Flexible Projection (e.g., Lip Seal, Etc.) Patents (Class 277/402)
  • Patent number: 10801550
    Abstract: An encoder system mounted on a large diameter bearing, the large diameter bearing having an inner ring and an outer ring, the encoder system providing a tensioning assembly mounted in a pre-machined portion of the inner ring, the tensioning assembly including a first tensioning part having a first machined recess and a first groove, and a second tensioning part having a second groove, the second tensioning part conforming in size and shape to the first recess and disposed within the first machined recess. The tensioning assembly is centered and fixed on to the inner ring. An encoder assembly mounted on the outer ring, the encoder assembly including a first encoder part fixed to the outer ring, and a second encoder part fixed to the first encoder part and aligned in front of the encoder band. A method of assembling an encoder system to a large diameter bearing is also provided.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: October 13, 2020
    Assignee: Aktiebolaget SKF
    Inventor: Vincent Bredoire
  • Patent number: 10788129
    Abstract: A sealing device that is applicable to high-speed rotation applications and has an increased pressure resistance is provided. The sealing device includes: a first side discharge valve located on a first side, on which a fluid is to be sealed, of an outer circumferential sealing surface, the first side discharge valve extending radially outward toward the first side for allowing a gas in a space between an inner circumferential surface of a housing and an outer circumferential sealing surface to be discharged toward the first side while blocking a gas from entering the space from the first side; and a second side discharge valve located on an atmosphere side that is opposite to the first side with respect to the outer circumferential sealing surface, the second side discharge valve extending radially outward toward the atmosphere side for allowing the gas in the space to be discharged toward the atmosphere side while blocking a gas from entering the space from the atmosphere side.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 29, 2020
    Assignee: NOK CORPORATION
    Inventor: Kazunori Jinbo
  • Patent number: 10731708
    Abstract: A bearing includes a first ring, a second ring and a plurality of rolling elements between the first and second rings. The first ring is a split ring formed of a first ring part and a second ring part that meet at a joint region, and each of the ring parts includes a recess that extends axially into the respective ring part from the joint region. A cylindrical seal is disposed in the recess of the first ring part and extends across the joint into the recess of the second ring part.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 4, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Jesko-Henning Tanke, Christian Kogler, Holger Kristandt
  • Patent number: 10663031
    Abstract: To provide a sealing structure with an annular pocket and a sealing apparatus that can efficiently reduce exposure of a seal lip of the sealing apparatus to foreign matter entering from the outside. In a sealing structure (1) with a torsional damper and an oil seal, a hub pocket (30) has an outer circumferential surface (31) in an annular shape centered about an axis x that extends along the axis x and is formed in an outer shell part (33) that is opposed to a shaft member on an outer periphery side, a dust discharging hole (36s) or a dust discharging groove (36sa) connected to the hub pocket (30) is formed in the outer shell part (33), and the dust discharging hole (36s) or the dust discharging groove (36sa) is inclined at a predetermined angle in such a manner that a discharge opening (36sout) is directed in an opposite direction to a rotational direction of the shaft member.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 26, 2020
    Assignee: NOK CORPORATION
    Inventors: Akihiro Komyo, Yusuke Kamiya, Shinya Omoto, Toru Nakashima, Shota Toma
  • Patent number: 10570965
    Abstract: A universal joint bearing with at least a first and a second elastomeric ring. The universal joint bearing is free from spiral springs, which exert a force on a portion of one of the elastomeric rings. The portion is provided for abutting against a trunnion of a crosspiece of a universal joint in a condition in which the universal joint bearing is part of the universal joint.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: February 25, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Suhel Ahamad Khan, Helmut Hauck, Hubert Herbst
  • Patent number: 10520036
    Abstract: A sealing device for sealing an annular space constituted by an inside member and an outside member which rotate relatively to each other includes a core metal having a cylindrical portion fitted to one of the inside member and the outside member, and a seal lip member fixed to the core metal and having a plurality of lip portions contacting the other of the inside member and the outside member. The lip portions includes a first lip portion provided at a position closest to the outside and blocking ventilation between the outside and a space existing between the lip portions, and another lip portion provided at a position farther from the outside than the first lip portion. The other lip portion is provided with a through-hole, which is open to front and rear surfaces and allow ventilation, at a position apart from a contact portion with the other member.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 31, 2019
    Assignee: UCHIYAMA MANUFACTURING CORP.
