A shaft seal device is provided in which movement of the seal lip is prevented and the sealing function can be reliably maintained by shaping the adapter so that the adapter is more readily pressed into and less liable to be dislodged from the cartridge, and by increasing the width in the radial direction. An external peripheral-side flange of the adapter fitted into the cartridge on the sealing fluid side of the first lip seal member is formed in a small-diameter tapered shape toward the web side, and the web is composed of an external-periphery-side portion having an orthogonal planar shape that is orthogonal to the center of the shaft, and a tapered internal-periphery-side portion that slopes to the sealing fluid side.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 1, 2014
    Assignee: Eagle Industry Co., Ltd.
    Inventor: Yasuhisa Arita
  • Patent number: 8756784
    Abstract: A seal protector assembly is provided. The seal protector assembly includes a cavity for encasing a seal. A plug or cap is removably attached to the protector seal. After shipment of the transmission, the plug or cap is removed. Once any potential damage to the seal during assembly has passed, the protector is then removed.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: June 24, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventors: Caleb G. Harmon, Edward J. Billings, Kelly Pietras
  • Patent number: 8714561
    Abstract: To improve durability of a seal lip (4) of an oil seal (1) in slidably contact with the peripheral surface of a shaft (23), a lubricating oil supply section (11) for collecting adhered oil and dropping it on the shaft (23) is provided at a forward end portion of an installation section (2), the lubricating oil supply section (11) has projections (12) formed on the inner peripheral surface of the installation section (2) to collect oil on the surface thereof, the surface of each projection (12) has a recess (13) for temporarily accumulating oil, guidance projections, or a slope for collecting the oil, and dams are formed on a forward end face (2a) of the installation section (2) to block the oil flowing down along the circumferential direction on the forward end face (2a) and guides the oil toward each projection (12).
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: May 6, 2014
    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: 8714563
    Abstract: An annular elastic gasket adapted to be disposed between an insertion hole formed in a housing and a cylindrical body which is inserted into the housing via the insertion hole in such a manner that the annular elastic gasket elastically contacts an inner surface of the insertion hole and an outer circumferential surface of the cylindrical body. The annular elastic gasket comprises a hollow cylindrical gasket base body comprised of a molded body made of an elastic material, to be compressedly fitted and retained in the insertion hole, an annular seal lip portion extending in the centripetal direction from the gasket base body and an elastic extending portion which constitutes an extending base portion at an end of a tip side portion of the annular seal lip portion, being bent in such a manner that the end directs in the centripetal direction.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 6, 2014
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Keita Yamamoto, Kazuhiro Takahashi, Kenji Matsumoto
  • 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: 8672007
    Abstract: A sealing arrangement includes a stationary first machine part configured as an axle stub including at least one axial inflow hole adjoining with at least one opening that faces towards an outside surface of the axle stub in a radial direction of the axle stub. A second machine part configured as a container includes a hub rotatably surrounding the axle stub. The hub includes at least one opening that corresponds to the at least one opening of the axle stub in the radial direction so as to form one or more pairs of adjacent openings along an axial direction. A radial seal is disposed between each pair of adjacent openings.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 18, 2014
    Assignee: Carl Freudenberg KG
    Inventors: Ulrich Dahlhaus-Preussler, Massimo Barban
  • Patent number: 8668204
    Abstract: The invention relates to a seal (160) for sealing two opposite contact surfaces along a closed contour, comprising an elastic sealing element (210), which has two opposite sealing surfaces (240) to bear against the contact surfaces in the region of the contour, two spring elements (220, 230), each of which is associated with one of the sealing surfaces, and a supporting element (250) arranged between the spring elements, wherein each spring element comprises two limbs (260, 270), one limb pressing the sealing surface associated with the spring element against one of the contact surfaces and the other limb being supported on the supporting element.
    Type: Grant
    Filed: July 5, 2010
    Date of Patent: March 11, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Georg Reeb, Claudius Muschelknautz
  • Publication number: 20140062031
    Abstract: A rotary seal arrangement has a rotatable component (2) supported within a machine component (3), the machine component (3) forming a housing structure for a sealing means (23) which acts to seal off a high-pressure area (10) between the components (2,3) to allow the passage of high pressure fluid therebetween. The seal arrangement includes a holding element (30) for mounting in the machine component (3) to support spaced sealing members (23) therein to define said high pressure area (10) therebetween. The arrangement is particularly suitable for use where the rotatable component (2) is formed as a rotatable shaft and the holding element (30) and sealing members (23) are arranged around the shaft such as, for example, in a vehicle tyre pressure changing system for use on an agricultural tractor.
    Type: Application
    Filed: November 28, 2011
    Publication date: March 6, 2014
    Applicant: AGCO International GmbH
    Inventors: Robert Honzek, Thomas Muller, Thomas Schmidl, Martin Stoiber
  • Publication number: 20140042708
    Abstract: A shaft seal device is provided in which movement of the seal lip is prevented and the sealing function can be reliably maintained by shaping the adapter so that the adapter is more readily pressed into and less liable to be dislodged from the cartridge, and by increasing the width in the radial direction. An external peripheral-side flange of the adapter fitted into the cartridge on the sealing fluid side of the first lip seal member is formed in a small-diameter tapered shape toward the web side, and the web is composed of an external-periphery-side portion having an orthogonal planar shape that is orthogonal to the center of the shaft, and a tapered internal-periphery-side portion that slopes to the sealing fluid side.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: EAGLE INDUSTRY CO., LTD.
    Inventor: YASUHISA ARITA
  • Patent number: 8628250
    Abstract: A support device of a propeller shaft comprises an annular bracket fixed to a floor member of a vehicle body; an annular elastic member disposed in the annular bracket; an annular supporting structure disposed in the annular elastic member and rotatably supporting a cylindrical given portion of the propeller shaft through a ball bearing unit; and an annular seal member intimately disposed in an annular space defined between the annular supporting structure and the cylindrical given portion of the propeller shaft. One of outer and inner cylindrical surfaces of the annular seal member is in slidable contact with either one of an inner cylindrical surface of the annular supporting structure and an outer cylindrical surface of the cylindrical given portion of the propeller shaft.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: January 14, 2014
    Assignee: Hitchi, Ltd.
    Inventors: Masanori Oinuma, Hidekazu Aoki, Takahiro Kuroha, Takayuki Yokota, Hiromichi Komai, Yoshimichi Takano
  • 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: 8590903
    Abstract: A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a mounting portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the mounting portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The mounting portion defines a bumper spaced from the axially extending barrel portion by a gap distance that is designed to prevent the seal lip from inverting under sustained high pressure or pressure spikes.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: November 26, 2013
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Alexander Berdichevsky, Rory S. Pawl, Patrick Scheib
  • Patent number: 8579297
    Abstract: A shaft seal device is provided in which movement of the seal lip is prevented and the sealing function can be reliably maintained by shaping the adapter so that the adapter is more readily pressed into and less liable to be dislodged from the cartridge, and by increasing the width in the radial direction. An external peripheral-side flange of the adapter fitted into the cartridge on the sealing fluid side of the first lip seal member is formed in a small-diameter tapered shape toward the web side, and the web is composed of an external-periphery-side portion having an orthogonal planar shape that is orthogonal to the center of the shaft, and a tapered internal-periphery-side portion that slopes to the sealing fluid side.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: November 12, 2013
    Assignee: Eagle Industry Co., Ltd.
    Inventor: Yasuhisa Arita
  • 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