A closeable sealant wrap for placement about a workpiece includes a skin with a surface having a body dimensioned similar to the skin but narrower in width. Various closure means are deployed at one or more perimeter portions of the skin. The closure means may for example be a zipper which allows the sealant wrap to be enclosed around a wire, a fiber or a bundle of wires or fibers. The skin may be porous or non-porous. The body is a non-hardening, tacky polymer.
B65D 71/06 - Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottlesBales of material comprising a plurality of articles completely or mainly held together by packaging elements, e.g. under tension
H01B 7/282 - Preventing penetration of fluid into conductor or cable
An assembly to provide a moisture proof or moisture resistant seal about a bundle of wires. The assembly includes a shrink boot, such as a cold shrink boot, and a tacky sealant, such as a polyurethane gel, that will deform and flow under the pressure of a collapsing tube of the shrink boot.
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two-part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid. In one embodiment, the sealant is used on a blade type aircraft antenna.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 7/26 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
B05B 11/00 - Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
Fireworthy sealants may have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
F16J 15/02 - Sealings between relatively-stationary surfaces
G01N 25/50 - Investigating or analysing materials by the use of thermal means by investigating flash-pointInvestigating or analysing materials by the use of thermal means by investigating explosibility
B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
E04B 1/94 - Protection against other undesired influences or dangers against fire
A chemical composition comprising a mixture of a non-curing organic polymer base with a viscosity between 300 and 10,000 centipoises at 20 degrees C.° and a molecular weight of between 1,000 and 100,000. Into the base is mixed at least one of: metal particles (coated or uncoated), inert particles and non-metal corrosion inhibitors such that reaches a viscosity of between 9,000 and 10,000,000 centipoises. The result is a paste that is useful in applying to metal aircraft parts to help prevent corrosion, including galvanic corrosion.
A chemical composition comprising a mixture of a non-curing organic polymer base with a viscosity between 300 and 10,000 centipoises at 20 degrees C and a molecular weight of between 1,000 and 100,000. into the base is mixed at least one of: metal particles (coated or uncoated), inert particles and non-metal corrosion inhibitors such that reaches a viscosity of between 9,000 and 10,000,000 centipoises. The result is a paste that is useful in applying to metal aircraft parts to help prevent corrosion, including galvanic corrosion.
C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C23F 11/00 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
A gasket is disclosed for use as an environmental seal between a first aircraft part having planer surface and a second aircraft part having a planer surface, the two planer parts spread apart and engaged with fasteners. The gasket, in some embodiments, is compressible between the planer surfaces. The gasket, in some embodiments, comprises a first tabular portion having tabular portion properties and having a first tabular thickness and a length and a width, the length and width much greater than the first tabular thickness; and a second tabular portion having tabular portion properties having a second tabular thickness, a length and width, the length and width much greater than the second tabular thickness; and a tabular skeleton. The first and second tabular portions and the skeleton are positioned parallel to one another. The skeleton is at least partly contacting one of the tabular portions. The first tabular portion and the second tabular portion differ in at least one tabular portion property.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
8.
Corrosion-Inhibiting Coatings for Metal Mesh Gaskets and Metallic Particles
A molybdate solution is disclosed from which molybdate oxide coatings may be derived on metal particles or metal mesh. The coated metal particles may then be combined with a film forming binder and, optionally, corrosion inhibitors to make a corrosion composition. The coated metal mesh may then be used in making gaskets that inhibit corrosion.
C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers Preparation of carbon black
C23C 22/42 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing molybdates, tungstates or vanadates containing also phosphates
9.
FILM FORMING COMPOSITIONS CONTAINING MOLYBDATE DERIVED COATINGS
A film forming composition, including particles coated with a chromium-free molybdate based conversion coating solution for, when combined with a film forming binder, preventing corrosion on a metal substrate.
