Each End Has Recess For The Seal Patents (Class 277/614)
  • Patent number: 11320050
    Abstract: A structure for mounting a gasket on a block includes a block with a fluid channel and an annular gasket surrounding an opening of the fluid channel. The block has an annular inner wall and an annular outer wall. The annular inner wall is made of resin and located radially outside the opening of the fluid channel. The annular outer wall is made of resin and located radially outside the annular inner wall. The annular inner wall and the annular outer wall allow an axial side of the gasket to be press-fitted therebetween and are elastically deformable in their radial directions.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 3, 2022
    Inventors: Atsushi Nakano, Toshihide Iida, Tomoyuki Koike, Tomohiro Adachi
  • Patent number: 11067175
    Abstract: A structure allowing a gasket to be mounted on a fluid device is provided. The gasket includes a ring with a first annular slope at a first axial end. The fluid device includes an inner sleeve with a second annular slope and an outer sleeve radially outside the inner sleeve. An outer periphery of the ring includes an annular contact face that contacts the outer sleeve and an annular non-contact face radially separated from the outer sleeve. The first annular slope contacts an outer periphery of the second slope.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 20, 2021
    Inventors: Tomohiro Adachi, Atsushi Nakano, Tomoyuki Koike, Kazukiyo Teshima, Motoaki Naruo
  • Patent number: 10920670
    Abstract: A sealing arrangement at an interface between a combustor and a turbine of a gas turbine. The turbine can include deflecting vanes at its inlet, which deflecting vanes are each mounted within the turbine so as to define an inner or outer diameter platform and are in sealing engagement via an inner or outer diameter vane tooth with a seal arranged at the corresponding inner or outer diameter part of the outlet of the combustor. The seal is movable and is pressed on the inner or outer diameter vane tooth by a differential pressure such that the pressure of the mainstream hot gas flow is a lower pressure.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: February 16, 2021
    Inventors: Marcos Escudero Olano, Stephan Strueken, Thomas Zierer, Frank Graf, Adnan Eroglu, Joshua R. McNally, Stephen W. Jorgensen, Afzal Pasha Mohammed
  • Patent number: 10907735
    Abstract: A gasket and flange connection structure for a plumbing instrument including a substantially annular core (30) coated with a coating part (31) and formed with annular seal surfaces (32) on both surfaces. These annular seal surfaces (32) are provided so as to be capable of making sealed contact with any of flange surfaces (20, 21, and 22) of a flat seat shape flange, a full-flat seat shape flange, and a grooved-shape flange for allowing shared use. Configured on outer peripheral sides of the annular seal surfaces (32) are extended mounting parts (33) having a plurality of different diameters in accordance with the outer diameters of the various flange surfaces.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 2, 2021
    Assignee: SHIMIZU ALLOY MFG. CO., LTD.
    Inventors: Ryosuke Takeuchi, Kazuhiro Chino
  • Patent number: 10705081
    Abstract: Methods and compositions for the detection and quantitative measurement of biomarkers and other target analytes by determining impedance in bodily fluid samples and/or environmental samples using compositions comprising a base substrate with electrodes, a nanoporous membrane placed on top of the nanoporous membrane, O-rings placed on top of the nanoporous membrane and a manifold placed on top of the O-rings. Such a composition may be placed in a testing platform to ensure the application of constant, repeatable pressure to the composition.
    Type: Grant
    Filed: September 2, 2017
    Date of Patent: July 7, 2020
    Assignee: SYMPANO, INC.
