СОСТАВНАЯ ПРОКЛАДКА И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Изобретение относится к области изготовления составных многослойных уплотнительных прокладок и может быть использовано при изготовлении двигателей внутреннего сгорания. Прокладка содержит первый и второй стальные листы прокладки и, по меньшей мере, один слой покрытия, нанесенный на поверхность первого или второго стального листа и размещенный между ними. Электрическое сопротивление слоя покрытия выше, чем сопротивление стальных листов прокладки. В прокладке выполнен ряд выровненных отверстий и упругие уплотняющие валики. Способ включает формирование отверстий и уплотняющих валиков в стальных листах, нанесение слоя покрытия на одну поверхность, по меньшей мере, одного из стальных листов прокладки и сварку слоев прокладки с покрытием с помощью лазера. Также способ может включать операцию размещения слоев в фасонной матрице. Технический результат - исключение отдельной операции соединения слоев, имеющих различное электрическое сопротивление. 3 н. и 17 з.п. ф-лы, 7 ил.

УПЛОТНИТЕЛЬНОЕ КОЛЬЦО

Изобретение предназначено для герметизации затрубного пространства при соединении изолирующей втулки подводной фонтанной арматуры (далее – ПФА) газоконденсатных эксплуатационных скважин с подвеской обсадной колонны в колонной головке. Изделие устанавливается на посадочное место изолирующей втулки ПФА. Уплотнительное кольцо содержит два металлических торцевых опорных кольца с выемками и эластомерный уплотнительный элемент между ними, в центральной части эластомерного уплотнительного элемента выполнены наружный и внутренний выступы. Наружный выступ имеет площадку шириной F и высотой D, переходящую посредством наклонных участков в боковые части эластомерного уплотнительного элемента, расположенные в металлических торцевых опорных кольцах. Внутренний выступ имеет площадку шириной H и высотой E, переходящую посредством наклонных участков в боковые части эластомерного уплотнительного элемента, расположенные в металлических торцевых опорных кольцах. Причем угол перехода G наклонных участков равен ...

STATISCHE DICHTUNGEN

Dichte Durchfuehrung eines oder mehrerer elektrischer und/oder Waermeleiter durch einen Isolierkoerper

A gasket arrangement

IMPROVEMENTS IN OR RELATING TO GASKETS

... 1,255,485. Joint-making packing. ENGINEERING COMPONENTS Ltd., and D. P. LYNCH. 5 Dec., 1969 [18 Dec., 1968], No. 60079/68. Heading F2B. An eyelet 14 secured to an aperture 11 in a cylinder head gasket is formed from a metal base to which is bonded a layer 17 of fluent material (i.e. a thermoplastics material such as PVC). Fig. 2 is a detail of Fig. 1 showing the layer 17. The base metal may be steel, electrotinned steel, aluminium clad steel or copper. The material for the eyelets may be produced by first cleaning and drying a metal base or strip and then coating the surface with a primer (e.g. polyvinyl butyral solution); after the primer has been dried in an oven, the surface is coated with particles of PVC dispersed in plasticizer with solvent and treated in the oven to form the PVC coating. The gasket may be formed of a central metal layer 10 covered on each side by a layer 10A, 10B of asbestos or other heatresistant composition, the eyelet 14 surrounding the cylinder bore 11 being ...

Improvements in and relating to a Sealing Device for a Door or the like.

... 1,188,762. Pressure closure members. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 June, 1968 [9 June, 1967], No. 27475/68. Heading F2P. A seal for a door or window of a liquefied gas bubble chamber consists of a U-shaped metal section 2 having raised edges 6, 7 channelled to hold sealing rings 14, 15 on the limbs 4, 5 and housing a spring if within its bight 10 for pressing the seals into contact with the door and chamber surfaces. The section 2 is of stainless steel and the spring 11 is of beryllium bronze and spaced by a packing 20 of P.T.F.E. The seals 14, 15 are of indium. The spring may be divided into sections 11a, 11b, 11c ...

BREECH BLOCK HANGER SUPPORT

A seal arrangment comprising a wound strip

A seal arrangement including a spirally wound strip 200 having opposed sides of which are arranged, in use, to be clamped between opposed faces to be sealed. The length of a line from a surface of the strip that faces inwardly (102, figure 3) to a surface that extends outwardly, which line is perpendicular to at least one of the surfaces, varies going from one side region to the other side region. The length of the line may be greater at a middle region of strip 200 thus making the strip thicker in the middle to that of the sides. One or both opposed faces may be curved in which one or of the curves is arcuate along at least part of its extent. A soft sealant 216A may extend between adjacent ends of the wound strip; whereby the soft sealant may further extend over each end of the strip. A soft sealant 216 may extend over a succession of windings of the strip and over any spaces between those windings prior to being clamped between opposed faces to be sealed.

Subsea wellhead system

The subsea wellhead system includes a wellhead 24, a housing seat 70 disposed and connected to the wellhead 24, a casing hanger 50 landed and supported by the housing seat 70, a holddown and sealing assembly 180 disposed in the annulus between the wellhead 24 and casing hanger 50, a running tool 200 attached to the casing hanger 50 for lowering the casing hanger 50 into the well and for initially actuating the holddown and sealing assembly 180, and other apparatus for applying hydraulic pressure to further actuate the seal of the holddown and sealing assembly 120. The housing seat 70 and wellhead 24 are connected by a breech block connection 66, 76. The housing seat 70 maintains a full 360 DEG circumferential bearing surface with the casing hanger 50. The holddown and seal assembly 180 includes an upper rotating member 182 threadingly engaging the casing hanger 50 and suspending a lower stationary member 184. The stationary member 184 includes a Z- shaped portion 220 composed of a plurality ...

Improvements in or relating to metallic gaskets

A metallic gasket comprises a resilient metallic base plate (4) formed with a sealing bead (16) and a respective sub-plate (6) laminated to each major surface of the base plate (4), the sub-plates being formed of metallic plate less hard than the base plate. Preferably, a sealing material (8) is attached to at least one surface of each of the sub-plates (6) to prevent damage of the joint area and effectively to compensate for irregular conditions in the joint area. In one embodiment, sealing beads of different curvature or inclination are formed on the base plate (4) so that different urging forces are exerted thereon to prevent leakage. Further intermediate plates may be provided between the base plate and the sub- plates. Also each sub-plate may be plated with a layer to prevent rust and flow of the sealing material. ...

SUBSEA WELLHEAD SYSTEM

SUBSEA WELLHEAD SYSTEM

IC ENGINE

LIGHTING STRIKE PROTECTION

VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON SCHICHTSTOFFEN

Low leakage rate composite gasket

The present invention relates to a gasket (1) comprising a first discrete component and a second discrete component, wherein the first and second components (20) extend along the length of the gasket (1). The second component (20) is arranged relative to the first component (10) so as to separate the first component (10) at least from one of the two sealing surfaces (2, 4). The first component (10) is relatively hard in at least the thickness direction of the gasket (1) and preferably incompressible and the second component (20) is relatively soft in at least the thickness direction of the gasket (1) and compressible. When the gasket is compressed between two flanges (101, 102), there is a limited region of high compression, because the first component (10) increases the pressure by which the second component (20) is compressed between the surfaces of the flanges. This yields a high leak tightness of the sealing at a relatively low force.

WOVEN TUBULAR GASKET WITH CONTINUOUS INTEGRAL ATTACHMENT MEANS

This invention provides a woven tubular gasket having a continuous integral attachment means which is contained within the woven tubular members and which has protrusions which extend through or are extendable through the walls of the woven tubular member or members and are adapted to engage openings in an appropriate surface or substrate on which the gasket is to be attached. The method of this invention provides for continuously forming the combination of the attachment means and the woven tubular member. The attachment means is fed continuously into the interior of the woven tubular member as it is formed to thereby incorporate the attachment means into the interior of the woven tubular member.

Verfahren zum Abdichten von gusseisernen Wasser- und Gasrohrmuffen.

Einrichtung zur Abdichtung des Zylinderdeckels von Verbrennungsmotoren.

Pièce d'étanchéité

Dichtungsvorrichtung an zwei abzudichtenden Teilen einer Hochvakuumapparatur

Zylinderkopfdichtung für Brennkraftmaschinen

Abdichtung des Ofenkörpers von Induktionsrinnenöfen gegen die Schmelzrinnenkörper

Zylinderkopfdichtung

Elément d'étanchéité pour organe de fermeture d'un orifice

SEALING ELEMENT IN FORM WAERMEUND HIGH FREQUENCY RADIATION PREVENTION, FLEXIBLE INSERT.

RING SEALING

Plastic or copper asbestos joints reinforced

SEAL PLANE SOFT MATERIAL, IN PARTICULAR CYLINDER HEAD GASKET

JOINT DE CULASSE POUR MOTEURS A COMBUSTION INTERNE

Joint de culasse pour moteurs à combustion interne. Le joint de culasse selon l'invention est caractérisé par le fait que le matériau se trouvant entre les flancs des bordures métalliques 18a-18f de la chambre de combustion présente un secteur annulaire interne 25, 28, 30a dont la liaison par matériau au matériau de joint environnant 19 est interrompue au moins sur la portion principale de son pourtour extérieur encore recouvert par les flancs des bordures de la chambre de combustion. Application à l'industrie automobile.

Washer shoulder and assembly thereof with a fastener

GASKETS

JOINT TO ENSURE A SEALING COMBINEE WITH RESPECT TO HEAT AND RADIATIONS HIGH FREQUENCY IN A HIGH FREQUENCY BOILING APPARATUS

Annular sealing component comprising at least one rigid part and one flexible part.

CYLINDER HEAD GASKET FOR INTERNAL COMBUSTION ENGINES

DEFORMABLE SEALING RING ARRANGEMENT

Sealing ring made of coils of helically wound multilayered filaments

Bague d'étanchéité constituée d'une bobine d'au moins un fil enroulé en spirale, en plusieurs couches, caractérisée en ce que le fil présente une âme en graphite sans imprégnation faite d'au moins une bande de graphite d'étanchéité ainsi qu'un guipage fait de fils métalliques minces par rapport à l'âme en graphite et en ce que la bobine est pressée en un corps indéformable, dans lequel les spires de la bobine s'accrochent entre elles par des fils métalliques, s'engageant les uns dans les autres, du guipage du fil ...

SIT AND APPARATUS FOR DEVICE OF SUSPENSION OF COLUMN, AND PROCEEDED OF COMPLETION Of an UNDERWATER WELL

SEALING RING WITH A 3D-PRINTED INLAY

sistema de vedação de flange em combinação com um par de flanges de ponta de tubo dos tubos adjuntos unidos um ao outro por forma adequada de fechamento e elemento de vedação para uso em combinação

SPIRAL GASKET

... [Problem] The purpose of the present invention is to provide a spiral gasket which is less affected by the thermal degradation of the material under high temperature and high pressure conditions than conventional products and which therefore maintains consistent sealing performance for a long period of time. [Solution] A spiral gasket (1) has a seal section (5) formed by winding a metallic hoop material (3) having a bent section (2) in a cross-section thereof, the metallic hoop material (3) being wound in a spiral shape so that the bent section (2) of each winding is superposed on each other, the seal section (5) having a filler material (4) disposed in the radial gap between the windings of the metallic hoop material (3). The spiral gasket (1) is characterized in that at least a part of the filler material (4) in the spiral direction is configured from non-ferrous metal having higher deformability than the metallic hoop material (3).

ПЛОСКАЯ ГРЕБЕНЧАТАЯ УПЛОТНИТЕЛЬНАЯ ПРОКЛАДКА С ДВУСТОРОННИМИ НАКЛАДКАМИ ДЛЯ ГЕРМЕТИЗАЦИИ РАЗЪЕМНЫХ ФЛАНЦЕВЫХ СОЕДИНЕНИЙ

Изобретение относится к уплотнительной технике. Плоская гребенчатая уплотнительная прокладка выполнена с двусторонними накладками для герметизации разъемных фланцевых соединений. Прокладка имеет две уплотнительные контактные поверхности, в которых выполнены концентрические V-образные пазы с углом раскрытия 90°. На обеих уплотнительных контактных поверхностях гребенчатой уплотнительной прокладки между пазами созданы концентрические поверхности постоянной ширины от 0,2 мм до 0,6 мм, а дно впадин концентрических пазов выполнено с закруглением радиусом 0,3-0,5 мм. Концентрические пазы в уплотнительных контактных поверхностях гребенчатой прокладки имеют меньший объем, чем объем уплотняющей пленки или уплотняющей пластины, которая перекрывает вершины крайних пазов в уплотнительных контактных поверхностях. Изобретение повышает надежность фланцевых соединений. 9 з.п. ф-лы, 9 ил.

УПЛОТНЕНИЕ ДЛЯ ЭЛЕКТРОЛИТИЧЕСКИХ РЕЗЕРВУАРОВ И ЭЛЕКТРОЛИТИЧЕСКИЙ РЕЗЕРВУАР, ВКЛЮЧАЮЩИЙ УПЛОТНЕНИЕ

Изобретение относится к уплотнению для электролизера, который включает: анод, катод и листовую разделительную пластину, которая разделяет анод и катод, где уплотнение для электролизера предназначено для удержания разделительной пластины. При этом электролизер включает: металлическую раму анода, имеющую форму картинной рамы, в центральной части которой имеется отверстие для создания анодной камеры; и металлическую раму катода, имеющую такую же форму, что и металлическая рама анода, в центральной части которой имеется отверстие для создания катодной камеры; при этом анод установлен в отверстии металлической рамы анода, катод установлен в отверстии металлической рамы катода, и уплотнение для электролизера плотно зафиксировано между металлической рамой анода и металлической рамой катода, уплотнение для электролизера включает одну тонколистовую раму, имеющую форму картинной рамы, форма которой приблизительно совпадает с формой металлической рамы анода и металлической рамы катода, тонколистовая ...

УПЛОТНЕНИЕ И СООТВЕТСТВУЮЩЕЕ СОЕДИНЕНИЕ

... 1. Герметическое соединение в замок, содержащеенормальный конец (4) первого элемента трубопровода, имеющий цилиндрическую наружную поверхность (7),конец с раструбом (8) второго элемента трубопровода исоставное уплотнение для герметического соединения в замок, расположенное между нормальным концом (4) и концом с раструбом (8), при этом конец с раструбом (8) содержит крепежную канавку (82), образованную поверхностью дна (92), расположенной практически параллельно центральной оси (Х-Х), и кольцевой лобовой поверхностью (90),при этом уплотнение содержиткольцо (24) из эластичного материала, расположенное по центральной оси (Х-Х), содержащее корпус (16), сжимаемое радиально между концом с раструбом (8) и нормальным концом (4) и содержащее крепежный буртик (18), размещаемый в крепежной канавке инесколько замковых вставок (20) из твердого материала, утопленных, по меньше мере, частично в крепежном буртике,причем каждая замковая вставка (20) содержит головку (30), обращенную радиально наружу, утопленную ...

DICHTUNG MIT METALLBEWEHRUNG

Fuer hohe Drucke und Temperaturen bestimmter Dichtungsring

Dichtung, insbesondere Flachdichtung aus Graphit

Die Erfindung betrifft eine Dichtung, insbesondere Flachdichtung aus Graphit mit einer Kohlenstoffbeschichtung, wobei die aus einer Graphit-Dichtungsplatte ausgestanzte oder ausgeschnittene Dichtung mit einer Kohlenstoffschicht, die aus einer harten diamantähnlichen Kohlenstoffschicht und aus einer, auf der harten diamantähnlichen Kohlenstoffschicht aufgebrachten, weichen und versiegelnden Kohlenstoffschicht besteht, beschichtet ist ...

Interface seal for a fuel cartridge

PRODUCTION OF SHEET MATERIAL FOR USE AS GASKETS

... 1362657 Coated sheet material TBA INDUSTRIAL PRODUCTS Ltd 3 Nov 1971 [20 Nov 1970] 55368/70 Heading B2E A process for producing a long length of composite sheet material comprising a metal core coated on both sides with a fibre-reinforced elastomeric material, wherein the coatings are applied to both sides of the metal core simultaneously by drawing the core through a nip between two rotating calender rolls by means of a tensioning device acting downstream of the calender rolls, the core being drawn at a speed equal to the surface speed of the calender rolls, feeding an uncured dough-like composition of fibre-reinforced elastomer to both sides of the core as it passes through the nip, the feeding and viscosity of the composition being controlled so that the coatings are spread evenly over both sides of the core and subsequently curing the coatings. Preferably the coated metal core is passed through an oven before being engaged by the tensioning device. After drying the core is preferably ...

EARTHING GASKETS

Breech block hanger support

The present invention relates to a breech block hanger support in a subsea wellhead assembly used in offshore wells having a working pressure of up to approximately 15,000 psi. The wellhead assembly includes a wellhead 24, the breech block hanger support 70, a packoff for sealing the breech block hanger support, and one or more other casing hangers supported by the breech block hanger support. The breech block hanger support 70 is landed and connected to the wellhead for suspending casing within the well, for supporting one or more of the other casing hangers and casing within the well, and for withstanding and containing the pressure load within the well. Breech block teeth 66, 76 are provided on the wellhead 24 and the breech block hanger support 70 to permit the hanger support to be stabbed into the wellhead and rotated less than 360 DEG for completing the connection therebetween. The breech block teeth include groupings of spaced-apart no-lead teeth having slots provided therebetween ...

Poetry, in particular for the sealing of between Gehäuseteilen of steam-heated valves existing columns

Cylinder head gasket with internal-combustion engines

GASKET WITH DEFORMATION LIMITER

BRENNKRAFTMASCHINE MIT EINEM MOTORGEHÄUSE UND ZUMINDEST EINER DARIN ANGEORDNETEN ZYLINDERLAUFBUCHSE

Internal combustion engine with a motor housing with a cylinder sleeve and a ring-shaped seal (4) between the motor housing and cylinder sleeve, where the seal comprises a first material adapted to a sealing surface at the motor housing and/or to the cylinder sleeve and a second different and elastic material for bracing (sic) the seal. - ...

REFRACTORY FIBER LADLE PREHEATER SEALING RINGS

A gasket for a heat-charged cavity of an appliance with microwave heating function

The present invention relates to a gasket (10) for a heat- charged cavity of an appliance with microwave heating function. The gasket (12) comprises a first gasket part (12), a second gasket part (14) and an interconnecting gasket part (16). The first gasket part (12), the second gasket part (14) and the interconnecting gasket part (16) are elongated and their longitudinal axes are arranged parallel to each other. The first gasket part (12) and the second gasket part (14) are impermeable for steam, vapour and/or humidity. The first gasket part (12) is made of an elastic material or a compound of elastic materials and is resistant against high temperatures. The second gasket part (14) is resistant against high temperatures and includes at least on electrically conductive material. The interconnecting gasket part (16) is resistant against high temperatures. The interconnecting gasket part (16) is permanently or removably connected to the first gasket part (12) at one side and to the second ...

COMBY TWO-SIDED OVERLAIN GASKET FOR SEALING OF DISMOUNTABLE FLANGED JOINTS

Comby two-sided overlain gasket (5, 13) for sealing of dismountable flanged joints, which comprises two sealing contact surfaces, in which there are created concentric grooves (8) in a shape of letter V with opening angle of 90°, while on both sealing contact surfaces of the comby gasket (5, 13) there are between the grooves (8) created concentric surfaces (Y) of a constant width from 0,2 mm to 0,6 mm, while the bottoms of the concentric grooves (8) are created by rounding (R) having radius of 0,3 mm to 0,5 mm.

