Abstract: A method for sealing entries in a MEMS element. The method includes: providing a functional layer having a functional region; producing a cavity underneath the functional region of the functional layer with the aid of a first entry outside of the functional region of the functional layer; sealing the first entry; producing a second entry to the cavity outside of the functional region of the functional layer; melting sealing material in the region of the second entry; and cooling off the melted sealing material to seal the second entry.

Abstract: A non-curable injectable ester containing packing material for use in the repair of leaking valves contains a calcium sulfonate grease containing at least one polyalphaolefin, an ester, an anti-wear/anti-galling agent, a binding/thickening agent and a plasticizing agent.

Abstract: A stretchable circuit board includes a stretchable base material, a stretchable wiring, and a land part that is in contact with the stretchable base material. The land part is formed of a patterned metal foil, or a printed product of an electroconductive ink containing metal particles. The stretchable base material has a tensile modulus at 25° C. room temperature of 0.5 MPa to 0.5 GPa.

Abstract: A flange sealing system includes two bodies that each have a respective flat surface and are interconnected so that the surfaces face one another. At least one of the bodies has a groove with parallel side walls recessed into the flat surface. An elastic profile with an H-shaped cross-section is arranged in the groove in such a way that at least a part of the vertical regions of the elastic profile is arranged parallel to the side walls of the groove. In at least one portion of the space between the vertical regions of the elastic profile, a cured liquid is arranged in such a way that the profile is adhesively connected to the groove in the region of the base surface of the groove. The cured liquid is elastic.

Abstract: Securing a channel section 7 onto a pre-existing substrate 9 using screws 11 requires any water-impermeable layer on the substrate 9 to be compromised. In particular, water present on a head of a screw 11 may wick (i.e. via capillary action) along the thread of a screw, past the water-impermeable layer, and into the core of the substrate 9. The present invention provides a sealing device with a fluid inlet 6 for injecting fluid sealant therethrough to surround a screw 11, thereby preventing wicking of water along threads of the screw.

Abstract: A grommet includes a main body part fitted to a penetration hole penetrating an attachment panel, and a tubular part unified with the main body part so as to have a tubular shape. The tubular part includes a tubular part main body formed continuing from the main body part, and a fold-back part formed continuing from the tubular part main body on a side opposite to a side where the main body part is positioned in the axial direction and that can be folded back to the outside of the tubular part main body. The fold-back part is foldable between an attachment position where the fold-back part is folded back to the outside of the tubular part main body, and a use position where the fold-back part is positioned on the side opposite to the side where the main body part is positioned.

Abstract: A sealant material composition for sealing asphalt includes a non-fiber asphalt emulsion between about 20.0 wt. % and about 60.0 wt. %, carbon black between about 0.5 wt. % and about 5.0 wt. %, an aggregate between about 1.0 wt. % and about 10.0 wt. %, wherein the aggregate is amorphous aluminum silicate, and a hydrophobic additive between about 0.1 wt. % and about 1.0 wt. %.

Abstract: Assemblies, apparatus, devices and methods useful in providing lightning protection of avionic components associated with aircraft antennas are disclosed. Aspects of the present disclosure may be used on aircraft comprising structural elements made from composite materials having a relatively low electrical conductivity. An exemplary assembly disclosed comprises: an antenna secured to a structural element of the aircraft and configured to receive wireless signals and/or transmit wireless signals external to the aircraft; a communication unit operatively connected to the antenna for signal transmission between the antenna and the communication unit; and an isolation transformer electrically disposed between the antenna and the communication unit where signal transmission between the antenna and the communication unit is conducted via the isolation transformer.

Abstract: A cover for a housing of a vehicle and a method of sealing a cover to the housing, where in at least one example, the cover comprises a cover body configured to cover an opening of the housing and to engage the housing at an interface around the opening. The cover may comprise a heating element embedded within the cover body and operable to at least partially melt a portion of the cover body as a part of a process for sealing the cover to the housing. The portion of the cover body may deform and conform to an interface feature at the mating surface of the housing due to the at least partial melting of the portion of the cover body, and, in some examples, the heating element may be configured to fail and be inoperable.

