Abstract: A package for preserving perishable food products such as produced shipped in large quantities on a pallet wherein the invention includes panels formed of honeycomb material covered by aluminum foil panels to provide a stronger and better insulated package.

Abstract: A process for fabricating panels of a core material with thermoplastic resin facings. The core material is either foam or a honeycomb structure from aramid paper. A belt press machine provides a means for rapid heating and cooling such that the core will not degrade. Since the process is so rapid, aramid fibers can be used to reinforce the resin facings without deleterious decomposition of the fibers under the temperatures used to heat the panels during forming.

Abstract: Decorative pleats have two cuts made in each of two or more pleats and the fold of the pleat is reversed between the cuts. When used as a decorative display for a photograph, picture, merchandise or other item, the cuts may be made angularly to hold the item in place. Cuts may be perpendicular to the fold of the pleat, angular to the fold, zigzag, curvilinear or of other shape. The pleats may be a blind, a lantern or of other shape.

Abstract: Disclosed is a lightweight honeycomb structure that comprises a top panel (34) and bottom panel (32) and a large-celled honeycomb layer (36) disposed between the top and bottom panels. The honeycomb panel structure according to the present invention can be used in such applications as a sound-absorbing payload shroud for launch vehicles, flooring and walls in aerospace applications, aircraft wings and in structures that will be exposed to high heat. Additionally, a method of making a honeycomb structure of thermoplastic material is disclosed.

Abstract: Film-based composite structures meet the requirements of highly weight-efficient SDI space-based systems. These structures are rigid, lightweight, dimensionally stable, and possess a high degree of structural damping. Thin-walled structures (wall thickness less than 50 .mu.) made from self-reinforced ordered-polymer films overcome drawbacks of fiber-reinforced composites, and provide resistance to microcracking, ply delamination and impact. They have high temperature capability (over 300.degree. C.), low temperature (cryogenic) capability and the capability for hardening and survivability. The modulus and dimensional stability of film-based ultralightweight honeycomb sandwich structures is better than currently possible with aluminum or fiber-reinforced composite materials. Other thin-walled structures such as tension web beams and thin facesheets also show similar stiffness-to-weight advantages over current materials.

Abstract: A new pattern for cellular core material used in sandwich type structural materials. The new pattern involves star shaped cells intermixed with hexagonal shaped cells. The new patterned cellular core material includes star shaped cells interconnected at points thereof and having hexagonal shape cells positioned adjacent the star points. The new pattern allows more flexibility and can conform more easily to curved shapes.

Abstract: A versatile aluminum alloy molding block structure for used as a ceiling tile, a floor covering or a wall covering, particularly a molding block with patterns and designs on the surface to be used as a building material. The aluminum alloy molding block consists of a basic block and surface boards covering the surface of said basic block. The basic block has a plurality of partitions having the shape of bee nests contained therein, each of the partitions can be packed with fire proofing material, heat insulator or acoustical, soundproofing material. It is scientific and economical to use the aluminum alloy molding blocks as a versatile building material.

Abstract: A method of simulating a creeper for mechanics servicing a vehicle spaced from a floor and for catching vehicle drippings provides a sheet of cellular material with a lower surface for contacting the floor therealong and with a parallel upper surface. That method and simulated creepers provide for a catching of vehicle drippings and avoid a need for creeper casters by coating the upper surface of that sheet with a dripping-impervious layer facing the vehicle having a lower surface friction than the cellular sheet at its lower surface so that a mechanic may slide along the surface of that layer while the lower surface remains stationary on the floor.

Abstract: A thermal insulating body, or molding, for thermal insulation, consisting of a shell which can be evacuated and which is filled with a solid, microporous thermal insulating material, is characterized by the fact that at least the end surfaces (3) of the shell (1) consist of material which is a poor thermal conductor, that the microporous thermal insulation material consists of compression-proof and baked fibrillar micro glass fibers, and that the fibrillar micro glass fibers are compacted and pressed into three-dimensional panels (4).