FLANGE SEALING SYSTEM

A sealing element is provides a fluid tight seal between pipe end flanges of adjoining pipes in a flange sealing system. The sealing system also uses a centering ring surrounding and locating the sealing element relative to the pipe end flanges which is discontinuous in a circumferential direction of the centering ring between two ends of the centering ring which are disconnected from one another in a mounted position between the pipe end flanges so that the centering ring can be flexed to replace the sealing element therein upon removal from the pipe end flanges. The centering ring has an inner circumference in the form of a concave wedge-shaped edge and the sealing element has a wedge-shaped cross-section in the form of a convex wedge-shaped edge arranged to be received in the concave wedge-shaped edge of the centering ring.

ELASTOMERIC SEAL FORMED WITHOUT OVEN POST CURING AND METHOD OF FORMING AN ELASTOMERIC SEAL

An elastomeric seal (20), such as a shaft seal for automotive vehicle applications, includes an elastomeric compound (22) chemically coupled to a metal sealing ring (24) and is formed without an oven post curing step. The elastomeric seal (20) provides exceptional physical properties, similar to those of elastomeric seals of the prior art formed with an oven post curing step. The elastomeric seal (20) has an elastic modulus of 6.0 MPa to 13.0 MPa and a tensile strength of 11.1 MPa to 14.8 MPa. The elastomeric compound (22) includes 52.0 to 68.0 wt. % tluoroelastomer, 20.0 to 35.0 wt. % calcium silicate, and 5.0 to 15.0 wt. % diatomite. The elastomeric compound (22) is fully cured and chemically coupled to the metal sealing ring (24) during the compression or injection molding step without an oven post curing step. The invention is also related to a method of forming an elastomeric seal.

LOW LEAKAGE RATE COMPOSITE GASKET

The present invention relates to a gasket (1) comprising a first discrete component and a second discrete component, wherein the first and second components (20) extend along the length of the gasket (1). The second component (20) is arranged relative to the first component (10) so as to separate the first component (10) at least from one of the two sealing surfaces (2, 4). The first component (10) is relatively hard in at least the thickness direction of the gasket (1) and preferably incompressible and the second component (20) is relatively soft in at least the thickness direction of the gasket (1) and compressible. When the gasket is compressed between two flanges (101, 102), there is a limited region of high compression, because the first component (10) increases the pressure by which the second component (20) is compressed between the surfaces of the flanges. This yields a high leak tightness of the sealing at a relatively low force.

CYLINDER HEAD GASKET IMPROVES FOR THE INTERNAL COMBUSTION ENGINES

JOINT POUR ASSURER UNE ETANCHEITE COMBINEE VIS-A-VIS DE LA CHALEUR ET DES RADIATIONS HAUTE FREQUENCE DANS UN APPAREIL DE CUISSON A HAUTE FREQUENCE

JOINT POUR ASSURER UNE ETANCHEITE COMBINEE VIS-A-VIS DE LA CHALEUR ET DES RADIATIONS HAUTE FREQUENCE DANS UN APPAREIL DE CUISSON A HAUTE FREQUENCE. LE JOINT D'ETANCHEITE 19 SELON LA PRESENTE INVENTION EST DESTINE A ETRE PLACE SUR LE COTE INTERIEUR DE LA PORTE 6 D'UN FOUR HAUTE FREQUENCE. CE JOINT EST FORME PAR UN MELANGE ENTRELACE DE FIBRES RESISTANTES A LA CHALEUR ET EN UNE MATIERE DIELECTRIQUE MAUVAISE CONDUCTRICE DE LA CHALEUR, COMME PAR EXEMPLE LES FIBRES DE VERRE, ET DE FILS METALLIQUES FIBREUX EN UNE MATIERE RESISTANTE A LA CORROSION, COMME PAR EXEMPLE L'ACIER INOXYDABLE.

Waterproofing system

JOINT A CARACTERISTIQUES D'ETANCHEITE AMELIOREES ET PROCEDE DE FABRICATION DE CE JOINT

JOINT NOTAMMENT POUR MOTEUR A COMBUSTION INTERNE, DEFINISSANT UN CERTAIN NOMBRE D'OUVERTURES ET COMPORTANT AU MOINS DEUX COUCHES DE PORTEE16 FIXEES L'UNE A L'AUTRE. UNE CONFIGURATION D'ETANCHEITE30 EN MATERIAU ELASTOMERE, EN METAL OU ANALOGUE EST PLACEE ENTRE LES COUCHES DANS LESQUELLES ELLE SE TROUVE ENVELOPPEE, DE SORTE QU'ELLE NE SE TROUVE PAS EN CONTACT DIRECT AVEC LES SURFACES A SCELLER, CETTE CONFIGURATION D'ETANCHEITE ENTOURANT LES OUVERTURES24 DU JOINT. LES COUCHES SONT COLLEES L'UNE A L'AUTRE PAR ADHESIF ET SOUS PRESSION DANS LES ZONES18 QUI ENTOURENT ETROITEMENT LA CONFIGURATION D'ETANCHEITE, DE MANIERE A EVITER TOUT MOUVEMENT LATERAL DE CETTE DERNIERE. A CET ENDROIT, AU MOINS L'UNE DES COUCHES EST COMPRIMEE ET DENSIFIEE, CE QUI RENFORCE LES CARACTERISTIQUES D'ETANCHEITE DU JOINT.

JOINT DE CULASSE POUR MOTEURS A COMBUSTION INTERNE

Le joint est en caoutchouc ou en matière plastique et est moulé par injection sous pression. Il peut comporter des renforcements incorporés. La fabrication se fait en une seule opération et les chutes de découpage des ouvertures sont supprimées. On réalise une grande économie ...

JOINT DE CULASSE METALLIQUE POUR MOTEUR A COMBUSTION INTERNE

LE JOINT EST CONSTITUE D'UNE PLAQUE METALLIQUE AVEC DES OUVERTURES POINCONNEES POUR LES CHAMBRES DE COMBUSTION, LES GOUJONS DE FIXATION, LE LUBRIFIANT ET L'AGENT DE REFROIDISSEMENT, ET EST CARACTERISE EN CE QUE LA PLAQUE EN TOLE METALLIQUE 1 EST REPLIEE EN OURLET 6 AU MOINS AU VOISINAGE D'UNE OUVERTURE 2, 3, 4, 5, L'OURLET ENVELOPPANT UNE INCLUSION ANNULAIRE EN MATERIAU POLYMERIQUE. ON OBTIENT UN JOINT SANS AMIANTE AYANT DES PROPRIETES EQUIVALENTES AUX JOINTS EN AMIANTE DU POINT DE VUE DE LA SOUPLESSE.

CLOSURE MEMBER FOR A PIPE OR PRESSURE VESSEL AND GASKET THEREFOR

FLAT SEAL IN PARTICULAR CYLINDER HEAD SEAL

CYLINDER HEAD GASKET FOR INTERNAL COMBUSTION ENGINE

A CYLINDER HEAD SEAL

anel de pistão para motores de combustão interna, processo para obtenção de anel de pistão e motor de combustão interna

LIGHT-OPERATED CONTROL APPARATUS FOR A COMBUSTION ENGINE

Spherical annular seal member and method of manufacturing the same

A spherical annular seal member ( 1 ) has a seal body ( 4 ) in which a heat-resistant material ( 2 ) and a reinforcing member ( 3 ) made of a metal wire have been compressed to fill meshes of the metal wire net of the reinforcing member ( 3 ) with the heat-resistant material ( 2 ) such that the heat-resistant material ( 2 ) and the reinforcing member ( 3 ) are integrally formed in mixed form. The seal body ( 4 ) has a cylindrical inner peripheral surface ( 6 ) defining a through hole ( 5 ); an outer peripheral surface ( 10 ) constituted by a partially convex spherical surface ( 7 ); and annular end faces ( 8, 9 ) respectively provided on a large-diameter side and a small-diameter side of the partially convex spherical surface ( 7 ). In the seal body ( 4 ), the reinforcing member ( 3 ) and the heat-resistant material ( 2 ) are respectively contained at a rate of 15 to 80 wt. % and at a rate of 20 to 85 wt. %. The heat-resistant material ( 2 ) in the seal body ( 4 ) has a density of 1.20 ...

СПИРАЛЬНО-НАВИТАЯ УПЛОТНИТЕЛЬНАЯ ПРОКЛАДКА

Полезная модель относится к спирально-навитым уплотнительным прокладкам для различных уплотнительных узлов машин и оборудования. Спирально-навитая уплотнительная прокладка включает навитые по спиральной линии чередующиеся слои уплотнителя и металлической ленты W-образного профиля. Вершины профиля соединены участком ленты, выполненной в форме дуги, находящейся в пределах ширины профиля металлической ленты. Заявляемая конфигурация профиля спирально-навитой прокладки способствует увеличению ее сжимаемости и восстанавливаемости, что, в свою очередь, обеспечивает увеличение уплотнительной способности прокладки.

СПИРАЛЬНО-НАВИТАЯ УПЛОТНИТЕЛЬНАЯ ПРОКЛАДКА

Полезная модель относится к спирально-навитым уплотнительным прокладкам для различных уплотнительных узлов машин и оборудования. Спирально-навитая уплотнительная прокладка включает навитые по спирали слои уплотнителя и металлической ленты V-образного профиля. Края ленты, образующие V-образный профиль, выполнены под углом (1,0÷5,0)°, а центральные элементы профиля ленты выполнены в центральной части профиля в виде дуги с боковыми V-образными ветвями, сопряженными с краями профиля ленты. Края профиля ленты выполнены под углом к оси спирали, а концевые участки краевых участков профиля ленты выполнены параллельно оси спиральной линии, при этом длина концевых участков составляет от 5% до 10% от длины краев профиля ленты. Заявляемая конфигурация профиля спирально-навитой прокладки обеспечивает увеличение уплотнительной способности прокладки за счет направления уплотнителя ортогонально уплотняемым поверхностям.

СПИРАЛЬНО-НАВИТАЯ ПРОКЛАДКА И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Изобретение относится к уплотнениям фланцевых, штуцерных и иных соединений, в частности к спирально-навитым прокладкам, используемым в разъемах аппаратов теплообменного оборудования и трубопроводов, аппаратов нефтяной и газовой промышленности, химической промышленности, тепловой и атомной энергетики, выхлопных системах автомобильных, судовых и прочих двигателей внутреннего сгорания. Спирально-навитая прокладка содержит уплотнительное кольцо в виде навитой спирали из чередующихся слоев профилированной металлической ленты и наполнителя, при этом наполнитель выполнен в виде ленты из трехслойного ламината, состоящего из слоя армирующего металлического материала, на каждую из сторон которого приклеен слой неметаллического уплотнительного материала. Также описан способ изготовления спирально-навитой прокладки. В способе предварительно изготавливают наполнитель в виде ленты из трехслойного ламината, состоящего из слоя армирующего металлического материала, на каждую из сторон которого приклеен ...

СОСТАВНАЯ ПРОКЛАДКА И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

... 1. Способ изготовления составной прокладки, которая содержит стальные листы, каждый из которых имеет определенное электрическое сопротивление, и по меньшей мере один слой покрытия из материала, электрическое сопротивление которого выше чем сопротивление стальных листов, причем способ состоит из следующих операций: нанесение по меньшей мере одного слоя материала покрытия по меньшей мере на одну поверхность по меньшей мере одного из листов прокладки; сборка по меньшей мере одного слоя прокладки с покрытием и по меньшей мере одного другого слоя прокладки; сварка собранных вместе слоев для формирования составной прокладки. 2. Способ по п.1, в котором сварка собранных вместе слоев прокладки выполняется с помощью лазера. 3. Способ по п.2, в котором сварка собранных вместе слоев прокладки выполняется с помощью лазера YAG или СО2. 4. Способ по п.1, который дополнительно содержит шаг позиционирования слоев прокладки и по меньшей мере одного слоя покрытия, в результате которого слои прокладки и по ...

Материал для изготовления уплотнительных и теплоизолирующих элементов

Изобретение относится к многослойным материалам для изготовления уплотнительных и теплоизоляционных элементов. Изобретение позволяет упростить процесс изготовления материала и улучшить его уплотнительные свойства за счет использования в качестве наполнителя слоев материала расширенного графита или расширенного вермикулита, сланцевой муки или слюды и волокон из полиамида или целлюлозы. Композиция слоев содержит, мас.% : вулканизованный бутадиеннитрильный каучук 6, расширенный графит или вермикулит 0,5-25,0, сланцевую муку или слюду 55,0-79,5, волокна из полиамида или целлюлозы 14. Материал выполнен из полимерной или металлической основы и нанесенных с обеих сторон слоев указанного состава. 1 ил., 8 табл.

Dichtring mit 3D-Druck Inlay

Die Erfindung betrifft einen Dichtring (10), insbesondere einen Radialwellendichtring oder ein Stangendichtring, wie dieser zum Abdichten eines zwischen zwei Maschinenelementen (32, 36) angeordneten Dichtspalts (48) einsetzbar ist. Der Dichtring umfasst ein elastisch verformbares Polymermaterial (12) und einen Stützring (14), der zumindest abschnittsweise in dem Polymermaterial (12) formschlüssig eingebettet ist, wobei der Stützring (14) als ein 3D-Druckteil mit einem zumindest abschnittsweise mehrschichtigen Aufbau seines Materials ausgeführt ist und wobei das Material des Stützrings (14) ein größeres Modul aufweist, als das Polymermaterial (12).

LAMINIERTE METALLDICHTUNG.

CONDUCTIVE PTFE/GRAPHITE GASKET

A PTFE envelope earthing gasket is provided which has an insert 21 comprising graphite. In a preferred embodiment, the gasket 14 comprises an envelope 20 of polytetrafluoroethylene which defines a cavity therein. Within the cavity there is located an insert 21 which consists of semi-rigid laminated graphite material 22 with a thin nickel reinforcement layer 23 and a corrugated steel ring strengthener 24. An earthing tag 15 may be connected to the steel ring 24. The invention reduces static electricity problems in pipework and vessels. ...

Sealing arrangements

Oil scraper

SUBSEA WELLHEAD SYSTEM

INTERNAL COMBUSTION ENGINE

LIGHTNING STRIKE PROTECTION FOR AIRCRAFT STRUCTURES

Cylinder head gasket for internal combustion engines

A gasket is injection moulded from synthetic plastics material and includes combustion chamber openings 2, cooling water openings 3 and holes for coolant and fixing bolts. Openings 2 may be provided with an encircling bead 4a. Regions 9 and 10 are of fluoropolymer while the less highly stressed region 11 is of normal butyl rubber. In alternative embodiments the gasket may have metal or fabric reinforcement embedded therein. ...

A gasket material including a steel plate and a foamed rubber layer

The present invention relates to a gasket material including a steel plate and a foamed rubber layer formed on one or both sides of the steel plate. The foamed rubber layer is obtained from a rubber composition containing :NBR, H-NBR or functional group-modified NBR, as a rubber compound; and a crosslinking agent, the crosslinking agent comprising at least one selected from the group consisting of p-quinone dioxime, p, p' -dibenzoylguinone dioxime and poly-p-dinitrobenzene. The foamed rubber layer has a quinoid crosslinking structure.

Gasket material

A SEAL

FIRE RESISTANT SEALING RING COMBINATION

... 1441207 Pipe joints; joint making packing PRESSURE SCIENCE Inc 21 May 1974 [18 July 1973] 22742/74 Headings F2G and F2B A pipe joint comprises a pair of flanges 10, 11 held together by bolts (not shown) an annular cavity 12 being formed in the flange 10, the cavity 12 containing an elastomeric sealing ring 15, e.g. of rubber which provides a seal under normal conditions, a metallic ring 14 which is C- shaped in radial cross-section and disposed so that the arms of the C embrace a portion of the ring 15, and a further metallic ring 18 held adjacent the inner diameter of the ring as by compression or bonding, the arrangement being such under conditions of high temperature, e.g. in case of fire, the elastomeric ring 15 will be prevented from expanding inwardly by the ring 18 and will force the metallic ring 14 into tighter sealing engagement with the walls of the cavity 12, before it is finally burnt. In alternative embodiments the metallic ring may have the shape shown in Fig. 7, and indicated ...

Tax aggregate at internal-combustion engines for the release of operations - in particular the ignition

Bi-metal spiral wound gasket

A spiral wound gasket ( 20 ) is disposed between joint members ( 22, 24 ) of a hot fluid joint to seal a gap ( 48 ) therebetween. The spiral wound gasket ( 20 ) includes a first high temperature performance metallic strip ( 28 ) formed of a thermally conductive alloy, including, Ni Cr, and Fe, spirally wound around a central axis (A) to present a first high temperature performance metallic winding ( 30 ) exposed to hot fluids. A first non-metallic filler strip ( 32 ) formed of a mica material is spirally wound outwardly of the first high temperature performance metallic winding ( 30 ) to form a first non-metallic filler winding ( 34 ). A second high temperature performance metallic strip ( 36 ) formed of a stainless steel material is spirally wound outwardly of the first non-metallic filler winding ( 34 ). A second non-metallic filler strip ( 40 ) formed of a graphite material is spirally wound outwardly of the second high temperature performance metallic winding ( 38 ).

Sealing reducing washer

A sealing reducing washer is formed from a metallic reducing washer having a front surface, a rear surface, an outer periphery, and an inner periphery with a pliable rim secured over the outer periphery of the metallic reducing washer, a portion of the rim circumferentially depending below the rear surface of the metallic reducing washer adjacent the outer periphery of the metallic reducing washer so as to form a weathertight seal against a surface of an electrical enclosure when the sealing reducing washer is secured to the enclosure, and a pliable toroid circumferentially positioned adjacent the inner periphery of the metallic reducing washer and extending circumferentially above the front surface of the metallic reducing washer in the region adjacent the inner periphery of the metallic reducing washer, the toroid dimensioned to form a weathertight seal with an electrical conduit or raceway.

Gasket and Seal Structure

A gasket and a gasket seal structure in which the gasket is adapted to be inserted into a cutout recess part formed on a wall part of a box-shaped member with an opening part on at least one surface, the cutout recess part communicating with the opening part. The gasket and the structure thereof are characterized by the followings; the cutout recess part has a chamfered surface at the corner part on the opening part side; the gasket comprises an exterior rubber part having a seal surface part elastically contacting the cutout recess part and a core body having higher rigidity than that of the exterior rubber part and covered with the exterior rubber part; and the seal surface part has at a region corresponding to the corner part on the opening part side of the cutout recess part a projecting part formed along the corner part on the opening part side and projecting toward the corner part on the opening part side of the cutout recess part.

Rubber gasket and seal structure using the same

A rubber gasket of annular shape adapted to be interposed between two objective members to be sealed and fastened to each other and a seal structure for sealing between two objective members to be sealed and fastened to each other using the gasket. The rubber gasket comprises an integrally molded body made of elastomer having a cylindrical body, a flange-shaped portion, and an annular core member, the flange-shaped potion extending outward from one end of the cylindrical body in axial direction along an entire outer circumferential surface, the annular core member being embedded in the flange-shaped portion along an entire circumference. The rubber gasket is constructed such that when the two objective members to be sealed are fastened with the rubber gasket interposed therebetween, both ends of the cylindrical body in axial direction thereof are positioned respectively at seal line portions of the two objective members to be sealed, and the cylindrical body is compressed by fastening force along fastening direction.

