Abstract: This invention relates to a novel laminated paperboard and, more particularly, to a novel laminated paperboard with a center ply having alternating grooves and ridges, which has characteristics of strength and rigidity equivalent to solid laminated paperboard, but is 30% to 45% lighter in weight.

Abstract: A lightweight, high strength moldable structure is comprised of a core having a plurality of interconnected cavities. Each solid-walled cavity has a hexagonal base so that the core of the structure has upper and lower surfaces. Each solid-walled cavity has a unique tetrahexagonal shape in which a regular tetrahedron is located on top of and integrated with a hexagonal base. The walls of the cavities may be solid or they may be defined by a series of support struts for an even lighter weight structure. The upper and lower surfaces may be covered by skins, making it suitable for boat hulls, vacuum chambers, and aircraft.

Abstract: A portable container is provided consisting of an encasing member arranged so as to form a space in which objects can be carried and a handle member, consisting of at least one handle loop of string or similar material, which is attached to the encasing member. Attachment of the handle loop is accomplished in part by inserting at least one section of the string or similar material between two material layers of the encasing member, which are joined together by means of adhesive, whereby a channel is created between the layers of material through which said section of the handle member extends and in part by the nonuniformity in cross sectional shape over the length of said string or similar material when positioned in said channel in the completed package and by giving the channel such a form, that its shape and dimensions at least to a certain extent follow said nonuniformity in the string.

Abstract: A plastic sheet is disclosed which is used as a subcarrier for insulating linings of building surfaces. The sheet is formed by parallel, alternating, dovetail-shaped channels and grooves. A coarse-meshed lattice matting, having filaments, is glued or partially fused to the backside of the plastic sheet and serves to anchor the sheet to the underlying foundation. This lattice matting stretches over the entire backside or inner surface of the sheet. The webs of the plastic sheet are expandable and can compensate for stresses occurring between the underlying foundation and the external facing material such as ceramic tile.

Abstract: The ceramic packing is cast in one piece and comprises parallel corrugated layers which extend substantially transversely to the longitudinal direction of the packing with at least two joins provided between the adjacent layers.

Abstract: The present invention pertains to a structure resistant to the transmission of forces of impact which is useful in the fabrication of articles subjected to impact forces by the user of the articles. The structure includes a double plush-like open mesh structure having first and second layers of interlaced stretch-resistant flexible strand material positioned adjacent each other, and defining an intermediate space therebetween. A plurality of elongated partitions are disposed between the first and second layers and divide the intermediate space into a plurality of elongated generally parallel channels. The partitions each comprise a plurality of pile stretch-resistant strand material connecting with the first and second layers in a plane generally perpendicular to the first and second layers.

Abstract: A method and kit for helping relieve tension and stress includes inflatable cellular assemblies, which are either configured in the shape of a desired design, or bears markings in the shape of a desired design. A mallet is used for striking the individual cell chambers so as to explode said cells with sound producing force thereby releasing the gaseous contents of the chamber, the sound and gaseous contents further stimulating the user's physical senses to produce humor and amusement whereby the user's tension and stress is relieved.

Abstract: A component for cladding apertures in the fuselage of an aircraft is to be of lighter weight and more corrosion resistant as compared with known claddings. The component is manufactured of carbon fibre reinforced curable synthetic resin and comprises a base layer (2) onto which U-profiles (4, 4') and L-profiles (5, 5') are placed in spaced apart interrelationship, which during the manufacture are held in place by a grid (14) comprising angular bridge members. A vacuum foil (7) is applied over this assembly and is adhesively bonded along the edges of the base layer (2') to the supporting surface (1). The space between the vacuum foil (7) and the supporting surface (1) is evacuated and curing proceeds at an elevated temperature and pressure. After complete curing the vacuum foils (7) and the grid (14) are removed.

Abstract: Foraminous plates formed from coiled or parallel tape lengths may be inserted between the tubesheet and a ported casing-end in a hollow-fiber type permeator, to convey effluent from the fiber lumens to the port and to support the tubesheet against the pressure differential between its inner and outer faces. The face of the support plate which the tubesheet will bear against is defined by edges of the tapes, which are held radially or laterally apart by spacing means adapted to permit effluent flow through the plate between the tapes. Either the casing-end or the plate surface bearing against it is grooved.