Applicant discloses a novel method of spray applying multiple courses of a rapid cure, two part polymer sealant to an aircraft surface. The method sometimes uses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The multiple courses cure to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build. Applicant further discloses multiple spray gun systems for applying such a two-part polymer mix to aircraft parts.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05B 7/32 - Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 1/34 - Applying different liquids or other fluent materials simultaneously
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
B05B 7/00 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
B05B 7/06 - Spray pistolsApparatus for discharge with one outlet orifice surrounding another approximately in the same plane
B05B 7/08 - Spray pistolsApparatus for discharge with separate outlet orifices, e.g. to form parallel jets, to form intersecting jets
B05B 15/55 - Arrangements for cleaningArrangements for preventing deposits, drying-out or blockageArrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
B05C 9/04 - Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by groups , or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
B05C 17/015 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with pneumatically actuated piston or the like
A gasket is disclosed for use as an environmental seal between a first aircraft part having planer surface and a second aircraft part having a planer surface, the two planer parts spread apart and engaged with fasteners. The gasket, in some embodiments, is compressible between the planer surfaces. The gasket, in some embodiments, comprises a first tabular portion having tabular portion properties and having a first tabular thickness and a length and a width, the length and width much greater than the first tabular thickness; and a second tabular portion having tabular portion properties having a second tabular thickness, a length and width, the length and width much greater than the second tabular thickness; and a tabular skeleton. The first and second tabular portions and the skeleton are positioned parallel to one another. The skeleton is at least partly contacting one of the tabular portions. The first tabular portion and the second tabular portion differ in at least one tabular portion property.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
12.
Sprayable sealant for aircraft parts and assemblies
Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. A two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
B05C 17/015 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with pneumatically actuated piston or the like
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 1/38 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for
F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
13.
AIRCRAFT FLUID RESISTANT SEALANT FOR USE ON AIRCRAFT PARTS
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two-part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
A number of tacky polyurethane or other gel comprising composites are provided. The composites have foam carriers, which may be open cell, semi-open cell, reticulated or closed-cell foam. The tacky gel which, in one embodiment, may be polyurethane, typically comprising a thin surface coating on the foam gel and the foam is partially or fully saturated with the same gel comprising the thin surface layer of the foam. The skeletons may be included in the composite to provide additional structure integrity, and a moisture proof layer may be added to the top and/or bottom surfaces of the foam/gel.
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
B32B 3/00 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
16.
Sealant having fireworthy properties for use with aircraft parts
Fireworthy sealants may have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
F16J 15/02 - Sealings between relatively-stationary surfaces
G01N 25/50 - Investigating or analysing materials by the use of thermal means by investigating flash-pointInvestigating or analysing materials by the use of thermal means by investigating explosibility
B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
E04B 1/94 - Protection against other undesired influences or dangers against fire
Disinfecting floor mats may be achieved by a variety of systems, processes, and techniques. In one general implementation, a disinfecting floor mat may include a UV LED array, a base, and a transparent cover. The UV LED array may have a top surface, a bottom surface, a perimeter and include multiple UV-emitting LEDs. The base may be configured to receive the UV LED array. The transparent protective cover may include a top surface of an encapsulating sheet for encapsulating the array or a top surface of a non-encapsulated protective sheet, the cover comprised of polyurethane and having substantial strength to withstand a person standing directly thereon with shoes on. The LED array is adapted to irradiate at least a portion of a bottom surface of a shoe positioned on the protective cover.
Applicant discloses multiple embodiments of a non-adhesive cured two-part polymer sealant for use on aircraft parts. In some embodiments, the sealant comprises only a carrier and a cured polymer gel. In some embodiments, the carrier of the sealant is at least partially open cell foam, which at least partially absorbs a cured polymer gel, and which sealant has beneficial properties, including low smoke density, non-toxicity when burned, and flame retardant properties. In some embodiments, the sealant comprises a skin on an outer surface thereof, which skin may be impermeable or semi-permeable to the passage of liquids and or polymer gels. In some embodiments, the sealant is breathable but moisture-proof.
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B64C 1/14 - WindowsDoorsHatch covers or access panelsSurrounding frame structuresCanopiesWindscreens
B64F 5/50 - Handling or transporting aircraft components
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build. Applicant further discloses multiple spray gun systems for applying such a two-part polymer mix to aircraft parts.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
22.
Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same
An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip.
B29C 43/20 - Making multilayered or multicoloured articles
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B29K 305/00 - Use of metals, their alloys or their compounds, as reinforcement
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.
B05C 17/005 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure
C09K 3/10 - Materials not provided for elsewhere for sealing or packing joints or covers
24.
Aircraft fluid resistant sealant for use on aircraft parts
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
Fireworthy sealants may be have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
F16J 15/02 - Sealings between relatively-stationary surfaces
G01N 25/50 - Investigating or analysing materials by the use of thermal means by investigating flash-pointInvestigating or analysing materials by the use of thermal means by investigating explosibility
E04B 1/94 - Protection against other undesired influences or dangers against fire
26.
