Abstract: The sealing system (1) for a machine comprises: a sealing element (4) that is movable back and forth along a direction (D) and that comprises a first recess (41) with first and second surfaces (42, 43), a component (2) of an assembly of the machine that comprises a second recess (21) with first and second surfaces (22, 23), and an elastic element (5). The first and second recesses (41, 21) face each other. The elastic element (5) is partially housed inside the first recess (41) and partially housed inside the second recess (21) so to apply forces on the first and second surfaces (42, 22, 43, 23) depending on where the sealing element (4) is positioned with respect to the component (2).

Abstract: A gasket in which a high sealing property can be ensured, and a method of producing such a gasket are provided. A gasket 1 is produced by spirally winding a belt-like composite body 13 having a metal mesh member 11 and expanded graphite 12 enveloped by the metal mesh member, and then compression molding the composite body into a tubular shape. The gasket includes a first sealing portion 21 placed in one axial end portion, and a second sealing portion 22 placed in the other axial end portion. The gasket has a sectional shape in which the composite body that is in a bent state overlaps in a radial direction. The composite body includes a bent portion which is radially bent in an acute angle shape.

Abstract: 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.

Abstract: A method and system for sealing between components within a gas turbine is provided. A first recess defined in a first component receives a seal member. A second recess defined in a second component adjacent the first component also receives the seal member. The first and second recesses are located proximate a hot gas path defined through the gas turbine, and define circumferential paths about the turbine axis. The seal member includes a sealing face that extends in a direction substantially parallel to the turbine axis. The seal member also includes a plurality of seal layers, wherein at least one of the seal layers includes at least one stress relief region for facilitating flexing of the first seal member.

Abstract: A seal including an acute bend having a first end portion and a second end portion, a first engagement extension extending from the first end portion of the acute bend, and a second engagement extension extending from the second end portion of the acute bend, wherein the second engagement extension is at an acute angle relative to the first engagement extension to define a partially enclosed volume between the first engagement extension and the second engagement extension.

Abstract: A spirally wound strip (300) is thicker in the middle and is curved on both sides. Short flats (306) are formed at each side by surfaces that converge towards each other. Soft sealant material (316) extends over the flats (306).

Abstract: The gasket includes a sealing strip comprising a resilient material, the resilient material comprising a chemically exfoliated vermiculite (CEV) component in a proportion of at least 25% w/w of the sealing strip, the said CEV component being at least partially derived from dry CEV, wherein the sealing strip does not include a carrier strip, made by the process of the application of a wet sealing strip material to a forming sheet to form a layer; partially drying the wet sealing strip layer on the forming sheet; removing the layer from the forming sheet; and (d) cutting the layer into strips suitable for use in the formation of a spirally wound gasket.

Abstract: A propeller shaft seal for sealing a propeller shaft in a stern tube, comprising a bi-direction rotational sealing body being fitted within the stern tube and wrapped around the propeller shaft in its axial direction; wherein the bi-direction rotational sealing body comprising two metallic helical coils stacking together in a way that is mirroring each other; wherein the first and second metallic helical coils being constructed from helically coiled metal tapes of varying widths linked together and coiled into rings and with the rings tightly bounded; and wherein at any one time during operation, a rotational direction of the propeller shaft is same as coiling direction of one of the two metallic helical coils but opposite to that of the other of the two metallic helical coils.

Abstract: 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).

Abstract: A spirally wound strip (300) is thicker in the middle and is curved on both sides. Short flats (306) are formed at each side by surfaces that converge towards each other. Soft sealant material (316) extends over the flats (306).

Abstract: The gastight sealing device associated with a functional clearance existing between two sectors of a turbomachine includes an annular plate wound up on itself over at least one turn, covering functional clearance.

Abstract: A gasket for sealing between a wall and a gasket support surface, such as between an oven housing and an oven door. The gasket includes a clip, the clip typically being made from a single strand of wire. The wire is bent into a head and a base, the base for engaging the gasket and head dimensioned for engagement with a wall for a support surface.

