Abstract: A sealing method and apparatus involves positioning sealant carriers in a gap between first and second components to be sealed. Sealant is applied to a first major surface of the sealant carriers. As the first and second components are tightened together, the carriers are compressed and cause sealant to travel from the first major surface and through the carriers to a second major surface which is opposed to the first major surface. The sealant carriers may be positioned on respective carrier supports while sealant is being applied to the first major surface of the sealant carriers. The supports are used in initially positioning the sealant carriers in place and then are removed prior to tightening the first and second components together. The supports may include alignment mechanisms for use in aligning the sealant carriers with one of the first and second components. The sealant adheres the sealant carriers to such one of the first and second components following removal of the supports.

Abstract: The present invention provides a gasket for use in a service portion of a brake control valve in a railway braking system. The gasket comprises an elastomeric composition with a predetermined shape. There is a series of bead-like projections formed on the first surface of the gasket for sealing such gasket with a body portion of the valve. A first aperture is disposed in the gasket at a predetermined location for engagement with a projection on the filling piece of the service portion. A brass insert is molded into the elastomeric composition and has a second aperture formed therein. The second aperture is in fluid communication with an auxiliary reservoir of such railway braking system. A third aperture is formed in the gasket in a third predetermined location. A brass insert, which has a first predetermined configuration, is molded into the elastomeric composition of the gasket.

Abstract: A dielectric gasket (10) includes an outer annular disk (50) and an inner annular disk (56) both formed, at least in part, from electrically non-conducting materials. A seal (54) is disposed between an inside diameter (58) of the outer annular disk (50) and an outside diameter (62) of the inner annular disk (56). The outer annular disk (50), the inner annular disk (56), and the seal (54) operate to form an insulating barrier of electrically non-conducting material between adjacent pipe flanges (12, 14).

Abstract: A mounting for a cooking surface held at its periphery by at least one support part comprising a fiberglass reinforced duromer or thermosetting resin selected from the group consisting of an unsaturated polyester resin, a melamine resin, a phenol resin, and an epoxy resin, wherein the fiberglass reinforcement are glass fibers having a length of 15 mm to 65 mm.

Abstract: A corrosion resistant gasket for aircraft, and more particularly to encapsulation of a conductive mesh in a pliable fluorosilicone compound that will not become bonded to mating surfaces and will also migrate upon compression during installation to the threads of attaching hardware utilized between the instrument, antenna, and aircraft structure, thereby reducing corrosion through the attaching hardware, by providing a hermetic seal around the periphery of the envelope of the attached device.

Abstract: A metal-infiltrated ceramic for use in tribological applications, such as in mechanical face seals, beatings and other sliding or rubbing components, which provides excellent durability and wear characteristics. The metal-infiltrated ceramic is useful in both the “harder” and “softer” one of two relatively sliding members which is in, or may come into, contact with each other during the motion of one of the members relative to the other. The material is a porous ceramic which has been infiltrated with a metal.

Abstract: A method of forming a tension resistant O-ring is formed by extruding a length of precured elastomer with a coextensive central aperture; longitudinally dividing the elastomer; winding a strand of nonelastic synthetic material to form an endless ring having a predetermined toric axis diameter and a toric diameter less than the diameter of the elastomer aperture; assembling the endless ring and elastomer halves in a rubber mold; and, heating the mold to cure the elastomer.

Abstract: A heat exchanger assembly suitable for use in a heating, ventilating and air conditioning system of a vehicle comprising a housing, a heat exchanger core disposed in the housing and spaced from the housing to provide a peripheral spacing between the core and the housing and a seal disposed in the peripheral spacing including a first section engaging a portion of the core and having a first hardness and a second section integrally molded with the first section engaging a portion of the housing and having a second hardness less than the first hardness.

Abstract: A packing assembly for a hydraulic apparatus, for example a faucet comprising first and second members in fluid communication with each other, the second member having a recessed seat adapted to receive a substantially cylindrical core member, the core member having outwardly extending flanges from the top and bottom ends thereof, an elastomeric packing insert set into the recessed seat and secured about the core member, such that the core member provides reinforcement to the packing insert, and a spring received within the recessed seat of the second member, such that the spring maintains the core member and the packing insert in sealing contact with the first member.

Abstract: A seal for releasably engaging a movable panel such as a glass panel in a motor vehicle is disclosed, the seal has a base with an open celled reservoir layer connected to the base and a contact layer connected to the reservoir layer by an adhesive retained at least partially in the cell structure.

Abstract: An article includes an object and a sealing member. The object includes a cavity formed therein. The sealing member includes sealant and a carrier to which the sealant is attached. At least one of the carrier and the object includes attachment means whereby the carrier is configured to be attached to the object such that at least a portion of the sealant is retained within the cavity.