    Inventors: Thomas W. Barrett, Shalini Gautam, Rooplekha Mitra, James Thorne
  • Patent number: 10704712
    Abstract: A pressure-energized ring joint gasket such as a CX gasket for a clamp or other connector includes a cylindrical inner surface oriented toward adjacent sections of a subsea stack that are to be joined by the connector, wings that taper away from the cylindrical inner surface and end in a rectangular shoulder, wherein a portion of the rectangular shoulder is removed to create a boss, an upper groove, and a lower groove, and D-rings in the upper and lower grooves. The gasket can be used to connect adjacent sections of the stack and to maintain a seal between the sections whether the external sea water pressure is greater or less than the internal well pressure. A method for using the gasket for connecting adjacent sections of a subsea stack in offshore drilling environments is also provided.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 7, 2020
    Inventor: Bruce Boulanger
  • Patent number: 10449350
    Abstract: Provided is a connector for substantially aseptic connection of tubing, that includes a central tubular stem member with a line connection end and a coupling end having an annular gasket arranged to engage a similar annular gasket on a similar second connector in sealing abutment and a tubular socket member, concentrically arranged outside the stem member, having a flange concentrically arranged outside the coupling end and a cover film releasably bonded to the flange and covering the coupling end of the stem member, the annular gasket and at least a portion of the flange. The socket member is rotatable around the stem member and the connector also has an annular seal member in sealing abutment between an inside of the socket member and an outside of the stem member.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: October 22, 2019
    Inventor: Klaus Gebauer
  • Patent number: 10295060
    Abstract: A method for sealing a gap sub wherein injected material is used to secure a seal member in a gap. The seal member is positioned in the gap, and the material is then injected into the gap and against the seal member, seating the seal member and securing it in place once the material solidifies. The injected material is preferably electrically non-conductive.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: May 21, 2019
    Inventors: Hasan Alper Hepguvendik, Aaron William Logan, Justin Christopher Logan, Gavin Gaw-Wae Lee, Luke Anthony Stack, Mojtaba Kazemi Miraki, Patrick Robert Derkacz, Daniel William Ahmoye
  • Patent number: 10100958
    Abstract: A gasket for use with flanges has an annular member formed of a metallic material. The annular member has a cross-sectional profile with a body portion having an end surface, a first side, a second side, and a T-shaped portion extending from the body portion. The T-shaped portion of the body portion defines a pair of annular grooves on opposite sides of the annular member. The T-shaped portion has a central portion connected to the body portion and a head portion at an end of the central portion opposite the body portion. The central portion of the T-shaped portion has a weep hole extending therethrough. The weep hole has opposite ends opening respectively to the pair of annular grooves.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: October 16, 2018
    Inventors: Teng Pin Lee, Kevin Poling, Brent Cox, David Older
  • Patent number: 9958095
    Abstract: A mechanical coupling for joining pipe elements end to end has a channel that receives a ring seal. The channel is defined by oppositely disposed sidewalls and the ring seal has lobes on opposite sides. The lobes have surfaces facing the side surfaces of the channel. When the ring seal is seated within the channel, each lobe surface contacts a respective side surface such that the lobes deform inwardly toward the center of the channel.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 1, 2018
    Assignee: Victaulic Company
    Inventors: Kevin J. Blease, Justin P. Brandt, Craig Haney, Steve A. Wortmann, Douglas R. Dole
  • Patent number: 9759378
    Abstract: A pressure clamp for connecting pressure vessel segments can include a pair of semi-circular sections, which can be placed around the ends of the segments, so that there is a slight gap between the semi-circular sections. The inner surfaces of the semi-circular sections can be formed with two notches with beveled surfaces. The beveled surfaces can engage corresponding slanted surfaces on the segment ends, to urge the segments towards each other as the clamp is tightened. A pair of jack screws can be threaded through the semi-circular sections so that the jack screws extend slightly outwardly from one of the sections and contact the other section at the beginning of the tightening process, to establish an initial assembly gap. As fasteners tighten the clamp around the segment, the jack screws can be backed out to maintain a uniformly decreasing assembly gap between the semi-circular sections.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 12, 2017
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventor: Brandon J. Wiedemeier
  • Patent number: 9618119
    Abstract: A sealing element, e.g., a sealing ring, is adapted to seal between two component sections and to be compressed by the two component sections in a groove that is provided in one of the two component sections and having a groove opening and a groove bottom. The sealing element comprises a profile which, in the non-compressed state, comprises different profile heights and at least two outer surfaces. The profile is deformable in the compressed state such that it extends with at least one of its side sections into the groove opening (NÖ) and thereby possibly partially closes the groove opening.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: April 11, 2017
    Assignee: Durr Systems GmbH
    Inventors: Herbert Martin, Michael Baumann, Thomas Buck
  • Patent number: 9605759