Abstract: A paneling material of superior rigidity to the conventional paneling material of the similar type is presented. The paneling material includes a base section and uniformly distributed protrusions which protrude out from the base section. The paneling material is reinforced without adding much weight by providing hollow ribs which can be placed strategically depending on particular requirements of the application. The ribs can be provided on the protrusions, on the base section or on both the protrusions and the base section. The paneling material of such a design can be produced readily by superplastic forming processes. The basic paneling material may serve as a core for a composite paneling material by attaching sheet members on each side of the core paneling material. Other uses for the paneling material include decorative applications in which case the protrusions themselves may form part of the decorations.

Abstract: A structurally networked matrix ceramic composite material is disclosed as comprising either a continuous ceramic skeletal structure or a series of noncontinuous ceramic skeletal structure surrounded by a resilient polymeric, metallic etc. material to obtain a structural composite with a high compression and tensile strength of ceramics while permitting an accurate prediction of the strength of the resulting composite. Alternatively, the skeletal matrix structure could have no surrounding material or substrate. The matrix structure distributes to all connecting members the compressive and tensile forces resulting from loads on the overall composite.

Abstract: The present invention relates to a resilient body which includes two thin layers (1, 6) of flexible material to which intermediate elastic threads (2, 3, 5) or bands are fastened in a stretched state and disposed in a regular, net-like pattern, and bodies (4) of soft material are disposed between the two layers (1, 6) in at least some of the meshes of the net formed by the elastic threads. These bodies have smaller dimensions than the meshes, so as to permit total or partial contraction of the stretched or tensioned elastic threads. The bodies also have an intrinsic stiffness such as to substantially retain their shape upon contraction of the elastic threads. The invention also relates to a method for manufacturing the inventive resilient body.

Abstract: A structural member formed from a plurality of layers of interwoven fibrous material. The plurality of layers intersect and join each other along lines of contact. The lines of contact form axes of the member. A hollow central portion having a perimeter is defined by the plurality of intersecting layers and the lines of contact. A plurality of points are formed on the perimeter of the hollow central portion defined by the lines of contact formed by the axes. At least one flange extends outwardly of the hollow central portion at each of the points, wherein each of the plurality of layers extends beyond the axes of the member to define the flanges.

Abstract: An end closure for an airfoil, e.g., a flap or aileron of honeycomb core structure, wherein a closure plate having flanges of dovetail configuration is utilized with a sealant in which the dovetail flanges are embedded prior to curing of the sealant.

Abstract: High strength foam-filled materials and methods for their production are disclosed. The high strength materials include cellular structures comprising a plurality of open-ended cells containing polycyanurate foam. The polycyanurate foam-filled cellular structures have synergistically high mechanical properties and improved resistance to moisture. When cyanate ester foamable precursors in the form of tough films are foamed to fill honeycomb cells, the resulting foam-filled honeycomb has uniformly fine foam cell structure and improved bonding between the foam and the honeycomb.

Abstract: A thermal insulating layer for machine-like components includes several flat elements, mats or insulating cushions arranged to abut one another on the outside of the component. The individual elements abut each other with lateral front faces that are essentially perpendicular to the surface of the component thereunder. Both front faces of each pair of abutting front faces have at least one mutually complimentary shoulder.

Abstract: A flexible surface coating which promotes the removal of deposits as they reach the surface by preventing adhesion and crust formation. Flexible layers are attached to each side of a flexible mesh substrate comprising of a plurality of zones composed of one or more neighboring cells, each zone having a different compressibility than its adjacent zones. The substrate is composed of a mesh made of strands and open cells. The cells may be filled with foam. Studs or bearings may also be positioned in the cells to increase the variation in compressibility and thus the degree of flexing of the coating. Surface loading produces varying amounts of compression from point to point causing the coating to flex as deposits reach it, breaking up any hardening deposits before a continuous crust forms. Preferably one or more additional layers are also used, such as an outer layer of a non-stick material such as TEFLON, which may be pigmented, and an inner, adhesive layer to facilitate applying the coating to a surface.

