Abstract: Precompressed sealing tape for sealing a joint has a foam strip and a foil-type wrapping, which completely surrounds the foam strip and thus holds it in a precompressed state. A first transverse surface of the foam strip is pressed against a strip-like element, which is arranged inside the wrapping and has a certain resistance to bending in the transverse direction of the foam strip. A second transverse surface of the foam strip, which is arranged opposite to the first transverse surface, is firmly connected to the foil-type wrapping.

Abstract: A heat-tolerant capillary seal for a burn chamber preferably includes a pass-through in an outlet of the burn chamber and an adhesion material in a gap between the pass-through and the interior of the outlet.

Abstract: An improved floating collar assembly for gas turbine combustion units consists of a sheet metal collar with a flat flange and an E seal that is pre-compressed within a block of epoxy. The collar fits over a corresponding fuel nozzle burner tube and is retained on a cap assembly by a flat plate. During assembly, the collar is loose so that it floats, which makes cap assembly easy. During operation, the epoxy used to pre-compress the E seal heats up and burns off, whereupon the E seal opens up and produces a seating load between the collar and plate that is high enough to keep the collar from rotating and thereby reduce collar wear.

Abstract: A method and apparatus for planarizing a substrate are provided. A substrate carrier head with an improved cover for holding the substrate securely is provided. The cover may have a bead that is larger than the recess into which it fits, such that the compression forms a conformal seal inside the recess. The bead may also be left uncoated to enhance adhesion of the bead to the surface of the groove. The surface of the cover may be roughened to reduce adhesion of the substrate to the cover without using a non-stick coating.

Abstract: A seal mechanism for a transverse crop conveying auger in a header that incorporates a flexible-sealant-filled labyrinth at each end of a tube-like auger central core that allows rotation of the auger without allowing entry of dirt, debris, or other contaminants into the bearing housing area positioned inside of the tube-like central core of the auger.

Abstract: An integrated component having a substrate, the substrate having a cavity which surrounds a mechanical structure. The cavity is filled by a fluid of a specific composition under a specific pressure, and the mechanical properties of the mechanical structure are influenced by the fluid.

Abstract: A gasket interface for a fluid filter is described. The gasket interface described includes a seal disposed between plate members, where at least one of the plate members is movable with respect to the other. The seal includes a seal position and a release position. In the seal position, the seal is compressible along an axis when the plate members move toward each other, while the seal is also expandable along another axis as a result of being compressed. The seal has a laterally extending portion to provide a sealing configuration. In the release position, the seal is non-compressed when the plate members move away from each other and the laterally extending portion is withdrawn so as not to be laterally extended and be removed from the sealing configuration. The gasket interface provides a unique sealing configuration that does not require end-to-end engagement of the sealing parts.

Abstract: The present invention relates to a joint seal for sealing a component joint, which comprises an insulation material in an internal joint area and a sealing material in at least one front-side joint edge area. The insulation material comprises a single-component, moisture cross-linking, elastic polymer foam and the sealing material is a sealant which is vapor-diffusion tight, directly adjoins the insulation material, is single-component, moisture cross-linking, and sprayable before the curing, as well as having an elasticity which is essentially equal to or greater than that of the insulation material. Furthermore, a method for producing the joint seal is described.

Abstract: The present invention is directed to a sealing member for establishing a water resistant seal between two elements which includes a resilient gasket having opposed gasket surfaces for engagement between the two elements; and a water resistant coating applied to the gasket. The water resistant coating providing releasable adhesive sealing contact with at least one of the elements. The present invention is also directed to a method of making a gasket seal for an electrical box.

Abstract: A system and method for sealing around openings in a telephone handset casing in which externally facing components are positioned. An exemplary method comprises applying a bead of liquid sealant around the opening in a telephone handset casing, allowing the bead to partially cure to form a skin yet still having a malleable consistency, and placing the externally facing component against the bead to deform the bead in conformance with the surface of the component, to provide a close seal between the casing and the component.