    Inventors: Koki Ishida, Wakana Kato
  • Patent number: 10150419
    Abstract: A retractable running board assembly according to an exemplary aspect of the present disclosure includes, among other things, a running board and a linkage connected to the running board. The linkage includes a hinge provided by a pin rotatable relative to a bushing, which is provided in a recess in the linkage. Further, a seal is provided in the recess between the bushing and an opening of the recess.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 11, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Leszek Derbis, Joel Thomas Pierce
  • Patent number: 10059268
    Abstract: A drive system for an automatic step including an actuator for moving an automatic step, a crank arm pivotally coupled to the actuator and pivotable about a central shaft, and a first link pivotally coupled to the crank arm, the first link having first and second ends. The linkage comprises one or more force mitigation mechanisms capable of reducing forces eccentric to the actuator. A first force mitigation mechanism engages when the step is deployed or nearly deployed by aligning the central shaft with the first and second ends of the first link along a first axis to generally place eccentric forces originating from the step against the central shaft of the crank arm instead of directly engaging the actuator.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: August 28, 2018
    Assignee: CURT MANUFACTURING, LLC
    Inventors: Mark David Hayes, Justin Sampson, Dave Luman
  • Patent number: 9856916
    Abstract: A seal having a substantially H-shaped sealing profile.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: January 2, 2018
    Assignee: CARL FREUDENBERG KG
    Inventors: Roland Fietz, Andreas Palmer
  • Patent number: 9746081
    Abstract: A seal is provided for insertion in a bore in an outer member and engaging an inner member received in the bore. The seal includes an outer annular insert having a first diameter and an inner annular insert having a second diameter smaller than the first diameter. An elastomeric body includes an outer portion over-molded on the outer annular insert and an inner seal over-molded on the inner annular insert and including an intermediate web extending between the outer portion and the inner portion. The web extends both axially and radially relative to a center axis of the outer annular insert. The inner seal includes an inboard sealing surface and the outer portion including an outboard sealing surface.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: August 29, 2017
    Assignee: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventor: John B. Wagner
  • Patent number: 9568043
    Abstract: A linking device has a bearing and is suitable for use with a weapons system. The device provides adjustable rotational resisting torque of two coaxial cylindrical parts which are rotatable relative to one another about a shared axis. The bearing includes two rings made of a resiliently deformable material and is capable of respectively engaging with the two cylindrical portions, and between which rolling elements are arranged such as to be in contact with raceways of said rings. The device further includes a controllable member for adjusting the tightening of the rings, wherein the controllable member is capable of engaging one of said parts in order to engage with said bearing.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: February 14, 2017
    Assignee: MBDA FRANCE
    Inventors: Antoine Rosso, Hugo Rousseau, François Reisch
  • Patent number: 9556911
    Abstract: A rolling bearing assembly including a radially inner ring defining an inner race, a radially outer ring defining an outer race, and rolling elements supported between the inner ring and the outer ring is provided. At least one filter seal is arranged between the radially inner ring and the radially outer ring. The at least one filter seal includes a first washer having a first plurality of openings, a second washer having a second plurality of openings, and a filter washer arranged axially between the first and second washers, and the first washer, second washer, and filter washer are laminated together.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: January 31, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: William Moratz
  • Patent number: 9458920
    Abstract: A dust cap for sealing engagement with an opening of a member is disclosed. The dust cap is removable from the opening of the member by a tool. The dust cap includes a body and an elastomeric portion. The body defines an outer perimeter, an inner surface, an outer surface, and a recess disposed along the outer surface. The recess is shaped to receive a portion of the tool. The elastomeric portion is located around the outer perimeter of the body. The elastomeric portion is sealingly engageable with the opening of the body member.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: October 4, 2016