    Abstract: A metal gasket has a cross-sectional shape that is a six sided shape that resembles an irregular quadrangle that is substantially isosceles trapezoidal in shape with two sharp angles between the longest side and the second- and third-longest sides, respectively. The longest side of the cross section is the inner wall of the metal gasket.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 28, 2017
    Inventors: Qingpo Xi, Tao Li, Feng Cao, Fumin He, Zhongwei Chen
  • Publication number: 20150021863
    Abstract: A Multipe-leark proof sealing system which is used to join two components sealed together and comprises: a first adapter ring and a second adapter ring and comprising a first joint face and a second joint face, which are opposite to each other, respectively, wherein the first joint face and the second joint face have gasket grooves which are opposite to each other; sealing gaskets which are embedded into the first adapter ring's and the second adapter ring's gasket grooves; a metal sealing ring installed between sealing gaskets on the first adapter ring and the second adapter ring; an auxiliary sealing ring joining the sealing ring's radial inner wall. The sealing structure with multiple sealing surfaces is developed when the first adapter ring and the second adapter ring join together by fastenings.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Inventor: Jui-Kung WANG
  • Publication number: 20130313783
    Abstract: The invention relates to an improved O-ring seal for use as a high vacuum seal. A limitation of standard O-rig seals is the permeation of water through the O-ring. Especially for instruments in which parts are kept at a cryogenic temperature, such as a cryogenic electron microscope, the presence of water in the vacuum is a problem, as this results in ice growth on the cryogenic parts. As a solution often a double O-ring seal is used, or a metal seal. Both of these solutions have severe draw-backs. The invention proposes to place the O-ring in a channel in which dry gas, such as dry nitrogen, is blown. In this way no water can permeate through the O-ring, resulting in a reduced base pressure and highly reduced ice growth.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 28, 2013
    Applicant: FEI Company
    Inventor: FEI Company
  • Patent number: 8528763
    Abstract: The present invention relates to a pressure vessel (1) for a high pressure press comprising at least a first sub-cylinder (4) and a second sub-cylinder (6), which are axially connected to form a cylinder body (2) for enclosing a high pressure medium, and a sealing arrangement arranged at the inner wall of the cylinder body for sealing the joint (3) between the first and the second sub-cylinder (4, 6) against leakage of the pressure medium. The sealing arrangement is comprising a ring shaped sealing band (18), a first circumferential protruding flange (30), which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint (3) and away from the second sub-cylinder (6), and a second circumferential protruding flange (32), which is arranged on the inner wall of the second sub cylinder (6) and which axially extends from the joint (3) and away from the first sub-cylinder (4).
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: September 10, 2013
    Assignee: Avure Technologies AB
    Inventor: Lennart Svensson
  • Patent number: 8349516
    Abstract: A seal arrangement in a fuel cell device seals against leaks in a mechanical joint between two components which convey a liquid and/or a gaseous process medium 3 in a media chamber of the fuel cell device. The seal arrangement has a first sealing member which extends around the media chamber in an installed state, and is in active connection with the components. A second, surrounding sealing member is arranged facing away from the media relative to the first sealing member and is formed of a different material from the first sealing member and/or has a different geometry.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: January 8, 2013
    Assignee: Daimler AG
    Inventors: Thomas Baur, Matthias Jesse
  • Patent number: 8226089
    Abstract: A seal assembly includes a tubular member having a longitudinal axis and a tubular member seal profile. A metal seal ring having a proximal base and a distal end has a seal ring seal profile between the proximal base and distal end that contacts the tubular member seal profile. A distal annular recess is in one of the seal profiles, the distal annular recess being spaced axially from the distal end of the seal ring, defining a seal surface between the distal end of the seal ring and the distal annular recess that engages a seal surface of the tubular member seal profile. The contacting portions of the seal surfaces form a metal-to-metal seal area. A proximal annular recess in one of the seal profiles is spaced axially from the distal annular recess, defining a support area axially spaced from the metal-to-metal seal area.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: July 24, 2012
    Assignee: Vetco Gray Inc.
    Inventors: Joseph W. Pallini, Jr., Rockford D. Lyle, Chii Ren Lin
  • Publication number: 20120074694
    Abstract: Systems for joining pipes used in the food processing and pharmaceutical industries are disclosed. For example, connections of fluid handling pipes and improved flange-type joints are disclosed. Some disclosed joints comprise a pair of flanges each defining a circumferentially extending channel recessed from an end face A radially extending end wall is positioned radially outward of the end face. Said end faces are retained in axially opposed relationship to each other such that a circumferential groove configured to receive a gasket is defined when the joint is assembled. The groove has a first portion open to the flow passage and a second portion extending radially outward from the first portion. A polymeric gasket can comprise a generally toroidal member axially compressed in the first portion of the groove when the joint is assembled. The radial end walls radially compress the gasket, and the gasket can expand radially outward.