Abstract: A method of positioning a shaft and associated seal in turbomachinery utilizing electromagnetic bearings. The method includes applying electrical power to the electromagnetic bearings' windings, the shaft center being in a first position and the shaft being in contact with the associated seal. Power adjustment to the electromagnetic bearings moves the shaft. Shaft movements can manipulate the seal, the movements being of decreasing amplitude to a position in which the seal is out of contact with the shaft when the shaft is rotated at its centered position during normal operation. The shaft is in its centered position during normal operation when the shaft axis is substantially coaxial with an axis of the electromagnetic bearings. Movements of decreasing amplitude may include oscillations of decreasing amplitude about one or more axes, or may include a spiral rotation with a decreasing radius to move the shaft center from initial to final positions.

Abstract: In order to make an elastomeric sealing element available which is also suitable, in particular, for sealing tasks, with which the highest thermal and chemical resistance is partially required, and at the same time to save on costs and resources it is suggested that the elastomeric sealing element comprise a first and a second sealing section, wherein the first sealing section is produced with the use of a first elastomeric material containing a first cross-linking system, wherein the second sealing section is produced with the use of a second elastomeric material containing a second cross-linking system, wherein the first and the second sealing sections border directly on one another in a seam area and their elastomeric materials are materially joined to one another, and wherein at least one of the two cross-linking systems comprises, in addition, a cross-linking agent for the respectively other elastomeric material.

Abstract: The invention relates to an airbag module for protecting an occupant of a vehicle in the event of a collision, comprising a cushion (11) that can expand with the gas provided by a generator with at least one ventilation hole (13) sealed with a patch (21) including a silicone membrane (23) intended to break due to the effect of the internal pressure in the cushion (11) so as to allow gas discharge, in which the fabric of the cushion (11) does not have a silicone coating, the patch (21) is formed by said membrane (23) joined at its edges to two pieces (25, 27) of fabric and fixed to the cushion (11) by means of a seam (31). The invention also comprises a process for manufacturing the cushion (11).

Abstract: A resin molten in a pot portion 59 is molded by being loaded via a gate 48 into a cavity, which has a rectangular parallelepiped shape in plan view and is formed of both molds 1 and 2, which are a second mold 2 and a first mold 1 that can make or release contact with the second mold 2. The pot portion 59 is provided at either one of the molds 1 and 2 and constituted of recess portions 54c located at prescribed intervals at the cavity. The recess portions 54c have a bottom surface constituted of part of a moving member 60 movable toward an opening portion. The gate 48 is structured so that one side of the cavity and the long side of the pot portion 59 are connected with each other.

Abstract: A method for increasing puncture resistance of a thermoplastic or elastomeric membrane for use in water proofing of subterranean structural substrates, the method comprising bonding a layer of cushion material to the membrane, the cushion material comprising a cellular foam material and being adapted to conform around minor irregularities in a surface of the structural substrate.

Abstract: A moisture curable composition capable of cure to an elastomeric body comprising (a) a diluted polymer comprising (i) a silicon containing polymer of the formula X-A-X1 where X and X1 are independently selected from silyl groups which contain one or more condensable substituents per group and A is a polymeric chain having a number average molecular weight (Mn) of at least 132 000; and a degree of polymerisation of at least 1800. (ii) an organic extender and/or plasticiser ?which diluted polymer is obtained by polymerisation in the presence of the said organic extender and/or plasticiser (b) a suitable cross-linking agent which comprises at least two groups which are reactable with the condensable groups in the diluted polymer, (c) a suitable condensation catalyst and optionally (e) one or more fillers.

Abstract: The invention seeks to provide a gasket for a quick connector that is inexpensive to fabricate, providing sealing over a wide range of fluid pressures, while presenting engagement forces that are small for flow diameters of large size. More precisely, the present invention provides a sealing gasket of elastically deformable material having a Y-shaped longitudinal axial section for use in a quick coupling for a fluid duct, the gasket (10) comprising an I-shaped stem (1) and a V-shaped portion (2), flash (3p, 3s) of join plane (P1) of the gasket being located between the I-shaped stem (1) and the V-shaped portion (2), preferably substantially perpendicularly to the longitudinal axis (P2) of the gasket (10). The invention also provides the use of such a gasket, and a mold and a method for fabricating such a gasket.

Abstract: A sealant is configured to activate (e.g., cure and/or foam) in two stages (e.g., of two distinct portions of time). Advantageously, the sealant can exhibit self supporting characteristics during the second activation at least partly because of the first activation.