SPHERICAL ANNULAR SEAL MEMBER AND METHOD OF MANUFACTURING THE SAME

In a spherical annular seal member a spherical annular base member is constructed so as to be provided with structural integrity as a heat-resistant material and a reinforcing member are compressed to each other and intertwined with each other. In an outer layer the heat-resistant material a sintered solid lubricant constituted by a lubricating composition, and the reinforcing member made from a metal wire net are compressed such that the sintered solid lubricant and the heat-resistant material are filled in meshes of the metal wire net of the reinforcing member and the solid lubricant, the heat-resistant material and the reinforcing member are integrated in mixed form, an outer surface of that outer layer being thus formed into a smooth surface in which a surface constituted by the reinforcing member and a surface constituted by the sintered solid lubricant are present in mixed form. 1. A spherical annular seal member for use in an exhaust pipe joint , comprising: a spherical annular base member defined by a cylindrical inner surface , a partially convex spherical surface , and large- and small-diameter side annular end faces of said partially convex spherical surface; and an outer layer formed integrally on said partially convex spherical surface of said spherical annular base member , wherein said spherical annular base member includes a reinforcing member made from a metal wire net and a heat-resistant material containing expanded graphite and compressed in such a manner as to fill meshes of the metal wire net of said reinforcing member and to be integrated with said reinforcing member in mixed form , and wherein , in said outer layer , a heat-resistant material containing expanded graphite , a sintered solid lubricant of a lubricating composition containing 23 to 75% by mass of hexagonal boron nitride and 23 to 75% by mass of a molten fluorocarbon resin , and a reinforcing member made from a metal wire net are compressed such that said solid lubricant and said ...

SEAL MEMBER, ETCHING APPARATUS, AND A METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE

Provided is a seal member according to embodiments. The seal member is disposed between an upper electrode and a backing plate in an etching apparatus to seal a gap between the upper electrode and the backing plate. In addition, the seal member is configured to include a high heat conductivity member having a heat conductivity higher than that of a first member formed by using siloxane bond and a low resistance member having a resistivity lower than that of the first member. 1. A seal member disposed between an upper electrode and a backing plate in an etching apparatus to seal a gap between the upper electrode and the backing plate , the seal member comprising:a high heat conductivity member having a heat conductivity higher than that of a first member formed by using siloxane bond; anda low resistance member having a resistivity lower than that of the first member.2. The seal member according to claim 1 , wherein a first layer including the high heat conductivity member and the low resistance member claim 1 , a second layer including the high heat conductivity member and the low resistance member claim 1 , and an aluminum thin film layer interposed. between the first layer and the second layer are disposed between the upper electrode and the backing plate.3. The seal member according to claim 1 , wherein the high heat conductivity member and the low resistance member have ring-shaped principal planes which are disposed in a concentric shape.4. The seal member according to claim 3 , further comprising a first corrosion-resistance member claim 3 ,wherein the first corrosion-resistance member is disposed in the ring-shaped outermost circumference area.5. The seal member according to claim 1 , further comprising a second corrosion-resistance member claim 1 ,wherein the second corrosion-resistance member is disposed in an area which is in contact with a clamp groove installed in the backing plate.6. The seal member according to claim 1 , wherein the high heat ...

A Gasket

Gaskets for sealing two mating surfaces are described. The gaskets have an outer portion including a core between two sealing layers and an inner portion made of a deformable material and located in an aperture in the outer portion. The thickness of the inner portion is greater than the thickness of the outer portion. The inner portion may include a chemical treatment agent that can provide chemical protection to the mating surfaces. Methods of producing the gaskets and methods of using the gaskets for sealing joints, including corroded joints, are also described.

Downhole elastomeric components including barrier coatings

An apparatus for performing a downhole operation includes: a carrier configured to be disposed in a borehole in an earth formation; and a deformable component configured to be disposed in the borehole, the deformable component including an elastomeric material and a barrier coating disposed on a surface of the elastomeric material, the barrier coating having properties configured to resist permeation of downhole gases into the elastomeric material at downhole temperatures.

METAL GASKET

A metal gasket () installed between a cylinder head and a cylinder block comprises at least one metal substrate () coated with a sealant () on its outer surface, and including a full bead () for cylinder bore hole sealing and a half bead () for liquid hole sealing. The half bead () includes: an inclined plate portion () connected to a flat substrate body () of the metal substrate () through a first bend portion () and inclined with respect to the substrate body (); and an edge plate portion () connected to the inclined plate portion () through a second bend portion () and inclined with respect to the inclined plate portion (). A radius at a convex surface of the first bend portion () and a radius at a concave surface of the second bend portion () are in a range of 2.0 mm to 3.5 mm. 1. A metal gasket configured to be installed between a cylinder head and a cylinder block , the metal gasket comprisingat least one metal substrate coated with a sealant on an outer surface thereof, and including a full bead for cylinder bore hole sealing and a half bead for liquid hole sealing,wherein the half bead includes:an inclined plate portion connected to a flat substrate body of the metal substrate through a first bend portion and inclined with respect to the substrate body; andan edge plate portion connected to the inclined plate portion through a second bend portion and inclined with respect to the inclined plate portion, anda radius at a convex surface of the first bend portion and a radius at a concave surface of the second bend portion are each in a range of 2.0 mm to 3.5 mm.2. The metal gasket according to claim 1 , wherein a height of the half bead is in a range of 0.35 mm to 0.85 mm.3. The metal gasket according to claim 2 , wherein a width of the half bead is in a range of 1.2 mm to 1.8 mm. The present disclosure relates to a metal gasket that is installed between a cylinder block and a cylinder head of an internal combustion engine (engine) to prevent leakage of ...

SEALING MEMBER FOR GASKET, AND GASKET COMPRISING SAME

A gasket is disposed between pipe flanges to prevent leakage. 1. An insulating gasket comprising:a central layer; anda first layer and a second layer respectively provided on an upper surface and a lower surface of the central layer,wherein the first layer includes a first groove, the second layer includes a second groove, and a sealing device is disposed in each of the first groove and the second groove,wherein the sealing device which is in the form of a stripe and comprises a C-ring portion at an inner end thereof, the C-ring portion being open in an inner direction,wherein the C-ring portion is formed of a resilient material and be capable to be stretched out or contracted,wherein the sealing device includes an outer lower end having a first outwardly cut portion which is cut in the inner direction, andwherein inner sidewalls of each of the first and second grooves and an inner end of the sealing device are spaced a certain distance from each other in order to be physically insulated from each other.2. The insulating gasket of claim 1 , wherein a lower end of the C-ring portion is fixed claim 1 , and an upper end thereof is stretchable or contractible.3. The insulating gasket of claim 1 , further comprising a spring portion which is in the form of a stripe and is configured to be accommodated in the C-ring portion.4. The insulating gasket of claim 1 , wherein an outer upper surface of the sealing device is in a corrugated form claim 1 , and an upper side of which is rounded.5. The insulating gasket of claim 4 , further comprising a first anti-abrasion layer which is in the form of a stripe and is provided on an upper side of the outer upper surface of the sealing device.6. The insulating gasket of claim 1 , wherein an outer lower end of the sealing device comprises a first inwardly cut portion which is cut in the inner direction.7. (canceled)8. (canceled)9. The insulating gasket of claim 1 , wherein the first layer and the second layer are formed of electrically ...

Active sealing ring, in particular for an auto coupling

A sealing ring provides a fluid seal between a first flange and a second flange. The sealing ring forms a tubular element and includes a tapering wall member defining an interior funnel-shaped through-going opening extending axially and tapering from a proximal end to a distal end. The tapering wall member is made from a resilient material proving an axial deflection of the tapering wall member when exposed to an axial force.

Exhaust pipe spherical joint

In an exhaust pipe spherical joint X, a spherical annular seal member 36 is fitted and fixed to a pipe end portion 42 , the spherical annular seal member 36 is seated by abutting against a flange 43 , a flared portion 47 formed of an Fe—Cr base stainless steel and containing 17.00 to 19.00% by mass of Cr is secured to a downstream-side exhaust pipe 44 , and an inner surface 48 of a concave spherical surface portion 45 is brought into slidable contact with a composite surface 40 in which a surface 38 constituted by a reinforcing member 5 and a surface 39 constituted by a solid lubricant are present in mixed form in an outer surface 37 of an outer layer 35 of the spherical annular seal member 36.

Seal material for analyzer, and flow cell, detector, and analyzer using the same

Provided is a seal material having high rigidity without deformation or breakage, excellent corrosion resistance to fluid, and low solubility when used under high sealing force, and to provide a flow cell, a detector, and an analyzer in which there is no fluid leakage, contamination of the seal material components is prevented, and the replacement frequency is low. Provided are a seal material for an analyzer, including a resin and at least one layer of fiber sheet embedded in the resin, wherein the at least one layer of fiber sheet is embedded between and in substantially parallel to two seal surfaces: a first seal surface, which is one resin surface of the seal material; and a second seal surface, which is the other resin surface substantially parallel to the former one, and a flow cell, a detector, and an analyzer using the seal material.

SEALING APPARATUS

The present invention concerns a composite sealing component. The composite sealing component has a plurality of planar sealing elements one or more of sealing elements having a higher compressibility than adjacent sealing elements of relatively low compressibility. The sealing elements of relative low compressibility are configured to maintain a fixed spacing to limit compression of the one or more sealing elements of relatively high compressibility provided therebetween. 1. A composite sealing component comprising:a plurality of planar sealing elements, one or more of sealing elements having a higher compressibility than adjacent sealing elements of relatively low compressibility;wherein the sealing elements of relative low compressibility are configured to maintain a fixed spacing to limit compression of the one or more sealing elements of relatively high compressibility provided therebetween.2. The composite sealing component according to claim 1 , wherein the sealing elements of relative low compressibility take the form of a series of flanges claim 1 , between which the sealing elements of relative high compressibility are provided.3. The composite sealing component according to claim 1 , wherein the sealing elements of relative low compressibility are formed by machining circumferential slots into the periphery of a solid ring to define said series of flanges.4. The composite sealing component according to claim 1 , wherein a plurality of sealing elements of relative low compressibility are coupled together claim 1 , one or more of the facing surfaces of the sealing elements of relative low compressibility being profiled to define said spacing there-between.5. The composite sealing component according to claim 4 , wherein certain of the sealing elements of relative low compressibility have a stepped profile to define slots for housing said sealing elements of relative high compressibility.6. The composite sealing component according to claim 1 , wherein ...

SPIRAL WOUND GASKET

Provided is a spiral wound gasket that has improved conformability and that is capable of exhibiting sufficient sealability for flanges provided at joints, irrespective of the state of a gap between the flanges. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound and integrated so as to have an opening at the center, 2. The spiral wound gasket of claim 1 , wherein the bending angle α of the hoop member at the bent portion is 80° to 140°.3. The spiral wound gasket of claim 1 , wherein the radius of curvature r of the hoop member at the bent portion is 0.2 mm to 1.2 mm.4. The spiral wound gasket of claim 1 , wherein the hoop member is composed of stainless steel claim 1 , and the filler member has a density of 1 g/cmto 1.2 g/cmand is composed of expanded graphite.5. The spiral wound gasket of claim 1 , wherein the spiral wound gasket as a whole has a density of 2.1 g/cmto 2.4 g/cm.6. The spiral wound gasket of claim 1 , wherein when the spiral wound gasket is compressed with a surface pressure of 10 MPa claim 1 , a bending angle α′ of the hoop member at the bent portion that is compressed is 40° to 120° claim 1 , and a radius of curvature r′ of the hoop member at the compressed bent portion is 0.1 mm to 0.6 mm.7. The spiral wound gasket of claim 2 , wherein the radius of curvature r of the hoop member at the bent portion is 0.2 mm to 1.2 mm.8. The spiral wound gasket of claim 2 , wherein the hoop member is composed of stainless steel claim 2 , and the filler member has a density of 1 g/cmto 1.2 g/cmand is composed of expanded graphite.9. The spiral wound gasket of claim 3 , wherein the hoop member is composed of stainless steel claim 3 , and the filler member has a density of 1 g/cmto 1.2 g/cmand is composed of expanded graphite. 1. Field of the InventionThe present invention relates to a spiral wound gasket, and more particularly relates to a spiral wound gasket with improved sealability ...

SPIRAL WOUND GASKET

Provided is a spiral wound gasket that makes it less likely that gaps that are in communication with each other in a spiral shape will remain between layers of a filler member exposed at a gasket face in a state before the gasket is clamped and that is capable of exhibiting sufficient sealability for flanges provided at pipe joints. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound around an opening and integrated, and which has gasket faces at respective end portions, wherein, at each of the gasket faces, an end portion of the filler member protrudes past an end portion of the hoop member, and the gasket faces have a surface roughness Rof 30 μm to 200 μm. 1. A spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound around an opening and integrated , and which has gasket faces at respective end portions , wherein , at each of the gasket faces , an end portion of the filler member protrudes past an end portion of the hoop member , and the gasket faces have a surface roughness Rof 30 μm to 200 μM. The present invention relates to a spiral wound gasket, and more particularly relates to a spiral wound gasket with improved sealability at pipe joints.Spiral wound gaskets are known in which a hoop member made of metal and formed into a V- or W-shape in cross section and a filler member made of inorganic paper mainly composed of rock wool, ceramic fiber, or the like are laid one on top of the other and wound together (see Japanese Examined Utility Model Publication No. H6-000693 and Japanese Laid-Open Patent Publication No. H10-141503, for example). Such spiral wound gaskets are used as materials (sealing materials) for achieving sealability (e.g., airtightness or liquid-tightness) at pipe joints of various types of piping.Here, generally, a material that is wider than the hoop member is used as the filler member that constitutes a spiral wound ...

SWIVEL JOINT FOR OILFIELD PUMPING STIMULATION

A swivel joint includes a tubular female member which is rotatably connected to a tubular male member. The female member includes a female race portion having an axially extending inner annular recess, a female inner end portion which is formed at an axially inner end of the recess, and a number of inner annular grooves which are formed in the recess coaxially therewith. The male member includes a male race portion having an annular outer surface which is configured to be received in the recess, a male nose portion which is formed at an end of the male race portion, and a number of outer annular grooves which are formed on the outer surface coaxially therewith. The male race portion is positioned in the female race portion such that the male nose portion is located adjacent the female inner end portion and each outer groove is aligned with a corresponding inner groove to thereby define a number of annular bearing races within which a plurality of balls are received to thereby rotatably connect the male member to the female member. A first primary seal is positioned between the male nose portion and the female inner end portion, and a second seal is positioned between the male nose portion and the female inner end portion radially outwardly of the first primary seal. The male nose portion comprises an end wall which extends radially outwardly from the flow bore and a conical side wall which extends both radially and axially outwardly relative to the cylindrical side wall, and the second seal comprises at least a first portion which sealingly engages the conical side wall. 1. A swivel joint comprising:a tubular female member which includes a female race portion having an axially extending inner annular recess, a female inner end portion which is formed at an axially inner end of the recess, and a number of inner annular grooves which are formed in the recess coaxially therewith;a tubular male member which includes a male race portion having an annular outer surface ...

GASKET WITH AN ANTI-FRET COATING

A gasket for a combustion chamber is provided. The gasket comprises an upper assembly including an upper combustion sealing section with a raised bead positioned between a first component and a second component adjacent to a combustion chamber and an upper fluid sealing section positioned between the first component and the second component at a location spaced away from the combustion chamber. The upper combustion sealing section includes an anti-fret coating on a metal layer, the upper fluid sealing section includes a synthetic rubber coating on a metal layer, and the upper combustion sealing section is greater in thickness than the upper fluid sealing section. 1. A gasket comprising: an upper combustion sealing section with a raised bead configured to be positioned between a first component and a second component and adjacent to a combustion chamber; and', 'an upper fluid sealing section configured to be positioned between the first component and the second component at a location spaced away from the combustion chamber;', 'wherein the upper combustion sealing section includes an anti-fret coating on a metal layer;', 'wherein the upper fluid sealing section includes a synthetic rubber coating on a metal layer; and', 'wherein the upper combustion sealing section is greater in thickness than the upper fluid sealing section., 'an upper assembly including2. The gasket of claim 1 , wherein a stepped interface is formed at adjoining edges of the upper combustion sealing section and the upper fluid sealing section.3. The gasket of claim 1 , wherein the anti-fret coating includes a plating comprising one or more of nickel and polytetrafluoroethylene (PTFE).4. The gasket of claim 1 , wherein the anti-fret coating includes a ceramic material with one or more of a molybdenum disulfide additive claim 1 , a boron additive claim 1 , and a polytetrafluoroethylene (PTFE) additive.5. The gasket of claim 1 , wherein the anti-fret coating includes a polymer with one or more of a ...

Gasket

A gasket in which a high sealing property can be certainly ensured is provided. A gasket 1 is to be interposed between a first flange 21 of a first exhaust pipe 11 and a second flange 22 of a second exhaust pipe 12 in a state where the gasket is fitted onto an end portion of the first exhaust pipe, in order to seal a gap between end portions of the first and second exhaust pipes 11, 12. The gasket 1 includes a first sealing portion 51 and a second sealing portion 52. The first sealing portion has a first butting surface 51 a having a tapered shape corresponding to a tapered shape of a first tapered inner circumferential surface 27 a of the first flange, and a first projecting portion 51 b. The first sealing portion is formed in a radially outer side of the gasket. The second sealing portion has a second butting surface 52 a having a tapered shape corresponding to a tapered shape of a second tapered inner circumferential surface of the second flange, and a second projecting portion 52 b. The second sealing portion is formed in a radially outer side of the gasket.

HEAT-RESISTANT GASKET

A heat-resistant gasket is provided with a first coating plate in which an annularly continuous emboss portion is formed and which is made of metal, a second coating plate which is arranged so as to face to the first coating plate in a thickness direction and is brought into close contact with a convex surface of the emboss portion, in which end portions in an inner peripheral side of the emboss portion are connected in a state of being in close contact with and lapped over the first coating plate and which is made of metal, and an expanded graphite core which is pinched between the first coating plate and the second coating plate, in a portion between the emboss portion and the overlapped portion of the end portions. Therefore, excellent sealing performance can be maintained even under a high-temperature environment while preventing stress relaxation due to heat. 1. A heat-resistant gasket comprising:a first coating plate in which an annularly continuous emboss portion is formed and which is made of metal;a second coating plate which is arranged so as to face to the first coating plate in a thickness direction and is brought into close contact with a convex surface of said emboss portion, in which end portions in an inner peripheral side or an outer peripheral side of said emboss portion are connected in a state of being in close contact with and lapped over said first coating plate and which is made of metal;a core which is pinched between said first coating plate and the second coating plate, in a portion between said emboss portion and said end portion and is made of expanded graphite; anda compression restricting plate which is interposed between said first coating plate and said second coating plate and on an opposite side to said expanded graphite as seen from said emboss portion and prevents over compression of said expanded graphite.2. (canceled)3. The heat-resistant gasket according to claim 1 , wherein a core member made of a metal is laminated with the ...

METHOD OF PRODUCING GASKET AND GASKET

A method of producing a gasket in which burrs can be prevented from being formed, and a mold failure can be suppressed, and a gasket are provided. A method of producing a gasket includes: a step S of preparing a metal mesh member and expanded graphite; a step S of placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed; a step S of adjusting the shapes of longitudinal end portions of the composite body in a manner that, in the short-side direction of the composite body, the width dimensions of the longitudinal end portions of the composite body are smaller than the width dimension of a longitudinal middle portion of the composite body; a step S of spirally winding the composite body in a manner that a tubular body in a multiply wound state in which an axial direction coincides with the short-side direction of the composite body is formed; and a step S of compress molding the tubular body in the axial direction of the tubular body. 1. A method of producing a gasket configured by using a metal mesh member and expanded graphite , wherein the method has steps of:preparing the metal mesh member and the expanded graphite;placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed;adjusting shapes of longitudinal end portions of the composite body in such a manner that, in a short-side direction of the composite body, width dimensions of the longitudinal end portions of the composite body are smaller than a width dimension of a longitudinal middle portion of the composite body;spirally winding the composite body in a manner that a tubular body in a multiply wound state in which an axial direction coincides with the short-side direction of the composite body is formed; andcompress molding the tubular body in an axial ...