Abstract: A sealing profile formed of rubber or rubber-like material is provided for sealing tunnel segments which have circumferential recesses. There is a plurality of slotted grooves running parallel in the lengthwise direction on the base side of the profile and a plurality of channels running parallel in the lengthwise direction, the number of channels being no greater than the number of slotted grooves and at least one channel being in alignment with a corresponding groove.

Abstract: Disclosed is a film having antistatic characteristics and a method to make the film. The film comprises a blend of polyether block amide copolymer with an aromatic sulfonamide antistatic agent.

Abstract: Thermoplastic film, permeable to liquids, used particularly as a covering film for absorbent material, whose openings are formed as projections on one side only of the film, and having its narrowest cross-section in a plane different from that of the smooth side of the film. The cross-section of the opening widens on passing from its narrowest point towards the free edge of the projection on film. The free edge of the projection can be irregularly lobed or wrinkled.

Abstract: Bubble-type flexible cushioning and packaging sheets are formed using films which are composites of single extrusion or multiple extrusion polyethylene films having density, molecular weight and, optionally, additives selected to provide a desired combination of qualities including heat sealability and low gas/vapor transmission. A preferred film material has a cross-sectional profile consisting of an inner region of linear low density polyethylene material surrounded by outer regions of high molecular weight medium density polyethylene material. The material permits the formation of preferred, square bubble configurations using a process which involves sealing two such films along generally parallel longitudinal lines; inflating the films between the longitudinal sealing lines; then sealing the films along transverse lines to form inflated rectangular pockets or bubbles therebetween.

Abstract: The stretchable composite comprises a liquid-pervious layer, liquid-impervious layer, an absorbent layer, and a stretchable layer. The stretchable layer is stretch-bonded to the other layers and, upon relaxing the stretched layer, a plurality of rugosities are formed in the liquid-pervious layer, liquid-impervious layer, and absorbent layer. A method is provided for making the composite.

Abstract: A panel having high strength relative to its weight is made of rigid material and is formed with a plurality of open cells, each open at one side, and with a plurality of closed cells, each closed on all sides. Each of the open cells is surrounded on all its sides by a plurality of the closed cells, and each of the closed cells is surrounded on all its sides by a plurality of the open cells.

Abstract: Disclosed is a thermoplastic polymeric composition having antistatic characteristics and a method to make same. The composition comprises a thermoplastic polymer in admixture with an antistatic agent. In one embodiment the polymer is nylon 12 and the agent is N-butyl benzenesulfonamide. Also disclosed is the antistatic polymeric composition in a film, which is useful for packaging static sensitive devices such as electronic circuit boards, or for packaging devices that must be protected from static electricity such as devices in a medical operating room where explosive oxygen and/or ether are present.

Abstract: In greenhouses and other stuctures an excessive amount of sunlight on a hot day may cause overheating or may cause uneven lighting. A sheet is provided which is normally transparent but which becomes white and light-reflective at a predetermined temperature to help keep the structure cooled or help keep its lighting at a constant level. This color is reversible so that the sheet becomes transparent when the temperature falls. In one embodiment, the sheet consists of a unitary transparent plastic resin structure formed with elongated cells which are filled with a thick and viscous gel containing poly (vinyl methyl ether) or other suitable "cloud point" material. The gel helps prevent loss of water through the cell walls and prevents gaps which may occur from migration over repeated cycles of precipitation of the cloud point material, i.e., it helps keep the mixture homogeneous.

Abstract: A foam composite - especially useful as an insulating board - comprising first and second oppositely disposed corrugated skins having a core of foam material therebetween, and a reinforcement medium located at the interface between the foam core and each skin, the foam extending through interstices or pores in the medium and bonding to the medium and to the skins. The reinforced composite so formed has increased resistance to bending and other deformations and improved dimensional stability.

Abstract: Air encapsulating cellular material in which failure due to the rupture of individual ones of the cells thereof is substantially prevented. The material comprises a sheet defining a plurality of air encapsulating cells in a substantially uniform pattern. At least a pair of adjacent cells are in flow communication so that upon direct pressure to one of such cells, the air may be displaced and can flow to the adjacent cell. In this manner, air pressure build up in one cell which may otherwise have resulted in its rupture, is prevented.