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventor: Anthony Eugene Lannutti
  • Patent number: 9421590
    Abstract: The invention relates to a sealing device for installation in a roll arrangement between the roll journals of a roll and chock. The sealing device has an annular main body having sealing rims that extend radially outwards. Furthermore, the sealing device has an annular reinforcement element having a strip-like section which coaxially surrounds the main body on the outer side thereof. In order to ensure the dimensional stability and thus also the function of the sealing device even after the installation thereof in the roll arrangement, that is to say after said sealing device has been pushed onto the frustroconical roll journals, the reinforcement element according to the invention has, in addition to the coaxial strip-like section, at least one flange which is connected thereto and is connected to the sealing rim. Furthermore, the invention relates to said roll arrangement.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 23, 2016
    Assignee: SMS GROUP GMBH
    Inventors: Karl Keller, Konrad Roeingh, Daniel Knie
  • Patent number: 9227720
    Abstract: An edge flap arrangement is provided for an aircraft wing and includes a main flap element and an actuator for moving the main flap element relative to the wing. A linkage arrangement supports the main flap element from the aircraft wing for movement relative to the wing, and includes including a drop hinge link arrangement having a fixed strut secured to the aircraft wing and a drop link secured to the main flap element. The fixed strut and drop link are pivotally connected by a hinge point having a bearing installed therein. The bearing includes an outer race, an inner race and an annular seal assembly snap-fit into the outer race. The annular seal assembly includes first and second annular retaining rings and a resilient ring disposed between the first and second annular retaining rings.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: January 5, 2016
    Assignee: Roller Bearing Company of America, Inc.
    Inventor: Alex Habibvand
  • Patent number: 9228657
    Abstract: A sealing element (1) comprising, in cross-section, a body (7a) and a first sealing part (8a).The first sealing part (8a) providing a sealing face (12a), the first sealing part being connected to and angularly and resiliently displaceable relative to a first surface of the body (7a).
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: January 5, 2016
    Assignee: CONTROL TECHNIQUES LIMITED
    Inventor: Charles Anthony Cachia
  • Patent number: 8998499
    Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between the outer and inner rings. The seal 7 has, in cross section, the overall shape of an H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of the H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
  • Publication number: 20150001810
    Abstract: The invention relates to a seal system comprising a stationary assembly having an angled profile, and a rotary assembly comprising a resiliently flexible rotary elastomeric member. When in a rest position, the rotary elastomeric member contacts the angled profile of the stationary assembly to seal a gap therebetween. On rotation of the rotary elastomeric member, the gap between the assemblies is opened to allow fluid flow therethrough.
    Type: Application
    Filed: June 25, 2014
    Publication date: January 1, 2015
    Inventor: Thomas Broadbent
  • Publication number: 20150001035
    Abstract: A shift rail rod seal for a transmission shift apparatus. The rod seal includes a case that is over-molded with a seal body that includes a seal lip for engaging a shift rail and a chamfered lip that engages the seal bore chamfered bore entrance when the rod seal is correctly assembled into the seal housing bore. A transmission shift apparatus that is adapted to receive the shift rod seal includes a manifold housing and a clutch housing that together form a sealed cavity. A shift rail and piston are received in the sealed cavity that is pressurized to actuate the shift apparatus.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Timothy Smith, Graeme Jackson, Charles Ganske
  • Publication number: 20140377108
    Abstract: A piston head for a syringe pump comprises a barrier portion (11) for driving fluid through a syringe pump barrel (30), wherein a peripheral section (13,14) of the barrier portion (11) is shaped to seal against the syringe pump barrel (30); and a re-silent member (15) arranged to resist deformation of the shaped peripheral section (13,14) of the barrier portion (11).