AN AIRCRAFT FLUID RESISTANT SEALANT FOR USE ON AIRCRAFT PARTS
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05C 17/005 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure
B65D 83/00 - Containers or packages with special means for dispensing contents
C08G 59/18 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.
A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B64C 1/36 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for
B29K 105/00 - Condition, form or state of moulded material
H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
29.
Methods for making a gasket with a pliable resilient body with a perimeter having characteristics different than the body
A single piece gasket is disclosed having a skeletal member, typically metallic, and a pliable body. The pliable body includes a first portion having a first firmness and a second perimeter portion have a firmer consistency. When such a composite body is placed under compression, the perimeter will tend to limit the flow of the softer inner material past the firmer perimeter region or portion of the gasket. In this manner, creep or overrun of the less firm portion material will be reduced.
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
Fireworthy sealants may be have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.
Fireworthy sealants may be have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.
A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B64C 1/36 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
B29K 105/00 - Condition, form or state of moulded material
H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
33.
Elastomeric gasket with multiple skeletons for placement between two parts of an aircraft and a method for making the same
An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip.
B29C 43/20 - Making multilayered or multicoloured articles
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B29K 305/00 - Use of metals, their alloys or their compounds, as reinforcement
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.
B05B 7/04 - Spray pistolsApparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
B05B 7/24 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
B05C 17/015 - Hand tools or apparatus using hand-held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material through an outlet orifice by pressure with pneumatically actuated piston or the like
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
B05D 1/38 - Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for
F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
36.
A CLEAR SPRAYABLE SEALANT FOR AIRCRAFT PARTS AND ASSEMBLIES
Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.
A gasket for placement between a base of an aircraft structure and the underside of a workpiece, such as an aircraft antenna, is disclosed. The gasket has a cured polyurethane elastomeric gel body with a multiplicity of holes therethrough. The body typically has a flat lower surface and upstanding side walls, but the top surface is non-flat. The top surface may have sloped areas or raised tabular areas or a combination. The gel body may also have a skeleton member, such as a flexible metallic screen or other woven member. When the gasket is placed between the aircraft, base and the workpiece, threaded on fasteners, and the fasteners torqued down, the non-flat upper surface will flow such that, at proper torque setting, it fully coats and fully covers the underside of the workpiece and, typically, makes contact with the screen or skeleton member, which also makes contact with the upper surface of the base.
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor
B64F 5/50 - Handling or transporting aircraft components
B64C 1/14 - WindowsDoorsHatch covers or access panelsSurrounding frame structuresCanopiesWindscreens
An electrically conductive assembly for providing a low electrical resistance contact between an antenna and the corrugated roof of a train. The assembly comprises a gel and skeletal gasket member which has an electrically conductive skeleton encapsulated in a tacky gel. Multiple foam and gel members, typically made up of compressible at least partially open cell foam, are laid in the troughs and are thick enough, such that the top surface of the foam and gel members is about equal to or slightly higher than the top surfaces of the ridges of the corrugated train roof. The antenna is then laid atop the gel and gasket member and bolted to the roof with fasteners in such a manner that the tacky flowable gel at least partially squeezes out the edges of the gel and gasket member as the antenna is compressed downward while the fasteners are snugged up. This compression allows the electrically conductive skeletal member to provide contact between the antenna and the roof, the roof typically metallic and that results in a decrease of EMI (electromagnetic interference).
An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip.
B29C 43/20 - Making multilayered or multicoloured articles
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
B29K 305/00 - Use of metals, their alloys or their compounds, as reinforcement
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
An assembly for use on an aircraft wing having an aircraft skin and a fuel tank, the assembly comprising a metal access door for accessing the fuel tank, a metal retainer ring for engaging the wing and the access door. Fasteners removably couple the access door to the retainer ring. A lip, which may be on the wing surface, is configured to receive a perimeter of the access door when the access door is coupled to the retainer ring. A polyurethane elastomeric gel gasket having a metallic skeleton is configured to lay between the access door and a lip of the metal wing surface. Under compression, the polyurethane will deform and squeeze out the edges and flatten so as to provide metal-to-metal contact between the access door and the lip.
F16J 15/08 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
E06B 7/23 - Plastic, sponge rubber, or like strips or tubes
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
42.