Abstract: A cushioned bag has two adjacent multilayered sections comprising an outer layer of flexible thermoplastic material, a middle layer (or partial middle layer) of polyolefin film, and an inner layer of cushioning material. The sections are fused together along at least one edge of the bag to form a seamed edge comprising a fused bead. Apparatus for making a bag having a beaded edge includes cooperating heated jaws between which the bead is formed. A method of using the apparatus to make the bag includes rotating take-up rolls faster than feed rolls to pull the bag cleanly away from the jaws along the bead forming the seamed edge.

Abstract: Cushioned strap including a continuously woven or knitted fabric having two flat portions separated by a tubular portion, and a plurality of length of yarn positioned in the tubular portion and extending substantially freely through the tubular portion between the end portions thereof. The cushioned strap provides good appearance and comfort and can be manufactured economically.

Abstract: A multilayer fabric including a plurality of layers of distinct fabrics each consisting of ground warps, ground wefts, connecting warps connecting the layers of the distinct fabrics, and temporary wefts which can be broken by external action after weaving. These temporary wefts are, for example, made of weaker yarn compared with the other yarn, so when the external action is applied to the multilayer fabric, there is no chance of damaging the connecting yarn. Thus, the multilayer fabric can easily be expanded to a large thickness.Also, a fabric form made of the multilayer fabric and composite structure made of the fabric form and filling matter.

Abstract: A subflooring composite is especially useful in a van. The composite comprises a plastic core having a thin planar bottom surface layer, a thin planar top surface layer and a series of substantially equi-spaced and generally vertically extending support walls connecting the bottom and top surface layers. A foam underlay is adhered to the plastic core's underside. The subflooring composite has good structural strength, insulation properties, and acoustic qualities. It is readily precut to abut against the interior vertical walls of the van.

Abstract: A dunnage shock absorber and a method and apparatus for making the same is disclosed. The shock absorber is constructed from plastic material which forms a series of trigonal-shaped, gas-filled units which maintain adequate shock absorbing characteristics over a broad range of temperature conditions. This disclosed method includes the steps of forming a plastic tubular body, introducing a cooled gas into the body and forming individual trigonal-shaped united having cooled gas entrapped through angularly heating sealing the edges of such units. The disclosed apparatus forms plastic film into a series of gas-filled trigonal units through the use of fin seal rollers to seal the film into a tubular body. Sponge-like rollers downline of the fin seal rollers grip the tubular body and a conduit injects cooled gas into the tubular body. Horizontal and vertical sealers are provided downline of the sponge-like rollers to heat seal the tubular body with gas entrapped therein.

Abstract: Kit for preparing a package for dispensing solid products such as pills, said kit comprising:(1) at least one blister tray having a single compartment or an array of compartments, and(2) at least one sheet bearing an adhesive on one major surface thereof and having dimensions such that it is capable of covering said single compartment or said array of compartments.In another aspect of this invention, a plurality of the aforementioned sheets can be aggregated into a pad, from which the sheets can be conveniently dispensed.

Abstract: A subterranean drainage unit for protecting a structure by intercepting subsurface fluid flows, comprising a sheet base member having parallel first and second planar surfaces, regularly spaced discrete frusto-conical members projecting from the first planar surface creating intersecting channels to allow for lateral and vertical uninterrupted flow of fluid, the second planar surface being constructed and arranged to cohesively adhere to the surface of the structure being protected and a filter media supported by the projections to maintain a substantially rigid surface which is non-interfering with the flow of fluid within the intersecting channels.

Abstract: A tubing plank is fabricated from foamed tubular members positioned parallel to and adjacent each other, the members having substantially coplanar longitudinal axes, and each member secured to each adjacent member along adjacent sidewalls to form a planar member. A sheet member may be applied to at least one face of the tubing plank, each sheet member forming a contact area. In another embodiment, tubular members are positioned parallel to and spaced apart from each other, adhered to at least one sheet member. A second sheet member may be adhered to the opposite face of the tubes from first sheet.