    Type: Application
    Filed: September 11, 2012
    Publication date: December 25, 2014
    Applicant: OXFORD NANOPORE TECHNOLOGIES LIMITED
    Inventors: Anthony Jones, Jonathan Upsdell
  • Patent number: 8876394
    Abstract: In a rolling bearing with seal, an annular lip supporting portion having a larger thickness than that of a seal lip is formed on an inner periphery side of a seal member; the seal lip protruding on an inner peripheral surface of the lip supporting portion has: a cylindrical seal surface being in close contact with an outer peripheral surface of an inner race; and an inner side surface at least part of which in a region from an inner end of the seal surface to reach the lip supporting portion stands upright from the inner end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race; and a width of the seal surface in an axial direction is set to be larger than a height of the seal lip in a radial direction.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 4, 2014
    Assignee: Keihin Corporation
    Inventors: Tomoaki Ohba, Takuya Usami
  • Publication number: 20140265144
    Abstract: A seal apparatus includes: (a) first and second machine elements defining a sealing interface between two zones subject to different fluid pressures, a boundary of which lies between the two elements; (b) a seal comprising rigid material carried by the first machine element and having an annular lip defining a first contact surface; (c) a second contact surface comprising rigid material, defined by the second machine element; (c) wherein both contact surfaces are wear resistant, and the first and second contact surfaces bear directly against each other, so as to seal against fluid leakage between the first and second zones, while allowing relative sliding motion between the first and second contact surfaces; and (d) wherein the seal is configured to allow the lip to deform elastically and permit the first contact surface to conform in a regular or irregular shape to the second contact surface.
    Type: Application
    Filed: August 16, 2013
    Publication date: September 18, 2014
    Applicant: LITTLE ENGINE, LLC
    Inventors: Franz W. Kellar, Harold Lloyd Crowder, Jr., Scott M. Duquette
  • Patent number: 8827381
    Abstract: A sealing assembly for a track hinge comprises a sealing ring having an annular sealing edge that sealingly abuts on a radially-extending surface of a bushing of the track hinge. An elastic ring fixedly abuts on an outer track link of the track hinge and biases the sealing ring in axial and radial directions. A support ring is disposed radially inward of the sealing ring and is connected at least substantially to a radially-inner surface of the sealing ring. The support ring at least substantially prevents the sealing ring from directly contacting a radially-inner portion of the track hinge at least in the radial direction.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: September 9, 2014
    Assignee: Aktiebolaget SKF
    Inventor: Wolfgang Dolata
  • Publication number: 20140167363
    Abstract: A seal for a rolling screw capable of preventing an unintended contact with the threaded shaft, while maintaining advantages of a lip tilting perpendicularly to the axial direction, and the rolling screw using the seal are provided. In the seal for the rolling screw including: a circular ring part (16) secured to a nut of the rolling screw; and a lip part (17) in sliding contact with a threaded shaft (1a) of the rolling screw, the lip part (17) extends inward in the radial direction from the circular ring part (16) at a tilt angle with respect to a surface perpendicular to an axial direction of the threaded shaft, and bends in a direction to make the tilt angle smaller at a partway of the lip part.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 19, 2014
    Applicant: NSK Ltd.
    Inventor: Keitaro Oka
  • Publication number: 20130313786
    Abstract: In seal rings for the sealing of shafts for propeller shafts, impeller shafts, rudder shafts of ships, an arrangement is provided, wherein a clamp-in element in allocated housing-fixed support rings as an installation space is provided with an adjoining intermediate part as a membrane and an angled element facing toward the shaft with formation of a seal lip for contact on the shaft. Thereby the contact region of the seal lip on the shaft is formed by a circle-shaped seal region with a constant radius over the entire adjustment range. Alternatively, the contact region of the seal lip on the shaft is formed by a circle-shaped seal region, whereby in the unloaded condition the seal region in the region facing toward the medium to be sealed comprises a smaller radius relative to a radius in the rearward region of the seal lip.