GASKET AND METHOD OF PRODUCING GASKET

A gasket in which a high sealing property can be ensured, and a method of producing such a gasket are provided. A gasket is produced by spirally winding a belt-like composite body having a metal mesh member and expanded graphite enveloped by the metal mesh member, and then compression molding the composite body into a tubular shape. The gasket includes a first sealing portion placed in one axial end portion, and a second sealing portion placed in the other axial end portion. 1. A gasket which is configured by spirally winding a belt-like composite body having a metal mesh member and expanded graphite enveloped by the metal mesh member , and then compression molding the composite body into a tubular shape , whereinthe gasket includes a first sealing portion placed in one axial end portion, and a second sealing portion placed in another axial end portion, and has a sectional shape in which the composite body that is in a bent state overlaps in a radial direction, andthe composite body includes a bent portion which is radially bent in an acute angle shape.2. The gasket according to claim 1 , wherein the sectional shape is formed by compression molding the composite body to enable the first sealing portion to have a first sealing surface which is tapered toward one axial end surface claim 1 , and the second sealing portion to have a second sealing surface which is tapered toward another axial end surface.3. A method of producing the gasket according to claim 1 , wherein the method has steps of:preparing the metal mesh member and the expanded graphite;placing the metal mesh member around the expanded graphite in a manner that a long belt-like composite body in which the expanded graphite is enveloped by the metal mesh member is formed;adjusting shapes of longitudinal end portions of the composite body in such a manner that, in a short-side direction of the composite body, width dimensions of the longitudinal end portions of the composite body are smaller than a width ...

Gasket and sealing device

A gasket includes an annular gasket base and an outer circumferential seal that adheres along an outer circumferential edge portion of the gasket base. The outer circumferential seal includes a sandwiched portion that is sandwiched between opposing end surfaces of two members together with the gasket base, and a bulging rim portion that bulges outwards from outer surfaces of the two members over the whole circumferences of the outer surfaces, when the gasket base is sandwiched between the opposing end surfaces of the two members.

METHODS AND DEVICES FOR CUTTING COMPOSITE MATERIAL AND SEALING DEVICES MADE OF COMPOSITE MATERIAL

Then invention relates to seals, methods for making seals and devices for making seals wherein the seals comprise a rigid substrate with two substantially parallel major surfaces () wherein said surfaces are separated by a cut surface (). The cut surface () comprises a first burnished region () of height p1 and a second burnished region () of height p2 wherein said first and second burnished regions are separated by a rough breakout () of height b. 116.-. (canceled)17106108110119121123. Stamped sealing device comprising a rigid substrate with two substantially parallel major surfaces ( , ) characterized that in said major surfaces are separated by two substantially parallel cut surfaces , wherein each said cut surface () comprises a first burnished region () of height p1 and a second burnished region () of height p2 wherein said first and second burnished regions are separated by a rough breakout () of height b.18. Sealing device according to wherein the height b of said rough breakout is equal to or less than 0.2 mm claim 17 , more preferably equal to or less than 0.03 mm and most preferably equal to or less than 0.01 mm.19. Sealing device according to characterised in that said substrate is covered on at least one of said major surfaces with a resilient material.20. Sealing device according to characterised in that said substrate is covered on both of said major surfaces with a resilient material.21. Sealing device according to characterised in that said two parallel cut surfaces are perpendicular to said two major surfaces.22. Sealing device according to characterised in that said cut surfaces are separated by a distance which is greater than claim 17 , or equal to claim 17 , 1.0 mm and which is less than claim 17 , or equal to claim 17 , 5 mm.23. Sealing device according to characterised in that said cut surfaces are separated by a distance which is greater than claim 17 , or equal to claim 17 , 1.1 mm and which is less than claim 17 , or equal to claim 17 , 4 ...

SEAL FOR PRESSURIZED FLUID AND OPEN INTERFACE GAP

A seal is adapted to be received in an annular groove in a first member and is compressed against a groove bottom by a second member that defines a gap between the first and second members. The seal includes a reinforcement member and an elastomer body over-molded on the reinforcement member. The reinforcement member is disposed on an outboard side of the elastomer body and the elastomer body extends both above and below the reinforcement member. The compression of the seal causes the elastomer body to deform such that the reinforcement member provides a reinforcement substantially along the entire gap to prevent the elastomer body of the seal from being extruded through the gap. 1. A seal system comprising:a first member defining a groove in a first surface, said groove having a depth in a direction perpendicular to the first surface and a width in a direction parallel to the first surface;a second member including a second surface opposing the first surface with a joint gap between the first surface and the second surface; anda seal is adapted to be received in the groove in the first member and is compressed against a groove bottom by the second member, the seal includes a reinforcement member and an elastomer body over-molded on the reinforcement member, the reinforcement member is disposed on an outboard side of the elastomer body and the elastomer body extends both above and below the reinforcement member, the compression of the seal between the first and second members causes the elastomer body to deform such that the reinforcement member provides a reinforcement of the elastomer body substantially along the entire gap to prevent the elastomer body of the seal from being extruded through the gap.2. The seal system according to claim 1 , wherein the elastomer body includes an upper portion that extends above an upper surface of the reinforcement member and is laterally inwardly offset relative to the upper surface of the reinforcement member.3. The seal system ...

POLYUREA GASKET AND GASKET TAPE AND A METHOD OF MAKING AND USING THE SAME

A gasket or tape material for sealing between two members. The gasket or tape material, in one embodiment, includes a skeletal member and/or metallic and/or non-metallic particles. Enclosing the skeletal member and/or particles is a flexible, compressible resilient polyurea body member having a tacky outer surface, the tacky outer surface for engagement between the two members. The resilient body may be comprised of polyurea. The skeletal member may be comprised of a metallic or a non-metallic material, woven or non-woven metallic or non-metallic. 1. A gasket or tape for sealing between two members , the two members under compression and being two parts of an aircraft , the gasket material comprising:a flexible skeletal member; anda flexible, deformable, elastomeric resilient polyurea body member having a tacky outer surface, the body member for substantially enclosing the skeletal member with a self-curing mix of an isocynate component and an amine terminated component, the resilient body member having a tacky top surface and a tacky bottom surface.2. The gasket or tape of claim 1 , wherein the body has a peel strength between about 2 and 7 pounds/inch width.3. The gasket or tape of claim 1 , wherein the mix has a pre-cured viscosity claim 1 , when coming out of the nozzle of an applicator of between about 200 and 4500 Cps.4. The gasket or tape of claim 1 , wherein the body has a hardness after curing of between about 40 and 150 (37.5 gram half cone penetrometer).5. The gasket or tape of claim 1 , wherein the body is free from volatile organic compounds (VOC's) and solvents.6. The gasket or tape of claim 1 , wherein the self-curing mix will cure between about 3 and 11 minutes.7. The gasket or tape of claim 1 , wherein the skeleton member is a mesh.8. The gasket or tape of claim 7 , wherein the mesh is non-metal.9. The gasket or tape of claim 7 , wherein the mesh is metal.10. The gasket or tape of claim 1 , wherein skeletal member is a metallic or non-metallic open ...

Flexible Circuits for Use with Gaskets in Electronic Equipment and Related Systems and Meters

Systems for reducing leakage at a pressure barrier in a gas meter, are provided including first and second gaskets; a flexible circuit having variable thicknesses, such that a thicker portion of the flexible circuit is provided between the first and second gaskets; and a mounting plate on the flexible circuit, the mounting plate compressing the flexible circuit between the first and second gaskets on a non-pressurized side of the pressure barrier of the gas meter. Related flexible circuits and gas meters are also provided. 1. A system for reducing leakage at a pressure barrier in a meter , the system comprising:first and second gaskets;a flexible circuit having variable thicknesses, such that a thicker portion of the flexible circuit is provided between the first and second gaskets; anda mounting Plate on the flexible circuit, the mounting plate compressing the flexible circuit between the first and second gaskets on a non-pressurized side of the pressure harrier of the meter.2. The system of :wherein the flexible circuit comprises first and second thicknesses, the first thickness being less than the second thickness;wherein a portion of the flexible circuit having the second thickness is compressed between the first and second gaskets; andwherein an outer edge of the portion of the flexible circuit having, the second thickness is free of at least adhesive and solder mask.3. The system of :wherein a thickness of the flexible circuit tapers from a largest thickness to a smallest thickness, the largest thickness being less than the smallest thickness;wherein a portion of the flexible circuit having the largest thickness is compressed between the first and second gaskets; andwherein an outer edge of the portion of the flexible circuit having the largest thickness is free of at least adhesive and solder mask.4. The system of claim 1 , wherein provision of the thicker portion of the flexible circuit between the first and second gaskets provides a substantially reduced ...

GASKET

The invention provides a gasket having sealing lips in axial both ends of a gasket body in which a reinforcing ring is embedded. The gasket, has a structure in which the gasket body is displaced to the one axial side within the mounting groove when pressure acts on the gasket because the rigidity of a second sealing lip is set to be higher than the rigidity of a first sealing lip or a reinforcing ring is disposed closer to the one axial side within the gasket body. Furthermore, a seal bead which is brought into close contact to the bottom surface of the mounting groove when mounted is provided in the gasket body and a space portion surrounded by the second sealing lip, the seal bead, and the bottom surface and the other side surface of the mounting groove when mounted is provided. 1. A gasket , which is mounted to a gasket mounting groove which is opened radially inward or radially outward and has a bottom surface and a pair of axial side surfaces to seal pressure , the gasket comprising:a gasket body in which a reinforcing ring is embedded;a first sealing lip which is provided in an end portion of one axial side of the gasket body and is brought into close contact to one side surface of the mounting groove when mounted; anda second sealing lip which is provided in an end portion of another axial side of the gasket body and is brought into close contact to another side surface of the mounting groove when mounted,the gasket having a structure in which the gasket body is displaced to the one axial side within the mounting groove when pressure acts on the gasket because rigidity of the second sealing lip is set to be higher than rigidity of the first sealing lip or the reinforcing ring is disposed closer to the one axial side within the gasket body,wherein a seal bead which is brought into close contact to the bottom surface of the mounting groove when mounted is provided in the gasket body, anda space portion surrounded by the second sealing lip, the seal bead, and ...

Face Seal Fitting Having a Polyimide Sealing Component for Facilitating a Face Seal

A face seal fitting operable to join first and second conduits together and to provide a face seal, the face seal fitting comprising a body comprising a fluid passageway, and a coupling portion having an end defining a mating face; a gland comprising a fluid passageway, and an end having a mating face operable to be seated against the mating face of the body; a polyimide sealing component configured to be situated between the body and the gland; and a compression nut fittable over the gland and coupleable to the body, the compression nut being operable, upon torqueing to achieve a threshold compression load, to cause the mating face of the gland to seat against the mating face of the body, and to compress and elastically deform the polyimide sealing component to be flush with the mating faces of the body and the gland to form a face seal.

ENGINE SPACER PLATE GASKET

A sealing assembly for establishing a gas and fluid tight seal in an internal combustion engine is provided. The sealing assembly includes a plate of metal which has a plurality of openings and at least one generally flat surface. The plate also has at least one shelf which circumferentially surrounds one of the openings and which opens to the generally flat surface and the opening. The sealing assembly further includes at least one sealing bead of an elastically compressible material which is engaged with the shelf and extends outwardly therefrom past the generally flat surface for sealing the plate with another component in the internal combustion engine. 1. A method of making a sealing assembly for an internal combustion engine , comprising the steps of:preparing a plate made of metal and having a plurality of openings and at least one generally flat surface and at least one shelf which circumferentially surrounds at least one of said openings and which opens to said at least one generally flat surface and to one of said openings; andinjection molding an elastically compressible material into an overmolding engagement with the plate at the at least one shelf to form a sealing bead.2. The method as set forth in wherein the elastically compressible material is an elastomeric material.3. The method as set forth in wherein the at least one shelf of the plate is further defined as a plurality of shelves and further the steps of preparing a combustion seal and injection molding an elastomeric bead into an overmolding engagement with the combustion seal and at least one shelf of the plate.4. The method as set forth in wherein the combustion seal includes an armor piece and wherein the step of injection molding the elastomeric bead into the overmolding engagement with the combustion seal is further defined as injection molding the elastomeric bead into an overmolding engagement with the armor piece. This divisional application claims the benefit of U.S. Utility patent ...

Spring retainer seal

Aspects of the disclosure are directed to a system for isolating at least one of a fire zone and a high-pressure zone from at least one of a non-fire zone and a low-pressure zone, comprising a seal and a flexible spring retainer coupled to the seal that is configured to bias the seal. The biasing may be based in terms of a compression of the seal within a predetermined range of compression. A shielding of the seal from the at least one of the fire zone and the high-pressure zone may be provided.

Flow control valve having a sealing gasket with a secondary sealing surface

A flow control valve includes a valve body having a first section and a second section attached to the first section. A flow control member is positioned within the valve body and a shaft extends through the valve body and is connected to the flow control member to move the flow control member between an open position and a closed position. A sealing gasket is positioned within the valve body and engages the valve body to prevent the flow of fluid between the first section and the second section. The sealing gasket has an annular metallic body having an inner surface and an opposing outer surface, the outer surface defining a primary sealing surface, a groove formed in the outer surface, and an insert positioned within the groove, the insert defining a secondary sealing surface.

ELASTOMERIC GASKET HAVING A FOAM METAL SKELETAL MEMBER

A gasket for compressible placement between a first surface and a second surface is disclosed. In one embodiment, the gasket has a cellular metal skeleton, such as a woven metallic skeleton, encapsulated in a viscoelastic, pliable, deformable tacky polymer body, which may contain graphene or other filler. The skeleton has multiple strands, which connect to form multiple interconnected cells or pores. The void space is substantially filled in the manufacture of the gasket, with the tacky uncured polymer. The uncured polymer will set up or cure, and then the gasket may be used. 1. A gasket for compressible placement between an aircraft first surface and a second aircraft surface , the gasket comprising:a viscoelastic, pliable, deformable, polymer body; and 'wherein the body contains multiple graphene particles.', 'a metal skeleton comprising multiple interconnected metal strands defining multiple regular shaped cells, the metal skeleton encapsulated in the polymer body;'}2. The gasket of claim 1 , wherein the graphene particles are nanoparticles.3. The gasket of claim 1 , wherein the polymer body is gel.4. The gasket of claim 1 , wherein graphene particles are micron sized.5. The gasket of claim 1 , wherein graphene particles are submicron sized.6. The gasket of claim 1 , wherein the graphene particles are spheres claim 1 , flakes or fibers or a combination thereof.7. The gasket of claim 1 , wherein the graphene particles is in the amounts of 20-80% of total weight of the body.8. The gasket of claim 1 , wherein the body is a cured polyurethane gel body.9. The gasket of claim 7 , wherein the body is a cured polyurethane gel body between about 40-150 (cone penetration).10. The gasket of claim 1 , wherein the skeleton has a pore density of between 15 and 250 ppi.11. The gasket of claim 1 , wherein graphene particles are micron sized or submicron sized; and wherein the graphene particles are spheres claim 1 , flakes or fibers or a combination thereof.12. The gasket of ...

METHOD OF SEALING

A method of sealing includes positioning graphite within a cavity defined by walls of a body, shifting the body along a tapered surface of a first structure, expanding the body through an interaction with the tapered surface, engaging at least one second structure with the walls, expanding the graphite, compressing the graphite against the at least one second structure, and sealing the graphite to the at least one second structure and the body. 1. A method of sealing , comprising:positioning graphite within a cavity defined by walls of a body;shifting the body along a tapered surface of a first structure;expanding the body through an interaction with the tapered surface;engaging at least one second structure with the walls;expanding the graphite;compressing the graphite against the at least one second structure; andsealing the graphite to the at least one second structure and the body.2. The method of sealing of claim 1 , further comprising maintaining the graphite within the cavity.3. The method of sealing of claim 1 , further comprising resiliently compressing the graphite within the cavity.4. The method of sealing of claim 1 , further comprising resiliently compressing a resilient member other than the graphite within the cavity.5. The method of sealing of claim 1 , further comprising altering temperature of the graphite to cause it to expand.6. The method of sealing of claim 1 , further comprising increasing volume of the cavity.7. The method of sealing of claim 1 , further comprising maintaining the body longitudinally fixed in relation to the at least one second structure while expanding the body.8. The method of claim 1 , wherein positioning graphite within the cavity defined by walls of a body includes positioning a graphite slab between two adjacent graphite slabs that define the walls.9. The method of claim 1 , wherein positioning graphite within the cavity defined by walls of a body includes positioning the graphite in a cavity having a U-shaped cross- ...

GASKET AND FLANGE CONNECTION STRUCTURE FOR PLUMBING INSTRUMENT USING THE SAME

A gasket and flange connection structure for a plumbing instrument including a substantially annular core () coated with a coating part () and formed with annular seal surfaces () on both surfaces. These annular seal surfaces () are provided so as to be capable of making sealed contact with any of flange surfaces (, and ) 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 () are extended mounting parts () having a plurality of different diameters in accordance with the outer diameters of the various flange surfaces. 1. A gasket being a gasket main body having a substantially annular core coated with a coating part and formed with annular seal surfaces on both surfaces , these annular seal surfaces being provided so as to be capable of making sealed contact with a flange surface of any of flange surface of a flat seat shape flange , a full-flat seat shape flange , and a grooved-shape flange for allowing shared use , annular seal surfaces and annular protrusions protruding from the annular seal surfaces being provided on both surfaces of the gasket main body , the annular protrusions being fit-in portions that are fit in an annular groove as making contact with at least either one of an inner edge and an outer edge of the annular groove formed in a flange surface of the grooved-shape flange and being a seal portion making pressure contact with a flange surface of a flat seat shape flange or a full-flat seat shape flange.2. (canceled)3. The gasket according to claim 1 , wherein recessed parts are provided on both sides of the annular protrusions.4. The gasket according to claim 1 , wherein a plurality of groove parts are concentrically formed on an outer peripheral side with respect to the recessed parts provided on an outer peripheral side of the annular protrusions claim 1 , and an annular seal part capable of making pressure contact with the ...

EDGE-CLAMPED AND MECHANICALLY FASTENED INNER ELECTRODE OF SHOWERHEAD ELECTRODE ASSEMBLY

An inner electrode of a showerhead electrode assembly useful for plasma etching includes features providing improved positioning accuracy and reduced warping, which leads to enhanced uniformity of plasma processing rate. The assembly can include a thermal gasket set and fasteners such as bolts or cam locks located on a radius of ¼ to ½ the radius of the inner electrode. A method of assembling the inner electrode and gasket set to a supporting member is also provided. 1. A thermally and electrically conductive gasket of a gasket set configured to be mounted between a faceplate and backing plate of a showerhead electrode assembly , the gasket set consisting of:an inner gasket configured to be mounted on the inner electrode, comprising a plurality of concentric flat rings connected by a plurality of spokes;a first annular gasket configured to surround and be concentric with the inner gasket and be mounted on the inner electrode, comprising a flat annular ring having a plurality cutouts;a second annular gasket configured to surround and be concentric with the first annular gasket and be mounted on the outer electrode, comprising a flat annular ring having a plurality cutouts;a third annular gasket configured to surround and be concentric with the second annular gasket and be mounted on the annular shroud, comprising a flat annular ring having a plurality cutouts;wherein the gasket accommodates gas injection holes, alignment pin holes, the alignment ring groove and/or the threaded holes.2. The gasket of claim 1 , wherein the concentric flat rings in the inner gasket are continuous or segmented.3. The gasket of claim 1 , wherein the inner gasket comprises at least six concentric flat rings having a thickness of about 0.006 inch and a width of at least 0.1 inch claim 1 , wherein the first ring has an inner diameter of at least 0.44 inch and an outer diameter of at most 1.35 inches; the second ring has an inner diameter of at least 1.35 inches and an outer diameter of at ...