Abstract: A sealant, method for making the sealant, and method for applying the sealant includes a preformed at least partially hardened first quantity of sealant and a preformed at least partially unhardened second quantity of sealant. The first quantity of sealant is formed into a concave shell with an internal cavity. The second quantity of sealant is positioned within the internal cavity of the shell. The second quantity of sealant is maintained at a temperature sufficiently below the hardening temperature of the second sealant, such that said second sealant is at least partially retarded from hardening. The first and second quantities of sealant are packaged together for delivery to a substrate, such as a fastener.

Abstract: Injection bonded articles comprised of a rigid core and secured together with an elastomeric material network which also forms seals and encapsulates at least a portion of the rigid core. The elastomeric material is selected to be compatible with the material comprising the rigid core to create a chemical and mechanical bond therebetween. Injection bonding and over-molding techniques are used to fabricate an electrodeionization apparatus spacer comprised of mated rigid segments secured by a unitary elastomeric material network that also forms internal and external seals that fluidly isolate one or more of inlet ports, resin cavities, and outlet ports as well as throughports. Injection bonding and over-molding techniques can also be used to fabricate other articles comprised of multiple segments.

Abstract: A sealant template for use in sealing a joint between a component and a vessel to which the component is attached comprises a support member on which are adhesively adhered inner and outer template sections. The inner template section has a ring-shape having an outer profile similar to but smaller than the periphery of the base of the component, and the outer template section has a ring-shape having an inner profile similar to but larger than the periphery of the base of the component. When the inner template section is adhesively adhered to the base of the component and the outer template section is adhesively adhered to the vessel surface, a ring-shaped gap exists between the inner and outer template sections at the joint between the component and the vessel to facilitate application of sealant to the joint. The inner and outer template sections may be provided with tabs to facilitate removal of the template sections from the backing member and adherence thereof to the component and the vessel.

Abstract: The present invention provides a seal apparatus for a transmission pump. The seal apparatus includes a ring seal configured to seal a gap defined between a transmission pump body and a hub in order to reduce hydraulic fluid leakage. An O-ring is placed around the ring seal such that the O-ring engages the transmission pump body in an axial direction. A retainer ring is disposed around the hub, and a torque converter seal is disposed radially between the transmission pump body and the hub. The torque converter seal applies an axial force which is transferred through the retainer ring in order to compresses the O-ring against the transmission pump body to seal in parallel with the ring seal such that the rate of hydraulic fluid leaking from the transmission pump is reduced. A corresponding method for sealing a transmission pump is also provided.

Abstract: A method of forming a sealing element for a blowout preventer, and a sealing element. A first step involves providing a conical mould having more than one part consisting of an inner mandrel adapted to shape an interior sidewall of a sealing element and an outer mould adapted to shape an exterior sidewall of the sealing element. A second step involves saturating wear resistance fabric with liquid polymer, the liquid polymer being suitable for use as a resilient sealing element when set. A third step involves covering the inner mandrel with the saturated fabric. A fourth step involves assembling the conical mould. A fifth step involves pouring liquid polymer into the mould and allowing the liquid polymer to set, thereby forming the sealing element with the wear resistant fabric embedded in the interior sidewall. A sixth step involves removing the sealing element from the conical mould.

Abstract: To enable the gasket (3) to securely contact with the box type body (2) when both the body and the cover (1) are downsized and thinned, and prevent fluid leakage through the seal by lessening repulsion of the seal at the time of sealing the clearance between two members (1, 2) to avoid excessive deformation of the cover (1), the gasket (3) and the structure for sealing the clearance between the two members is made such that the main body (31) is adhered to the bottom surface (11) of the cover (1) having the peripheral wall (12), the step face (36) is formed by the body (31) and the lip portion (32) formed at the tip side of the body (31), the contact surface (35) is formed by the side wall (34) of the body (31) and the peripheral wall (12), and the step surface (36) is positioned at the outside from the lip portion (32).

Abstract: An acoustic seal arrangement is provided for a motor vehicle. The vehicle has a floor pan defining the floor of a passenger compartment. The vehicle also has an energy storage module. The energy storage module has a top wall with an outer perimeter portion and the energy storage module is suspended in spaced relation beneath the floor pan. A ring-shaped seal of compressible material is positioned between the outer perimeter portion of the energy storage module and the floor pan and in compression therebetween to form a sealed space and impede the transmission of noise into the sealed space between the top wall of the energy storage module and the floor pan. Accordingly, that portion of the vehicle floor pan that lies above the sealed space is protected from exposure to road noise, thereby quieting the passenger compartment.