    Type: Application
    Filed: June 8, 2010
    Publication date: March 29, 2012
    Inventor: Jeffrey C. Butte
  • Patent number: 8142628
    Abstract: A cylinder block plating apparatus preplates or plates a cylinder bore of each cylinder in a cylinder block of a multi-cylinder engine using a process liquid introduced into the cylinder bore in a condition of sealing an end of the cylinder bore when a communication hole is formed at the end of the cylinder bore, the cylinder block plating apparatus includes a sealing jig including a sealing unit including a cylinder bore seal for sealing the end of an inner peripheral surface of the cylinder bore and a communication hole seal for sealing a portion, near a communication hole, opposite to the cylinder inner peripheral surface, and a clamping unit disposed in the sealing unit to be pushed open and adapted to cause the communication hole seal to seal the portion located on the opposite side of the cylinder bore near the communication hole.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: March 27, 2012
    Assignee: Suzuki Motor Corporation
    Inventors: Osamu Narita, Manabu Suzuki, Tetsuya Kuroda, Hiroyuki Oishi
  • Patent number: 8096560
    Abstract: A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: January 17, 2012
    Assignee: Vetco Gray Inc.
    Inventors: Joseph W. Pallini, Jr., Rockford D. Lyle, Chii-Ren Lin
  • Patent number: 8075255
    Abstract: A device for reducing inter-seal gap in gas turbines. Embodiments of a gas turbine with a first arcuate component adjacent to a second arcuate component; a first slot and a connected second slot on an end of the first arcuate component; a first seal disposed into the first slot and a first adjacent slot on the second arcuate component; a second seal disposed into the second slot and a second adjacent slot on the second arcuate component, leaving a gap between the first seal and the second seal; and a connector coupled to the first seal and the second seal and substantially covering the gap between the first seal and the second seal.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 13, 2011
    Assignee: General Electric Company
    Inventor: Victor John Morgan
  • Publication number: 20110277442
    Abstract: A turbine filter seal assembly may include a first mounting flange with a channel extending about a first air opening, a seal with an enlarged portion compressed into the channel, and a second mounting flange with a protrusion extending about a second air opening. The first and second mounting flanges are configured to couple to one another about the seal, and the protrusion is configured to bias the seal.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 17, 2011
    Applicant: General Electric Company
    Inventor: David Joseph Drobniak
  • Publication number: 20110253667
    Abstract: A flange connection for connecting e.g. two sections of a tube or pipe comprises two flanges and a sealing ring inserted into an annular sealing space defined by radial faces and axially extending peripheral walls between the flanges. The sealing ring has an annular main body and an outer periphery with a cross-sectional shape that has legs extending outwardly from the main body. These legs, in a condition prior to application of sealing pressure, are inclined away from each other and have rounded outer ends that abut both the radial faces and the peripheral walls defining the annular sealing space. The legs, in a condition where the flanges are forced against each other, are axially compressed and upset at least in a radial direction by plastic flow of material on the outer ends in sealing engagement with the axially extending peripheral walls.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 20, 2011
    Inventor: Ludwig Hiss
  • Patent number: 7942422
    Abstract: An elastomeric lip seal joint for sealing the inner liner and grout layers when joining two sections of multiwall pipe having an outer steel casing and an inner liner. The ring-shaped lip seal joint comprises a gasket with insulating material completely covering its outer surface. The insulating material is capable of shielding the gasket from the heat produced when the sections of outer steel casing are welded together. The use of the lip seal joint simplifies the process of joining sections of multiwall pipe. Each side of the lip seal joint is inserted into one of the annular voids at each end of the pipe, thereby sealing the inner liner and grout. A single circumferential weld then joins the outer steel casing. The gasket remains intact during the welding process due to the presence of the insulating material.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: May 17, 2011
    Assignee: Unisert Multiwall Systems, Inc.