Abstract: In a spherical annular seal member 38, a spherical annular base member 36 is constructed so as to be provided with structural integrity as a heat-resistant material 6 and a reinforcing member 5 are compressed to each other and intertwined with each other. In an outer layer 37, the heat-resistant material 6, a sintered solid lubricant constituted by a lubricating composition, and the reinforcing member 5 made from a metal wire net are compressed such that the sintered solid lubricant and the heat-resistant material 6 are filled in meshes of the metal wire net of the reinforcing member 5, and the solid lubricant, the heat-resistant material 6, and the reinforcing member 5 are integrated in mixed form, an outer surface 39 of that outer layer 37 being thus formed into a smooth surface 42 in which a surface 40 constituted by the reinforcing member 5 and a surface 41 constituted by the sintered solid lubricant are present in mixed form.

Abstract: A protective encasement for an electronic device includes members that clasp together and a dispensed seal disposed on an inside surface of one of the members to form a watertight barrier between the member and a surface of the installed electronic device. The dispensed seal may comprise an elastomeric material dispensed on and adhered to the inside surface of the encasement. A first overlap region of the dispensed seal may overlap a second overlap region of the dispensed seal at an overlap point to form a closed loop. The closed loop may have a substantially uniform thickness to form the watertight barrier. The first and second overlap regions may each have reduced thicknesses that are less than the uniform thickness, but a combined thickness of the overlap regions at the overlap point substantially equals the uniform thickness to complete the closed loop of the seal.

Abstract: A method for manufacturing a micromechanical component including a substrate and a cap, which is connected to the substrate and, together with the substrate, encloses a cavity, a pressure prevailing and gas mixture having a chemical composition being enclosed in the cavity. An access opening connecting the to surroundings of the micromechanical component is formed in the substrate or in the cap. The pressure and/or chemical composition are/is adjusted in the cavity. The access opening is sealed by introducing energy or heat into an absorbing part of the substrate or of the cap with the aid of a laser. A layer is deposited on or grown on a surface of the substrate or of the cap in the area of the access opening for mixing with a material area of the substrate or of the cap, which is converted into a liquid aggregate state.

Abstract: A sealing joint for a compressor casing, such as a compressor casing for a centrifugal compressor of a chiller, is provided. The sealing joint may be configured to have a first cover and a second cover. A first mating surface of the first cover may have an inner annular portion surrounding an inner cavity of the sealing joint, and an outer annular portion. The inner annular portion may be positioned between the inner cavity of the compressor casing and the outer annular portion. A sealant may be applied to the sealing joint, and a depth of the sealant on the inner annular portion may be deeper than a depth of the sealant on the outer annular portion. The depth of the sealant on the inner annular portion may help the sealing joint tolerate more elongation range without a sealant failure than a regular casing.

Abstract: The present invention relates to a cross-linkable, elastomeric silicone composition and to a method using the composition according to the invention to form seals for sealing and assembling components of a power train. The silicone elastomers prepared from the composition according to the invention have: good resistance to ageing in chemically aggressive fluids such as those used e.g. in a power train, in this case engine oils, gearbox and axle lubricants, oil/gasoline mixtures, coolants, fuels, or antifreeze; good adhesion properties, even to surfaces soiled by the oils used in a power train; and good mechanical-strength properties, such as breaking strength, elongation at break, and Shore hardness.

Abstract: The present specification relates to thermally expandable formulations comprising (a) at least one peroxidically crosslinkable binary copolymer comprising at least one monomer unit selected from vinyl acetate, (meth)acrylic acids and derivatives thereof, the binary copolymer having a melt flow index of not more than 3 g/10 min, as determined in accordance with DIN EN ISO 1133 and with a test load of 2.16 kg and a test temperature of 190° C., (b) at least one peroxide, (c) at least one chemical blowing agent, and (d) at least one polymer based on one or more diene monomers, and (e) at least one terpolymer based on at least one first monomer selected from singly or multiply unsaturated hydrocarbons, and on at least one second monomer selected from (meth)acrylic acids and derivatives thereof. The thermally expandable formulations exhibit a high level of persistence during the heating of the material as required for curing/expansion.