Abstract: A masking member for use in a spray coating process comprising a molded foamed polystyrene panel having a thickness A, said polystyrene panel having a closed cell structure, a density in the range 12.5-50 g/l, a layer of emulsion-type adhesive formed on one side of said panel, a release sheet covering said adhesive layer, said panel being provided with grooves formed on one or both sides of said panel, when said grooves are formed on both sides of said panel the grooves are directly opposite each other, said grooves having a depth such that the thickness of the polystyrene panel beneath or between said opposed grooves is in the range about 0.30-0.85 A, is presented. When said masking member is used, said release sheet is removed from said adhesive layer and said masking member is snapped along said grooves by hand to a piece having a size corresponding with a part of an article which is necessary to be protected from a surface treatment.

Abstract: A steering wheel core material of continuous filament FRP for vehicles which is made up of a ring, a boss positioned at the center of the ring, and spokes connecting the boss to the ring, said boss being integrally joined to a boss metal fitting. It is formed by winding resin-impregnated continous filaments in layer around the ring- and spoke-forming mold and the body of the boss metal fitting, with an elastic material interposed between the body of the boss metal fitting and the FRP.

Abstract: A polyorganosiloxane composition having a biocompatible surface thereon is disclosed. The biocompatible surface results from the derivatization, or amination, of the surface intended for cell contact. More specifically, the present invention is a polyorganosiloxane composition in which the surface is either treated with a primary amine and optional peptide or the surface is co-cured with a primary amine-containing silane or siloxane. The aminated polyorganosiloxane has utility as a cell culture substrate or in a variety of artificial organ applicatons such as breast implants, synthetic blood vessels, joints, tendons and heart valves. A vacuum apparatus for use with specialized cell cultrue plates incorporating the biocompatible polyorganosiloxane composition is also disclosed.

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 self-contained thermal insulation panel, of generally flat rectangular form suitable for placement within the walls or doors or a refrigeration cabinet, consists of a hermetically sealed envelope surrounding an assembled framework defining a plurality of thin parallel internal cavities. The cavities are formed by a plurality of thin stretched-out sheets, each preferably with at least one reflective face, spaced-apart by thin interlocking peripheral gaskets between a top and a bottom frame member. A method of manufacturing an insulation panel according to this invention requires the initial assembly, on a first frame member, of an alternating array of thin sheets and gaskets, then a final sheet and a second frame member all brought firmly together and permanently affixed as a unified assembly. The assembled structure is then evacuated and refilled with a heavier-than-air gas or low thermal conductivity, e.g.

Abstract: This invention relates to the production of laminated structures consisting essentially of a light weight interior member prepared from a glass, glass-ceramic, or ceramic, an exterior member prepared from a glass, glass-ceramic, or ceramic, and a bonding member prepared from a glass, glass-ceramic, or ceramic. The light weight interior member may be composed of a porous body, a corrugated body, or a honeycomb body. In a preferred embodiment, at least one of said members is reinforced through the entrainment of ceramic fibers and/ or whiskers. In the most preferred embodiment, each exterior and interior member is reinforced through the entrainment of ceramic fibers and/or whiskers and the bonding member is reinforced through the entrainment of ceramic whiskers.

Abstract: A gas-filled pad for absorbing shocks and the like, the pad comprising: a pair of heat-sealed laminates defining therebetween a cavity; a pressurized gas sealed within the cavity; and wherein each of the laminates comprises a flexible strengthening member having a pair of opposite major sides and being impervious to the gas, and a pair of thermoplastic films each bonded to one of the opposite sides of the strengthening member, the pair of thermoplastic films extending beyond the outer edge of the strengthening member and being heat-sealed together in the region where the films extend beyond the outer edge of the strengthening member to thereby totally enclose the strengthening member.

Abstract: Disclosed is a thermoplastic plymeric composition having antistatic characteristics and a method to make same. The composition comprises a thermoplastic polymer in admixture with an antistatic agent. In one embodiment the polymer is polyethylene and the agent is a mixture of polyethoxylated cetyl alcohol and glyceryl monostearate. Also disclosed is the antistatic polymeric composition in a film, which is useful for packaging static sensitive devices such as electronic circuit boards, or for packaging devices that must be protected from static electricity such as devices in a medical operating room where explosive oxygen and/or ether are present.