Abstract: A composite panel comprises first and second sheets 20, 22 of a natural fibre material such as corrugated cardboard, each sheet 20, 22 having been impregnated with a liquid composition comprising a thermosetting resin, an extending liquid for the thermosetting resin and a catalyst for the thermosetting resin, the thermosetting resin having been polymerized, a cellular core 10 of a natural fibre material such as kraft paper, the cellular core 10 having been impregnated with a liquid composition comprising a thermosetting resin, an extending liquid for the thermosetting resin and a catalyst for the thermosetting resin, the thermosetting resin having been polymerized, the cellular core 10 being sandwiched between and adhered to the first and second sheets 20, 22; and a filler composition located in all of the cells of the core 10, the filler composition comprising a mixture of an inorganic insulating material and a material which releases water at elevated temperatures, in granular form.

Abstract: A light weight structural composite panel adapted for use in a vertical orientation in an underground worker protection system is disclosed. The panel comprises first and second fiberglass reinforced resin matrix facing layers and a balsa-containing core means, weights less than about 5.5 to about 6 lbs. per square foot, and when supported in a vertical plane adjacent an excavation wall, is able to withstand an extended load in Type C solid (OSHA, CFR 1926) of at least 592 pounds per square foot with a minimum safety factor of 3:1. Methods of preparing the panels and methods of assembling the panels into excavation support systems are also disclosed.

Abstract: A structural or flexible highly insulative panel which may be translucent, is formed from multi-layer polymeric material in the form of an envelope surrounding a baffle. The baffle is designed so as to minimize heat transfer across the panel, by using material which forms substantially closed spaces to suppress convection of the low conductivity gas fill. At least a portion of the baffle carries a low emissivity surface for suppression of infrared radiation.

Abstract: A seat cushion section with a fiber core is elastically deformable and combined with a plastically deformable shock absorber seat section to form a seat structure, for example for an aircraft passenger seat. The fiber core of the cushion section has fibers therein which are substantially continuous or uninterrupted within the core volume because each fiber has only two ends and extends otherwise uninterrupted throughout the core volume between these two ends so that any pin effect of fiber ends sticking out of the cushion is minimized. The shock absorber seat section includes plastically deformable elements, such as honeycomb cells, for protecting a passenger during a crash.

Abstract: A sound-absorbing multi-layer structure is disclosed comprising a structural part which is capable of oscillating and a loosely engaging damping sheet, which sheet comprises a flexible material and high material absorption factor and is made up of a heavy sheet with a viscoelastic support layer tightly connected thereto. The support layer comprises a plurality of angularly constructed support elements which are shaped and arranged so that together with the structure which can oscillate and the flexible heavy sheet they form a coherent labyrinth of hollow spaces with acoustically effective cavities.

Abstract: A body 20 includes a support structure 30 in which is formed monolithic aerogel 32 and has terminal insulating properties or other desirable properties. The body 20 can be enveloped in an impermeable membrane 34, 36 so as to allow a vacuum or another environment to be contained in the aerogel 32. The support structure 38 can include individual cells 22, each of which can support its own independent environment which is unaffected by the accidental or planned interruption in the environment of any adjacent cell 22.

Abstract: This invention is directed to a dieboard comprising a rigid core of a plastic material, such as polyurethane, having a polyurea-cellulose composite secured to its opposed major surfaces. The polyurea-cellulose composite imparts substantial dimensional stability to the laminated dieboard. A layer of a liquid impermeable material, such as a film, can be secured to the outer major surfaces of the dieboard. By making this outer layer of a light color, such as white, the projection of CAD or hand-drawing slotting templates onto the dieboard surface is facilitated.

Abstract: A curved panel formed of joined corrugated strips with a series of crimps in one side of each strip so that the crimped side is shorter than the non-crimped side resulting in a curved strip which is joined to other such strips in a side-to-side fashion to form a curved core with honeycomb cells therein, and on which coverings are placed to form a panel.