Abstract: A spiral wound gasket made of an elongate band with a portion of the elongate band jacketed by a resilient filler material, the jacketed elongate band wrapped in a plurality of overlapping turns to define a radially thick reinforcing member with the band in each turn enclosed by resilient filler material that abuts contactingly to the resilient filler material in an adjacent turn, the overwrapped portions of the elongate band defining opposing sealingly resilient lateral surfaces, with a leading portion and a trailing portion of the elongate band lacking the jacketing resilient filler material and adjacent turns of the leading portion secured together to fix an inner diameter and adjacent turns of the trailing portion secured together to fix an outer diameter. A method and apparatus is disclosed to wind an elongate band jacketed by a filler material around the perimeter of a die until a desired radially thick spiral wound gasket is formed.

Abstract: A spiral wound gasket made of an elongate band jacketed by a sealing material, with the elongate band wrapped in overlapping turns to define a radially thick gasket with an inner diameter for being exposed to a material to be sealed and an outer diameter, in which the jacket of the sealing material defines interior portions of the gasket having the sealing material with a first density between adjacent overlapping turns of the elongate band and defining opposing flange sealing faces of the sealing material with a second density lower than said first density, for use in sealing applications.

Abstract: A gasket having a plurality of superposed windings of a profiled metal strip spirally wound upon itself around a central axis, a plurality of windings of a strip of graphite interposed between at least some of the superposed windings of the metal strip, and a solid ring of graphite on the O.D. Two or more of the radially intermost windings on the I.D. are in surface-to-surface contact with each other without interposed sealing material.

Abstract: The present invention relates to a structural material for a gland packing, which can be used favorably as a gland packing in a spiral or annular form, and which exhibits extremely good sealing performance. The structural material for a gland packing is a braided cord 8 comprising a plurality of knitting yarns braided in a spiral. In this braided cord 8, elastic yarns 51c that have higher elasticity than the knitting yarns and extend in the lengthwise direction of the braided cord 8 without being intertwined with the knitting yarns are disposed in a penetrating fashion in at least a braid layer portion 8A that is on an outer peripheral surface 8b side of a reference plane X-X that passes through the cross sectional center 80 of the braided cord 8 and is parallel to the inner and outer peripheral surfaces 8b and 8c of the braided cord 8. The plurality of elastic yarns 51c are disposed in a cross section of the braided cord 8 in an aligned state parallel to the outer peripheral surface 8b of the braided cord 8.

Abstract: The present invention relates to a filler material (1) for a spiral wound gasket, and to a spiral wound gasket (W) using the fillermaterial (1). The fillermaterial (1) and the spiral wound gasket (W) according to the invention can be applied to various pipe joints and a joint portions of fluid equipments for sealing fluid such as liquid and gaseous body. The filler material (1) of the invention is obtained by removing, by blast treatment, a high density portion on a front surface (2A) or a back surface (2B) of a tape-like expansive graphite tape (2) formed by integrally pressurizing expanded graphite particles. The spiral wound gasket (W) is obtained by overlapping the filler material (1) and a hoop material (5) made of metal band plate with each other and winding them in the form of a spiral. The spiral wound gasket (W) is superior in productivity, and in flexibility, bending property and pliability, and exhibit excellent sealing property even at a low surface pressure.

Abstract: The present invention relates to the versatile packing material that has enough lubricating property, durability and sealing ability even if they are used under high PV value (speed of rotating shaft is more than 25 m/sec) to a shaft seal part of a fluid machinery where the rotating shaft rotates with high speed or under very high pressure to a seal of shuttle slide part of fluid machinery, and are high quality in durability, withstand pressure ability, heat resistance, lubricating property (low torque ability etc.), chemical resistance, sealing ability, low-emission ability and reducing production cost etc.

Abstract: A spiral-wound gasket includes a plurality of tightly wound metal windings to form a core. The windings each have a Chervon cross-section, wherein V-notched undulations of each winding registers with an adjacent winding at said notches. The edges of the windings are welded to form a pre-assembled integral composite that is installed into a J-shaped outer wrap or cover. Finally, the cover is closed about the core so as to entirely cover and encapsulate the core. In a preferred form, both the core and outer cover are formed of stainless steel materials.