Abstract: An energy-conserving light-transmitting thermal barrier is disclosed in the form of a packet consisting of two light-transmitting plastic or fiberglass translucent panels between which is sandwiched a multi-layered light-transmitting insulation which consists of clear thermally-insulating flexible plastic sheets on which there are flat air-filled bubbles. The panels may have inner ribs which press on the multi-layered insulation, and the ribs may have barbs to pierce and hold the insulation place. The packets are employed to cover light-transmitting openings in a building. When the packets are supported in rigid frames, such frame assemblies can be used as openable light-transmitting barriers to cover windows, doors and skylights.

Abstract: A polyorganosiloxane composition having a biocompatible surface thereon is disclosed. The biocompatible surface results from the derivatization, or amination, of the surface intended for cell contact. More specifically, the present invention is a polyorganosiloxane composition in which the surface is either treated with a primary amine and optional peptide or the surface is co-cured with a primary amine-containing silane or siloxane. The aminated polyorganosiloxane has utility as a cell culture substrate or in a variety of artificial organ applications such as brest implants, synthetic blood vessels, joints, tendons and heart valves. A vacuum apparatus for use with specialized cell culture plates incorporating the biocompatible polyorganosiloxane composition is also disclosed.

Abstract: The invention relates to synthetic resin plates comprising a coextruded synthetic resin foam layers. The synthetic resin plate comprises a main layer having continuous hollow chambers. Due to the presence of the coextruded synthetic resin foam layer, a completely flat plate can be obtained.

Abstract: A hollow plate made of synthethic resin including hollow portions, and contacted portions intermittently formed by bending the lower face of each of the hollow portions inward and then contacting it with the underside of an upper face, wherein the lower face at each of the contacted portions is tapered to become thicker and thicker toward its center.

Abstract: An air-borne and footstep noise insulating panel of synthetic resin foam is provided for floating floor pavements or floating wooden floors, said panel having in the interior thereof a multiplicity of voids extending normal or obliquely from one panel edge to the opposite panel edge. The panel preferably consists of a flexible closed-cell synthetic resin foam having a volume weight of 15 to 25 kg/m.sup.3, especially less than 20 kg/m.sup.3, having a cell diameter of less than 0.3 mm, and exhibiting good elastic recovery. The insulating panel has a dynamic stiffness, measured according to DIN 52214, of 1 to 13 MN/m.sup.3 and also possesses the required properties regarding long-term, burning, and insulating behavior.

Abstract: The floatable element or pad including a body of floatable material, such as for example a low density polyethylene, or a high density cross-linked polyethylene, and the like, having a horizontal cross-sectional shape, such as hexagonal, enabling a plurality of such floating elements or pads to engage in flat surface-to-surface contact thereby providing a substantially gapless floating insulating cover. In one embodiment, the floatable element or pad includes top and bottom layers, side walls, and a plurality of thru-posts extending between the top and bottom layers and providing structural rigidity thereto, and wherein the top and bottom layers, side walls and thru-posts cooperatively provided a plurality of dead air spaces providing additional insulation between the liquid, slurry, semi-liquid or the like on which an insulating floatable cover comprised of such floatable elements or pad is comprised.

Abstract: An end portion of an elongate member of generally cylindrical form, such as an optical fiber, is placed in a predetermined position utilizing a substrate having a surface that is defined by a generatrix that is a straight line, e.g. a flat surface. A foil of flexible material is secured to the surface of the substrate and defines with the substrate a generally straight, elongate passageway that is parallel to the generatrix of the surface and has a first portion of substantially uniform cross-section adapted to receive an end of the elongate member in closely fitting relationship and also has a second portion that tapers towards the first portion. The end portion of the elongate member is inserted into the first portion of the passageway by way of the second portion thereof.

Abstract: A composite cover having high load-bearing capacity comprising an upper and a lower skin of fiber-reinforced plastic material, the upper and lower skins being integral with one another around the edges of the cover and spaced apart from one another therebetween, the space so formed containing reinforcing walls of fiber-reinforced plastic material extending between the upper and lower skins, the reinforcing walls being integral with the upper and lower skins where they contact the same, the voids between the reinforcing walls being filled with lightweight infills, and the skins and reinforcing walls being resin impregnated so as to form one solid integral unit substantially free of joints or seams.