Abstract: A pipe coupling assembly is disclosed including a fitting having an opening surrounded by an inwardly facing conical surface. A pipe element has an end portion with an outwardly facing conical surface that fits within the opening and engages the inwardly facing conical surface. A shoulder is positioned on the pipe element. A retaining ring surrounds the pipe element and engages the shoulder. A fastener connects the retaining ring to the fitting. The fastener is adjustably tightenable to draw the retaining ring toward the fitting and force the pipe end portion into engagement with the fitting. One or more seals may be positioned between the engaged conical surfaces. The seal may be made of graphite for high temperature applications. An adapter ring that fits between the pipe and the fitting is also disclosed. The adapter ring has conical surfaces that engage the conical surfaces of the pipe and the fitting.

Abstract: A combined global positioning system receiver and two-way radio communications unit (GPS/radio unit) that is configured for wirelessly communicating with one or more other such units and that includes a substantially waterproof enclosure for protection of the electronic components contained therein is provided. The substantially waterproof enclosure includes first and second cooperatively mated housing sections which, when mated, form an internal compartment or chamber for enclosing electronic components of the GPS/radio unit. The waterproof enclosure may further include a cover positioned over a plurality of tubular structures which protrude from a top end wall of the second housing section. Also provided is a method of waterproofing a GPS/radio unit including a number of different techniques for waterproofing different features and elements of the enclosure.

Abstract: The invention concerns a support (30) for storing, transporting and using devices (10) for applying a sealing compound onto an element projecting on a surface. The invention is characterised in that it comprises a plurality of said devices borne by a substantially planar base plate (32) and wherefrom the latter can be detached, and each device includes a cap (11) designed to cover entirely said element and containing a predetermined amount of sealing compound in frozen state. The invention is useful for producing impermeability to fluids at rigid connecting elements such as rivets, bolts or the like, for protecting projecting elements of structures against electromagnetic effects such as lightning.

Abstract: A tool and method is provided for the installation of radial seals such as for example O-rings into radial grooves. The tool and method can be used to install an O-ring into a dovetailed groove of an items such as a valve stem. The tool includes a first part having a first face at an angle relative to a plane in which the plane lies and a second part having a second face opposed to the first face and that a second opposite angle relative to the plane in which the seal lies. Compressing the first and the second part towards the two faces together squeezes the seal and urges it into the groove.

Abstract: The present invention is directed to an expandable pre-formed plug that is suitable for sealing and/or structurally reinforcing a structure having surfaces defining a space therebetween. The plug is comprised of at least an expandable inner core having an outer surface and a transportable outer skin that preferably substantially encapsulates the core. In a preferred embodiment, the shape of the unexpanded plug is designed to mate with the surfaces that define a space therebetween upon expansion. The adhesive skin is generally dry to the touch at room temperature, however, upon initiation of expansion, the inner core expands and the surrounding skin is displaced in a coordinated manner. After some period of expansion, the outer skin preferably durably adheres or bonds to the walls of the surfaces defining a space therebetween and the outer surface of the core. A method for using such a plug is also disclosed.

Abstract: The invention provides a hermetic seal and a method of making a hermetic seal having the steps of providing a first member of a first material having a flange thereon, providing a second member of a second material having a slot thereon for accommodating the flange in said slot such that there is a gap between the slot and the flange, providing a sealant in the slot, and heating the sealant such that the sealant fills at least a portion of the gap between the flange and the slot for forming a hermetic seal therebetween. Advantageously, the slot and flange design of the inventive hermetic seal produces a three-dimensional compressive state of stress thereby providing a joint design of improved reliability.

Abstract: A valve body has one or more integral seal retention grooves and one or more interior hollows which may be manufactured using frictional or other types of welding to join two previously formed portions through at least one cylindrical web. Forging or casting valve body portions to near-net-shape prior to joining minimizes machining necessary to achieve a final desired shape. One or more interior hollows and an integral seal retention groove are formed in the welded valve body from features present on the portions joined by welding to form the body. Increased valve durability and reduced metal wear arise from the reduced valve body weight and correspondingly reduced impact loading. An elastomeric seal may be cast and cured in place in a seal retention groove.

