Abstract: A large ceramic substrate article for electronic applications including at least one layer of sintered ceramic material, the layer including a plurality of greensheet segments of ceramic material joined edge to edge. Also disclosed is a method of fabricating a large ceramic greensheet article as well as a large ceramic substrate article.

Abstract: A tile application backing material is disclosed having as an object thereof to greatly simplify tile allocation, positioning, and affixing and the like, and to strongly affix tiles and backing material to a laying surface; in order to achieve this object, this tile application backing material is formed with a plurality of frame members disposed extending along sides of tiles having a polygonal shape, said frame members being connected at mutual points of intersection; these frame members comprise a base portion which is in contact with a laying surface and dividing plate portions which are disposed thereabove. By means of this, after allocation has been determined by means of this backing material, in a state in which this backing material is temporarily attached to a laying surface to which tiles are to be applied, adhesive is allowed to flow into a plurality of regions demarcated by means of the dividing plate portions and by means of the inlaying of tiles, tile application is easily accomplished.

Abstract: A laminate has at least two layers, at least one of which comprises a polymer having more than one perfluorocyclobutane group. Such polymers impart qualities of enviornmental or protection, chemical and solvent resistance, hydrolytic stability, lubricity, low dielectric, hydrostatic stability, weatherability, flame resistance, chemical resistance, hydrolytic stability, lubricity, environmental protection, scratch resistance, solvent resistance, surface passivation, water repellancy, lower surface refractive index, lower surface coefficient of friction, fluid barrier properties, oil repellancy, thermal stability, and/or reduced moisture pick-up. Additionally, the coatings are optically clear, easy to apply either neat, in a solvent or otherwise, have relatively low cure temperatures for their temperature resistance, and exhibit insulating and planarizing capabilities.

Abstract: A theft and vandalism resistant resilient surfacing system having resilient mats molded with recesses in their upper sides extending part way through the mats adjacent the edges and corners. Connector plates extend beneath the juxtaposed edges of adjacent mats and have posts extending upwardly through narrow openings in the bottom portions of the recesses. Means are provided for abutting on the upper sides of the bottom portions and retaining the upper ends of the posts. Preferably, the posts have stiffly resiliently deformable arrowhead formations on their upper ends which snap couple with the openings in the bottom portions.

Abstract: The sequential forming of a wood product from lumber including the steps of and a system for sawing the lumber into lengths, sawing the lengths into elongate units, applying glue to the units and overlying the units in groups of at least two units to each group with the glue therebetween, stacking the groups, banding the stack of groups to preclude movement between the units in the groups, and drying the banded groups and curing the glue between the units in the individual groups.

Abstract: A protective garment material is constructed with a matrix of cells with protrusions. These cells are linked with polygonal connecting plates, which have cuts at the corners to form a section of a complete frame for the protrusions. The linkage is formed with aligned semicylindrical flanges extended from the edges of the connecting plate and semicydrical grooves aligned in a different direction serving as sockets for the semicylindrical flanges from a neighboring connecting plate, so that any two neighboring plate can be rotated with respect to each other. The connecting plate also serves as a protective layer for the inner cell in the unprotruded area. The protrusions dirert any frontal thrust sidewise to prevent penetration.

Abstract: A portable rinse deck for farm chemical sprayers includes a center sump pit connected to radially extending sections sloped toward the sump pit for collecting spray chemicals washed from spray equipment on tractors, airplanes or helicopters. The radial sections include inner, middle and outer panels arranged to form right and left half sections. A radially extending channel receives the side flanges of adjacent panels with the radial channels feeding any chemicals leaking through the platform to the sump pit. A hub assembly is positioned over the sump pit and includes support channels which receive the inner ends of the radial channels for feeding the sump pit.

Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.

Abstract: A surface covering including a blend of a silane-grafted ethylene/vinyl acetate polymer and an ungrafted thermoplastic polymer retains the desirable balance between indentation, tensile strength and elongation of a fully grafted EVA while permitting the reprocessibility of scrap material. Preferably, the silane graft density is one graft per about 100 carbons to one graft per about 5,000 carbons. The preferred EVA has about 18% to about 28% vinyl acetate.