    Inventor: Kenneth Tierling
  • Publication number: 20110042905
    Abstract: An annular, chemically nonreactive shell 18 is formed with a base 42, a radially inwardly disposed surface 28 and with a pair of sidewalls 30, 32 that are raised relative to the base. A fire resistant, intermediate core 20 is formed with an annular body 36 and with a radially outwardly projecting end 34. A substantial portion 24 of the core 20 is mounted between the sidewalls 30, 32 of the shell. When installed between opposing pipe flanges 12, the radially inwardly disposed surface 28 of the shell 18 is compressed between the pipe flanges 12 adjacent to the bores of the pipes 14 and provides a fluid tight seal to prevent a process stream 16 from reaching the core. Likewise, the sidewalls 30, 32 are compressed by the pipe flanges 12 and, in turn compress the core portion 24 disposed therebetween. The outer end 34 and a radially outwardly disposed portion 26 of the core 20 expand to protect the shell 18 from heat and flame.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 24, 2011
    Inventor: Richard Schroder
  • Patent number: 7819439
    Abstract: A bore seal for connecting and sealing oil and gas tubular members is disclosed which has a metal core manufactured from a high yield strength ferrous material and a protective overlay of corrosion and abrasion resistant stainless steel and/or nickel based alloy. The protective overlay is applied to the entire outer surface of the bore seal by a metal thermal spray process, such as plasma thermal spraying. In a preferred embodiment of the invention, the bore seal has a fishtail profile which facilitates the use of resilient seals to provide resistance to external pressures in addition to the traditional metal-to-metal seal between the bore seal and the tubular members. In an alternative embodiment, a pressure relief valve is disposed within the bore seal to verify the integrity of the metal-to-metal seal with respect to internal bore pressure.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 26, 2010
    Assignee: Sub-Drill Supply Limited
    Inventors: Alan Stewart Paton, Philip Stanley Roots
  • Patent number: 7789397
    Abstract: An annular, axial seal having a linear section having opposite ends, a first side in a first plane and an opposite second side in a second plane wherein the second plane is parallel to the first plane and a curled section contiguous with one of the ends of the linear section. The curled section curls in a first direction to a distal end. The curled section curls in the first direction in accordance with a predetermined radius and predetermined distance such that the distal end of the curled section is located directly across from the first side of the linear section. The linear section and the curled section provide a generally “J” shaped cross-section. The annular, axial seal also has a tip portion contiguous with the opposite end of the linear section such that the linear section is between the tip portion and the curled section. The tip portion is slightly curved with respect to the linear section such that the tip portion breaks the first plane.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: September 7, 2010
    Assignee: American Seal and Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 7751676
    Abstract: A seal assembly is provided to seal the area between a cable, containing optic fibers for example, and the terminal end of a conduit through which the cable runs. The seal assembly comprises an area of a resilient material and a supporting structure. The seal assembly, encompassing a cable, fits into and seals a standard conduit opening/hole in a cabinet or enclosure.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 6, 2010
    Assignee: Alcatel Lucent
    Inventors: Mike C. Riley, Anthony P. Noto
  • Publication number: 20100127461
    Abstract: A seal ring 10 for sealing between first and second members 12, 14 each having an outer groove surface 16, 126 and inner groove surface 18, 127 includes a metal seal body 26, 42, 52, 60, 70, 80, 92, 110, 122, 140 for engagement with the outer groove surface on the first and second members, and a metal flexible flange 30, 32, 44, 46, 54, 56, 62, 64, 76, 78, 88, 90, 94, 96, 112, 114, 128, 144, 146 with a cantilevered end of a flexible flange providing substantially line contact sealing engagement with the inner groove surface on respective first and second member. The metal flexible flange is configured for being fluid pressure energized, and is deformed beyond its elastic limit when securing members secure the first member to the second member.