    Type: Application
    Filed: April 13, 2012
    Publication date: November 28, 2013
    Applicant: Blohm + Voss Industries GmbH
    Inventors: Carlos Fangauf, Marko Wrage
  • Patent number: 8511224
    Abstract: An insertion hole (83a) is provided in a packing (83) and a rotating shaft (81a) is inserted into the insertion hole (83a). A sliding portion (83b) forming an air clearance (83c) is provided on the outside of the packing (83). The rotating shaft (81a) is inserted into the insertion hole (83a) with a grease G applied to the circumferential surface thereof. When the rotating shaft (81a) is inserted, the grease G is shaved off by the sliding portion (83b) and a sufficient amount of the grease G is stored in the air clearance (83c). Consequently, frictional sound and heat are and thus reduced between the rotating shaft (81a) and the packing (83), the sliding portion (83b) can come into tight contact with the rotating shaft (81a), thereby enhancing airtightness.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: August 20, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazushi Furukawa, Takao Murai, Kazuyuki Matsubayashi
  • Patent number: 8460141
    Abstract: A chain has links formed by pairs of internal and external plates respectively connected by pins and inserts fitted onto the pins and projecting through the internal plates. Rollers are fitted onto the inserts between the internal plates and a lubricated interface is identified between each roller and the respective insert. The roller is provided, at each end, with a bevel or cavity tilted inwards the roller to identify a seat between the internal plate and the external surface of the respective insert, into the seat the sealing gasket being accommodated. A further sealing gasket is advantageously arranged between the plates to seal an interface between the pin and insert.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: June 11, 2013
    Assignee: Regina Catene Calibrate S.p.A.
    Inventors: Carlo Garbagnati, Massimiliano Fumagalli
  • Patent number: 8459654
    Abstract: A hydrodynamic shaft seal assembly includes a PTFE seal member having outer and inner sections. The outer section is affixed to an annular carrier. The inner section is free and includes at least one hydrodynamic groove in direct running contact with a rotating shaft or wear sleeve. A mid-portion of the seal member is formed between the inner and outer sections. The mid-portion is thinned and includes one or more annular undulations formed therein to improve flexibility of the inner section relative to the outer section. The seal assembly may include one or more excluder features. A rubber casing is molded about portions of the carrier. Preferably, one or more annular undulations are formed in a coining operation during the rubber molding process.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: June 11, 2013
    Assignee: Federal-Mogul Corporation
    Inventors: Frederick R. Hatch, David M. Toth
  • Publication number: 20130119613
    Abstract: A leaf seal is provided for effecting a seal between two coaxial, relatively rotating components. The leaf seal has an annular pack of leaves which are stacked face-to-face within the pack, and which are mountable to one of the components at respective root portions of the leaves such that the leaves extend towards the other component and respective edges of the leaves are presented for wiping contact with the other component. The pack includes a plurality of spacers, each spacer separating the root portions of neighbouring leaves to form therebetween interleaf gaps which allow an axial leakage flow through the pack. The spacers are distributed around the pack such that the leaves are divided into blocks of two or more leaves sandwiched at their root portions between nearest-neighbour spacers.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 16, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130119612
    Abstract: A leaf seal is provided for effecting a seal between two coaxial, relatively rotating components. The leaf seal has a pair of annular packs of stacked leaves. Each pack is mountable to one of the components with its leaves extending towards the other component such that the leaf edges of at least one of the packs are presented for wiping contact with the other component. The packs are axially spaced from each other by a controlled axial clearance. Within each pack the leaves are stacked face-to-face such that neighbouring leaves are separated from each other by interleaf gaps which allow an axial leakage flow through the seal. Further, within each pack the packs are positioned such that, when viewed in the axial direction, the leaves of each pack of the pair substantially obscure the interleaf gaps of the other pack of the pair. The controlled axial clearance is the dominant flow restriction in the seal determining the amount of leakage flow through the seal.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 16, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: Rolls-Royce PLC
  • Patent number: 8348603
    Abstract: A gas turbine inner flow path cover piece for a gas turbine a first turbine wheel and a second turbine wheel is provided is provided. The gas turbine inner flow path cover piece can include a main body having an first surface and a second surface, side pieces disposed on the first surface of the main body and mating pairs disposed on the second surface of the main body.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: January 8, 2013
    Assignee: General Electric Company
    Inventors: Andres Jose Garcia-Crespo, Bradley Taylor Boyer, John Wesley Harris, Jr., Brian Denver Potter, Ian David Wilson
  • Publication number: 20120306156
    Abstract: The present invention is an apparatus for sealing in a compressor having a compressor housing and a rotatable shaft extending through the compressor housing, with a pressure seal having a first sealing member and a first sealing lip abutting and adjacent to, respectively, said housing and rotatable shaft, and a seal guide attached to the compressor housing and extending radially inward toward the rotatable shaft for maintaining alignment of the pressure seal.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Applicant: ALMA PRODUCTS COMPANY
    Inventors: Clifton R. Fockler, Jeffery L. Watson
  • Patent number: 8114024
    Abstract: An encapsulated rotary seal around a rotating shaft, the seal having an outer annular body and an inner annular body. The inner annular body engages the rotating shaft and permits free rotation of the shaft while providing a liquid tight seal around the rotating shaft. The outer annular body is molded about and permanently adhered to the inner annular body, the outer annular body permitting limited non-concentric or eccentric movement of the rotating shaft engaged to the inner annular body without affecting the integrity of the seal between the rotating shaft and the inner annular body.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: February 14, 2012
    Inventors: Roman Solek, Donald Coulthart
  • Publication number: 20110185890
    Abstract: Disclosed is a sealing member for a master cylinder and the master cylinder having the same, capable of shortening the delay in the release operation of the hill start assist control system. The sealing member includes an outer blade making contact with the cylinder body and an inner blade making contact with the outer surface of the piston. The inner blade includes a circumferential fluid path extending in a circumferential direction of the inner blade and a plurality of axial fluid paths connected to the circumferential fluid path.