Abstract: A valve seal assembly comprising a valve body having one or more peripheral integral seal retention grooves and one or more peripheral elastomeric seals, each seal being cast-in-place in an integral seal retention groove having adhesion-inhibiting surfaces and offset circular serrations of predetermined height on opposing groove walls. Adhesion-inhibiting surfaces reduce or eliminate internal elastomer stress due to curing of cast-in-place elastomeric seals. Serrations on each of the opposing groove walls are offset to accommodate differing stress concentrations in the walls. Opposing groove walls preferably diverge peripherally. Offset serrations result in decreased metal fatigue from impact and bending stress. Offset serrations also improve valve sealing and increase valve service life by maintaining correct seal position on the valve body while minimizing background stress in the seal elastomer.

Abstract: In the method for producing a seal of a hollow chamber (12) of a glass tube (10), wherein the hollow chamber (12) contains fillers at a pressure greater than that of the atmosphere, the glass tube (10) is disposed in a working chamber (30) in which a pressure is generated that is greater than the pressure prevailing in the hollow chamber (12). The working chamber (30) contains a heating unit (50), which encompasses the glass tube (10) in a section (16) adjoining the hollow chamber (12) on at least one end and which melts the section (16) so that when melted, it is squeezed together by the pressure prevailing in the working chamber (30), thus sealing the hollow chamber (12) on at least one end. The glass tube (10) preferably constitutes a burner of a discharge lamp, in particular for use in motor vehicle headlights.

Abstract: A body of a motor vehicle includes a body element having a cavity and an opening to the cavity introducing a cavity protective fluid into the cavity. The body further includes a sealing element disposed in the cavity. The sealing element divides the cavity into two subcavities and a passage providing fluid communication between the two subcavities for the flow of cavity protective fluid. The passage includes a siphon.

Abstract: A method of forming a fluid tight seal between a first fluid pathway and a second fluid pathway a volume is defined between an outer surface of the first fluid pathway and an inner surface of the second fluid pathway. The surfaces are maintained in a given orientation and distance with respect, one to another, so as to achieve a desired capillaric property therebetween. A quantity of sealant is delivered to a junction region of said surfaces. The sealant is caused or permitted to flow into the defined volume, so as to achieve capillary balance. Only substantially sufficient sealant is delivered to fill the volume. The sealant is then caused or permitted to cure or set.

Abstract: A self-healing cable comprising a conductor and a water-swellable composition surrounding said conductor is disclosed. When the cable is damaged and water ingress reaches the water-swellable composition, the water-swellable composition expands and fills in any void, puncture or crack present, thus sealing the damage in the cable.

Abstract: The present invention is a physical barrier for an orifice in a panel member which includes a plastic carrier and a patch adapted to adhere to said carrier and the panel member. The present invention also includes a method of sealing an orifice in a metal panel member with a plastic carrier. Lastly, the present invention includes a thermoplastic which adheres to both plastic and metal upon the application of heat.

Abstract: A valve body having one or more integral seal retention grooves and one or more interior hollows which may be manufactured using frictional or other types of welding to join two previously formed portions through at least one cylindrical web. Forging or casting valve body portions to near-net-shape prior to joining minimizes machining necessary to achieve a final desired shape. Finish machining of certain valve body surfaces prior to joining is optional. One or more interior hollows and an integral seal retention groove are formed in the welded valve body from features present on the portions joined by welding to form the body. Such valve bodies have relatively high stiffness for their weight and require only limited machining to achieve a final shape. Increased valve durability and reduced metal wear arise from the reduced valve body weight and correspondingly reduced impact loading as the valve body moves to seal against a valve seat.

Abstract: In a gas turbine including a nozzle retaining ring having a first annular axially facing sealing surface and a shroud segment having an axial registering second surface. To minimize or prevent leakage flow between the retaining ring and shroud segments, a generally U-shaped seal having reversely folded U-shaped marginal portions is received in a cavity formed in the second surface. At operating conditions, the marginal portions seal against the base of the cavity and the first surface of the retaining ring to prevent leakage flow past the retaining ring/shroud segment interface. To install the seal, the seal body is first compressed and maintained in a compressed state by applying one or more wraps about the seal body and an epoxy is used to secure the seal when compressed in the cavity. At operating temperatures, the retention means releases the seal to engage marginal portions against opposite sealing surfaces of the shroud segments and retaining ring.