    Type: Application
    Filed: January 11, 2010
    Publication date: May 27, 2010
    Inventor: Samuel W. Putch
  • Publication number: 20090224488
    Abstract: Method and system of a flange seal ring. At least some of the illustrative embodiments are systems comprising a metallic ring and a plurality of cogs. The metallic ring comprises a central bore that defines an internal diameter, a first sealing face that defines a first plane, a second sealing face that defines a second plane, a first groove in the first sealing face, and a second groove in the second sealing face. The plurality of cogs couple to the metallic ring, each cog extends through the first plane, and the plurality of cogs positioned one each at a plurality of radial positions around the metallic ring. At least one of the plurality of cogs configured to have an adjustable position relative to the central bore, and the cogs configured to align the central bore to a corresponding bore of a flange.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventor: Charles R. Allen
  • Publication number: 20090058017
    Abstract: Disclosed herein is a downhole tubular sealing system. The sealing system includes, a deformable tubular sealable to a first tubular and a second tubular. The deformable tubular includes, a first deformable portion configured to deform in a first radial direction, a second deformable portion configured to deform in a second radial direction, and a third deformable portion configured to deform in the first radial direction. The second deformable portion is positioned longitudinally between the first deformable portion and the third deformable portion and at least one of the first deformable portion and the third deformable portion is sealable to the first tubular when the first deformable portion or the third deformable portion is deformed. Further, the second deformable portion is sealable to the second tubular when the second deformable portion is deformed.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 5, 2009
    Inventor: Jason M. Harper
  • Patent number: 7467799
    Abstract: A composite metal seal includes core of relatively hard metal, and at least one annular region of relatively soft metal. The annular region of relatively soft metal is integrally bonded with the core of relatively hard metal, and has an annular sealing surface for providing a fluid pressure seal. Such a composite metal seal can be manufactured by welding an overlay of the relatively soft metal onto a workpiece of the relatively hard metal; and machining the overlay of the relatively soft metal to form the annular sealing surface. In a preferred construction, the seal is a ring including two annular regions of the relatively soft metal, which provide tapered annular sealing surfaces for engaging respective sealing surfaces of two mating hubs. Such a seal ring can be used in a subsea collet-actuated pipeline connector to permit a metal-to-metal seal connection to be made and broken a number of times.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: December 23, 2008
    Assignee: Oil States Industries, Inc.
    Inventor: Oran D. Tarlton
  • Publication number: 20080258400
    Abstract: A gasket (1) and seat (2) system for sealing a joint, such as flanges (3, 4), tube or pipe couplings, housings, shafts, is disclosed. The gasket (1) comprises according to one embodiment an inner portion (10), with a wall (17) facing an interior of the coupling and an outer portion (11), which extends axially forming radial end walls (12, 13). The inner portion (10) of the gasket (1) is formed with an angled wall (18), making the inner portion (10) expand inwards, which angled wall (18) interacts with a matching angled wall (25) of the seat (2), such that the joint has provisions for increasing the sealing ability in cases with increased pressure in the coupling. In an embodiment, the gasket may further have the wall (17) facing the interior being adapted to be flush with an interior surface (26) when have provisions for heat expansion and elevated pressures, in order to remain flush with the coupling at elevated temperatures and in order to ensure sealing at elevated pressures.
    Type: Application
    Filed: September 21, 2005
    Publication date: October 23, 2008
    Inventor: Goran Anderberg
  • Publication number: 20080231000
    Abstract: A trapezoid-sectional annular sealing arrangement, including a trapezoid-sectional annular cavity and gasket or packing used to realize the sealing connection of two fluid-containing members connected by fastening threads or bolts, wherein the said annular gasket or packing is enclosed in the said annular cavity formed by the said two fluid-containing members as joined together by fastening threads or bolts, the said trapezoid is disposed to converge radially and inward, the annular gasket or packing has a sectional area slightly bigger than the sectional area of the annular cavity, and the annular cavity is preferably designed to completely sink into one face of the two end faces to be joined. The sectional area and gyro-radius of the annular gasket with a material thermal expansion coefficient different from the annular cavity will either increase or decrease in response to temperature changes at the same time relative to the annular cavity to enhance or retain the original sealing connection.