STRUCTURE FOR MOUNTING GASKET ON BLOCK

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. 1. A structure for mounting a gasket on a block , comprising: [ 'an annular inner wall made of resin and located radially outside an opening of the fluid channel, and', 'a fluid channel,'}, 'an annular outer wall made of resin and located radially outside the annular inner wall; and, 'a block including'}an annular gasket surrounding the opening of the fluid channel, whereinthe 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.2. The structure according to claim 1 , wherein the annular inner wall is thinner than the annular outer wall.3. The structure according to claim 2 , whereinthe annular inner wall is 0.72 mm to 6 mm in thickness, and [{'br': None, 'i': b=', 'f+, '2.410.24,\u2003\u2003(1)'}, {'br': None, 'i': b=', 'f+, '1.450.14.\u2003\u2003(2)'}], 'the radial thickness f of the annular inner wall and the radial thickness b of the annular outer wall fall within a range defined by the following equations (1) and (2)4. The structure according to claim 2 , whereinthe annular inner wall is 0.72 mm to 6 mm in thickness, andthe annular outer wall is 1.24 mm to 14.6 mm in thickness.5. The structure according to claim 1 , whereinthe annular inner wall and the annular outer wall protrude from a reference surface, which is perpendicular to their respective axial directions, to the ...

Gasket having a pliable resilient body wtih a perimeter having characteristics different than the body

A single piece gasket is disclosed having a skeletal member, typically metallic, and a pliable body. The pliable body includes a first portion having a first firmness and a second perimeter portion have a firmer consistency. When such a composite body is placed under compression, the perimeter will tend to limit the flow of the softer inner material past the firmer perimeter region or portion of the gasket. In this manner, creep or overrun of the less firm portion material will be reduced.

SEALING MEMBER

According to the present disclosure, a sealing member for providing a seal around a cable is provided. The sealing member comprises a resiliently deformable material and has a passage along its axis for receiving a cable. The sealing member comprises a first end, a second end and an intermediate portion, the first end disposed at the opposite end of the sealing member from the second end along the axis and the intermediate portion disposed between the first end and the second end. The intermediate portion comprises a circumferential groove disposed on its outer surface such that when a compressing force is applied to the first end and the second end along the axis of the sealing member the intermediate portion deforms to cause the passage to narrow. 1. A sealing member for providing a seal around a cable , the sealing member comprising a resiliently deformable material and having a passage along its axis for receiving the cable ,wherein the sealing member comprises a first end, a second end and an intermediate portion, the first end disposed at an opposite end of the sealing member from the second end along the axis and the intermediate portion disposed between the first end and the second end,wherein the intermediate portion comprises a circumferential groove disposed on its outer surface such that when a compressing force is applied to the first end and the second end along the axis of the sealing member the intermediate portion deforms to cause the passage to narrow.2. The sealing member of claim 1 , wherein the first and second ends each comprise a conic cutaway wherein the axis of the conic cutaway is coaxial with the axis of the sealing member.3. The sealing member of claim 1 , wherein the groove has a “V” shaped cross section.4. The sealing member of claim 1 , wherein the sealing member comprises a slit running from the first end to the second end to enable a cable to be placed into the passage through the slit.5. The sealing member of claim 1 , wherein the ...

GASKET

An object of the present invention is to provide a gasket capable of ensuring an excellent sealing property by a pair of seal beads oriented in directions axially opposing to each other, regardless of an inserting direction of the gasket into a setting groove. The object is achieved by a gasket in which: an axial length of a reinforcement ring () is formed to have a length such that the other axial end of the reinforcement ring () approaches an end surface of the other mating member or an end surface of a setting groove () in a state that one axial end of the reinforcement ring () contacts the end surface of the setting groove or the end surface of the other mating member; one axial end of the reinforcement ring () projects from an outer peripheral portion of a first seal bead (), and the first seal bead () has rigidity lower than rigidity of a second seal bead (); and the second seal bead () is formed with interference relative to the end surface of the other mating member or the end surface of the setting groove in a state that one axial end of the reinforcement ring () contacts the end surface of the setting groove or the end surface of the other mating member. 1. A gasket having a gasket body integrally molded with a reinforcement ring ,the gasket body including first and second seal beads positioned at one axial end and the other axial end of the reinforcement ring and oriented to an inner peripheral side in directions axially opposing to each other, andone of the first and second seal beads closely contacting an end surface of a setting groove formed on one mating member, and the other one of the first and second seal beads closely contacting an end surface of the other mating member,whereinan axial length of the reinforcement ring is formed to have a length such that the other axial end of the reinforcement ring approaches the end surface of the other mating member or the end surface of the setting groove in a state that one axial end of the reinforcement ...

GASKET

A method for fluidly sealing two conduits having mating surfaces is described. The method includes positioning a gasket between the surfaces, securing the two conduits together with the gasket interposed between the mating surfaces wherein the gasket includes an outer seal with a first thickness and an inner seal with a thickness greater than that of the outer seal. The step of positioning and/or the step of securing includes compressing the thickness of the inner seal. Methods of making the gaskets are also disclosed. 1. A method of fluidly sealing two conduits having mating surfaces , comprising:positioning a gasket between the mating surfaces; and [ a core comprising top and bottom surfaces comprising a series of serrations;', 'two sealing layers capable of fluidly sealing the two conduits, wherein the core is between the two sealing layers;', 'a deformable material capable of fluidly sealing the two conduits, wherein the deformable material is adjacent to and radially inward from the sealing layers;', 'wherein prior to positioning the gasket, the deformable material has a thickness measured from a top surface to a bottom surface of the deformable material that is greater than a thickness measured from a top surface to a bottom surface of the sealing layers; and, 'wherein the gasket comprises'}, 'wherein the step of positioning and/or the step of securing comprises compressing the thickness of the deformable material., 'securing the two conduits together with the gasket interposed between the mating surfaces;'}2. The method of claim 1 , wherein the deformable material is secured to the core.3. The method of claim 1 , wherein the deformable material has a compressability of 30% to 90%.4. The method of claim 1 , wherein the deformable material is more compressible than the sealing layers.5. The method of claim 1 , wherein the step of positioning and/or the step of securing comprises compressing the deformable material by a greater percentage than the sealing layers ...

ELASTOMERIC GASKET FOR FUEL ACCESS DOOR OF AN AIRCRAFT WING AND A METHOD FOR MAKING THE SAME

An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip. 1. A gasket for use with a two piece aircraft part assemblies , each of the pieces having generally flat inner facing mating walls and outer perimeters comprising:a partially open, flexible metallic skeleton comprised of multiple concentric members, the skeleton having a generally flat upper surface and a generally flat lower surface, an inner perimeter and an outer perimeter; and wherein the outer perimeter walls of both the skeleton and the body generally conform to the shape defined by the outer perimeters of the aircraft parts assembly;', 'wherein the gasket is adapted to lay between the mating walls of the pieces and receive compression therebetween; and', 'wherein the gasket is capable of withstanding multiple temperature and thermal cycles while maintaining its tackiness and resiliency and providing a good environmental seal., 'a pliable, resilient, elastomeric, cured polymer body, substantially filling the openings of the skeleton and generally tabular in nature, the body having a generally flat, tacky upper surface, a generally flat, tacky lower surface, an inner perimeter wall, and an outer perimeter wall;'}2. The gasket of claim 1 , wherein the gasket is in an uncompressed state between about 30 and 100 mil thick.3. The ...

Sealing Gasket with Corrugated Insert for Sealing Restrained or Non-Restrained Plastic Pipelines

A pipe sealing gasket is shown which is designed to be received within a raceway provided within a socket end of a female bell plastic pipe end which is assembled with a mating male spigot pipe end to form a plastic pipe joint. The raceway in the female bell plastic pipe end is preformed during manufacture and the gasket is installed thereafter. The gasket has a rubber body portion which is reinforced by a hard corrugated ring-shaped insert. The hard corrugated ring-shaped insert acts to prevent extrusion of the gasket during a variety of pressure conditions as well as preventing displacement during field assembly. 1. A reinforcing element for use in reinforcing a rubber sealing gasket used in scaling male and female sections of plastic pipe to provide a sealed fluid conduit , the reinforcing element comprising:a hard plastic band, the hard plastic band comprising a corrugated ring member formed as a series of interconnected alternating crest and root regions;wherein the hard plastic band is selectively sized to be received in a raceway provided in a mouth region of the female section of plastic pipe and wherein the hard plastic band acts to prevent extrusion of the gasket from the female pipe section of the plastic pipe once a spigot end of a mating male pipe section is installed to form a pipe joint.2. The reinforcing element of claim 1 , wherein the rubber gasket has a main body portion and wherein the hard plastic band is embedded within the main body portion of the gasket during gasket manufacture.3. The reinforcing band of claim 2 , wherein the hard plastic band is formed of a synthetic plastic material having a durometer which is greater than the durometer of the main body portion of the gasket while being flexible enough to allow the gasket to accept inverse curvature during installation within the female pipe section.4. The reinforcing band of claim 3 , wherein the synthetic plastic material is an engineered plastic.5. The reinforcing band of claim 1 , ...

GASKET WITH ELECTRICAL ISOLATING COATINGS

An electrically isolating gasket is disclosed wherein a coating layer is disposed on at least one surface, and in some embodiments, on all surfaces, of the disc-shaped core gasket component of the electrically isolating gasket. The core gasket component can be made of a metallic material and may include one or more grooves in each axial surface of the core gasket component. When the core gasket component includes such grooves, the coating can be applied to all surfaces of the grooves as well as all other surfaces of the core gasket component so that the coating encapsulates the core gasket component. The coating layer can be, for example, polyimide, polyamide, ceramic, and aluminum oxide. 1. An electrically isolating gasket comprising:a metallic core gasket component, the core gasket component having a disc shape and including one or more grooves formed in an axial face of the metallic core gasket component; anda coating formed on one or more surfaces of the metallic core gasket component, the coating comprising a dielectric material;wherein the coating is provided on at least one surface of the one or more grooves.2. The electrically isolating gasket of claim 1 , wherein the core gasket component is made from stainless steel.3. The electrically isolating gasket of claim 1 , wherein the coating material is selected from the group consisting of polyimide claim 1 , polyamide claim 1 , ceramic claim 1 , and aluminum oxide.4. The electrically isolating gasket of claim 3 , wherein the coating material is polyimide.5. The electrically isolating gasket of claim 1 , wherein all surfaces of the one or more grooves are coated by the coating.6. The electrically isolating gasket of claim 1 , wherein all surfaces of the core gasket component are coated by the coating.7. The electrically isolating gasket of claim 6 , wherein the coating has a uniform thickness.8. The electrically isolating gasket of claim 7 , wherein the thickness is less than 6 mm.9. The electrically isolating ...

SEALANT HAVING FIREWORTHY PROPERTIES FOR USE WITH AIRCRAFT PARTS

Fireworthy sealants may have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity. 1. A tape for use with an aircraft part having a surface , the tape comprising:a soft tacky polymer body;a skeleton; and wherein the polymer body has a surface, the surface comprising a first outer surface of the tape;', 'wherein the skin has a surface, the surface comprising a second outer surface of the tape;', 'wherein the tape passes 12 second vertical burn test according to 14 CFR Part 25 Subpart D, § 25.853(a) compartment interiors; and', {'sup': 2', '2, 'wherein the tape has toxicity limits of less than about: 150 PPM HCN, 1000 PPM CO, 100 PPM NO/NO, 100 PPM SO, 100 PPM HF, and 150 PPM HCl under AITM 3-0005, Issue 2.'}], 'a skin,'}2. The tape of claim 1 , wherein the gel is 100% solid (no VOCs).3. The tape of claim 1 , wherein the tape has a smoke density of 200 maximum at about 4.0 minutes under AITM2-0007A claim 1 , Issue 3.4. The tape of claim 1 , wherein the body comprises a two-part polymer claim 1 , the first part comprising a polyol and the second part comprising an isocyanate claim 1 , the two parts when combined curing to form the gel of the gel body claim 1 , and wherein the skeleton is comprised of a nylon claim 1 , polypropylene claim 1 , or fiberglass having a thickness less than about 0.033″.5. The tape of claim 1 , wherein the body ...

MATERIAL FOR GASKET

A material for gaskets is disclosed, wherein a metal surface coating layer, a primer layer and a rubber layer are formed, or a metal surface coating layer and a rubber layer are formed on at least a part of one side or both sides of a substrate formed of a metal plate sequentially from the metal plate side, and the metal surface coating layer comprises (A) one or more carbonates selected from the group consisting of Mg carbonate, Co carbonate, Zr carbonate, Mn carbonate, Ni carbonate, and Cu carbonate and (B) one or more selected from the group consisting of silica, alumina, zirconia, and titania. 1. A material for gaskets , comprising at least a substrate formed of a metal plate , a metal surface coating layer formed on one side surface or both side surfaces of the substrate , and a rubber layer formed via the metal surface coating layer , whereinthe metal surface coating layer comprises (A) one or more carbonates selected from the group consisting of Mg carbonate, Co carbonate, Zr carbonate, Mn carbonate, Ni carbonate, and Cu carbonate and (B) one or more selected from the group consisting of silica, alumina zirconia, and titania.2. The material for gaskets according to claim 1 , comprising a primer layer formed between the metal surface coating layer and the rubber layer claim 1 , wherein the primer layer comprises a cured product of a phenolic resin or a cured product of an epoxy resin.3. The material for gaskets according to claim 1 , wherein rubber forming the rubber layer is nitrile rubber.4. The material for gaskets according to claim 1 , wherein rubber forming the rubber layer is Fluorocarbon Rubber.5. The material for gaskets according claim 1 , wherein the metal surface coating layer is a surface coating layer formed by applying claim 1 , a treatment liquid for forming a metal surface coating layer comprising (A) one or more carbonates selected from the group consisting of Mg carbonate claim 1 , Co carbonate claim 1 , Zr carbonate claim 1 , Mn carbonate ...

GASKET RETAINER FOR SURFACE MOUNT FLUID COMPONENT

A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures. 18.-. (canceled)9. A gasket retainer for use in a fluid delivery system , comprising:a base member formed of a substantially flat sheet of material; andgasket-capturing major aperture having a non-convex periphery disposed in said base member;wherein the gasket-capturing major aperture comprises a major diameter sufficiently large to allow passage of a circular element therethrough and a minor diameter sufficiently small to engage a cavity, groove, or thread on the outside diameter of said circular element;and wherein the base member is configured to be flexed and then released during the installation of the circular element, and wherein the gasket capturing major aperture is configured to flex with the base member.10. The gasket retainer as recited in claim 9 , wherein the gasket capturing major aperture is elliptically shaped and smoothly concave.11. The gasket retainer as recited in claim 9 , wherein the base member comprises stainless steel.12. The gasket retainer as recited in claim 9 , wherein the base member is rectangular shaped.13. The gasket retainer as recited in claim 9 , wherein the gasket capturing major aperture comprises a first gasket capturing major aperture and the gasket retainer ...

Hose coupling seal

There is proposed an annular seal for a pipe coupling, comprising, a lower portion beatable within an upwardly open annular groove in the pipe coupling, an upper portion having an upwardly facing abutment surface, a depending skirt and a stiffening ring. The depending skirt is configured for engagement over a circular upstand of the pipe coupling, which is located inwardly of the annular groove. The stiffening ring is located within the upper portion of the annular seal, and includes an annular portion that is generally parallel with and spaced apart from the abutment surface and at least one circumferential leg depending from the annular portion that provides reinforcement for the depending leg.

ALKY-ONE GASKET

A method is provided for forming a gasket for sealing opposing flange surfaces of a pipe having corrosive fluid flowing therethrough. The method comprises defining a gasket profile incorporating a serrated profile core having a flange extending radially inward therefrom. A deformable pillow extends radially inward from the serrated profile core, to define a gasket intermediate portion about the flange, and a gasket inner portion radially inward from the flange. The deformable pillow material and thickness are selected such that upon compression to a thickness no less than the core thickness, the gasket inner portion exhibits a stress level sufficient to preclude corrosive liquid flowing through the pipe from passing radially outward beyond the gasket inner portion, and the gasket intermediate portion exhibits a stress level sufficient to preclude gas and liquid flowing through the pipe from passing radially outward beyond the gasket intermediate portion. 120-. (canceled)21. A gasket for sealing opposing surfaces , the gasket comprising:a serrated core having a core thickness;a flange extending radially inward from a core inner surface and having a flange thickness less than the core thickness; anda deformable pillow formed about the flange and extending radially inward from the core inner surface beyond the flange to define a gasket inner surface;an outer sealing zone about the core;an intermediate sealing zone between the core's inner surface and a flange inner surface; andan inner sealing zone between the flange inner surface and the gasket inner surface,wherein a gasket seating stress for the outer sealing zone is greater than a gasket seating stress for the intermediate sealing zone.22. The gasket of claim 21 , wherein the gasket seating stress for the intermediate sealing zone is no more than 21% of the gasket stress level.23. The gasket of claim 21 , wherein the gasket seating stress for the intermediate sealing zone is at least 2800 psi.24. The gasket of ...

GASKET

A gasket, to be installed between a first housing and a second housing, includes a first loop-shaped portion in a loop shape, a second loop-shaped portion in a loop shape that is positioned at a radially inner side of the first loop-shaped portion, with a first gap between the first loop-shaped portion and the second loop-shaped portion, and a first connector portion connecting the first loop-shaped portion and the second loop-shaped portion in a part of the first gap. 1. A gasket , to be installed between a first housing and a second housing , the gasket comprising:a first loop-shaped portion in a loop shape;a second loop-shaped portion in a loop shape positioned at a radially inner side of the first loop-shaped portion, with a first gap between the first loop-shaped portion and the second loop-shaped portion; anda first connector portion connecting the first loop-shaped portion and the second loop-shaped portion in a part of the first gap.2. The gasket according to claim 1 , wherein the first connector portion is thinner than both the first loop-shaped portion and the second loop-shaped portion.3. The gasket according to claim 2 ,wherein each of the first loop-shaped portion and the second loop-shaped portion is a portion including a plate-like base portion made of metal, and an elastic layer that partly covers the base portion, andwherein the first connector portion is a portion that includes the base portion and does not include the elastic layer.4. The gasket according to claim 1 , wherein the first connector portion is as thick as each of the first loop-shaped portion and the second loop-shaped portion.5. The gasket according to claim 4 , wherein the first loop-shaped portion claim 4 , the second loop-shaped portion claim 4 , and the first connector portion each include a plate-like base portion made of metal and an elastic layer that covers the base.6. The gasket according to claim 1 , further comprising:a third loop-shaped portion in a loop shape, disposed ...

Spiral gasket

The present invention has an object of providing a spiral gasket that is less influenced by thermal deterioration of a part of members thereof in high-temperature and high-pressure conditions than a conventional spiral gasket and thus is guaranteed to have stable sealing performance for a long time. A spiral gasket includes a sealing portion including a metal hoop member that has a cross-sectional shape including bent parts and is spirally wound around to have a plurality of winds such that the bent parts of the winds overlap one another; and a filler member located between the winds of the metal hoop member in a radial direction. At least a part of the filler member in a spiral direction is formed of a non-iron metal material having high deformability.

