Patents Examined by Vishal Patel
  • Patent number: 9964215
    Abstract: A sliding component is characterized in that the sealing face of one of a pair of sliding parts that slide relative to each other is provided with a first pumping groove that is open to the high-pressure fluid side but isolated from the low-pressure fluid side by a seal area and also angled to discharge the fluid toward the high-pressure fluid side by sliding relative to the mating sealing face, as well as a second pumping groove that is open to the low-pressure fluid side but isolated from the high-pressure fluid side by a seal area and also angled to discharge the fluid toward the high-pressure fluid side by sliding relative to the mating sealing face, wherein the low-pressure fluid-side end of the first pumping groove is arranged adjacent to the high-pressure fluid-side end of the second pumping groove.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 8, 2018
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Masatoshi Itadani
  • Patent number: 9945483
    Abstract: A system includes a first surface, a second surface, and a sealing system operable to provide an aerodynamic seal between the first surface and the second surface. The second surface may be a surface to be sealed. The sealing system includes a first member and a base. The first member includes a first portion and a bulb coupled to the first portion. The first portion has one or more projections and is adapted to couple the first member to the first surface. The base includes a plurality of feet, a plurality of arms, and an arched portion. The plurality of feet are adapted to be positioned against the second surface. The plurality of arms are adapted to accept the bulb. The arched portion forms a preloaded seal adapted to seal against the second surface when air pressure is exerted against a side of the base.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: April 17, 2018
    Assignee: Lockheed Martin Corporation
    Inventors: Kent W. Benner, Roland A. Creswell, James K. Lash, William Alfred Thomas, Jr.
  • Patent number: 9945241
    Abstract: The present invention relates to a sealing element (100) of an axial turbomachine for the sealing of regions at or in at least two static components of the turbomachine, wherein the components can be moved axially relative to one another. The sealing element (100) has a first radial region (1) with a first stiffness or rigidity and a second radial region (5) with a second stiffness or rigidity, wherein the first stiffness and the second stiffness are different from one another, and the sealing element (100) is configured as segmented in the peripheral direction of the turbomachine.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: April 17, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Manfred Feldmann, Janine Sangl
  • Patent number: 9915351
    Abstract: This invention relates to a seal for sealing between a stator and rotor, including a generally annular carrier, an array of adjacent leaves mounted in the annular carrier for sealing between the stator and the rotor with their panes lying parallel to the axis of the carrier and front and back plates disposed on respective axial sides of the leaves, characterized in the front and back plates have one or more apertures dimensioned for providing a substantially symmetric pressure drop across the leaves.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: March 13, 2018
    Assignee: CROSS MANUFACTURING COMPANY (1938) LIMITED
    Inventors: Aaron Bowsher, Peter Francis Crudgington
  • Patent number: 9915120
    Abstract: A seal element for sealing a conduit is described. The seal element comprises a frusto conical portion and a first lip extending from an external edge of the frusto conical portion, the lip being adapted to be pivoted into engagement with a conduit surface. In a described embodiment, two seal elements are provided on a plug for sealing a conduit, the seal elements facing in opposite directions to seal from above and below.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 13, 2018
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Lee Mercer, Stewart Christie
  • Patent number: 9897209
    Abstract: A sleeve, rotary seal, rotary seal assembly, shaft with an integrated primary surface, rotary seal assembly component, and/or any combination thereof which preferably results in rotary seals having a higher tolerance for radial eccentricity (static eccentricity and/or dynamic eccentricity). Related methods of manufacturing, using, and/or providing same are also set forth.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 20, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Raymond Lee Chaplin, III, Tyler James Ryther
  • Patent number: 9890859
    Abstract: An insulation gasket that includes a metal core (100) defining an inner serrated annular section (105) that is radially spaced from an outer serrated annular section (110); and an annular groove (115) formed between the inner and outer serrated annular sections; and a first material (135) accommodated in the annular groove (115). In certain embodiments, a second material (125) engages the inner serrated annular section (105); and a third material (130) engages the outer serrated annular section. In one embodiment, the first and second materials comprise an electrical insulation material and the third material comprises a fire safe material.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: February 13, 2018
    Assignee: TEADIT N.A., INC.