Abstract: An article of insulation and a method for making same. Outer sheet-like elements (22,24) of elastic deformable material are secured by adhesive to a base element (20) of rigid deformable material in a particular pattern which defines unbonded areas which are each bounded entirely by adhesive. The combination of the two outer elements (22,24) and the base element (20) is then deformed, following which the base element (20) retains its deformed shape while the outer elements (22,24) spring back to their original shape, leaving voids between the base element (20) and the outer elements (22,24) in which there is a partial vacuum.

Abstract: Stenciling zone for a radiant heat resistant inflatable structure wherein a surface ply is laminated to structural fabric piles of the structure, leaving a cavity between the surface piles and the structural piles with a spacer element such as aluminum foil being received in the cavity. Stenciling is accomplished over the surface ply and the resultant structure can readily pass FAA standard TSO-69A, Appendix II.

Abstract: A process and apparatus are disclosed for producing a plastics laminate material comprising a lamina of low density foamed polymeric material such as a non-cross linked polyethylene foam and a lamina of high density non-foamed polymeric material such as high density polyethylene, wherein the low density lamina is of at least 50 times greater thickness than the high density lamina, characterised in that the individual laminae are physically bonded between nip rollers at critical conditions of elevated pressure (e.g. 40 to 50 p.s.i.) and temperature (e.g. 125.degree. C. to 150.degree. C.) to bring about a very strong bond such that the bonded laminae do not readily peel apart. Temperature is particularly critical and should be brought close to and not substantially above the tackifying temperature of the low density foamed material. Air is preferably entrapped between the laminae during the process.

Abstract: A dunnage shock absorber and a method and apparatus for making the same is disclosed. The shock absorber is constructed from plastic material which forms a series of trigonal-shaped, gas-filled units which maintain adequate shock absorbing characteristics over a broad range of temperature conditions. This disclosed method includes the steps of forming a plastic tubular body, introducing a cooled gas into the body and forming individual trigonal-shaped units having cooled gas entrapped through angularly heat sealing the edges of such units. The disclosed apparatus forms plastic film into a series of gas-filled trigonal units through the use of fin seal rollers to seal the film into a tubular body. Sponge-like rollers downline of the fin seal rollers grip the tubular body and a conduit injects cooled gas into the tubular body. Horizontal and vertical sealers are provided downline of the sponge-like rollers to heat seal the tubular body with gas entrapped therein.

Abstract: A two-ply sheeting material is provided with open ended dimples formed in the lower layer that will trap air and ensure flotation when the sheeting is deployed on a swimming pool as a pool cover. The upper sheet is bonded to the tops of the dimples to form a thin planar cavity. When coupled to a water circulating system, the combined two-layer product can usefully perform both as a pool cover and as a solar absorber adapted to warm the water circulating therethrough.

Abstract: A plastic multilayer multiple-wall panel, manufactured by the coextrusion of a plurality of adhesively bonded layers of thermoplastically extrudable synthetic resins by means of a multicomponent extrusion die, and comprising a supporting core layer of polycarbonate resin with a plurality of continuous hollow chambers, a UV absorption layer, boned on one or both sides of said core layer and made of a synthetic resin containing at least 2 weight percent of a UV absorber that is volatile at elevated temperatures, and a cover layer, on that side of the UV absorption layer which faces away from the core layer, of a synthetic resin which contains less than 2 weight percent of volatile UV absorber.

Abstract: A cold weather garment system includes an upper body garment and a lower body garment. Each garment has three layers, an outer wind resistant shell fabric, an inner loosely knit or woven lining fabric, and a non-flat foam layer between the fabric layers. The face of the foam layer abutting the inner lining fabric is convoluted, having peaks and valleys. The peaks are disposed in a grid-like arrangement, with ridges between the peaks, and four peaks surrounding a valley, and four valleys surrounding a peak. The foam is open cell polyurethane or polyether foam, and has a thickness of at least 1/2 inch, and preferably about one inch. The thickness of the valley portions of the foam is about 1/2 that of the peak portions. The convoluted form of the foam increases flexibility and reduces material and weight, and provides added surface area for moisture transfer.