Sealing member for liquid composite spring and liquid composite spring

The spring includes an elastic member having a liquid accommodating chamber. The sealing member includes a base plate, a pressure plate, and a pressure elastic membrane provided in the liquid accommodating chamber. The pressure elastic membrane has a lip portion radially extending from an end portion of the pressure elastic membrane. The lip portion is provided with a projection. The pressure plate and the base plate define a clamping recess together. The lip portion is pressed in the clamping recess to seal the liquid accommodating chamber.

INSERT FOR A MOTOR VEHICLE SEAL

The present disclosure relates to an insert for a motor vehicle seal, with multiple frames connected to one another via webs. The webs have adjacent first legs with outer face ends along an insert longitudinal axis. A minimum distance of the outer face ends of the first legs of first frames to a bending axis of these legs is smaller than a maximum distance of the outer face ends of the first legs of second frames to the bending axis of the first legs of the first frames. 114-. (canceled)15. An insert for a motor vehicle seal comprising a first frame and a second frame connected to the first frame via a web structures , which along an insert longitudinal axis includes adjacent first legs with outer face ends , wherein a minimum distance of the outer face ends of the first legs of the first frame to a bending axis of the first legs is less than a maximum distance of the outer face ends of the first legs of second frames to the bending axis of the first legs of the first frames.16. The insert according to claim 15 , wherein the outer face ends of the first legs of the first and second frames are parallel to the bending axis.17. The insert according to claim 15 , wherein the outer face ends of the first legs of the first and second frames are at least in sections inclined against the bending axis.18. The insert according to claim 15 , wherein the outer face ends of the first legs of the first frames and the outer face ends of the first legs of the second frames are inclined against the bending axis in the same direction.19. The insert according to claim 15 , wherein the outer face ends of the first legs of the first frames and the outer face ends of the first legs of the second frames are inclined against the bending axis in opposite directions.20. The insert according to claim 15 , wherein the outer face ends of the first legs of the first and second frames are curved against the bending axis. in particular are designed wave-like.21. The insert according to claim 20 , ...

GASKET

A gasket for fluidly sealing two conduits having mating surfaces is described. The gasket includes an outer seal with a first thickness and an inner seal with a thickness greater than that of the outer seal. The inner seal can be compressed at least to the thickness of the outer seal. Methods of making the gaskets are also disclosed. 1. A gasket for fluidly sealing two conduits having mating surfaces , comprising:a core comprising top and bottom surfaces comprising a series of serrations;two sealing layers capable of fluidly sealing two conduits, wherein the core is between the two sealing layers; wherein the deformable material has a thickness measured from a top surface to a bottom surface of the deformable material that is greater than a sealing layer/core thickness measured from a top surface to a bottom surface of the sealing layers; and', 'wherein the thickness of the deformable material can be deformed at least to the sealing layer/core thickness., 'a deformable material capable of fluidly sealing two conduits, wherein the deformable material is adjacent to and radially inward from the sealing layers;'}2. The gasket of claim 1 , wherein the deformable material is secured to the core.3. The gasket of claim 1 , further comprising a projection extending radially inward from a core inner surface and into the deformable material claim 1 , wherein the projection secures the deformable material to the core.4. The gasket of claim 1 , wherein the deformable material has a compressability of 30% to 90%.5. The gasket of claim 1 , wherein the deformable material is more compressible than the sealing layers.6. The gasket of claim 1 , wherein the deformable material comprises polytetrafluoroethylene (PTFE).7. The gasket of claim 1 , wherein the deformable material comprises expanded PTFE.8. The gasket of claim 1 , wherein the core comprises stainless steel claim 1 , a Monel alloy claim 1 , or carbon steel.9. The gasket of claim 3 , wherein the projection comprises ...

Elastomeric shaft seal formed without oven post curing

An elastomeric seal ( 20 ), such as a shaft seal for automotive vehicle applications, includes an elastomeric compound ( 22 ) chemically coupled to a metal sealing ring ( 24 ) and is formed without an oven post curing step. The elastomeric seal ( 20 ) provides exceptional physical properties, similar to those of elastomeric seals of the prior art formed with an oven post curing step. The elastomeric seal ( 20 ) has an elastic modulus of 6.0 MPa to 13.0 MPa and a tensile strength of 11.1 MPa to 14.8 MPa. The elastomeric compound ( 22 ) includes 52.0 to 68.0 wt. % fluoroelastomer, 20.0 to 35.0 wt. % calcium silicate, and 5.0 to 15.0 wt. % diatomite. The elastomeric compound ( 22 ) is fully cured and chemically coupled to the metal sealing ring ( 24 ) during the compression or injection molding step, and thus an oven post curing step is not required.

SPIRAL GASKET

A spiral gasket includes: a gasket body having a body portion, an inner peripheral empty winding portion, and an outer peripheral empty winding portion. An inner ring having an outer peripheral surface on which an inner ring pawl portion engageable with the inner peripheral empty winding portion and an outer ring having an inner peripheral surface on which an outer ring pawl portion engageable with an outer peripheral surface of the outer peripheral empty winding portion are formed. The number of turns of the inner and outer peripheral empty winding portions are set to 5 to 10. Respective gaps are formed between the inner/outer peripheral surface of the inner/outer peripheral empty winding portion and a portion of the outer/inner peripheral surface of the inner/outer ring except for the inner/outer ring pawl portion. 1. A spiral gasket comprising:a gasket body including: a body portion which is formed in a spiral shape by overlapping a hoop member formed of a metal-made thin plate in a strip shape and a filler member formed of a soft material in a strip shape to each other; an inner peripheral empty winding portion which is formed on an inner periphery of the body portion and on which only the hoop member is wound; and an outer peripheral empty winding portion which is formed on an outer periphery of the body portion and on which only the hoop member is wound;an inner ring which is arranged radially inside the inner peripheral empty winding portion of the gasket body and having an outer peripheral surface on which an inner ring pawl portion engageable with an inner peripheral surface of the inner peripheral empty winding portion is formed; andan outer ring which is arranged radially outside the outer peripheral empty winding portion of the gasket body and having an inner peripheral surface on which an outer ring pawl portion engageable with an outer peripheral surface of the outer peripheral empty winding portion is formed, whereinthe number of turns of the inner ...

ARRANGEMENTS FOR PROVIDING A SUBSTANTIALLY FLUID-TIGHT SEAL

A gasket arrangement () for providing a substantially fluid-tight seal between at least two corresponding mating surfaces (), comprising a first member () and a second member (), the second member () being arranged at least in part to provide a fluid-tight seal about the first member (); wherein the second member () is capable of deforming the first member () while maintaining the fluid-tight seal when compressed. 1. A gasket arrangement for providing a substantially fluid-tight seal between at least two corresponding mating surfaces in a sectional tank , the gasket arrangement comprising:a first member and a second member, the second member being arranged at least in part to provide a fluid-tight seal about the first member so as to inhibit fluid contact by fluid from within the sectional tank with the first member;wherein the second member is capable of deforming the first member while maintaining the fluid-tight seal when compressed.2. The gasket arrangement of claim 1 , wherein the first member is more compressible than the second member.3. The gasket arrangement of or claim 1 , wherein the second member is arranged to be applied to the mating surface as a coating.4. The gasket arrangement of any preceding claim claim 1 , wherein the second member comprises an elastomeric material.5. The gasket arrangement of any preceding claim claim 1 , wherein the second member is arranged to completely cover the first member when provided on a mating surface.6. The gasket arrangement of any preceding claim claim 1 , wherein the second member is arranged to substantially encapsulate the first member.7. The gasket arrangement of any preceding claim claim 1 , wherein the second member has a thickness of less than 10 mm claim 1 , and preferably between 0.1 mm and 10 mm.8. The gasket arrangement of any preceding claim claim 1 , wherein the second member comprises at least one of: rubber claim 1 , silicon claim 1 , a resin claim 1 , a polymer and an acrylic.9. The gasket ...

Gap-Sub and Measurement While Drilling Assemblies Using Kerros Ringed Gasket Spacers

One or more jointed sub-assemblies with a non-conductive multi-layered ringed spacer gasket mating one or more joints of gap and/or MWD (measurement-while-drilling) sub-assemblies using a ringed spacer gasket is described. The gasket comprises at least two mutually joined ring-shaped bodies, each having a top surface portion, a top gasket section bonded with, adhered to, or part of the top surface portion, a bottom surface portion, and a bottom gasket section bonded with, adhered to, or part of the bottom surface portion wherein the bottom surface portion of one of the bodies is mated to a top surface portion of another of the bodies forming multi-layers; whereby at least two mutually joined ringed-shaped bodies in combination comprise a ringed spacer gasket that also seals one or more jointed sub-assemblies, so that the top and bottom gasket section along with the top and bottom surface portion have equal dimensioned outer diameters with a total thickness no greater than the diameter of the sub-assembly in each sub-assembly half-mated by the gasket. The ringed spacer gasket can be comprised of a metal and the bottom gasket section is separated from the top gasket section by an inner portion that is comprised of one or more non-conductive materials that are ductile but do not flow during dynamic motion and forces associated with the motion of the sub-assembly joints wherein at least one layer of the inner portion includes rings with toroidal wrapped fibers having voids filled with adhesives such that shear forces occurring during movement of the sub-assembly are distributed predominantly in the tensile direction along the axial length of the fibers, thereby eliminating cracking of the gasket under excessive loads. 1. One or more jointed sub-assemblies with a non-conductive multi-layered ringed spacer gasket mating one or more joints separated by a gap of said sub-assembly , said ringed spacer gasket comprising:at least two mutually joined ring-shaped bodies, said ...

APPARATUS AND METHOD FOR DECREASING FLOW NOISE IN RING-TYPE JOINTS

A gasket assembly is provided having a ring seal () and a ring joint gasket (). The ring seal () has an annular sealing body () and an annular outer seal portion () disposed on and defining an outer edge of the annular sealing body (). An annular inner seal portion () is disposed on and defines an inner edge of the annular sealing body (). A central bore () is defined by an annular surface () of the annular inner seal portion (). The ring joint gasket () has an inner surface () that engages the annular outer seal portion () of the ring seal (), wherein the ring joint gasket is insertable into a flange of a ring-type joint. 1120. A gasket assembly () , comprising:{'b': '100', 'a ring seal () comprising{'b': '102', 'an annular sealing body ();'}{'b': 106', '102, 'an annular outer seal portion () disposed on and defining an outer edge of the annular sealing body ();'}{'b': 108', '102, 'an annular inner seal portion () disposed on and defining an inner edge of the annular sealing body ();'}{'b': 104', '110', '108, 'a central bore () defined by an annular surface () of the annular inner seal portion (); and'}{'b': 12', '13', '106', '100, 'a ring joint gasket () having an inner surface () that engages the annular outer seal portion () of the ring seal (), wherein the ring joint gasket is insertable into a flange of a ring-type joint.'}212012. The gasket assembly () of claim 1 , wherein the ring joint gasket () comprises a BX claim 1 , RX claim 1 , SRX claim 1 , SBX claim 1 , Bridgeman claim 1 , delta claim 1 , or lens type gasket.3120102106108. The gasket assembly () of claim 1 , wherein the annular sealing body () comprises a width (W) less than a width of at least one of the annular outer seal portion () and annular inner seal portion ().4120102106108. The gasket assembly () of claim 1 , wherein the annular sealing body () comprises a width (W) less than a width of at both the annular outer seal portion () and the annular inner seal portion ().5120108. The gasket ...

SEALING APPARATUS AND GASKET

A sealing apparatus using a gasket in which a gasket main body is integrally formed with a reinforcing ring, the gasket main body has a one-end-side seal bead and an other-end-side seal bead which are positioned on one end side and another end side of the reinforcing ring in an axial direction and are oriented in directions facing away from each other in the axial direction, the one-end-side seal bead is closely contacted on a bottom surfaced of an attachment recessed part formed in a housing, and the other-end-side seal bead is closely contacted on a cover which closes the attachment recessed part of the housing, wherein in a state of being attached in the attachment recessed part with the cover removed from the housing, at least a part of an outer peripheral portion of the gasket serves as a supportable portion by providing a flange consecutively provided on an outer periphery side of the reinforcing ring. 1. A sealing apparatus using a gasket in which a gasket main body is integrally formed with a reinforcing ring , the gasket main body having a one-end-side seal bead and an other-end-side seal bead which are positioned on one end side and another end side of the reinforcing ring in an axial direction and are oriented in directions facing away from each other in the axial direction , the one-end-side seal bead being closely contacted on a bottom surface of an attachment recessed part formed in a housing , and the other-end-side seal bead being closely contacted on a cover which closes the attachment recessed part of the housing ,wherein in a state of being attached in the attachment recessed part with the cover removed from the housing, at least a part of an outer peripheral portion of the gasket serves as a supportable portion by providing a flange consecutively provided on an outer periphery side of the reinforcing ring.2. The sealing apparatus according to claim 1 , wherein a gap with an inner peripheral surface of the attachment recessed part is formed in at ...

Gasket retainer for surface mount fluid component

A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures.

VACUUM DOUBLE STRUCTURE AND HEAT TREAT FURNACE

A vacuum double structure includes: a tubular and metal inner wall member; a tubular and metal outer wall member in which the inner wall member is accommodated; and a sealing member provided between a facing surface of the inner wall member and a facing surface of the outer wall member. The sealing member includes an annular spacer, a first annular packing material, and a second annular packing material. The annular spacer is provided between the facing surface of the inner wall member and the facing surface of the outer wall member. 1. A vacuum double structure comprising:a tubular and metal inner wall member;a tubular and metal outer wall member in which the inner wall member is accommodated; anda sealing member provided between a facing surface of the inner wall member and a facing surface of the outer wall member, whereinthe sealing member includes an annular spacer, a first annular packing material, and a second annular packing material;the annular spacer is provided between the facing surface of the inner wall member and the facing surface of the outer wall member;the first annular packing material is accommodated in a first groove formed on a first opposed surface of the spacer with respect to the facing surface of the inner wall member and abuts with the facing surface of the inner wall member;the second annular packing material is accommodated in a second groove formed on a second opposed surface of the spacer with respect to the facing surface of the outer wall member and abuts with the facing surface of the outer wall member; andthe sealing member maintains a space between the inner wall member and the outer wall member in a vacuum state.2. The vacuum double structure according to claim 1 , wherein:the spacer is a member made of resin and having elasticity; andthe spacer is supported by a metal belt-shaped ring provided on an inner peripheral surface of the spacer and a metal belt-shaped ring provided on an outer peripheral surface of the spacer.3. A heat ...

SUPPORT STRIP WITH REINFORCING MEANS

The invention relates to a deformable support strip as an insert for decorative or sealing strips made of a flexible material, in particular for rubber and/or plastic clamping profiles, comprising a metal strip which comprises a first strip portion and a second strip portion which are interconnected at a connecting point, the support strip being provided to increase the stability in the region of the connecting point with reinforcing means. 1. For use in a decorative or sealing strip made of a flexible material , a deformable support strip comprising: i. a first strip portion, and', 'ii. a second strip portion connected to the first strip portion at a connecting point;, 'A. a metal strip comprising'}B. a reinforcing means disposed in a region of the support strip including of the connecting point to provide increased stability to the support strip.2. The support strip of claim 1 , wherein the support strip extends in a longitudinal direction claim 1 , the support strip having a first edge and a second edge each extending in the longitudinal direction claim 1 , wherein the metal strip is provided with a plurality of central slots each central slot extending transversely with respect to the longitudinal direction claim 1 , and a plurality of edge slots each edge slot extending transversely with respect to the longitudinal direction claim 1 , at least some of the edge slots directed inwardly from the first edge and at least some of the edge slots directed inwardly from the second edge.3. The support strip of to claim 1 , wherein the reinforcing means does not extend across the entire length of the support strip.4. The support strip of claim 2 , wherein the reinforcing means extends across at least one of the central slots or one of the edge slots.5. The support strip of claim 1 , wherein the connecting point is a welding point.6. The support strip of claim 1 , wherein the support strip in the region of the connecting point has a tensile strength that is higher than the ...

Kerros or Layered Non-Conductive Ringed Sealing Pancake Gasket Assembly

A non-conductive multi-layered ringed sealing gasket for mating pipe joints along a piping assembly comprising at least two mutually joined ring-shaped bodies. The ringed sealing gasket can be comprised of a metal and the bottom gasket section is separated from the top gasket section by an inner portion that is comprised of one or more non-conductive materials that are ductile but do not flow during dynamic motion and forces associated with the motion of the pipe joints wherein at least one layer of the inner portion includes rings with toroidal wrapped fibers having voids filled with adhesives such that shear forces occurring during movement of the piping assembly are distributed predominantly in the tensile direction along the axial length of the fibers, thereby eliminating cracking of the gasket under excessive loads.

Seal for an Electrolyser Cell and Electrolyser Cell Provided with Such a Seal

A seal for an electrolyser cell and an electrolyser cell provided with such a seal. A seal () for an electrolyser cell comprising a core () and a shell (). The core () is generally annular and has two faces mutually opposite each other in a thickness direction and at least two openings (). The two openings () are through-openings in the thickness direction and are substantially diametrically opposed to each other. The shell () at least partially covers the two faces, leaving the two openings () at least partially flee. The shell () has at least one first rib () extending over a first () of the two faces according to a contour enclosing an inner edge () of the core () and the two openings () in such a way as to allow a fluid to circulate between the two faces in the thickness direction. 1. A seal for an electrolyzer battery , comprising:a generally annular core having two faces that are mutually opposite in a thickness direction (XX), and at least two through-apertures extending in the thickness direction (XX) and which are substantially radially opposite each other; andan envelope at least partially covering the two faces while leaving the two apertures at least partially free,and comprising at least one first rib extending, over a first of the two faces, along a contour enclosing an internal edge of the core and the two apertures so as to allow a fluid to flow between the two faces in the thickness direction (XX).2. The seal as claimed in claim 1 , in which the envelope has a configuration and a composition that are adapted so as to electrically insulate two members making contact with one and the other of the two faces claim 1 , respectively.3. The seal as claimed in claim 1 , in which the core has contains a metallic composition and in which the envelope contains an elastomer-based composition.4. The seal as claimed in claim 3 , in which the envelope contains a composition comprising ethylene-propylene-diene monomer (EPDM).5. The seal as claimed in claim 1 , in ...

WIRE RING COMBUSTION SEAL FOR AUTOMOTIVE ENGINE

A leak-proof sealing system is provided for sealing combustion chambers of an automotive engine. The system comprises a head gasket compressed between an engine block and a cylinder head, the head gasket comprising a gasket plate, a plurality of circular combustion apertures positioned on the gasket plate, the plurality of circular combustion apertures configured to register with a plurality of cylinder bore openings of the engine block, a plurality of bolt apertures distributed on the gasket plate, the plurality of bolt apertures alternating with the plurality of circular combustion apertures, and a plurality of wire rings, each wire ring extending circumferentially around a corresponding circular combustion aperture of the plurality of circular combustion apertures, where a surface of each wire ring includes a selective metal coating on sections of the wire ring spanning between two consecutive bolt apertures of the plurality of bolt apertures, and wherein sections of the wire ring located closer to the plurality of bolt apertures are devoid of metal coating. In one example, the system helps increase stress locally and reduces fatigue lift motion, thereby improving sealing and engine durability. 1. A system for an engine , comprising:a wire ring configured to extend circumferentially around a circular combustion aperture of a cylinder head gasket, the wire ring comprising a metal deposition on a surface of a plurality of selective sections, such that the sections of the wire ring located farther from a plurality of bolt apertures of the cylinder head gasket include the metal deposition.2. The system of claim 1 , wherein sections of the wire ring located closer to the plurality of bolt apertures of the cylinder head gasket are devoid of the metal deposition.3. The system of claim 1 , wherein the metal deposition has a thickness range of 0.001-0.006 inches.4. The system of claim 3 , wherein the metal is deposited chemically or by electroplating.5. The system of ...