Abstract: A sealing member for forming a seal in an aircraft, the sealing member comprising: a sealing material; and a stiffening element which provides structural support to the sealing material and comprises a material with a glass transition temperature below +50° C. The stiffening element is relatively flexible when the aircraft is at low altitude (high temperature) but becomes relatively stiff (increasing resistance to seal flutter) when the aircraft is at cruise altitude (low temperature).

Abstract: Certain exemplary aspects of the present disclosure are directed towards an apparatus in which a base deck and a base deck cover interface with one another to provide a permeability path. The base deck includes an outer region, and the base deck cover includes a lip that interfaces with the outer region of the base deck to provide the permeability path. The permeability is further defined by at least three interleaved sidewalls of the base deck and base deck cover that define two segments of the permeability path. The permeability path is filled with a polymer material that creates a seal between the base deck and base deck cover.

Abstract: A method of sealing a passage in a body with a sealing composition comprising (a) a major proportion of a latex emulsion or colloid; and (b) a minor proportion of lauric acid or a laurate compound; and (c) at least one further selected additive, ideally a latex coagulation inhibitor, wherein said composition is pumped into said passage where it is set or coagulated to form a seal. Advantageously, the laurate compound is ammonium laurate and coagulation is conveniently induced by adjusting pH of the sealing composition from alkaline to acidic pH range. The method is particularly well suited to sealing in faulty formations or sealing sites and may be used in sealing within salt mines which contain brines.

Abstract: A fiber optic connector assembly comprises a ferrule assembly including a ferrule and a hub. The ferrule has a distal end and a proximal end. The proximal end of the ferrule is mounted to the hub. The ferrule defines a fiber passage that extends through the ferrule from the proximal end to the distal end. The fiber optic assembly further comprises an optical fiber having an end portion potted within the fiber passage of the ferrule. A loose tube receives the optical fiber. The loose tube has a distal end positioned inside the hub and defines a venting opening that starts at the distal end of the loose tube and extends proximally along a length of the loose tube.

Abstract: A bush assembly comprising a component having a bore, a bush fitted in the bore and having a flange that extends radially outwardly over a surface of the component surrounding the bore, and a seal assembly for sealing the interface between the flange and the surface of the component, wherein the seal assembly includes a seal member and a layer of sealant between the seal member and the interface between the flange and the surface of the component. Also a method for sealing a bush, a kit of parts for forming a bush assembly, and a clamping tool for forming a bush assembly.

Abstract: A seal comprises: a first portion including a crosslinked product of: a first crosslinked polymer; and a second crosslinked polymer; and a second portion including a polymer which is different than a constituent polymer in the first portion, wherein the seal has a gradient in glass transition temperature. A method for sealing comprises: disposing the seal of claim 1 in an opening; heating the seal to a temperature greater than a minimum value of the glass transition temperature of the gradient; and applying pressure to an elastic portion of the seal for sealing the opening.

Abstract: A method and assembly for reducing a radial gap between radially proximate components including a setting member having a first dimension that partially defines the radial gap, the setting member including a circumferential groove extending radially from the first dimension, and a first toroid having a second dimension, the setting member operatively arranged to engage with the first toroid, wherein increasingly engaging the setting member with the first toroid enables a boundary dimension of the assembly to be extended toward the radial gap for reducing the radial gap, the circumferential groove operatively arranged to catch the first toroid when the setting member is fully engaged with the first toroid.

Abstract: Methods for making multiple hermetically sealed optical components are disclosed. Methods for making an individual hermetically sealed optical component are disclosed. An individual hermetically sealed optical component and products including same are also disclosed.