Abstract: A gasket (1) is made by repetitively spirally winding a fiber (3) back on itself in a closed path. The gasket (1) so made has a multi-layer spiral winding (1) formed in a loop (5). The fiber (3) can be wound at a constant wrap rate to form a gasket with a uniform cross-section around the loop. Alternatively, the wrap rate can be varied, increased to increase cross-sectional bulk, and decreased to reduce cross-section bulk around the loop (5). Also, the spiral winding (7) can be applied over a core (13) of either strands of the fiber (3) or a dissimilar material providing a desired property such as resiliency, stiffness or others. For high temperature applications, a ceramic fiber (3) can be used. The gasket (1) can have any of various geometric configurations with or without a core (13).

Abstract: A candle filter holder and gasket assembly for holding a candle filter element within a hot gas cleanup system pressure vessel contians a filter housing (62), a candle filter attached to the filter housing and at least one associated gasket (74) and/or (76) where at least the one associated gasket has a construction that is selected from a single end rolled single spiral (75) or a two end rolled double spiral (71), both constructions having no separate center element and where the at least one gasket (74) and/or (76) functions to provide a seal between filtered gas and dirty or contaminated unfiltered gas within the gas cleanup system.

Abstract: A sealing member is provided which can be spirally wrapped around an elongate article (e.g., a cable) comprises a strip of sealing material (e.g., gel sealing material), and at least one series of gripping elements situated adjacent to the strip of sealing material and extending beside a longitudinal edge of the sealing material. In use, the gripping elements cause the sealing member to grip an elongate article around which it is spirally wrapped. The sealing member may also include a support strip to which the strip of sealing material and each series of gripping elements are attached.

Abstract: A resilient braided rope seal for use in high temperature applications includes a center core of fibers, a resilient canted spring member supporting the core and at least one layer of braided sheath fibers tightly packed together overlying the spring member. The seal provides both improved load bearing and resiliency. Permanent set and hysteresis are greatly reduced.

Abstract: An improved spiral wound gasket is disclosed that deters and redirects buckling. The invention includes the following: an integral inner ring, a gasket element, outer wraps and a outer guide ring. The integral inner ring is a winding of a thin strip of metal of at least seven revolutions that is overlapped over itself and secured to itself. The gasket element is wound around the integral inner ring and includes a second thin strip of metal and also a thin strip of filler material so as to form alternate layers of the thin strip of metal and filler material. The outer wraps are a winding around the circumference of the gasket element of a thin strip of metal. The invention also discloses a new outer guide ring that has a inside edge that, together with the outside circumferential edge of a spiral wound gasket, defines apertures. These apertures or expansion zones allow filler material to displace radially outwardly rather than radially inwardly to form buckles.

Abstract: A metal gasket excellent in sealing performance and capable of sealing with a small pressing force. The metal gasket comprises at least one metal sheath with a C-shaped cross-section and a ring elastic core surrounded by the metal sheath. The metal gasket provides a seal upon exertion of a force in the axis center direction. The metal sheath has a locally thin cross-section over the whole annular length, and when the metal sheath subject to a force and deformed, the deflection in the axis direction of the metal sheath due to concentrated stress on the thin worked portion causes the formation projections at both sides of the deflection which projections are pressed onto the sealing face to form air-tight seals.

Abstract: A spiral wound gasket able to compress and seal under various loads and provide sealing capabilities. The gasket generally includes a spiral wound portion and an outer guide ring to limit the compression of the gasket. The spiral winding is formed of interdisposed windings of a metal and an elastomer sealant. The metal winding has a non-planar cross-section to inhibit buckling under compression. The gasket is dimensioned such that the elastomer sealant winding has a width greater than the width of the metal winding which has a width greater than the thickness of the guide ring. In this manner, the sealant is compressed before compression of the metal winding which can be compressed until the outer guide ring is encountered.