    Inventors: Jose Carlos Carvalho Veiga, Luiz Paulo Camargo Vieira Romano
  • Patent number: 9879784
    Abstract: In an apparatus having a housing, a housing bore, and a shaft rotatably extending through the housing bore, a rotary seal assembly which includes a seal carrier retainer connected with the housing and defining a cavity surrounding the shaft, a seal carrier positioned within the cavity of the seal carrier retainer, wherein the seal carrier is capable of an amount of radial deflection and tilting both relative to the seal carrier retainer and wherein the seal carrier is retained by the seal carrier retainer so that rotation of the seal carrier relative to the seal carrier retainer is prevented, a rotary shaft seal carried by the seal carrier between the seal carrier and the shaft, and a seal carrier seal interposed between the seal carrier and the seal carrier retainer.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 30, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kennedy J. Kirkhope, Everett Philip Hagar, Alben D'Silva
  • Patent number: 9845880
    Abstract: A sealing ring with a dynamically loaded sealing lip having a sealing edge and a tension element for stabilizing the sealing lip in the radial direction, wherein: the tension element is arranged in a mounting groove; the mounting groove is arranged in the sealing lip on the side facing radially away from the sealing edge and has a mounting opening on the side facing radially away from the sealing edge, which opening is delimited by two guide webs arranged so as to be adjacent to each other at a spacing in the axial direction; the sealing lip is articulated, on its side facing axially away from the sealing edge, to a support member with a joint; and the sealing lip and the support member delimit, with their sides which radially face each other, a substantially C-shaped joint space which is open on one side in the axial direction.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: December 19, 2017
    Assignee: CARL FREUDENBERG KG
    Inventors: Kristian Mueller-Niehuus, Hans-Werner Guenther
  • Patent number: 9845878
    Abstract: A sealing structure enables easy fitting of an endless backup ring and includes: tank main body having filling chamber body with filling chamber and mouthpiece portion formed in cylindrical shape integrally with filling chamber body; valve body having insertion portion inserted in mouthpiece portion; O-ring provided between mouthpiece portion and insertion portion; and first backup ring endless and disposed on one side of O-ring to restrict movement of O-ring, wherein annular housing groove is formed on inner circumferential surface of mouthpiece portion such as to be recessed outward with respect to radial direction in order to house O-ring and first backup ring, wherein mouthpiece portion is provided with first cylindrical portion integral with filling chamber body and second cylindrical portion attachable/detachable along axial direction to/from first cylindrical portion, and wherein housing groove is divided along axial direction to face outward when second cylindrical portion detaches from first cylindri
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 19, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Taneaki Miura, Koichi Takaku, Koichi Kato, Saneto Asano, Hiroyasu Ozaki
  • Patent number: 9835252
    Abstract: A system, in certain embodiments has, a fluid seal having a seal body, including a seal interface having one or more engagement portions, a first elastomer portion disposed along the seal interface, and a second elastomer portion disposed along the seal interface, wherein the first and second elastomers have material properties that are different from one another.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 5, 2017
    Assignee: ONESUBSEA IP UK LIMITED
    Inventor: Christopher George Kocurek
  • Patent number: 9835253
    Abstract: A brush seal assembly may include: a packing body configured to be positioned between a rotating body and a fixing body and provided with an insertion groove; a brush seal part configured to include a brush extending toward the rotating body in a state in which one end of the brush seal part is inserted into the insertion groove and a support member supporting the brush; a thermal expansion member configured to adhere to a side of the support member and be thermally expanded in a circumferential direction of the packing body; and a fixing member configured to be fitted in the insertion groove to face the thermal expansion member to simultaneously fix the brush seal part in the circumferential direction and a radial direction of the packing body.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: December 5, 2017
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventor: Mahmut Faruk Aksit
  • Patent number: 9822882
    Abstract: A sealing device is provided with a seal lip which extends toward a sealing space side, a lip edge and an opposite sealing space side conical surface are formed in an inner peripheral surface of the seal lip, the lip edge being slidably brought into close contact with an outer peripheral surface of a rotating body, and the opposite sealing space side conical surface being larger in diameter from the lip edge toward an external space side, a plurality of screw protrusions are formed in the opposite sealing space side conical surface, the screw protrusions generating a screw pump action toward the lip edge side on the basis of rotation of the rotating body in a fixed direction, and a desired number of dust capture portions are formed in a hem portion of each of the screw protrusions, thereby preventing dusts from being bitten into the lip edge sliding portion.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: November 21, 2017
    Assignee: NOK Corporation
    Inventors: Makoto Kamemura, Hideharu Hyakutake
  • Patent number: 9816617
    Abstract: A magnetic fluid seal includes a pole ring having an inner diameter, a rotatable shaft having an outer diameter, the rotatable shaft configured to extend along the inner diameter of the pole ring between an atmosphere side and vacuum side, at least one magnet coupled to the pole ring, the at least one magnet configured to emit a magnetic field having a strength and a shape, and grooves formed on either the inner diameter of the pole ring or the outer diameter of the shaft, the grooves capable of containing ferromagnetic fluid. The ferromagnetic fluid contained the grooves varies so as to improve the performance of the magnetic fluid seal.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: November 14, 2017
    Assignee: RIGAKU INNOVATIVE TECHNOLOGIES, INC.