Abstract: A foamable sealing material contains a polymer, a foaming agent, and a fire retardant. The fire retardant contains 5 to 110 parts by mass of metal hydroxide and 5 to 110 parts by mass of a halogen organic compound relative to 100 parts by mass of the polymer. The foamable sealing material is foamable for sealing a space.

Abstract: An upper oil pan of an engine includes a flange with an oil pan abutment surface that is fixedly coupled to a flange formed on a cylinder block. The oil pan abutment surface comprises a flat portion that is substantially parallel to a cylinder block abutment surface of the cylinder block, a slanted portion that is slanted with respect to the flat portion, and a vertical wall portion connecting the flat portion and the slanted portion. The vertical wall portion is formed substantially perpendicular to the flat portion. The cylinder block and the upper oil pan are fixedly coupled together via an interposed liquid gasket. Thus, the seal structure in which the liquid gasket is adequately cured is provided, and sufficient sealing properties can be obtained with a small amount of material used.

Abstract: A seal is inserted into a space to be sealed. First and second end portions of the seal are engaged with first and second end surfaces of the space. The seal is compressed between the first and second end surfaces. The compression strains the seal. The strain includes the rotation of a cross-section of the seal so as to bias the seal into engagement with a surface forming one of an inboard surface and an outboard surface of the space.

Abstract: Certain example embodiments relate to frit materials that have an improved IR absorption property. Certain examples relate to frit materials that substantially melt in about 3 minutes at a temperature of about 525° C. Certain examples relate to a method of making an edge seal by using IR energy. Certain examples relate to adjusting the IR energy applied to a frit material to form an edge seal. Certain examples also relate to making a VIG unit by applying IR energy and adjusting the amount of IR energy over multiple periods of time, e.g., in an oscillating manner.

Abstract: A method for forming a self-regenerating seal in a mixing chamber of a high-pressure mixing apparatus for polymeric components suitable for providing a reactive mixture for a polymerisable resin. An annular sealing element is provided in a circular housing seat inside the mixing chamber, in a sealing zone downstream the injection holes for the polymeric components; worn and/or torn parts of the annular sealing element are automatically regenerated by the same reactive mixture delivered during operation of the mixing apparatus. A high-pressure mixing apparatus with self-regenerating sealing element is also claimed.

Abstract: Method for sealing an annular space in a rigid conduit (2) and a pipe, tube or duct (3) extending through the conduit (2) and made of a thermally weakenable material, wherein the method comprises applying in the conduit a layer (4) of a thermally expandable material concentrically around the pipe, tube or duct (3), and applying at each end of the conduit (2) between the conduit and the pipe, tube or duct (3) a sealant (5) being made of a fire resistant polymer.

Abstract: There is disclosed a process of forming reinforcements, baffles and seals having malleable carriers. The process typically includes application of an activatable material to a malleable carrier and contouring of the activatable material the malleable carrier or both.

Abstract: An electronics module includes a module housing having a base structure and a plurality of side walls. A module cover contacts the side walls and is connected to the module housing via at least one fastener. The module housing includes at least one fastener boss for receiving the at least one fastener. Each of the fastener bosses includes a fastener hole protruding partially into the fastener boss and a vent hole connecting the fastener hole to an opening on a surface of the fastener boss exterior to the module housing, and a sealant disposed in the fastener boss, thereby preventing external air from entering the electronics module through a fastener connection.

Abstract: A building block assembly is provided comprising a building block and a seal. In one embodiment, the building block comprises a first surface, and the first surface has a groove. The seal is movable from a first position to a second position. In the first position, the seal is retracted into the groove, and in the second position the seal is extended outside the groove. In another embodiment, the seal is connected to the building block, and the seal at least partially encases a fluid sealant.

Abstract: Disclosed are polyfunctional sulfur-containing epoxies and compositions containing polyfunctional sulfur-containing epoxies. The polyfunctional sulfur-containing epoxies may be used as a curing agent and combined with polythioethers and/or polysulfides used to provide high elongation sealants useful in aerospace applications.