Abstract: A mat for stabilizing particulate materials includes a planar quadrilateral grid formed by a plurality of intersecting struts. A reinforcement zone strengthens each of the strut intersections. Upstanding cylindrical tubular members are disposed on the grid in a rectangular array such that the central longitudinal axis of each of the tubular members extends through a strut intersection. Longitudinal ribs are formed on an interior cylindrical sidewall of each of the tubular members and are disposed such that each of the ribs perpendicularly intersects a strut adjacent a bottom end of the tubular member. Sockets are spaced uniformly along two adjacent sides of the mat, with each socket secured between two of the tubular members by a pair of struts. Pins are spaced along the other two adjacent sides of the mat, opposite the sockets, with each pin also secured between two of the tubular members by a pair of struts.

Abstract: A tile structure and method for applying tiles to the floor surface of offices, corridors and various rooms in which the surface of a floor to be tiled is covered with a sheet and peripheral side of tiles to be applied are surrounded with an elastic joint material. The tiles are applied side by side in sequence on the sheet with the elastic joint material forming a joint between adjacent tiles and in a compressed condition so as to prevent such applied tiles from moving each other. The sheet prevents the tiles from sliding along the floor surface.

Abstract: Resilient tiles having substantially uniform impact attenuation over the entire surface thereof are disclosed. The tiles of the invention have a plurality of spaced, elongated peripheral ridges and a plurality of truncated, conical legs inboard of the peripheral ridges which combine to provide the substantially uniform impact attenuation of the tiles.

Abstract: A deformable slip-free, anti-skid pad comprising: a bottom surface having a plurality of spikes slightly extending vertically from recessed areas of the bottom surface; and a top surface comprising a resilient material having imbedded therein particles of abrasive materials.

Abstract: A lay-in ceiling panel structure, comprising a glass fiber ply, a gypsum board, and a highly perforated vinyl lamina. The ceiling panel structure having noise and sound transmission reduction coefficients in the range of 0.85 to 0.95 sabins and 0.35 to 0.39 dbs respectively. This structure also provides good fire resistance, space efficiency, and a lower surface that is washable and pleasing to the eye. In addition, the glass fiber ply is secured to the gypsum board by droplets of glue which are spaced 1 to 2 inches apart and which are applied 4 to 6 inches away from the outer periphery of the gypsum board. Applying the glue in this way allows the glass fiber ply and vinyl lamina to lay flat even if the board is warped by water leaks, humidity or age.

Abstract: An extruded slat defined by a series of longitudinal cavities disposed in a side-by-side relationship. Typically, the longitudinal cavities total in odd numbers so that fastening can be achieved through a single cavity. The slat is fabricated from plastic resin, is light in weight, is readily cut and can be arranged into a variety of configurations. Assembly between the ends of abutting slats is usually accomplished by an interconnecting pin(s) between communicating cavities. Each longitudinal cavity is also adapted to receive a rod, a cable, or the like, serving for example, reinforcing, communication and/or communication purposes, or other uses involving concealment and/or security.

Abstract: A tile includes: an outer layer having a decorative surface portion formed on an outermost surface of the outer layer made of rigid material such as rigid plastic material, an air-chamber layer formed on a bottom portion of the outer layer defining an air chamber in the bottom portion of the outer layer, a plurality of supporting stems protruding downwardly or inwardly from the outer layer to be distributed in the air chamber, and a substrate layer secured to each bottom surface of the supporting stem for sealing the air chamber and made of softer material such as soft plastic material to be coated on a floor surface, thereby providing a comfortable cushioning and thermal resistant tile as effected by the intermediate air-chamber layer and the substrate layer.

Abstract: A vinyl floor covering to accommodate wood subfloor contraction and expansion as well as rolling load incorporates a foamed plastisol encapsulated glass mat which may be cut to form pivot points and expanded under a controlled pre-stressed condition. The glass mat serves as a carrier during manufacture and an "elastic glass" reinforcing layer during use as either tension or loose-lay flooring. The floor covering may be a true hybrid surface covering which is capable of accommodating the dimensional change of a target subfloor by utilizing the characteristics of both tension floorings and loose-lay floorings.