    Inventors: David G. Mahoney, Walter Helgeland
  • Patent number: 9803752
    Abstract: A sealing assembly for a shaft includes: a first sealing component; a first spring energizer associated with said first sealing component; an annular support member configured for supporting said first sealing component; a second sealing component; a second spring energizer associated with said second sealing component, said first and second sealing components each having a pair of seal lips, said pairs of seal lips facing each other, said first and second spring energizers each configured for energizing respectively said first and second sealing components, each said spring energizer being respectively between one said pair of seal lips, said annular support member being disposed about the shaft and positioned between said first and second sealing components and said first and second spring energizers, said annular support member including two outwardly facing protuberances each of which interfits with a respective said pair of seal lips.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: October 31, 2017
    Assignee: Trelleborg Sealing Solutions US, Inc.
    Inventors: Larry J. Castleman, Gregory D. Jones, Brian Bowen
  • Patent number: 9784372
    Abstract: Provided is a sealing device that increases the lubricity of seal surfaces, prevents leakage of sealed fluids, and prevents excessive heat generation and excessive friction at seal surfaces. Said sealing device, which is of the type that seals a fluid trying to leak from the outer periphery of a sealing surface towards the inner periphery thereof, forms at least two dimples in a circumferential direction in each of a plurality of rows arranged in a radial direction on a sealing surface of a stationary-side sealing element or a rotating-side sealing element. Each dimple is tilted by a dimple angle ? between 0° and 90°, exclusive, such that the tip of that dimple in the direction of rotation is tilted toward the inner periphery side. In each of the plurality of rows of dimples, land areas are formed in the circumferential direction between the proximate tips of adjacent dimples.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: October 10, 2017
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Tetsuya Iguchi, Kazuhiro Iwashita, Yasuhiro Kuroki
  • Patent number: 9784371
    Abstract: Described is a brush seal for sealing between a first component and a second component which relatively rotate during normal use, comprising: an annular housing which is attached to a first component in use; a plurality of bristles each having a fixed end attached to the housing and a free end, wherein the free ends of at least some of the plurality of bristles contact the second component during normal use to provide a sealing surface, wherein the sealing surface includes a plurality of discontinuities around the circumference of the brush seal for providing hydrodynamic lifting force in use.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 10, 2017
    Assignee: ROLLS-ROYCE plc
    Inventors: Gervas Franceschini, Terence Valentine Jones, Felix Lepetit
  • Patent number: 9772037
    Abstract: A sliding component, which achieves both sealing and lubrication by preventing cavitation from occurring in the dynamic-pressure generation mechanism and thereby solving the problem of leakage that will otherwise result from such cavitation, is characterized in that, on a sealing face of one of a pair of sliding parts that slide against each other, extremely shallow grooves constituting a Rayleigh step mechanism are provided in a manner facing the high-pressure fluid side of the sealing face, while deep fluid-introduction grooves for introducing the high-pressure fluid are provided on the upstream side of the extremely shallow grooves in a manner continuing to the high-pressure fluid side.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 26, 2017
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Yuichiro Tokunaga
  • Patent number: 9765893
    Abstract: A ball joint dust cover is provided. The ball joint dust cover is made of a rubbery elastic material and is provided with a small diameter opening part with which a hard ring is formed. The hard ring is sandwiched by a retainer having a three-sided box shape. The retainer includes a plurality of gaskets contacting the hard ring.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: September 19, 2017
    Assignee: NOK Corporation
    Inventor: Tatsuro Hosen
  • Patent number: 9751361
    Abstract: A wheel bearing has a seal device formed as a pack seal with an annular sealing plate and slinger. The sealing plate has a metal core and an integrally adhered sealing member. The sealing member has a base portion, side lip and radial lip. The base portion covers an inner circumferential surface of the metal core. The radial lip slidingly contacts the cylindrical portion of the slinger. A garter spring is mounted on the radial lip. A tightening force of the garter spring is set to 50% or more of a total tightening force of the radial lip. The tightening force of the radial lip without the garter spring is set to 3N or more.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: September 5, 2017
    Assignee: NTN Corporation
    Inventors: Makoto Seki, Tomoko Baba