Abstract: An aerator pad for a railroad hopper car has a fabric body member that overlies an aeration assembly slope sheet. The body member has a perimeter portion with indentations formed in the edges thereof. A gasket is molded to the perimeter of the body member. Bolt holes in the gasket are spaced from the fabric so that no edge or perimeter portion of the fabric is exposed to atmosphere. The gasket is located between mating flanges of the aeration assembly and car body. Spacer buttons lift the body member off the slope sheet and a wear pad prevents vibration induced deterioration at the gas inlet opening in the slope sheet.

Abstract: An electrical enclosure having an improved sealing and shielding component and a method of manufacturing such an enclosure is provided. In accordance with an embodiment of the invention, a wire mesh is positioned against the surface of the enclosure. While the wire mesh is being positioned against the enclosure surface, a foam is formed on the enclosure surface adjacent the wire mesh. The foam generally adheres to the enclosure surface and holds the wire mesh in place. In accordance with one aspect of the invention, the foam has a height equal to or greater than the height of the wire mesh. The improved sealing and shielding components can, for example, improve the sealing and shielding of the electrical enclosure as compared to conventional electrical enclosures. The present electrical enclosure may, for example, also reduce the cost of manufacturing electrical enclosures.

Abstract: A branch gasket for a tapping sleeve is disposed about the side branch aperture in a main fluid conduit and between and in sealed contact with the main fluid conduit and an outer sleeve connected to the side branch. The branch gasket is comprised of a flexible, compressible, resilient material and includes a hydraulic lip, a stainless steel insert ring, a first pair of inner O-ring seals in intimate contact with the main fluid conduit, and a second pair of outer O-ring seals in intimate contact with the outer sleeve. A mat gasket for use with a tapping saddle is disposed about an aperture in a main fluid conduit and is further disposed between and in sealed contact with the main fluid conduit and an outer sleeve member. The mat gasket includes an aperture aligned with the aperture in the main fluid conduit and outer and inner portions in sealed contact with the outer sleeve member and the main fluid conduit, respectively.

Abstract: A turbine spline seal includes an elongated turbine seal member. The seal member has an elongated, imperforate, and manually-flexible first portion and a manually-rigid second portion lengthwise adjoining the first portion. The turbine assembly includes the turbine spline seal and also includes first and second turbine members. The first and second turbine members are spaced apart to define a fluid-path leakage gap therebetween, and the seal member is placed in the gap. Each lengthwise edge of the seal member engages a respective one of two opposing surface grooves of the first and second turbine members.

Abstract: A spherical annular seal member which has a cylindrical inner surface defining a through hole in a central portion thereof, an outer surface formed in the shape of a partially convex spherical surface, and an annular end face on a large-diameter side of the outer surface, and which is used particularly in an exhaust pipe joint, comprises: a reinforcing member made from a compressed metal wire net; a heat-resistant material filling meshes of the metal wire net of the reinforcing member and compressed in such a manner as to be formed integrally with the reinforcing member in mixed form, the heat-resistant material and the reinforcing member being provided as principal components in an inner portion of the spherical annular seal member which extends from the cylindrical inner surface to the outer surface formed in the shape of the partially convex spherical surface, boron carbide, a metal boride, a metal fluoride, graphite, and aluminum phosphate being also formed integrally with the reinforcing member and the h

Abstract: A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket has a ring shaped body of an elastomeric material and includes a metal reinforcing band. The metal reinforcing band has an angular profile, when viewed in cross-section, with an apex which is embedded within the gasket body but lies in close proximity to an exterior surface of the gasket. The apex provides a reinforced contact point during belling operations but is isolated from surrounding liquids passing through a pipe joint.

Abstract: A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket includes a ring shaped body which, when viewed in cross-section includes a leading nose region and a lower compression region. The leading nose region is joined to the lower compression region by a leading curved surface region which defines an angle .alpha. with respect to a horizontal axis drawn parallel to the central axis of the pipe. The lower compression region is joined to a secondary seal surface by a trailing curved surface region which defines a second angle .beta. with respect to the horizontal axis drawn parallel to the central axis of the pipe. The angles .alpha. and .beta. are selected to minimize the insertion force required when inserting the male spigot end within the female socket end of the pipe joint while guiding the spigot end and maintaining a compression seal between the pipe sections.