    Type: Application
    Filed: August 23, 2006
    Publication date: September 25, 2008
    Applicant: Zhejiang China Valve Co., Ltd
    Inventor: Changxiang Xu
  • Publication number: 20080073859
    Abstract: A sealing arrangement, in particular for pipe connections to the exhaust gas system of an internal combustion engine, with a sealing support and at least one sealing element in the form of a ring element (25) that forms a mold seal, is characterized in that a holding device (27) that produces a frictional connection between sealing support and ring element (25) is provided to secure the latter captively to the sealing support.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 27, 2008
    Inventors: Wilhelm Kullen, Wolfgang Eben, Wolfgang Gebhardt, Hansjurgen Mattheis, Martin Kehr
  • Patent number: 7201381
    Abstract: The present invention is directed to a resilient, annular, metallic seal member having a generally “j” shaped cross-section. The annular, metallic seal member includes a first end portion having a first distal end, a generally curled second end portion that extends to a second distal end, and a central body portion between and contiguous with the first and second end portions. The annular, metallic seal member has a first side and an opposite second side. The second end portion curls in a first direction in accordance with a predetermined radius such that the second distal end is located across from the first side of the annular, metallic seal member and the first and second distal ends do not face each other.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: April 10, 2007
    Assignee: American Seal and Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 7198303
    Abstract: Compressed wire filament(s) form a seal that seals the joint between first and second pipes of an automotive exhaust system secured by bolted together first and second flanges. The seal is initially attached to the first pipe and first flange in an intermediate assembly by an interface connection that prevents the seal from axially moving off of the first pipe prior to final assembly to the second pipe and second flange. A male projection is at the end region of the first pipe outer surface to which the seal is attached. The first flange abuts the seal at a planar seal interface. The seal has a bore with a longitudinal channel portion for initially axially engaging the projection and a transverse channel portion medially the seal bore for receiving the projection by rotation of the seal after the projection is axially displaced within the seal bore.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: April 3, 2007
    Assignee: Metex Mfg. Corporation
    Inventors: Lawrence John Brophy, III, Kurry Brian Emmons
  • Patent number: 7048253
    Abstract: A fuel injector for fuel-injection systems of internal combustion engines has a nozzle body and a magnetic coil positioned in a magnetic cup, the magnetic coil being penetrated by the nozzle body; and a plastic coating which at least partially surrounds the nozzle body. The nozzle body and the magnetic cup are sealed from an environment of the fuel injector by a thread-type labyrinth seal.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: May 23, 2006
    Assignee: Robert Bosch GmbH
    Inventor: Hubert Stier
  • Patent number: 7004470
    Abstract: An arrangement for access to the external cylindrical/barrel shaped surface (16b) of a gasket (16) in flange connections in a piping installation in which the piping installation comprises flange halves (1, 1?) of the type in which a gasket (16) is positioned between the flange halves (1, 1?) and the gasket (16) is designed to seal against seating surfaces (2a, 2c) formed by annular grooves (2, 2?) in the opposite end faces of the flange halves (1, 1?), and where annuli (22, 22?) are defined by the end faces (16c) of the gasket (16) and the grooves (2, 2?), which thereby seal along the inner and outer periphery, and where at least one groove (14) runs from the annular groove (2, 2?), essentially in the radial, outward direction.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: February 28, 2006
    Inventor: Ann Helen Hystad
  • Patent number: 6983940
    Abstract: The present invention is directed to a resilient, annular, metallic seal member having a generally “j” shaped cross-section. The annular, metallic seal member includes a first end portion having a first distal end, a generally curled second end portion that extends to a second distal end, and a central body portion between and contiguous with the first and second end portions. The annular, metallic seal member has a first side and an opposite second side. The second end portion curls in a first direction in accordance with a predetermined radius such that the second distal end is located across from the first side of the annular, metallic seal member and the first and second distal ends do not face each other.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 10, 2006
    Assignee: American Seal And Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 6962348
    Abstract: A sealing apparatus includes a sealing arrangement and a groove in a base. The sealing arrangement may comprise an o-ring and a grounding gasket where both the o-ring and the grounding gasket partially protrude in a longitudinal direction from the groove. Thus, the grounding gasket, which is equipped with ends that can be pulled out of the groove, can be removed from the groove by a pulling force. This leaves the o-ring accessible for removal or maintenance at a much lower cost in terms of manufacturing and operational costs. The sealing arrangement may also include inner and outer o-rings which seal a fluid flow from the atmosphere.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: November 8, 2005
    Assignee: Tokyo Electron Limited
    Inventor: Steven T. Fink
  • Patent number: 6945759
    Abstract: A mounting end of an engine-driven accessory includes a longitudinally-extending neck having imperforate lateral surfaces defining a central bore. A flange having a mounting face is disposed at the end of neck. A plurality of generally radially extending drain passages are formed through the flange, which communicate with the central bore to form a fluid flow path between the bore and the exterior of the flange. A seal is provided for blocking selected ones of the drain passages while leaving the remainder of the drain passages open. The accessory may include a cover having an integral sealing rim which cooperates with a notch in a mating component to compress a portion of a resilient seal while simultaneously allowing for expansion of the remainder of the seal.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 20, 2005
    Inventor: Timothy H. Henderson
  • Patent number: 6932355
    Abstract: There is referred to a sealing arrangement (10, 10?) comprising two armature members (11, 12), which are adapted to receive a sealing ring (13, 13?) between them for sealing off a joint between the armature members (11, 12), and a clamping device (30), which during mounting is adapted to clamp the armature members (11, 12) against each other in a direction towards the intermediate sealing ring (13, 13?), where the sealing ring (13, 13?) has a substantially T-shaped annular cross-section, with a stem (14) extending radially outwards and with a sealing face (15a, 15b) facing radially outwards in each of two sealing wings (15, 16) projecting axially outwards in opposite directions from stem (14) of the T-shape, the sealing wings (15, 16) having mutually equivalent forms and equivalent conical sealing faces (15a, 16a) for forming abutments against their respective conical support faces (21, 25) of each of the armature members (11, 12).