POLYUREA PERIMETER SEAL FOR AN AIRCRAFT ANTENNA OR OTHER AIRCRAFT PART
A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.
A sealant is provided for use on an aircraft or other vehicle. The sealant may be used with a gasket. The sealant is a perimeter seal that comprises a polyurea member. The polyurea member is a self-curing, two-component mix. It may cure to a hardness in the range of about 40 to 100 (Shore A). It may maintain an adequate peel strength to withstand multiple thermal and pressure cycling, and may have a working life, wherein it may be shaped, of less than about eleven minutes.
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
F16J 15/14 - Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
B64C 1/36 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like adapted to receive antennas or radomes
44.
Thin gel gasket and a method of making and using the same
A thin, cured gel gasket is disclosed, including methods of making the thin gel gasket and the use of the thin gel gasket in an aircraft joint. In one embodiment, the thin gel gasket has no skeleton or other structure and is comprised of only a cured polyurethane gel and has a thickness of less than about 12 mill. It is manufactured using a release film that is adapted in a number of ways to make release from the gel prior to use easier. In one method of making and using the thin gel gasket. it is applied to a joint which is subject to compression, in one embodiment, a lap joint of an aircraft fuselage.
B32B 15/095 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyurethanes
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
45.
ELASTOMERIC GEL BODY GASKET HAVING A SUBSTANTIALLY INCOMPRESSIBLE SKELETON, A METHOD OF MAKING AND USING THE SAME
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
Gaskets, including aircraft gaskets, are disclosed, the gaskets having an elastomeric gel body and substantially incompressible skeletons. The bodies may be pliable and deformable and, in one example, may be comprised of a two-part chemically cured polyurethane that sets up as a gel after mixing with the web so that it is fully integral with the web and so that there is substantially no air bubbles or air pockets left in the web. The web may be a regular shaped web and made of nylon.
A single piece gasket is disclosed having a skeletal member, typically metallic, and a pliable body. The pliable body includes a first portion having a first firmness and a second perimeter portion have a firmer consistency. When such a composite body is placed under compression, the perimeter will tend to limit the flow of the softer inner material past the firmer perimeter region or portion of the gasket. In this manner, creep or overrun of the less firm portion material will be reduced.
B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
An elongated, flexible composite gasket member having a knitted wire mesh rope at least partly impregnated with a soft, tacky, flowable, pre-cured polyurethane gel for use in a stuffing tube assembly. The stuffing tube assembly is used in a deck or bulkhead of a ship. The stuffing tube comprises a cable having insulation on a surface thereof, a metallic shielding jacket, and conductors therein, the cable having an exposed section of metallic shielding and non-exposed section; a metallic stuffing tube with an inner cable channel and an at least partly threaded gland nut receiver space, and a constriction between the gland nut receiver space and the inner channel; a gland nut adapted to threadably engage the gland nut receiver space; and a; wherein the cable passes through the gland nut and stuffing tube with the exposed section substantially wrapped in the elongated flexible composite gasket member the gland nut above the elongated flexible composite material and the constriction below. The flexible gasket member is in electrical communication with the cable and the stuffing tube.
H01R 13/658 - High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
H01R 13/6584 - Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members formed by conductive elastomeric members, e.g. flat gaskets or O-rings
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
A spacer and gasket assembly is shown for receipt between a static structure having an outer and inner surface and fastener holes therethrough and a removable structure having a base with fastener holes and an upper surface and a lower surface. The static structure and removable structure are engaged through a multiplicity of fasteners having a shaft diameter. The fasteners are adapted to apply a compression on the gasket between the static structure and the removable structure. The static structure and the removable structure have opposed, typically flat, facing walls. The spacer and gasket assembly comprising a substantially non-compressible spacer adapted for receipt between the static structure and the removable structure having a spacer thickness. A gasket has a deformable, flowable, elastomeric body and a skeleton having a skeleton thickness, the skeleton substantially integral with the body. The gasket has an uncompressed gasket thickness. The spacer and the gasket are adapted to be placed substantially between the facing walls of the static structure and the removable structure and the removable structure will compress and deform the gasket when the fasteners are torqued down.
F16J 15/02 - Sealings between relatively-stationary surfaces
F16J 15/06 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
Applicants disclose a gasket for use between a removable workpiece and a base. The gasket has a polyurethane body, is generally tabular, and on one side has a fabric skin attached thereto. On the non-skinned side, the body, typically polyurethane, is sticky to the touch.
patents