Abstract: A capsule is formed from a pre-expanded foam core in a compressed condition with a thermoplastic outer covering completely enveloping the foam core to maintain it in the compressed condition. The outer covering is made of a material capable of softening sufficiently when heated to permit the foam core to expand toward its original expanded uncompressed condition. Preferably, the outer covering adheres to the foam and then is carried by the expanding foam into intimate contact with the inner surface of a hollow structural member so as to form a seal for the hollow structural member.

Abstract: A combination disc and sealing ring for a filter assembly is provided. The disc is an annular thermoplastic disc having a central aperture. The disc includes an upper side and a lower side and the upper side of the disc includes an annular thickened area that extends upward from the upper side of the disc and that is spaced radially outward from the aperture of the disc. The annular thickened area is thermally welded to a sealing ring. The height of the annular thickened area is at least one-third the height of the sealing ring. The sealing ring further includes a central aperture that has a common axis with the central aperture of the disc. The sealing ring also includes a compressible area radially disposed between the aperture of the sealing ring and the annular thickened area of the disc.

Abstract: A vehicle seal (1) comprises an elastic molded sealing member (19) with holes through which clips (16) on a fastening rail (11) made of plastics material extend into anchoring holes in a vehicle body. The molded sealing member (19) is made in a molding tool (2) by being injected on to and vulcanized to the fastening rail (11) which is laid within the molding tool. The molding tool (2) is divided and includes a molding recess (8) in which the fastening rail (11) is laid. On one mold part (6), for each clip (16), there is provided a cap (9) which sealingly encircles the clip (16) and which extends into the molding recess (8) when the molding tool (2) is closed. Each cap (9), when the molding tool (2) is closed has its free edge (18) pressed into sealing contact with a base (12) of the fastening rail (11) which carries the clips (16). A coupling layer (15) is provided between the fastening rail (11) and the molded seal (19).

Abstract: A slide ring seal assembly includes a slide ring having a radial slide face and a circumferential conical surface; a support ring, made of an elastic material, surrounding the slide ring and having a circumferential conical surface; an annular elastic rolling body disposed between the slide ring and the support ring and being in engagement with the circumferential conical surfaces thereof; and an annular reinforcing body embedded in the support ring and having a plurality of radially, axially and circumferentially extending channels distributed over the circumference of the reinforcing body.

Abstract: A composite fluoropolymer material contains outer layers consisting essentially of conformable porous polytetrafluoroethylene (PTFE) and interior layers consisting essentially of rigid fluoropolymer material which may be a densified expanded PTFE, wherein the composite layers may optionally contain electrically conductive fillers. The composite is bonded together to form a sheet material that is sufficiently conformable to provide good seal between surfaces and is sufficiently rigid to make the material easy to handle and install. The material of the present invention is particularly suitable for use as a gasket where rigidity is needed, customization or modification of gasket shape is desirable, and/or where a wide, even sealing surface is sought.

Abstract: A fluid control assembly that includes fluid valving, fluid regulation, automatic safety shut-off valving and manual shut-off valving in one assembly, a novel fluid control unit that integrates the above functions in one unit, and a novel ignitor and a novel seal and diaphragm for use in the assembly.

Abstract: A seal assembly is provided for static, rotary and reciprocating sealing between the shaft and the housing. The seal assembly includes a ring seal in the shape of an annulus having a body portion with an inside flange and an outside flange extending longitudinally therefrom. A spring is disposed between the flanges for radially biasing the flanges from one another to effect sealing between the shaft and the housing and a circular band disposed between the spring and the outside flange is provided for maintaining radial force against the outside flange to retain the ring within the housing and provide static sealing between the ring seal and the housing despite shrinkage of the fluoropolymer seal ring.

Abstract: A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a turbine (such as combustor casing segments of a gas turbine). The seal includes a flexible and generally imperforate metal sheet assemblage having opposing first and second surfaces and two opposing raised edges extending a generally identical distance above and below the surfaces. A first cloth layer assemblage has a thickness generally equal to the previously-defined identical distance and is superimposed on the first surface between the raised edges. A second cloth layer assemblage is generally identical to the first cloth layer assemblage and is superimposed on the second surface between the raised edges.

Abstract: A sealing structure for an airtight chamber includes a first division member and a second division member being repeatedly joined and disjoined. The first and second chamber members are joined together to define the chamber between them and disjoined to allow access to the chamber. The structure also includes a sealing member pressed between the first and second division members to keep the chamber airtight against a pressure difference between the exterior and the interior of the chamber while the first and second division members are joined. The first and second division members are made of a material with hardness lower than that of the sealing member and are formed with a groove. The structure also includes seat members being embedded in the grooves and pressed against the sealing member while the first and second division members are joined. The seat member is made of a material harder than the division member and welded in said groove only along its contacting surfaces with the groove.