    Type: Application
    Filed: November 19, 2010
    Publication date: August 4, 2011
    Inventor: Dong Gu KANG
  • Publication number: 20100237565
    Abstract: Seal assemblies and methods for forming them are described. Aspects of the seal assemblies include a seal ring made of a relative soft material supported by a specially configured backing ring made of a much higher modulus material, such as ferrous and non-ferrous metal or engineered plastic. The seal assemblies may optionally include a retaining ring to prevent slippage relative to the environment or housing in which they are placed and to prevent shuttling. The seal assemblies may also optionally include an energizer to alter the force generating by a sealing lip on the seal ring. The seal assemblies preferably include a rigid hoop ring to minimize shrinkage due to thermal cycling.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Inventor: Mike Foster
  • Publication number: 20100232734
    Abstract: A bearing sealing device is provided between inner and outer members of a wheel support bearing assembly and includes an annular sealing plate of an L shaped section and an elastic sealing member having an elastic body secured to a core metal of a reverse L-shaped section. The sealing plate includes a cylindrical wall, mounted on an outer periphery of the inner member, and a radial wall extending upwardly from one end thereof. The core metal includes a cylindrical wall, mounted on an inner periphery of the outer member, and a radial upright wall extending radially inwardly from one end thereof. The elastic body includes two side sealing lips, arranged radially of the core metal and having their tips held in contact with the radial upright wall. The distance between those side sealing lips is chosen to be equal to or greater than 0.1 mm.
    Type: Application
    Filed: November 4, 2008
    Publication date: September 16, 2010
    Inventors: Akira Torii, Kazuo Komori
  • Patent number: 7780340
    Abstract: A cheese process vat is disclosed. The cheese process vat includes an enclosure and a shaft assembly, preferably a shaft assembly having a shaft and a plurality of agitator panels arranged on the shaft. The cheese process vat preferably further includes a shaft seal assembly having a fluid accessible clean-in-place chamber. Methods of using the respective cheese process vats are also disclosed.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: August 24, 2010
    Assignee: Advanced Process Technologies, Inc.
    Inventors: Paul R. Bokelmann, Craig J. Campbell, Gary L. Starkson
  • Publication number: 20100201075
    Abstract: An isolator sealing device includes a stator, which locates into a housing of a piece of rotating equipment, and a rotor which radially locates onto a rotary shaft of the piece of rotating equipment. The rotor and stator have one or more adjacent surfaces facing a labyrinth seal and a lip seal which sealingly engages the stator or the rotor when the equipment is idle and sealingly disengages the stator or the rotor when the equipment is operational.