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: August 23, 2005
    Assignee: Den Norske Metallpakningsfabrikk AS
    Inventor: Ole Hjertholm
  • Patent number: 6837482
    Abstract: A sealing arrangement and method are disclosed for enhancing a seal in response to conditions of changing temperature. An annular seal is disposed in an annular sealing cavity, with the seal and the cavity having different changes in dimensions in response to a temperature changes. The sealing cavity has a radially outwardly positioned end portion that converges radially outward and a radially inwardly positioned end portion that converges radially inward. Differential changes in the dimensions of the sealing cavity and the sealing member force the sealing material to wedge into one of the converging end portions to enhance the sealing relationship.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: January 4, 2005
    Assignee: Xomox Corporation
    Inventors: Brian Nolan, Steven M. Kirk
  • Patent number: 6811157
    Abstract: A gasket made of nickel, nickel alloy or stainless steel has a sealing face to be engaged by a knife-edge of a joint part. The gasket is cut to form a concave groove, a stepwise reduction in thickness or a sloping cut-out at the sealing face. The sealing face is protected from contact by an adjacent higher land portion. During processing, the gaskets can be stacked or carried on a rest. Any contact occurs at the land portion rather than at the sealing faces, which are protected by the land portions from contact. Dents or scratches in the sealing faces are prevented.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: November 2, 2004
    Assignee: Vacs SEV Co., Ltd.
    Inventors: Satsuo Shinoda, Satoshi Kurokochi
  • Patent number: 6769698
    Abstract: The object of this invention is to provide a structure of seal ring, and seal structure using the seal ring for flange joints of composite tanks and pipes, that prevents seal surface variations due to differences in thermal contraction between the seal ring and the tank/the flange joint, etc., that improves the resilience of the seal, and that prevents gas leakage due to poor sealing, in order to achieve the stable sealing. The seal ring fits into a ring groove formed in a sealed unit such as a tank unit or a flange joint to provide a tight seal to contain fluids. The heart-shaped seal ring has three curved surface areas that smoothly flow together, comprised of a first curved seal surface which contacts the formed surface of the ring groove, a second curved seal surface which contacts the seal surface of a second member (e.g. manhole cover), and a projecting curved surface on the opposite side.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: August 3, 2004
    Assignees: Mitsubishi Heavy Industries, Ltd., Eagle Engineering Aerospace Co., Ltd.
    Inventors: Takanobu Kamiya, Makoto Watanabe, Tetsuya Iguchi
  • Patent number: 6722664
    Abstract: A high pressure seal consists of a minimal convex excess which induces a plastic-elastic deformation on the flat opposing surface. The excess can also be formed by means of a ring with a circular cross section which after tightening of the screw coupling likewise forms a small convex excess. Removal of the ring without damage is accomplished by application of pressure by means of a smaller additional groove and a pressure feeding bore discharging into the additional groove.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: April 20, 2004
    Inventor: Horst Kleibrink
  • Patent number: 6568692
    Abstract: A low stress seal seals boundaries between rotor sections of a turbofan engine. The low stress seal includes rounded feet on the ends of legs, which rounded feet cooperate with rounded interior corners within a seal groove. The elimination of sharp interior corners reduces stress and prevents the fatigue failures.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: May 27, 2003
    Assignee: Honeywell International, Inc.
    Inventors: Michael J. Kolodziej, Raymond Hemmele
  • Publication number: 20030011143
    Abstract: A gasket 13 is made of nickel, nickel alloy or stainless steel. A portion which is made a sealing face 1s by abutting on a knife-edge 2b of a joint is cut so as to form a concave groove 10. The concave groove 10 has a structure one step lower than land portions 11a, 11b comprised of both sides 1a. In the process from the production of the gasket to its installation, the land portions prevent the gaskets or the gasket and a rest from contacting with each other. Accordingly, no dent and no scratch is formed.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 16, 2003
    Inventors: Satsuo Shinoda, Satoshi Kurokochi