Abstract: A seal assembly having a flexible cloth seal which includes a shim assemblage surrounded by a cloth assemblage. A first tubular end portion, such as a gas turbine combustor, includes a longitudinal axis and has smooth and spaced-apart first and second surface portions defining a notch therebetween which is wider at its top than at its bottom and which extends outward from the axis. The second surface portion is outside curved, and a first edge of the cloth seal is positioned in the bottom of the notch. A second tubular end portion, such as a first stage nozzle, is located near, spaced apart from, and coaxially aligned with, the first tubular end portion. The second tubular end portion has a smooth third surface portion which surrounds at least a portion of the first tubular end portion and which is contacted by the cloth seal.

Abstract: A blade seal (20) for an aircraft has a mounting structure (22). A composite blade (26) is attached to the mounting structure (22). The composite blade (26) has a plurality of holes (28). An elastomer substance (30) is used to fill the plurality of holes (28).

Abstract: An elastic seal includes a longitudinally extending elastomeric seal member with a continuous sealing surface and a longitudinally extending structural support member having at least one section with fingers extending transversely from the section with slots between the fingers. Each of the fingers is entirely embedded within the elastomeric seal member near the continuous elastomeric sealing surface. The fingers are preferably articulated downward in a direction normal to the sealing surface and together with the rest of the support member are preferably made of a spring material such as a flexible material such as a springy sheet metal. The elastomeric seal and structural members may be continuous bands with continuous metallic band with the fingers extending transversely from the metallic band. The continuous metallic and elastomeric bands may be annular, rectangular, ellipsoid, or have some other shaped cross-section.

Abstract: An improved, chemically resistant gasket is constructed from a composite containing outer layers consisting essentially of conformable expanded polytetrafluoroethylene (PTFE) and interior layers consisting essentially of a densified expanded PTFE, wherein the composite layers may optionally contain electrically conductive fillers. The composite is bonded together to form a sheet material that is sufficiently conformable to provide good seal between surfaces and is sufficiently rigid to make the material easy to handle and install. The material of the present invention is particularly suitable for use as a gasket where rigidity is needed, customization or modification of gasket shape is desirable, and/or where a wide, even sealing surface is sought.

Abstract: A sealing apparatus for a heat exchanger used in an automotive vehicle is disclosed. The seal apparatus includes a closed loop of rigid material (29), the loop defining four substantially orthogonal edges (28, 30, 32, 34) configured to contact the respective sides of the heat exchanger (12). A sealing member (27) of soft material is attached to an outer face (21) of the closed loop and adapted to sealingly engage walls of a housing containing the heat exchanger. The loop includes a plurality of locating pins (38) integrally formed in the closed loop for located and retaining the sealing apparatus in a predetermined relationship with the heat exchanger.

Abstract: A packing element for an annular blowout preventer includes an annular elastomeric body disposed about a longitudinal axis that is adapted to be compressively displaced inwardly towards the axis. A plurality of the metallic inserts are embedded in the body in generally circular fashion spaced apart in respective radial planes extending from the axis for reinforcing the body. Each of the inserts include upper and lower flanges, and a web element extending between the flanges. The web element includes leading and trailing edges, each having outer arcuate surfaces that are substantially semicircular in cross-section for distributing the loads applied to a bond line between the insert and the elastomeric body during the operation of the packing element. A central rib extends between the leading and trailing edges.

Abstract: A feed port clamp member is disclosed for placement through and about the feed port of a filter plate to provide an abrasion-resistant surface through the feed port of the filter plate to prevent degradation of the underlying filter media and filter plate during high pressure and/or high temperature flow conditions of solids-containing filtration fluid through the feed port. The feed port clamp member is reinforced to provide stability to the feed port clamp member and to assure a secure seal between the feed port clamp member and the filter media. The feed port clamp member provides an improved means of protecting the filter plate and filter media under challenging flow conditions, particularly when the filtration fluid contains non-mineral solids components.

Abstract: Disclosed is an assembly seal for use in assembly comprising: packing formed in a predetermined shape from an elastic material; a core within the packing for providing substantial rigidity such that can maintain the desired shape of the packing; and a base for supporting the core, the base having substantial rigidity and being connected to the core portion in such a manner that the base can be easily separated from the core by a cutting operation. The assembly seal is used in an assembly method for assembling a plurality of parts into a set of assembled parts incorporating packing. The assembly method comprises the steps of: positioning the assembly seal so that the packing of the assembly seal is positioned at a specified position on one part of a set of assembled parts; separating the base of the assembly seal from the packing; removing the base so that only the packing of the assembly seal is left on said one part; and fitting the other parts of said set of assembled parts to said one part.