Abstract: A shock absorbing wrap for sporting equipment that will absorb vibrations felt by a player using said equipment as well as aid the players grip on the equipment. The wrap may be wound in an overlapping fashion and securely clamped in place or it may be adhered to the piece of equipment. The outer facing of the wrap can be perforated to provide a non-slip surface. Alternatively, the wrap can be used underneath a more traditional leather wrap.

Abstract: A lightweight hybrid structural energy-absorbing panel having a plurality of layers of soft energy-absorbing material, such as Kevlar, disposed between facesheets with a plurality of rigid rod members extending between the facesheets through the layers of energy-absorbing material to structurally connect the facesheets, such panel to absorb the energy of ballistic projectiles.

Abstract: Composite tube, which is a sandwich structure, comprising a plurality of fiber strata, each made of epoxy-saturated fibers, and at least one layer of a honeycomb material sandwiched between. The fiber strata and the honeycomb layers are in alternating sequence. Each fiber stratum may include a fiber web surrounded by a fiber cable, which consists essentially of a large number of twisted fibers arranged in the axial direction and parallel to each other. The composite tube of this invention is very light in weight, yet has tensile strength and other mechanical properties corresponding to those of conventional tubes made of steel. The tube of this invention is especially useful as a guide roller or an expansion shaft.

Abstract: This invention is directed to a high strength, lightweight honeycomb core composite sandwich panel. Typical composite sandwich panels comprise a honeycomb panel disposed between upper and lower composite panels. In this invention, a shim is disposed between the upper and lower composite panels around a portion of the periphery of the composite sandwich. The shim is disposed over an inner layer of foaming adhesive.

Abstract: The lightweight constructional element of a sandwich structure having two cover plates comprises a honeycomb structure arranged between the cover plates which holds the cover plates spaced from each other. The honeycomb structure is formed by empty cans, especially used beverage cans, placed side by side whose axes are at right angles to the cover plates and which are arranged in a close packed or a rectangular array. The cans may be attached by adhesive to form a low cost lightweight and strong array.

Abstract: A three-dimensional structure adapted for use for instance as a core in sandwich panel-type construction, and comprised of substantially continuous unbroken sheet material to which has been imparted an alternating sequence of ridges and valleys, creating spaced rows of adjacent inclined rectangular-shaped facets connected by intermediate rows of adjoining parallelogram-shaped facets. The core structure provides substantially gridlike bearing surfaces on two opposing parallel bearing planes thereof to which face sheets may be affixed, to form a sandwich panel.

Abstract: A package for preserving perishable food products such as produce shipped in large quantities on a pallet wherein the invention includes panels formed of honeycomb material covered by aluminum foil panels to provide a stronger and better insulated package.

Abstract: The invention is generally accomplished by providing a roll having cavities suitable for retaining small quantities of particulate material. The roll further is adapted to be rotated such that the particulate material is deposited onto a web in discrete areas. These areas correspond to the depressions on the roll. The apparatus and method of the invention further provides in its preferred form a roll applicator device for adhesive having a series of lands and valleys wherein the lands correspond to the areas between the discrete particulate material. The applicator roll provides adhesive on the land area that is transferred to a web of material which is brought into contact with the substrate bearing the discrete deposits of particulate material and sealed thereto. There is thereby provided areas of discrete particulate material securely separated by the adhesive connected webs.

Abstract: The composite product consists of a central body is formed of a substance or a material having poor mechanical properties and is in the form of a beam or wedge having a large thickness with respect to width, said central body being is covered, at least over its length by a film or a sheath made of a heat shrinkable plastic shrunk by any suitable heating means after being placed in position around said central body said sheath surrounding the central body is produced by winding thin strips of at least one shrinkable film strip with the adjacent edges of the overlapping strips. The wrapped film can be heat shrunk and the adjacent edge thermally welded by the same heat treatment. The composite and the product can be utilized to produce casing elements for concrete or wedging blocks.