Abstract: A sealing system is disclosed which includes a preformed molded or extruded strip which may be used in conjunction with a fluid water-based polymeric sealant to cover or seal a joint or gap between two adjacent surfaces in a waterproof manner. The strip has a cross-sectional configuration which is generally trapezoidal, with two sides which will engage the two adjacent surfaces, a larger base which will be the only side of the strip visible upon installation, and a smaller base which will face the joint or gap between the two adjacent surfaces. The larger base may be either concave or convex to provide a pleasing appearance, the strip may be secured with a fluid water-based polymeric sealant.

Abstract: For sealing an annular space (4) between opening (2) in a wall or similar, member (1) and an object (3), extending through the opening (2), by introducing a sealing agent into the space (4), at least one bag (9, 10), into which the sealing agent is introduced, is positioned in the space (4). For this purpose, a supporting element (5, 6) is used, which can be positioned in the opening and to which a bag (9, 10) is fastened. The annular space (4) can be sealed easily and also liquid-tight in this manner.

Abstract: This invention relates to a method of repairing a moisture barrier separating a paper machine dryer drum from the dryer journal. Such processes of this type, generally, involve filling the cavity between the dryer drum steam intake pipe and the dryer journal with a flowable moisture barrier material. The flowable moisture barrier seals leaks in the dryer journal moisture barrier.

Abstract: A sealant, method for making the sealant, and method for applying the sealant includes a preformed at least partially hardened first quantity of sealant and a preformed at least partially unhardened second quantity of sealant. The first quantity of sealant is formed into a concave shell with an internal cavity. The second quantity of sealant is positioned within the internal cavity of the shell. The second quantity of sealant is maintained at a temperature sufficiently below the hardening temperature of the second sealant, such that said second sealant is at least partially retarded from hardening. The first and second quantities of sealant are packaged together for delivery to a substrate, such as a fastener.

Abstract: A method of and a device for sealing a gap (4) between a leadthrough (2) arranged in a constructional element (1) and an object (3) extending through the leadthrough (2), according to which an elastic sealing element (6) which surrounds the object (3) is placed in the gap (6) and is compressed in an axial direction of the leadthrough (2) and is fixed in its compressed condition with a fastening element (7).

Abstract: A method for sealing a gap (4) between a leadthrough (2) provided in a constructional element (1) and an object (3) extending through the leadthrough (2), the method including placing in the gap (4) a plurality of elongate sealing elements, formed as hot melt elements (5) provided with heat-activated blowing agent, and applying heat to the hot melt element from outside; and a sealing element used by the method.

Abstract: The invention concerns a new seal system for resolving the problem of the contamination of special fluids carried in pumps and moreover providing improved sealing by virtue of its special geometry and design. According to the invention, one of the elements to be connected can replace the seal owing to the fact that the seal system includes a combination of two elements to be connected with a fine film ring, one of the elements to be connected having a geometry able to effect a double indentation on the film ring. The invention may be used in pumps and circuits for fluids of the semiconductor industry. The three elements of the seal system, including the pump body, tube, and film ring, may be made of PFA.

Abstract: For manufacturing a seal between two machine parts (10, 11) which together enclose a space (14) in which, at least at times, high pressure and/or high temperature prevail, sealing means which contain a curable composition (30) are arranged between the two machine parts (10, 11). The curable composition (30) is applied directly onto one or both machine parts (10, 11) in liquid form at least in the area which does not directly adjoin the space (14) in which, at least at times, high temperature and/or high pressure prevails. The two machine parts are built in before the curing of composition (30). A sealing ring can be inserted between the two machine parts (10, 11) directly around the edge of the high pressure and high temperature space (14) or that edge can be slightly raised and the curable composition (30) can be used for sealing outside this area.

Abstract: Articles and methods are provided for sealing a closure having an opening through which more than one elongate article may project. A body is provided having a plurality of axially extending radially projecting ribs defining, between circumferentially adjacent pairs thereof, locations for receiving one or more of the elongate articles. The body includes longitudinally adjacent parts of resilient material and sealant material.

Abstract: A foam backed precured joint seal comprising a strip of precured elastomer wider than the joint to be sealed, the strip centrally adhered along its length to an elongated foam backing.