Abstract: A utilitarian and/or decorative object and a method for forming the object fabricated mainly of a plastic material, such as polyester, having a metallic outer face which thereby imparts to this object the appearance and/or hand of a like object made entirely of metal. In this technique, a mixture of a liquid monomer, a curing agent therefor, a dispersion of metal particles and floatable particles are poured into a mold for forming the object. The metal particles are permitted to settle in the mold or the mold is centrifuged to cause the metal particles to migrate toward the outer or lower region of the piece and concentrate in this region before the monomer polymerizes and hardens to bind the particles.

Abstract: A floor structure having good resistance to the passage of water vapor and gases comprisesa supporting structural substrate,a water-based adhesive layer coated on the structural substrate,a synthetic resin-metal foil laminate sheet in contact with the adhesive layer,a layer of water-based mastic applied to the resin-metal foil laminate, anda finish floor layer in contact with the mastic layer, or intermediate supporting layer(s) adhered to the mastic layer, with a finish floor layer secured to the supporting layer.

Abstract: Disclosed is a structure of square floor tile, which is made of glass fiber mixed with heat setting resin, calcium carbonate and hardener through casting process, and comprises two pair of parallel ribs on the bottom and vertically intersected with each other. The parallel ribs have each two notches thereon, a dovetail mortise at one end and a dovetail tenon at an opposite end. By means of the engagement of the dovetail mortises of one floor tile with the dovetail tenons of another floor tile, floor tiles are automatically aligned with one another after they are connected together longitudinally and transversely.

Abstract: A tile product having a substantially non-porous vinyl composition base and a multilevel embossing and gloss which has a mechanically embossed mortar-line surround and which is free of gloss defects formed by pockets of air trapped between the wear layer and embossing mold during embossing is produced by applying a vacuum to the press during embossing. Preferably, the tile is laminated in a hot press heated by RF energy and cooled in a cold press to reduce the temperature of the wear layer to below its glass transition temperature.

Abstract: Linear and cyclic diorganopolysiloxanes containing benzotriazole functional groups are well suited for the coating of optical fibers and for lubricating plastics, e.g., PVC.

Abstract: A floor mark used for a sport game is painted on the outer layer of a mat unit. A pair of mat units to be laid adjacent to each other are fastened together by means of a slide fastener. This slide fastener has a pair of fastener tapes, and a slider to be fitted around the guide sections of the paired fastener tapes. The fastener tape has a length substantially equal to that of the mat unit, and is covered with the outer layer throughout. Each fastener tape has a non-tooth guide section and a non-adhesion section which is not adhered to the outer layer. The non-adhesion section extends from one end of the fastener tape, and is longer than the non-tooth guide section. A positioning mark, used for adjusting the positions of the floor marks painted on the mat units, is painted or written on the surface of the fastener tape, such that the positioning mark is within the range of the non-adhesion section.

Abstract: A vinyl tension floor covering includes a reinforcing layer, preferably disposed below the neutral bending plane. The floor covering elongates in at least one direction due to a controlled pre-stressed condition and tends to return to its original pre-elongated dimension. Reinforcing layers expand in the across machine direction as well as machine direction in response to a tensile stretching force in the machine direction or roll-up growth.

Abstract: A vinyl floor covering to accommodate wood subfloor contraction and expansion as well as rolling load incorporates a foamed plastisol encapsulated glass mat which may be cut to form pivot points and expanded under a controlled pre-stressed condition. The glass mat serves as a carrier during maufacture and an "elastic glass" reinforcing layer during use as either tension or loose-lay flooring. The floor covering may be a true hybrid surface covering which is capable of accommodating the dimensional change of a target subfloor by utilizing the characteristics of both tension floorings and loose-lay floorings.

Abstract: Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

Abstract: A warp resistant tile and method for preparation thereof in which a primary facing layer is secured to a tile backing layer which comprises a laminate having(A) a characterizing layer of predetermined weight, bulk, and strength, this layer and being complementary to the primary facing, and to(B) a thin flexible base layer.