Abstract: A composite plate contains a core layer with a honeycomb structure between two cover layers, the first cover layer of which carries a decorative panel and the second cover layer of which carries a rear protective plate. The adhesive bonds of the composite plate consist of a layer of a relatively nonflammable adhesive. The protective element, made of a silicate base (but without asbestos) or a non-combustible mineral substance base, is adhesively bonded to the rear side of the composite plate.

Abstract: The invention provides a baseboard for use particularly, but not exclusively, as a playboard, as bases for model railway and other track layouts, and for displays, the baseboard comprising a core and a closed box structure surrounding and totally enclosing said core. The core, of an open-cell material, is provided with corner blocks of plastics material, and the edges of the core may be faced with strengthening material.The box structure is formed from a one-piece blank of cardboard material, the blank carrying jointing components so that a plurality of baseboards may be removably connected together.

Abstract: The invention relates to a plastic construction member, in particular an impact-absorbing external body panel, such as an engine hood or mudguard for a motor vehicle. The body panel is formed of a sandwich construction having inner and outer skins bonded to a soft core of, for example, hard foam, a honeycomb structure or paper webs. The connection between the surface of the skins and that of the core is selectively interrupted. In this way, crumple zones are formed in selected regions of the body panel.

Abstract: A method of constructing an equipment pad and the resultant pad is disclosed. The method comprises the steps of providing a mold with fiberglass material laminated to the interior walls of the mold, providing a layer of polymer concrete in the base of the mold, covering the layer of concrete with a sheet of fiberglass material, covering the fiberglass material with an additional layer of polymer concrete, placing honeycomb material on the additional layer of concrete, filling selected cells of said honeycomb material with a polymer concrete, laminating a fiberglass sheet to the upper surface of the honeycomb material and sealing the upper sheet of fiberglass to the fiberglass laminated to the walls of the mold. The finished pad is then removed from the mold and inverted. If desired, an opening may be molded into the pad.

Abstract: Helicopter rotor blade constructed of composite materials has a structural core (1) and a covering of profiled cladding (8). The structural core (1) includes all the structural elements of the blade, while the covering of the cladding (8) is a non-stress-bearing covering comprising an external rigid and thin shell (9a-9b), with the desired aerodynamic porfile, and a layer (10a-10b) of a ligth and flexible comformable non-stress-bearing material, such as a foam, ensuring the filling between the structural core (1) and the external shell (9a-9b). The foam layer (10a-10b) absorbs and compensates for the differences in shape between the contour of the structural core (1) and the precise aerodynamic profile of the non-stress-bearing external shell (9a-9b). The blade covering is expendable and evolutive spanwise as well as chordwise, with an external shell exhibiting an excellent surface condition, good erosion behavior and impact resistance, and easy to repair.

Abstract: A supporting matrix for catalytically active compounds, for use, for example, in catalysts for the catalytic cracking of nitrogen oxides, is constructed of a metal core (1), an intermediate layer (3) of vitreous enamel bonded onto this core, and a porous ceramic cover coating (5) applied to the vitreous enamel intermediate layer.The supporting matrix is made by dipping the metal core into a vitreous enamel slip followed by firing at 800.degree. to 900.degree. C. The enameled metal core is then fired in a second firing to form the ceramic cover coating which represents the actual support for the catalytically active compounds.

Abstract: A honeycomb panel structure for thermal and acoustic insulation and for load bearing capability has a honeycomb panel which comprises a honeycomb core laminated with two facing plates, and a pair of housings. Each housing has a channel to engage and support a edge of the honeycomb panel. A first neutral axis passes through the center of gravity of the honeycomb panel and extends in the direction of the panel. A second neutral axis passes through the centers of gravity of the housings and extends parallel to the first neutral axis. The first and second neutral axes are spaced apart in a vertical direction so that the structure has much higher flexural rigidity.