Abstract: A continuous filament non-woven web is disclosed, wherein filaments of the web include an expandable thermoplastic material. Mattings fabricated from the continuous filament non-woven web are also disclosed. The web or matting can be used in sealing applications as it can be cut into desired dimensions and inserted into a cavity. The web or matting allows for introduction and drainage of further fluids in and from the cavity. The extendable thermoplastic material can be activated and foamed to fill a part of or the entire cavity. The sealing can prevent air, water or noise from intruding into the cavity and a space behind that cavity.

Abstract: A method and apparatus for blocking the passage of air through a connection portion of two vehicle body portions. A first vehicle body portion is provided having a generally planar first surface. Expandable foam is mounted to the first surface of the first vehicle body portion. A second vehicle body portion having a generally planar second surface is connected to and overlapping the first surface of the first vehicle body portion thereby fully covering the expandable foam. The expandable foam expands when heated and is operable to expand to fill gaps to prevent the passage of air thereby preventing turbulent mixing of the air flow flowing between the first and second vehicle body portions with the air flow flowing from outside the vehicle. A method is further provided for blocking the passage of air through the connection portion of two vehicle body portions.

Abstract: According to one aspect, an apparatus to provide sealing contact between first and second fueldraulic components includes a metallic member, wherein the metallic member comprises a layer of metal that is formed into a spring energized seal member. The apparatus also includes a layer disposed on an outer portion of the metallic member to provide sealing contact between the first and second fueldraulic components.

Abstract: A seal structure capable of achieving a waterproof structure at low cost while being flexibly adaptable to design change of a wire member, a method of forming the seal structure, a wire body and an electronic apparatus using them are provided. A seal structure 15 for sealing through holes 33, 43 of housings 31, 41 in which a wire member 20 is inserted is configured to include a covering C that includes a spacer member 11 disposed on one side of the through hole, secures the spacer member 11, the wire member 20 and the housings 31, 41 to each other and seals them.

Abstract: A sealing apparatus includes a carrier and sealant contained by the carrier. An enclosure interface includes first and second pieces and defines one or more sealing channels that the sealing apparatus may be positioned within. The first piece defines an opening that has a perimeter sealed by the sealing apparatus. When the first and second pieces are mounted together, the sealant forms a first interface seal with the first piece and a second interface seal with the second piece. The one or more sealing channels are interconnected by one or more junction sections that include a volume of sealant. The carrier may define first and second channels that respectively contain first and second volumes of sealant. The method for making the sealing apparatus may include extruding the first and second volumes of sealant into the first and second channels.

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: A sealing assembly including a seal element at least partially formed from a shape memory material. The shape memory material urges the seal element to revert to an original shape upon exposure to a transition stimulus. The seal element is operatively arranged for sealing against a downhole structure when in the original shape. An interlock mechanism is included for holding the seal element in a deformed position in which the seal element is not able to seal against the downhole structure even after exposure to the transition stimulus. A method of setting a downhole sealing assembly is also included.

Abstract: A method is described for sealing and assembling, pointing and/or coating a substrate by means of silicon elastomers prepared using silicon compositions that do not contain any metal catalyst such as, for example, tin, and cross-linking by polycondensation reactions in the presence of water (for example, ambient moisture).

Abstract: Applicator (1) for sealants, comprising—a feed tube (7) with a supply side (5), a tubular feed part and an outflow side, wherein the outflow side comprises a nozzle (22); —a wiping blade (9) fixedly connected to the outflow side of the feed tube, wherein the periphery of the nozzle is located in the upper surface of the wiping blade and wherein the upper surface of the wiping blade has a profile formed from: an inner surface (24) bounded by two upright dikes (20), wherein the nozzle is located between the two dikes and in the inner surface, wherein the dikes and the inner surface extend to an edge (28, 30) of the wiping blade where the profile of the inner surface (24) and the dikes (20) together form a wiping edge (28) for applying and wiping sealant on an object.