    Type: Application
    Filed: September 24, 2008
    Publication date: August 12, 2010
    Inventors: Alan James Roddis, Andrew Colverson
  • Publication number: 20100066030
    Abstract: To provide a sealing device having a side lip in slidably contact with a mate member like a slinger, wherein a contact state of the side lip is stabilized and sliding resistance of the side lip is reduced when lip tightening margin becomes maximum, a contact surface (6c) of a contact part (6a) of the side lip (6) has a cross-section of a straight shape in a free state, a noncontact part (6b) of the side lip (6) has a grease holding portion (11) for holding grease supplied to the contact part (6a), the grease holding portion (11) is arranged at a position becoming the boundary between the contact part (6a) and the noncontact part (6b) when the width (W1) of the contact part (6a) and lip tightening margin become maximum, and the grease holding portion (11) consists of an annular groove (12) or radial grooves.
    Type: Application
    Filed: December 12, 2007
    Publication date: March 18, 2010
    Applicant: NOK CORPORATION
    Inventor: Naoto Kobayashi
  • Patent number: 7549647
    Abstract: The invention relates to a sealing device for roller bearings, comprising a journal seal (4), which is arranged upstream on the roller-ball side of the annular seal (8) which is connected in a rigid manner to an annular projection (7) of the bearing housing (5). The sealing lip (18) of the sealing device is applied to the front side (10) of the roller (1) by means of a sealing contact. The aim of the invention is to improve the sealing device in such a manner that the sealing lip of the annular seal is barely impinged upon by cooling means mixed by impurities, making it long lasting and ensuring that no undesired water can penetrate into said outlet.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: June 23, 2009
    Assignee: SMS Demag AG
    Inventors: Konrad Roeingh, Karl Keller, Rolf Hücker
  • Publication number: 20090146379
    Abstract: Seal assemblies and methods for forming them are described. Aspects of the seal assemblies include a seal ring made of a relative soft material supported by a specially configured backing ring made of a much higher modulus material, such as ferrous and non-ferrous metal or engineered plastic. The seal assemblies may optionally include a retaining ring to prevent slippage relative to the environment or housing in which they are placed and to prevent shuttling. The seal assemblies may also optionally include an energizer to alter the force generating by a sealing lip on the seal ring.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Inventors: Mike Foster, Majid Ghasiri
  • Patent number: 7516612
    Abstract: The present invention provides a seal apparatus for a transmission pump. The seal apparatus includes a ring seal configured to seal a gap defined between a transmission pump body and a hub in order to reduce hydraulic fluid leakage. An O-ring is placed around the ring seal such that the O-ring engages the transmission pump body in an axial direction. A retainer ring is disposed around the hub, and a torque converter seal is disposed radially between the transmission pump body and the hub. The torque converter seal applies an axial force which is transferred through the retainer ring in order to compresses the O-ring against the transmission pump body to seal in parallel with the ring seal such that the rate of hydraulic fluid leaking from the transmission pump is reduced. A corresponding method for sealing a transmission pump is also provided.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: April 14, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Norman Schoenek
  • Patent number: 7497630
    Abstract: A sealed rolling bearing has sealing devices with both the functions of high sealing ability and small sliding resistance, which are antipodal to each other. The sealed rolling bearing has an outer member (1, 30) formed with an outer raceway surface (8, 29) on its inner circumferential surface. An inner member (4, 5, 32) is formed with an inner raceway surface (9a, 9b, 31) on its outer circumferential surface. The inner raceway surface (9a, 9b, 31) is arranged opposite to the outer raceway surface (8, 29). Rolling elements (10, 34) are freely rollably contained between the outer and inner raceway surfaces. Sealing devices (12, 13, 35) are arranged in an annular space formed between the outer and inner members (1, 30 and 4, 5, 32). Each of the sealing devices (12, 13; 35) has elastic sealing lips (27a˜27c, 23˜25, 37a, 37b).