ELECTRICALLY ISOLATING, FIRE-SAFE SEALING ELEMENT

An isolation gasket for use between facing flanges of two flow conduit sections for fluid passage therethrough. The isolation gasket includes non-conductive layers and coatings that cover a flat metal core ring to provide electrical isolation, and a fire resistant layer adjacent another non-conductive layer wherein this side by side arrangement uniquely maintains a seal during a fire. In one form, a serrated ring portion of the flat metal core ring has a convex profile. 1. An isolation gasket for use between facing flanges of two flow conduit sections for fluid passage therethrough , the isolation gasket comprising:a flat metal core ring having an upper face opposing a lower face and an opening formed therein to allow fluid passage therethrough, the flat metal core ring having a serrated ring positioned between an inner ring and an outer ring, the serrated ring having a plurality of serrations along the upper face and the lower face;a first non-conductive layer on the upper face and the lower face of the inner ring to provide a dieletric barrier for the inner ring;a non-conductive coating on the plurality of serrations along the upper face and the lower face of the serrated ring to provide a dielectric barrier for the serrated ring;a second non-conductive layer on the upper face and the lower face of the outer ring to provide a dielectric barrier for the outer ring;a fire resistant layer on the non-conductive coating that is positioned on the serrated ring, wherein the fire resistant layer spans from an outer edge of the serrated ring to a mid-region of the serrated ring; anda third non-conductive layer on the non-conductive coating that is positioned on the serrated ring, wherein the third non-conductive layer spans from an inner edge of the serrated ring to the mid-region of the serrated ring, wherein the fire resistant layer abuts against the third non-conductive layer.2. The isolation gasket of claim 1 , wherein the non-conductive coating is made of ...

METHOD OF MANUFACTURING SUBSTRATE INTEGRATED GASKET

Disclosed is a method for manufacturing a substrate-integrated gasket using screen printing. The method includes: a step for forming, on a surface of a substrate by means of screen printing, a coating layer of a paste for forming a gasket; and a step for hardening the coating layer by pressing, at a predetermined height, a coating layer correction member to the coating layer. The cross-sectional shape of the coating layer formed on the surface of the substrate is corrected by means of the coating layer correction member, and in such state, the coating layer hardens to be a gasket, thereby forming a gasket having a highly accurate cross-sectional shape. 1. A method of manufacturing a substrate integrated gasket , the method comprising:a step of forming an application layer of a gasket forming paste to a surface of a substrate according to a screen printing; anda step of pressing an application layer correcting member onto the application layer with a predetermined height and curing the application layer.2. The method of manufacturing the substrate integrated gasket according to claim 1 , wherein the gasket forming paste is made of an ultraviolet curable liquid rubber claim 1 , the application layer correcting member is constructed by a transparent plate claim 1 , and the application layer is cured by irradiating ultraviolet light to the application layer via the application layer correcting member.3. The method of manufacturing the substrate integrated gasket according to claim 1 , wherein the application layer correcting member is formed into a tabular shape.4. The method of manufacturing the substrate integrated gasket according to claim 2 , wherein the application layer correcting member is formed into a tabular shape. This application is a U.S. National Stage Application of International Application No. PCT/JP2016/066334, filed on Jun. 2, 2016, and published in Japanese as WO 2016/199659 on Dec. 15, 2016 and claims priority to Japanese Application No. 2015-115481 ...

INNER BARREL SHAFT SEAL MOUNTING STRUCTURE OF WASHING MACHINE

An inner barrel shaft seal mounting structure of a washing machine comprises an inner barrel flange and an inner barrel shaft which are arranged at an inner barrel bottom, wherein the upper end part of the inner barrel shaft is a flange structure, the inner barrel flange is connected with an inner barrel shaft flange, and a composite sealing gasket is arranged between the inner barrel flange and the inner barrel shaft flange, the composite sealing gasket comprises a metallic framework and a rubber gasket which are combined into one piece through vulcanization. According to the scheme, the composite sealing gasket is of an annular flat structure and is provided with a bolt through hole, an inner teeth, a positioning structure and an annular convex rib. The scheme has functions of gasket and seal, and can bear a relatively high radial force and a relatively high axial force. 1. An inner barrel shaft seal mounting structure of a washing machine , comprising an inner barrel flange arranged at an inner barrel bottom and an inner barrel shaft , and an upper end part of the inner barrel shaft being a flange mounting structure , and the inner barrel flange being in seal connection with an inner barrel shaft flange; wherein ,a composite sealing gasket is arranged between the inner barrel flange and the inner barrel shaft flange, and the composite sealing gasket comprises a metallic framework and a rubber gasket which are combined into one piece through vulcanization.2. The inner barrel shaft seal mounting structure of the washing machine according to claim 1 , wherein the composite sealing gasket is of a flat annular structure claim 1 , a center hole is formed in the middle of the composite sealing gasket claim 1 , and a first annular convex rib is arranged on an upper surface and/or a lower surface of the composite sealing gasket around the center hole.3. The inner barrel shaft seal mounting structure of the washing machine according to claim 1 , wherein a plurality of bolt ...

Dust cover

A dust cover that enables a dust lip to consistently exhibit its sealing function. The dust cover includes a sealing body made of an elastic material and integrally including a body part 110, a fixed part, and a sealed part 120, and a reinforcing ring 150 made of metal or resin and embedded in the sealed part 120. The sealed part 120 includes a first inner circumferential sealed portion 121 a, a second inner circumferential sealed portion 121 b, and a dust lip 122 slidable against an end face of a knuckle 400. The reinforcing ring 150 includes a tubular part 151 concentric to a shaft part 310, an inward flange part 152 provided at one end of the tubular part 151 and supported on a flange 330 fixed to the shaft part 310, and a pressing part 154 provided at the other end of the tubular part 151 and pressing the dust lip 122 against the end face of the knuckle 400.

AN ELASTOMERIC SEAL

An elastomeric seal for use in semiconductor manufacturing apparatus comprising an ink on at least a portion of the upper surface thereof, wherein the ink comprises a barrier material, the barrier material being operable to prevent or reduce degradation of the elastomeric seal from ultraviolet (UV) radiation. 1. An elastomeric seal for use in semiconductor manufacturing apparatus comprising an ink on at least a portion of the upper surface thereof , wherein the ink comprises a barrier material , the barrier material being operable to prevent or reduce degradation of the elastomeric seal from ultraviolet (UV) radiation.2. An elastomeric seal according to claim 1 , wherein the seal is generally elongate claim 1 , preferably comprising a continuous loop operable to fit into a channel.3. An elastomeric seal according to claim 2 , wherein the elastomeric seal comprises a lower portion and an upper portion claim 2 , wherein the lower portion is operable to fit into a channel via friction fit.4. An elastomeric seal according to claim 3 , wherein the upper portion of the elastomeric seal protrudes from the channel into which the lower portion is operable to fit and which upper surface may be exposed to UV radiation claim 3 , in use.5. An elastomeric seal according to claim 1 , wherein in the elastomeric seal is to be a simple O-ring claim 1 , face seal claim 1 , lip seal claim 1 , D-seal claim 1 , X seal T-Seal claim 1 , cap seal claim 1 , wiper seal claim 1 , energising lip seal or spring seal or wafer handling elastomeric parts such as end effector pads or suction cups.6. An elastomeric seal according to claim 1 , comprising a polymeric material comprising one or more fluoropolymer materials claim 1 , respectively comprising one or more homopolymers or copolymers derived from combinations of monomers comprising fluorine.7. An elastomeric seal according to claim 1 , wherein the barrier material comprises metallic particles.8. An elastomeric seal according to claim 7 , ...

MECHANICAL SEAL

An end surface-contact mechanical seal providing a shielding seal between a liquid area (A) and an atmospheric area (B) by a relative rotation, while in a contact state, of opposing end surfaces () of a case-side sealing ring (), which is fixed to a seal case, and a ceramic shaft-side sealing ring (), which is held on the sleeve () of a rotary shaft (). A rubber O-ring () is installed between a sealing ring-side seal surface (), which is formed on the inner peripheral surface of the shaft-side sealing ring (), and a shaft-side seal surface (), which is formed on the outer peripheral surface of the sleeve (), so as to be relatively movable in the axial direction while sealing the surfaces. A diamond film () is formed over the entire surface of the sealing ring-side seal surface (). 1. A mechanical seal , comprising:a case-side sealing ring fixed to a seal case; anda shaft-side sealing ring held on a rotary shaft via an annular packing made of an elastic material, shaft-side sealing ring being movable in an axial direction of the shaft;said mechanical seal being configured such that the case-side sealing ring and the shaft-side sealing ring are rotated relative to each other while opposing seal end surfaces thereof are in contact, thereby forming a shield seal between a liquid area, which is an area on either an inner or an outer peripheral side of the seal end surfaces, and an gas area, which is on another side;whereinthe shaft-side sealing ring is formed from a ceramic or cemented carbide;the shaft-side sealing ring has a seal end surface formed at a distal end part thereof, and an inner peripheral part of the shaft-side sealing ring has a sealing ring-side seal surface which is concentric and parallel to a shaft-side seal surface which is an outer peripheral surface of the rotary shaft;the annular packing is provided between the sealing ring-side seal surface and the shaft-side seal surface so as to be relatively movable in the axial direction in such state that a ...

ARRANGEMENT COMPOSED OF A MEASURING DEVICE AND A CONTAINER

The invention relates to an arrangement composed of a measuring device and a container, wherein the measuring device () is suited for insertion into the container, which contains the medium to be measured, and wherein the container for receiving the measuring device () has a connector piece () having a passage opening extending in an axial direction and a seal land () projecting into the passage opening, wherein the measuring device () comprises a rotationally symmetric housing part (), which is flush with the connector piece () and has an external cone portion (), which forms with an internal cone portion () provided on the connector piece () a beveled sealing surface pair. According to the invention, the sealing element in the region of the external and internal cone portions () consists in the front end section, which faces the medium, at least partially of a plastic, especially PEEK, or an elastomer and consists in the adjoining second section (), facing away from the medium, of metal or ceramic or a fiber-reinforced plastic so that a defined and thus pressure- and force-resistant stop results in the axial direction between the external cone portion () of the measuring device () and the internal cone portion () of the connector piece (), while independently thereof the sealing function is achieved exclusively in the front end section (), facing the medium, of the sealing element (). 1112022. Arrangement of a measuring device and a container , wherein the measuring device () is suited for insertion into the container , which contains the medium to be measured , and wherein for receiving the measuring device () the container has a connector piece () having a passage opening extending in an axial direction and a seal land () projecting into the passage opening ,{'b': 1', '10', '20', '11', '21', '20, 'wherein the measuring device () comprises a rotation-symmetric housing part (), which ends on the medium side with the connector piece () in a flush manner and has an ...

POLYUREA GASKET AND GASKET TAPE AND A METHOD OF MAKING AND USING THE SAME

A gasket or tape material for sealing between two members. The gasket or tape material, in one embodiment, includes a skeletal member and/or metallic and/or non-metallic particles. Enclosing the skeletal member and/or particles is a flexible, compressible resilient polyurea body member having a tacky outer surface, the tacky outer surface for engagement between the two members. The resilient body may be comprised of polyurea. The skeletal member may be comprised of a metallic or a non-metallic material, woven or non-woven metallic or non-metallic. 1. A gasket or tape for sealing between two members , the two members under compression and being two parts of an aircraft , the gasket material comprising:a flexible skeletal member; anda flexible, deformable, elastomeric resilient polyurea body member having a tacky outer surface, the body member for substantially enclosing the skeletal member with a self-curing mix of an isocynate component and an amine terminated component, the resilient body member having a tacky top surface and a tacky bottom surface.2. The gasket or tape of claim 1 , wherein the body has a peel strength between about 2 and 7 pounds/inch width.3. The gasket or tape of claim 1 , wherein the mix has a pre-cured viscosity claim 1 , when coming out of the nozzle of an applicator of between about 200 and 4500 Cps.4. The gasket or tape of claim 1 , wherein the body has a hardness after curing of between about 40 and 150 (37.5 gram half cone penetrometer).5. The gasket or tape of claim 1 , wherein the body is free from volatile organic compounds (VOC's) and solvents.6. The gasket or tape of claim 1 , wherein the self-curing mix will cure between about 3 and 11 minutes.7. The gasket or tape of claim 1 , wherein the skeleton member is a mesh.8. The gasket or tape of claim 7 , wherein the mesh is non-metal.9. The gasket or tape of claim 7 , wherein the mesh is metal.10. The gasket or tape of claim 1 , wherein skeletal member is a metallic or non-metallic open ...

RESTRAINED GASKET FOR PLASTIC PIPES

A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides an internally restrained pipe joint including a bell with a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of toothed, rigid restraining segments is at least partially embedded in the gasket. 1. A restrained pipe joint comprising:an annular gasket located within an annular groove of a bell socket of a first plastic pipe, the annular gasket including a plurality of rigid segments partially embedded within the annular gasket, each rigid segment of the plurality of rigid segments including at least one spigot tooth row having opposing lateral edges and a first length extending to and between the opposing lateral edges; anda second plastic pipe inserted through an opening defined by the inner annular surface, the second plastic pipe having an outer surface with a circumference of a second length, each of the at least one spigot tooth row impinging upon the circumference,wherein a sum of all of the first lengths is less than 70% of the second length.2. The restrained pipe joint of claim 1 , wherein the sum of first lengths is between about 40% to 70% of the second length.3. The restrained pipe joint of claim 1 , wherein claim 1 , (i) when the second length is about 15.08 inches claim 1 , the sum of all of the first lengths is about 6 inches claim 1 , (ii) when the second length is about 21.68 inches claim 1 , the sum of all of the first lengths is about 11.25 inches claim 1 , (iii) when the second length is in a range of about ...

Self-sealing fastener and method of use

A self-sealing fastener for reducing leaks between the self-sealing fastener and a substrate. The self-sealing fastener includes a shank that extends longitudinally between a first end and a second end. The shank has an outer surface. The self-sealing fastener also includes a head that extends radially outwardly from the first end of the shank. The head has an underside surface that is adjacent to the first end of the shank and a topside surface opposite the underside surface. A mastic sealant is disposed on at least one of the outer surface of the shank and the underside surface of the head to provide a water-tight seal between the self-sealing fastener and the substrate after the self-sealing fastener is installed in the substrate.

Interface seal for a fuel cartridge

A resilient sealing member ( 27 ) has a first face ( 40 ) and a second face ( 41 ) and an aperture ( 42 ) extending between the first face and the second face. At least two, preferably three or more, circumferential ridges ( 43, 44, 45 ) surround the aperture on the first face. Channels ( 46, 47 ) may be disposed between each adjacent pair of circumferential ridges and a flat seal may be provided on the first face, peripheral to the circumferential ridges. The flat seal may occupy a different plane than the plane occupied by apexes of the circumferential ridges. The resilient sealing member may be incorporated into interface seal assembly comprising a rigid frame ( 26 ) onto which it is moulded. The rigid frame may comprise a printed circuit board ( 25 ). The interface seal assembly allows for an easily interchangeable seal on a refillable fuel cartridge ( 1 ) for a fuel cell apparatus.

Gasket with a high durability coating and method for creating the same

A gasket (14) with a high durability coating, and a method for applying the coating to the gasket is provided. The gasket may have at least a first metallic substrate layer (22) having a metallic upper surface (24) and a metallic lower surface (26). An anti-fretting coating (50) may be adhered directly to at least the metallic upper surface of the metallic substrate. A top coating (56) may be directly adhered over the entire anti-fretting coating.

SEALING SYSTEM HAVING INTERLOCKING INNER DIAMETER SEAL ELEMENT TO RESIST PRESSURE CHANGES

Gasket seals for high pressure applications include retaining elements with inner diameter seal elements that interlock with the retaining element to provide resistance to movement in both axial and radial directions between the retaining element and seal element. High pressure sealing may be accomplished using a metallic core retaining element to which an electrically isolating material is bonded on either or both sides. Sealing is achieved through an inner diameter dielectric sealing element, such as a polytetrafluoroethylene (PTFE) inner diameter sealing ring. Flanges of a joint in a fluid flow ling may be bolted together with the gasket seal interposed therebetween. In the event of pressure changes, the inner diameter seal resists being drawn into the flow line, and resists axial movement relative to the retaining element, through dual locking members that secure the seal to the retaining element. 1. A gasket for use between joined pieces in a flow line that is operative to contain fluid therein , comprising:(A) a retaining ring having opposing side surfaces separated by a first axial height and an inner diameter opening formed therein, the inner diameter opening comprising a first shape;(B) a clamp, the clamp having an outer clamp surface having a portion with a second shape to operatively engage the first shape such that the clamp engages the retaining ring, wherein the clamp has an inner clamp opening opposite the outer clamp surface, the clamp having a second axial height; and(C) an inner diameter seal element having a third axial height is formed of a non-conductive material and has an inner seal surface and an opposed outer seal surface comprising at least an annular protrusion shaped to extend into the inner clamp opening configured such that the inner clamp opening engages the annular protrusion when compressive force is applied to the clamp,wherein the cooperative engagement of the inner clamp opening and the annular protrusion inhibits radial movement ...

Sealing device for providing a seal in a turbomachine

Sealing device for providing seals between adjacent components, and turbomachines utilizing such sealing devices, are provided. A sealing device includes a seal plate insertable between the adjacent components, the seal plate comprising a first face and an opposing second face. The sealing device further includes a plurality of pins extending from one of the first face or the second face, the plurality of pins configured to space the one of the first face or the second face from contact surfaces of the adjacent components.

ELASTOMERIC GASKET FOR FUEL ACCESS DOOR OF AN AIRCRAFT WING AND A METHOD FOR MAKING THE SAME

An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip. 1. A gasket for use with a two piece aircraft part assemblies , each of the pieces having generally flat inner facing mating walls and outer perimeters in a pre-compressed state comprising:a porous, partially open, flexible metallic skeleton being generally tabular in nature, the skeleton having a generally flat upper surface and a generally flat lower surface, an inner perimeter and an outer perimeter; and wherein the outer perimeter walls of both the skeleton and the body generally conform to the shape defined by the outer perimeters of the aircraft parts assembly; and', 'wherein the gasket is adapted to lay between the mating walls of the pieces and receive compression therebetween; and', 'wherein the skeleton has multiple separate tabular layers with the polyurethane body substantially filling the openings in the multiple layers., 'a pliable, resilient, elastomeric, sticky, substantially air bubble free, coherent, homogeneous, silicon-free polyurethane body, substantially filling the openings of the skeleton and being generally tabular in nature, the body being ring shaped having a generally flat, tacky upper surface, a generally flat, tacky lower surface, an inner perimeter wall, and an outer perimeter wall;'}2. The gasket of ...