Abstract: The present invention relates to fabricated metal toilet stall panels comprising opposed panel sheets, each having flanged edges which cooperate to define an essentially hollow core. The panels at the flanged edges include an inwardly directed sealing flange in abutting opposed relation with the like sealing flange of the opposed panel sheet. The metal panels are at least primarily secured to each other by an adhesive seal between the sealing flanges. The method of the present application comprises forming of the metal panels, including the flanged edges with the inwardly directed sealing flange, placing opposed panels in abutting contact such that the sealing flanges generally engage, applying an adhesive between the sealing flanges, and maintaining the particular relationship of the panel sheets until the adhesive has cured to an extend sufficient to maintain the engagement of the panels.

Abstract: The invention includes a composite panel and a method for manufacturing it. The panel has a smooth polyester plastic face, a first fiberglass reinforced polyester layer adjacent to the smooth face, a honeycomb structure core of polypropylene plastic with one face adhered to the first polyester layer, and a second fiberglass reinforced polyester layer adhered to the second face of the core. The panel is manufactured by assembling the components in a series of steps and curing the polyester layers in sequence on a flat horizontal mold.

Abstract: A process for producing a laminated panel core made of stainless steel includes the step of preparing a core of the laminated panel by subjecting stainless steel foils to repeated outward and inward foldings in a constant mode in one direction to make a plurality of multi-layered folded sheets of stainless steel. An adhesive is applied to a portion of the surfaces of the folded sheets and a desired number of the multi-layered sheets are laminated. The adhesive causes the sheets to adhere to one another in the areas of application of the adhesive. The laminate is sliced in a plane perpendicular to the plane generally defined by each of the multi-layered sheets into an appropriate small thickness and is extended and deformed in a plane parallel to the plane in which the laminate is sliced and in the direction of lamination of the sheets. A multi-layered sheet for use in a process for forming laminated panels and a stainless steel foil core for use in a laminated panel are also disclosed.

Abstract: A composite material of metals and nonmetallic substances exhibits the following structure:(a) a first material of high mechanical strength and(b) a second material of high oxidation-resistance, both at elevatedtemperatures are arranged so that the latter completely envelopes the former.

Abstract: Drainage mats with high compression resistance comprising two fabrics and grains fixedly arranged therebetween, wherein the grains are placed in one layer and are spaced a distance of at least 50% of the average grain size. One of the two fabrics is basically a filter layer, whereas the second fabric can be a filter layer or a tightly woven strip. In addition, a three-dimensional mat with positioning seats for the grains can be placed between the two fabrics. This drainage mat is suitable for constructing waste-dump bases.

Abstract: A light weight structural composite comprised of a cellular core having high dynamic load-bearing properties and a fiber reinforced resinous skin on all edges of the core and on the top and bottom surfaces thereof. The cellular core may comprise an array of balsa wood blocks, the skin may comprise a fiberglass reinforced epoxy or polyester resin, and the core and skin may be formed into a monolithic composite which is particularly suitable for use as a high strength to weight ratio ground opening cover.

Abstract: Rigid lightweight composite panel. The panel comprises a honeycomb core, and sheets of rigid lightweight polyvinyl chloride (PVC) having a foamed center and smooth matte surfaces, bonded directly to opposite sides of the core, preferably by thin layers of pressure sensitive adhesive material. The panels are useful as custom exhibits and for other purposes.

Abstract: Described herein is a porous ceramic structure consisting of a ceramic roll core or an assembly of ceramic roll cores each comprising: consecutively aligned pairs of inclined cylindrical cell units of oblique figure "8" shape, each cylindrical cell unit having a width of 5-30 mm, a height of 10-100 mm and an angle of inclination of 20-70 degrees.

Abstract: A composite structure having a high stiffness to weight ratio includes a substrate, e.g. graphite, defining at least a pair of outer surfaces which are spaced from each other and having a volume or void passages extending through the substrate between the outer surfaces. At least one stiffening element extends between the outer surfaces within this volume. The stiffening element defines a volume and has at least one wall intersecting each of the outer surfaces. The stiffening element and the outer surfaces are made up of a chemically vapor deposited material having the desired high stiffness to weight ratio and being formed as a monolithic structure having a thickness of at least about 1 millimeter. These structures have such diverse uses as aircraft parts and skis.