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: March 3, 2009
    Assignee: NTN Corporation
    Inventors: Makoto Muramatsu, Daisuke Kunimatsu
  • Publication number: 20090051121
    Abstract: An encapsulated rotary seal around a rotating shaft, the seal having an outer annular body and an inner annular body. The inner annular body engages the rotating shaft and permits free rotation of the shaft while providing a liquid tight seal around the rotating shaft. The outer annular body is moulded about and permanently adhered to the inner annular body, the outer annular body permitting limited non-concentric or eccentric movement of the rotating shaft engaged to the inner annular body without affecting the integrity of the seal between the rotating shaft and the inner annular body.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 26, 2009
    Applicant: Interson Corporation
    Inventors: Roman Solek, Donald Coulthart
  • Publication number: 20090014962
    Abstract: A seal for static and dynamic sealing of a space between two surfaces. The seal includes a radial inner end defining a radial inner surface, a radial outer end defining a radial outer surface, a first axial end face, and a second axial end face, the radial inner end having a width narrower than the width of the radial outer end. The seal may have an annular recess extending around the circumference of the seal. When the radial inner surface is disposed about first surface, the seal is rollable about an edge of the radial inner end such that one of the first axial end face and the second axial end face is disposed against the first surface, and the opposite axial end face is oriented toward and compressible against the second surface.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 15, 2009
    Inventors: Lyman Scott Ducworth, Christopher Couchell
  • Publication number: 20090014963
    Abstract: The present invention provides a sealing ring having at least eight sealing edges. Sealing rings, such as O-ring seals, are generally known. These universal sealing rings can be used for statically or dynamically sealing machine elements. They have the advantage of being suited for a wide variety of possible applications, and of being simple and cost-effective to manufacture.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 15, 2009
    Applicant: Carl Freudenberg KG
    Inventor: Roland Fietz
  • Publication number: 20080310782
    Abstract: The invention relates to a radial bearing having a cassette seal, and to the cassette seal itself, in which the radial bearing has an inner ring, an outer ring, and rolling bodies which are arranged between them, and in which the cassette seal is arranged in a press fit axially next to the rolling bodies between the inner ring and the outer ring, wherein the cassette seal has a carrier, a seal which is fastened to it and a bent sheet-metal ring, against which sealing lips of the seal bear. For the inexpensive manufacture and the effective sealing of a radial bearing of this type, there is provision according to the invention for an additional means to the static seal to be arranged between the bent sheet-metal ring and the bearing ring.
    Type: Application
    Filed: December 8, 2006
    Publication date: December 18, 2008
    Applicant: SCHAEFFLER KG
    Inventor: Wilhelm Walter
  • Patent number: 7458727
    Abstract: The invention relates to a seal arrangement for sealing off at least one radial interspace between at least one bearing ring which can rotate and at least one rotationally fixed bearing ring. The seal arrangement is provided with at least a first carrier, the first carrier carrying at least one resilient seal and being fixed to a rotationally fixed bearing ring, and a second carrier, the second carrier being fixed to the bearing ring that can rotate and carrying at least one encoder. The encoder has an outwardly oriented circumferential surface in the shape of a truncated circular cone.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: December 2, 2008
    Assignee: Schaeffler KG
    Inventors: Peter Niebling, Jens Heim, Heinrich Hofmann, Darius Dlugai, Roland Langer
  • Publication number: 20080289926
    Abstract: An improved seal assembly is provided that minimizes loss of transmission pump pressure by controlling fluid flow past a torque converter hub bushing to meet bushing lubrication requirements without unnecessarily diminishing pump pressure and while also minimizing frictional losses. The seal assembly includes a rigid carrier adapted to fit between a pump body member and the torque converter hub. An elastomeric lip extends from the rigid carrier. A contact layer is connected to the elastomeric lip and configured to sealingly contact the torque converter hub. The contact layer is integral with and harder than the elastomeric lip, therefore minimizing frictional losses.
    Type: Application
    Filed: February 27, 2008
    Publication date: November 27, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Richard F. Olenzek, Steven A. Coleman
  • Publication number: 20080209812
    Abstract: The invention relates to an improved gasket for a French door type refrigerator including a rotating mullion. The improved gasket reduces condensation around the area at the top and bottom of the rotating mullion and the gap between the mullion and cabinet. The gaskets located on the inner periphery of die doors are provided with tabs to seal the gap. An additional magnetic element is provided on the tabs to improve sealing and the thermal properties of the tab seals to alleviate the formation of condensate in this critical area.
    Type: Application
    Filed: January 24, 2008
    Publication date: September 4, 2008
    Inventors: ARNAUD LANCRY, ADRIAN SARGEANT, SIMON ALBRECHT