POSITIVE/NEGATIVE PRESSURE GASKET

A gasket is configured to be mounted in a gasket mounting groove that opens to the radially inside of a mounting member provided with a hydraulic passage, and is provided with a back-side hydraulic passage serving as a gap on its groove bottom surface. The gasket includes a gasket body with a reinforcement ring buried therein and a flange provided to extend from one axial end of the gasket body toward the radially outside. The gasket also includes a one-end-side seal lip that is provided to extend from the one axial end of the gasket body toward one side in an axial direction and the radially inside, and is configured to come in contact with one axial side surface of the gasket mounting groove when the gasket body is mounted. The gasket also includes an other-end-side seal lip that is provided to extend from the other axial end of the gasket body toward the other side in the axial direction and the radially outside, and is configured to come in contact with the other axial side surface and a bottom surface of the gasket mounting groove when the gasket body is mounted. 1. A positive/negative pressure gasket comprising:an annular gasket body with a reinforcement ring buried therein, the gasket body configured to be mounted in a gasket mounting groove that opens in a radial direction of a mounting member and is provided with a gap on a groove bottom surface thereof;a flange that is provided to extend from one axial end of the gasket body toward a direction opposite to an opening direction of the mounting member;a one-end-side seal lip that is provided to extend from the one axial end of the gasket body toward one side in an axial direction and the opening direction of the mounting member, and is configured to come in contact with one axial side surface of the gasket mounting groove when the gasket body is mounted in the gasket mounting groove; andan other-end-side seal lip that is provided to extend from another axial end of the gasket body toward another side in the ...

GASKET RETAINER FOR SURFACE MOUNT FLUID COMPONENT

A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures. 1. A gasket retainer for use in a fluid delivery system , comprising:a base member formed of a substantially flat sheet of material; anda gasket-capturing aperture having a non-convex periphery disposed in said base member;wherein the gasket-capturing aperture is elliptically shaped and smoothly concave with a major diameter sufficiently large to allow passage of a circular element therethrough and a minor diameter sufficiently small to engage a cavity, groove, or thread on the outside diameter of said circular element;and the base member is flexed and then released during the installation of the circular element.2. The gasket retainer as recited in claim 1 , and further comprising at least two fastener apertures disposed on opposing sides of said gasket-capturing aperture.3. A gasket retainer for use in a fluid delivery system claim 1 , comprising:a base member formed of a substantially flat sheet of material; and a gasket-capturing aperture having a non-convex periphery disposed in said base member;wherein the gasket-capturing aperture is D-shaped with a major diameter sufficiently large to allow passage of a circular element therethrough and a minor diameter sufficiently small to engage a cavity, ...

Marked keg/cask seal, and method for determining the age of a keg/cask seal

A keg/cask seal for a keg or cask containing a beverage is disclosed. A color mark is arranged in a geometrically defined shape on a top side of the keg/cask seal. The geometrically defined color mark allows a conclusion to be drawn about the time lapsed since the keg/cask seal was installed.

Seal of a vacuum valve and production method therefor

A vacuum valve including a valve seat having a valve opening defining an opening axis and a first seal surface circumferential around the valve opening and having a closure element having a second seal surface corresponding to the first seal surface. The first seal surface and/or the second seal surface has an at least two-component material composite having a metallic carrier component and a polymer-based seal material. The metallic carrier component defines an inner and outer carrier region and has a plurality of defined depressions extending in the inner carrier region by the seal surface. The seal material is applied to the carrier component such that a defined profile of the seal material is provided on the outer carrier region and a part of the seal material extends at least into a part of the depressions of the carrier component and fills them at least halfway.

Shim seal assemblies and assembly methods for stationary components of rotary machines

A seal assembly for a rotary machine is provided. The seal assembly includes a shim seal including multiple seal plates forming a box shaped shim seal. The box shaped seal includes a plurality of cuts at two opposing sides or corners for allowing high pressure fluid to occupy the cavity of the box-shaped shim seal. The seal may be inserted within one or more slots between adjacent stator components of the rotary machine.

RESTRAINED GASKET FOR PLASTIC PIPES

A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides an internally restrained pipe joint including a bell with a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of toothed, rigid restraining segments is at least partially embedded in the gasket. 1. A pipe joint comprising:a gasket located within an annular groove of a bell socket of a first plastic pipe, the gasket including (a) an inner surface that defines a circumference of a first length and (b) a plurality of segments partially embedded within the gasket, each segment of the plurality of segments having opposing lateral edges and a second length extending to and between the opposing lateral edges; anda second plastic pipe inserted through an opening defined by the inner annular surface,wherein a sum of all of the second lengths is no more than 70% of the first length.2. The pipe joint of claim 1 , wherein the sum of all of the second lengths is no more than 50% of the first length.3. The pipe joint of claim 1 , wherein the sum of all of the second lengths is between 45% and 55% of the first length.4. The pipe joint claim 1 , wherein the plurality of segments is arranged in groups of three segments claim 1 , each group of three segments being separated from each adjacent group of three d segments by a first distance that is longer than the second length.5. The pipe joint of claim 4 , wherein each group of three segments includes a middle segment claim 4 , opposing adjacent segments claim 4 , and a second distance between ...

Seal

A seal, in particular for a fluid line connector, includes: a tubular body with an inner surface, an outer surface, a first axial end, and a second axial end; a first elastomeric layer arranged on the inner surface; and a second elastomeric layer arranged on the outer surface. In an embodiment, the first elastomeric layer extends over the first axial end of the tubular body and merges into the second elastomeric layer.

GASKET FOR A HEAT-CHARGED CAVITY OF AN APPLIANCE WITH MICROWAVE HEATING FUNCTION

The present invention relates to a gasket () for a heat-charged cavity of an appliance with microwave heating function. The gasket () comprises a first gasket part (), a second gasket part () and an interconnecting gasket part (). The first gasket part (), the second gasket part () and the interconnecting gasket part () are elongated and their longitudinal axes are arranged parallel to each other. The first gasket part () and the second gasket part () are impermeable for steam, vapour and/or humidity. The first gasket part () is made of an elastic material or a compound of elastic materials and is resistant against high temperatures. The second gasket part () is resistant against high temperatures and includes at least on electrically conductive material. The interconnecting gasket part () is resistant against high temperatures. The interconnecting gasket part () is permanently or removably connected to the first gasket part () at one side and to the second gasket part () at another side of said interconnecting gasket part (). The gasket () is formed as an integral part. Further, the present invention relates to an appliance with microwave heating function for domestic or professional use, wherein the appliance includes at least one heat-charged cavity enclosed by at least one gap at least partially filled by the gasket (). 1. A gasket for a heat-charged cavity of an appliance with microwave heating function , whereinthe gasket comprises a first gasket part, a second gasket part and an interconnecting gasket part,the first gasket part, the second gasket part and the interconnecting gasket part are elongated and their longitudinal axes are arranged parallel to each other,the first gasket part and the second gasket part are impermeable for steam, vapour and/or humidity,the first gasket part is made of an elastic material or a compound of elastic materials and is resistant against high temperatures,the second gasket part is resistant against high temperatures and ...

FLEXIBLE COVER FOR A MISSILE CONTAINER

A flexible cover comprising at least one, so-called composite, layer, formed from a composite material consisting of at least one fabric and at least one elastomer and a flat metal blade secured to the composite layer by elastomer and comprising pre-cut lines for fragilisation of the flexible cover, the pre-cut lines being arranged so as to create areas in the form of petals, the composite layer and the metal blade being designed so as to return to an initial position once the flexible cover has been opened. 1. A flexible seal that is intended to be mounted on a missile container and is capable of opening under a thrust , the flexible seal comprising:at least one composite layer made of a composite material that includes at least one fabric and at least one elastomer; andat least one flat metal sheet, rigidly connected to said composite layer by the elastomer and including pre-cut lines of weakness in the flexible seal, the pre-cut lines being arranged so as to create petal-shaped regions.2. The flexible seal according to claim 1 , wherein the at least one composite layer includes two composite layers arranged on either side of the metal sheet.3. The flexible seal according to claim 1 , further comprising an anti-friction covering on a surface intended to be positioned towards the interior of the container.4. The flexible seal according to claim 1 , wherein the pre-cut lines are arranged radially with respect to the center of the flexible seal.5. The flexible seal according to claim 1 , wherein said at least one composite layer and the metal sheet are arranged such that at least some of the pre-cut lines of the metal sheet are parallel to at least one direction of the thread of the fabric of the composite material of the composite layer.6. The flexible seal according to claim 1 , wherein the metal sheet is a single part in which said pre-cut lines are made.7. The flexible seal according to claim 1 , wherein the metal sheet comprises recesses for receiving a portion ...

Cylindrical gasket, method for manufacturing the same, and insertion-type exhaust pipe joint using the cylindrical gasket

A cylindrical gasket 27 includes a reinforcing member 70 made from a compressed belt-shaped metal wire net 5 , a heat-resistant material 71 filled in meshes of the belt-shaped metal wire net 5 of the reinforcing member 70 , and pores which are dispersedly distributed in the reinforcing member 70 and the heat-resistant material 71 . An inner peripheral surface 23 , an outer peripheral surface 24 , and annular end faces 25 and 26 of the cylindrical gasket 27 are each formed by a smooth surface in which the heat-resistant material 71 and the reinforcing member 70 are present in mixed form. In the cylindrical gasket 27 , the volume contents of the reinforcing member 70 , the heat-resistant material 71 , and the pores are 32 to 60%, 5 to 58%, and 10 to 35%, respectively.

Rubber coated metal seal with integrated inner seal and outer seal portions

A gasket includes a first compressible portion, a second incompressible portion integrally formed with the first compressible portion, and a flexible coating disposed on one or more of the first compressible portion and the second incompressible portion. The first compressible portion is substantially planar and includes a plurality of layers, and the second incompressible portion is substantially planar and includes a first of the plurality of layers.

ELECTROLYZER SPACER AND ELECTROLYZER EQUIPPED WITH SUCH A SPACER

A spacer for an electrolyzer cell of substantially annular shape comprises: 1. A spacer for an electrolyzer cell of substantially annular shape comprising:a peripheral part having two parallel principal faces opposite each other, the distance separating the two principal faces defining a first thickness of the spacer; andan internal part having a second thickness strictly less than the first thickness of the spacer,the peripheral part and the internal part being in one piece and connected to each other forming an internal annular shoulder so that the internal part has a substantially annular intermediate face extending in a plane parallel to the two principal faces of the peripheral part and situated between the two principal faces.2. The spacer according to claim 1 , wherein the internal part further includes a substantially plane annular bearing face coplanar with one face of the two principal faces of the peripheral part.3. The spacer according to claim 1 , further comprising a metal core and an electrically insulative envelope covering the metal core at least over the areas of the spacer in contact with an internal space of the electrolyzer cell in an assembled state.4. The spacer according to claim 3 , further comprising at least one groove formed in the metal core claim 3 , extending substantially along the circumference of the spacer claim 3 , and in at least one of the two principal faces and the substantially annular intermediate face claim 3 , the at least one groove forming a housing for a sealing line in the assembled state of the spacer.5. The spacer according to claim 3 , wherein the electrically insulative envelope includes at least one rib claim 3 , extending substantially along the circumference of the spacer claim 3 , and claim 3 , in the rest state of the spacer claim 3 , protruding from at least one of the two principal faces and the substantially annular intermediate face claim 3 , the at least one rib forming a sealing line in the assembled ...

Gasket having a pliable reslient body with a perimeter having characteristics different than the body

A single piece gasket is disclosed having a skeletal member, typically metallic, and a pliable body. The pliable body includes a first portion having a first firmness and a second perimeter portion have a firmer consistency. When such a composite body is placed under compression, the perimeter will tend to limit the flow of the softer inner material past the firmer perimeter region or portion of the gasket. In this manner, creep or overrun of the less firm portion material will be reduced.

Gasket

There is provided a gasket comprising a rigid core () defining an aperture (). The core has a serrated profile () on at least one of its upper and lower outer surfaces and the core is divided into upper and lower parts () each having a respective outer surface () and also an inner surface () opposite the outer surface. The gasket also includes an optional sealing facing () on the at least one outer serrated profile surface, wherein an inner insulating layer () is located between the said upper and lower parts so that it is operable to substantially reduce electrical conduction between the said upper and lower parts. There is described a method of production of the gasket and use of the gasket. 157-. (canceled)58. A gasket comprising a rigid core comprising a first part and a second part , the first part and the second part each comprising an inner surface and an outer surface , wherein at least one of the outer surface of the first part and the outer surface of the second part comprises a serrated profile; and an inner insulating layer between the inner surface of the first part and the inner surface of the second part to substantially reduce electrical conduction between the first part and the second part wherein the insulating layer has a mean thickness of 50 μm to 300 μm.59. The gasket of claim 58 , wherein the rigid core defines an aperture.60. The gasket of claim 58 , further comprising a sealing facing layer on the at least one outer surface comprising the serrated profile.61. The gasket of claim 58 , wherein the inner insulating layer has a dielectric strength in kV/mm at 20° C. and 55% humidity of at least 10 kV/mm.62. The gasket of claim 59 , wherein the inner surface of at least one of the first part and the second part is chamfered at an edge that contacts the inner insulating layer and that is proximate to the aperture defined by the rigid core.63. The gasket of claim 58 , wherein the inner surface of at least one of the first part or the second part is ...

SPACER AND GASKET ASSEMBLY FOR USE ON AN AIRCRAFT

A spacer and gasket assembly is shown for receipt between a static structure having a surface and fastener holes therethrough and a removable structure having a surface and fastener holes. The static structure and removable structure are engaged through a multiplicity of fasteners having a shaft diameter. The fasteners are adapted to apply a compression on the gasket between the static structure and the removable structure. The static structure and the removable structure have opposed, typically flat, facing surfaces. The spacer and gasket assembly comprising a substantially non-compressible spacer adapted for receipt between the static structure and the removable structure having a spacer thickness. A gasket has a sticky, deformable, flowable, elastomeric body and a skeleton having a skeleton thickness, the skeleton substantially integral with the body. The gasket has an uncompressed gasket thickness. The spacer and the gasket are adapted to be placed substantially between the facing walls of the static structure and the removable structure and the removable structure will compress and deform the gasket when the fasteners are torqued down. 1. A spacer and gasket assembly for receipt between a static structure having a surface and fastener holes therethrough and a removable structure having a surface with fastener holes , the spacer and gasket assembly comprising:a substantially non-compressible spacer having a spacer thickness; anda gasket having a sticky, deformable, pliable, elastomeric body, the gasket having an uncompressed gasket thickness greater than the spacer thickness; and 'wherein a sticky, elastomeric gel, for applications at the time the fasteners are used for coating at least part of some of the multiplicity of fasteners.', 'a multiplicity of fasteners having a shaft with a shaft diameter, the fasteners adapted to apply a compression on the spacer and the gasket between the static structure and the removable structure;'}2. The spacer and gasket ...

A GASKET

A gasket having concentric or spiral serrations around the aperture on each side of the gasket, and wherein a facing is secured to such serrations, wherein each facing comprises a first layer which is in contact with a respective set of such serrations and a second layer which is in contact with the first layer. The first layer could be of a polyaryletherketone or polyimide, and the second layer could be of graphite or vermiculite. The serrations are designed to avoid damage to the first layer. An intact first layer can supply a property to the facing which may be absent in the second layer; for example, good dielectric properties 1. A gasket comprising a top surface , a bottom surface , and an aperture , wherein the top and bottom surfaces each comprise serrations around the aperture , the gasket further comprising a first facing secured over the serrations on the top surface and a second facing secured over the serrations on the bottom surface;wherein each facing comprises a first layer which is in contact with the respective top or bottom surface serrations and a second layer which is in contact with the first layer opposite the respective top or bottom surface.2. The gasket according to claim 1 , wherein the first layer introduces or increases a mechanical claim 1 , chemical claim 1 , or electrical property which is absent or inadequate in the second layer.3. The gasket according to claim 1 , wherein the first layer can conform to a shape of the serrations and can resist piercing caused by the serrations.4. (canceled)5. The gasket according to claim 1 , wherein the first layer is formed by drying or curing a flowable coating composition.6. The gasket according to claim 1 , wherein the first layer comprises a mean thickness of at least 50 μm and not exceeding 300 μm.7. The gasket according to claim 1 , wherein the first layer comprises a substantially incompressible polymeric material and the second layer comprises a compressible inorganic material.8. The gasket ...

SPHERICAL ANNULAR SEAL MEMBER AND METHOD OF MANUFACTURING THE SAME

A spherical annular seal member is used in an exhaust pipe joint and includes a spherical annular base member defined by a cylindrical inner surface , a partially convex spherical surface , large- and small-diameter side annular end faces and of the partially convex spherical surface , and an outer layer formed integrally on the partially convex spherical surface of the spherical annular base member . The spherical annular base member includes a reinforcing member made from a metal wire net and a heat-resistant material containing expanded graphite filling meshes of the metal wire net of this reinforcing member and compressed in such a manner as to be formed integrally with this reinforcing member in mixed form. In the outer layer , the reinforcing member, the heat-resistant material, and the solid lubricant are integrated in mixed form. 1. A spherical annular seal member for use in an exhaust pipe joint , comprising: a spherical annular base member defined by a cylindrical inner surface , a partially convex spherical surface , and large- and small-diameter side annular end faces of said partially convex spherical surface; and an outer layer formed integrally on said partially convex spherical surface of said spherical annular base member ,wherein said spherical annular base member includes a reinforcing member made from a metal wire net and a heat-resistant material containing expanded graphite and compressed in such a manner as to fill meshes of the metal wire net of said reinforcing member and to be integrated with said reinforcing member in mixed form,wherein, in said outer layer, a heat-resistant material containing expanded graphite, a solid lubricant consisting of a lubricating composition containing a polytetrafluoroethylene resin, a tetrafluoroethylene-hexafluoropropylene copolymer, and hexagonal boron nitride, and a reinforcing member made from a metal wire net are compressed such that said heat-resistant material and said solid lubricant are filled in ...

GASKET WITH ELECTRICAL ISOLATING COATINGS

An electrically isolating gasket is disclosed wherein a coating layer is disposed on at least one conductive surface, and in some embodiments, on all surfaces or at least all of the conductive surfaces. The electrically isolating gasket includes a core gasket component, a ring seal component, and a non-conductive inner seal component. The coating layer can be, for example, polyimide, polyamide, ceramic, and aluminum oxide. 1. An electrically isolating gasket comprising:a core gasket component, the core gasket component having a disc shape with an inner surface defining a first inner diameter; anda ring seal component, the ring seal component have an outer surface shaped to cooperatively engage the inner surface of the core gasket component and an opening opposite the outer surface wherein the opening defines a second inner diameter that is less than the first inner diameter;a non-conductive inner seal component, the non-conductive inner seal component having an inner surface defining a third inner diameter that is less than the second inner diameter, the non-conductive inner seal component having an outer surface with a radially extending protrusion shaped to fit within the opening of the ring seal such that the nonconductive inner seal component and the ring seal component are compression coupled; anda dielectric coating formed on at least the core gasket component and the ring seal.2. The electrically isolating gasket of claim 1 , wherein the core gasket component is made from metal.3. The electrically isolating gasket of claim 2 , wherein the metal is stainless steel.4. The electrically isolating gasket of claim 1 , wherein the ring seal component is made from metal.5. The electrically isolating gasket of claim 4 , wherein the metal is stainless steel.6. The electrically isolating gasket of claim 1 , wherein the non-conductive inner seal component is a fluoropolymer.7. The electrically isolating gasket of claim 6 , wherein the fluoropolymer is ...

Metal gasket material plate and method for manufacturing the same

A metal gasket material plate includes a sealing layer formed by layering a chemical coating layer, an adhesive layer, and a rubber coating layer in this order on at least one side of a metal plate. The chemical coating layer is formed by a thermosetting surface preparation agent including inorganic compound particles and a metal alkoxide compound. The adhesive layer is formed by an adhesive including an epoxy compound and an anti-corrosive pigment. The rubber coating layer is formed by a rubber agent including rubber.