Abstract: An object of the present invention is to provide an optical waveguide module which has a small optical coupling loss between the light element and the optical waveguide and can perform high-quality optical communication, a method for producing the optical waveguide module with high efficiency, and an electronic apparatus which includes the optical waveguide module and can perform high-quality optical communication, and the present invention provides an optical waveguide module including: an optical waveguide including a core portion, a clad portion that is provided to cover a side surface of the core portion, and an optical path-converting unit that is provided partway along the core portion or on an extended line of the core portion and that converts an optical path of the core portion to the outside of the clad portion; an optical element that is provided over the clad portion; a circuit board that is provided between the optical waveguide and the optical element and has a through-hole formed along an optic

Abstract: A method is described for sealing and assembling components of a drive train by means of silicon elastomers prepared using silicon compositions that do not contain any metal catalyst such as, for example, tin, and cross-linking by polycondensation reactions in the presence of water (for example, ambient moisture).

Abstract: To prevent escape of exhaust gas and soot from a turbocharger, a heat resistant sealing material is applied to a contact surface between a turbocharger bearing housing and center housing, and cured or dried to form a thin solidified coating. The end housing is then assembled to the bearing housing, whereby the coating provides a gas and soot seal between the bearing housing and end housing. The inventive seal could however also be used to seal the connection between two turbine stages, or any parts attached to a turbocharger end housing and subject to pressure.

Abstract: A sealed assembly is made using sealant including a deformable spacer to control thickness without adversely impacting elasticity and sealing force. Deformable spacers (e.g., elastomer, polyolefin, etc.) are mixed with an elastomeric precursor material and dispensed onto an assembly component, such as a fuel cell bipolar plate, and the remaining component(s) are assembled by pressing against the deformable spacer to ensure a defined seal thickness. The precursor is cured to form a seal that is further compressed to provide an effective sealing force. The deformable spacers control the thickness of a sealed area and allow use of form-in-place sealing processes.

Abstract: An equipment component system including an equipment component structure having a first unit and a second unit and an intumescent paint or sealant on said equipment component structure. The intumescent paint or sealant provides sealing or prevents warpage or deformation or separation of a equipment component or sub-component in a fire or at high temperatures. The intumescent paint can shut a gap in a fire or at high temperatures. The intumescent paint can also pen a gap in a fire or at high temperatures so that fluid flow is preferentially directed one route versus another.

Abstract: A sealer (5) for sealing a sealed portion (3) is a sheet member formed into a shape that matches a three-dimensional shape of the sealed portion (3). The sealed portion (3) is sealed by placing the sealer (5) over the sealed portion (3) and heating the sealer (5).

Abstract: The present disclosure describes a magnetic fluid sealing device having a shaft centered with respect to a magnetic structure and rolling element bearing, as well as a method for centering the shaft in the device. A compressible ring located in a groove on the shaft is used to partially fill the gap between the shaft and the rolling element bearing and to make contact with the rolling element bearing. The compressible ring aligns and centers the shaft with the rolling element bearing. A liquid locking material is added to the gap and hardened to couple the shaft and compressible ring to the rolling element bearing. An alternative self-alignment mechanism is also disclosed.

Abstract: A surgical valve includes a housing with a proximal housing portion and a distal housing portion cooperating to define a gel cavity. A seal material is disposed in the gel cavity and includes a gel having flow characteristics and incompressible characteristics. A distal guide tube is provided to facilitate retrograde insertion of a surgical instrument into the seal material. During assembly, pressure is applied by the housing portions to the seal material in order to form a circumferential seal and to close an instrument channel. Manufacture can be facilitated by use of a mandrel for maintaining the structural elements in axial alignment. Complimentary screw threads disposed between the first and second housing portions can be used to pressurize the gel and thereby create a locking force on an inserted instrument. Detented tabs can be provided to facilitate control of this locking force.