Abstract: The method and material of the present inventioin includes a combination of a high-fusing temperature metal component and a low-fusing temperature metal component which are adapted to be heat treated at a temperature above the melting temperature of the low-fusing temperature metal component, such that a porous, sponge-like structure is formed with a total void volume of 20-80%.

Abstract: Reversible quadrangular mats of similar construction are provided, defining a grille section on one face and a flat section on the opposite face, and interlocking edgewise joints to edgewisely releasably interlock the mats in coplanar fashion. These joints include thicknesswise grooves made at the peripheral side edge sections of each mat, defining two upturned edgewise lips in two adjacent grooves and two downturned edgewise lips in the two other grooves. The mats are made from a semi-flexible material. One side lip of a first mat is frictionally engageable into one side groove of a second mat, for their interconnection.

Abstract: An artificial lawn section capable of interconnection with similar sections comprising a base member (1) having first and second pairs of adjacent sides, said first pair of adjacent sides having a plurality of connecting members (11) projecting outwardly therefrom, each connecting member having an upstanding projection member (111) formed thereon, the base member (1) having a plurality of throughbores (121,121'; 221,221') formed therein, said throughbores being of two different sizes and being arranged in rows wherein each row consists of bores of the same size, clusters of artificial grass (12,12') insertable from above into, and retainable in, said throughbores, wherein the row of throughbores adjacent the two sides forming the second pair of adjacent sides consists of the larger sized bores (121;211) which are each capable of receiving an upstanding projection member (111) formed on a second section (2) pushed upwardly thereinto and a plurality of projecting cushioning members (13;23) projecting from the u

Abstract: Thermoplastic articles such as fenders, of large cross-sectional dimensions, may be made by extrusion without shrinkage voids by extruding a first stream of theremoplastic as a hollow profile, and extruding a second stream of molten thermoplastic by a second extruder and forcing same under pressure into the hollow profile to till the voids of shrink-age on cooling.

Abstract: A non-warping and torque resistant structural panel including a top panel composed of four different size squares mounted on a base sheet. The squares when forming a pattern, have apices which are intermediate to and relatively offset from the apices of adjacent squares thereby forming relatively short vertically and horizontally extending intersecting lines, which resist warping and lateral torque.

Abstract: A modular tile for interlocking with other similar tiles to form a floor covering which provides enhanced traction at its playing surface and improved tolerance to sudden lateral movement. The tile comprises a plastic support grid having rectangular configuration bounded by a perimeter wall and including a repeating pattern of intersecting cross members with interstitial openings formed inbetween. A plurality of support legs are coupled to a base side of the cross junctions in general perpendicular orientation. Interlock structure is coupled to and extends outward from the perimeter wall to enable removable attachment with other modular tiles of similar design. The interlock structure provides a continuous, uniform displacement gap between adjacent perimeter walls which establishes a separation distance between the range of 0.5 to 2 millimeters, and also provides a yielding response to absorb lateral forces.

Abstract: The manufacturing process of producing a simulated tile lavatory top and grouting in a single piece product wherein there is a matrix which is formed from liquified material which is poured into a mold with forming ribs therein and the simulated tiles and grouting are produced upon hardening of the matrix.In addition, the invention relates to the end product of a single piece top which includes a top surface grouting paths with simulated tiles therebetween.

Abstract: A tile for flooring or wall cladding has a relatively thin stone layer 11 bonded to a substrate made up from three sub-layers 13A, 13B and 13C each of substantially the same shape and size as the stone layer 11. The sub-layer 13A adjacent the stone layer 11 is aligned with the latter, the intermediate sub-layer 13B is displaced in two directions to define two projecting tongues 16,17 from two edges, and two grooves on the opposed edges. The outer sub-layer 13C is displaced in one direction to define a projecting tab 22 provided with fixing holes 23. The aligned sub-layer 13A may be omitted, if not required.The tiles may be much thinner, and hence much lighter, than conventional stone slabs for flooring or wall cladding, on account of the strength imparted by the substrate. The tiles allow for invisible fixing, with the projecting tongues interlocking in the grooves of the adjacent tiles.

Abstract: A curable sheet comprising first and second curing reactants arranged in discrete areas of the sheet, preferably by coextrusion, in patterns such as stripes and checks. The sheet cures upon fusion of the respective areas of the curing reactants.

Abstract: Porous materials having a dual surface are disclosed. Also disclosed is a method for their preparation. An example of such a material is a silica gel reacted with a reactive silane intermediate such as (CH.sub.3).sub.2 Si.dbd.O and then, with a reactive silane such as ##STR1## to give a dual treated material having --((CH.sub.3).sub.2 SiO).sub.x H on the exterior surface and ##STR2## on the interior surface of the pores.

Abstract: Cryogenic foam insulation 20 is adhesively bonded to the outer wall of the fuel tank structure 10. The cryogenic insulation 20 includes square sheets 12 fabricated from an array of abutting blocks 14. Each block 14 includes a sheet of glass cloth 18 adhesively bonded between two layers of polymethacrylimide foam 16. Each block is wrapped in a vapor impermeable membrane 24, such as a polyimide-aluminum-polyimide composite laminate, to provide a vapor barrier. Very beneficial results are obtained by employing the present invention in conjunction with fibrous insulation 28 and an outer aeroshell 30, which is a hot fuselage structure having an internal thermal protection system.

Abstract: A tile of synthetic material which simulates a hard surface is provided. The tile includes tapered peripheral edges which define rounded upper edges of the tile. The tile includes a core part which has two layers of substantially-inextensible, flexible, synthetic material between which is interposed an intermediate separating layer. A facing sheet simulating a hard surface tile is provided on the upper face of the tile. The facing sheet is applied to the core part and has rounded marginal portions which extend to cover marginal portions of the core part and define the rounded upper edges of the tile. The marginal portions of the facing sheet cover less than the total thickness of the core part.

Abstract: The waterstop used to prevent passage or leakage of water through a construction joint of concrete is shaped of a plastic or rubber in the form of a continuous-length belt-like form and provided with a water-swellable rubbery layer on at least a portion, or, for example, along the peripheries of the belt-like form, side-by-side coming into contact with the concrete bodies to serve as a water-tight filling of the joint by being swollen with water. The water-swellable rubbery layer is protected temporarily prior to use with a coating film of an alkali-soluble polymeric material which can at least partially be dissolved away by the alkalinity of the water in the concrete joint. The peripheries of the plastic- or rubber-made belt-like form are preferably in a length-wise bulged form having a bore running therethrough to serve as a stress absorber when the water-swellable rubbery layer is swollen with water.

Abstract: A wooden tile which is preferably used for floor covering is formed by a number of individual members which are bonded together. The wooden tile is made by knife cutting a sheet of wood from a substantially stressless piece of timber and then cutting the individual members from the wooden sheet. Adhesive such as ureaformaldehyde is applied to the edges of the members to bond them together. Alternatively, the individual members are adhesively bonded onto a mesh and some adhesive seeps between the edges of the members. The tile so formed is flexible, durable and economic to manufacture.

Abstract: The present invention discloses a ceramic reusable externally applied thermal protection system (TPS). The system functions by using the composite device created by combining an upper shell, thermal insulation and lower tile components shown in FIG. 2. The upper shell effectively separates its primary functions as a toughened outer-surface and load carrier. In a preferred embodiment, a structurally strong ceramic/ceramic upper shell is manufactured from ceramic cloth upon which additional ceramic material has been deposited and maintains the configuration of the upper shell. The lower tile is composed of lightweight ceramic normally acceptable in this application. One or more lightweight rigid or flexible insulation materials are used in the cavity created by combining the upper shell and lower tile. The assembly of the overall tile is facilitated by attachment means effective to withstand the temperature and stress conditions.

Abstract: An array of gravity-held-in-place-load-bearing-horizontal-modular-accessible-tiles with flexible joints between adjacent modular-accessible-tiles in which the flexible joints are cuttable and reassembleable to provide accessibility to flat conductor cable disposed above or below one or more horizontal-disassociation-cushioning-layers which require flexible joints between adjacent modular-accessible-tiles to be dynamic-interactive-fluidtight-flexible-joints to assemble the modular-accessible-tiles by gravity, friction, and accumulated-interactive-assemblage into a floating finished floor array without adherence to the horizontal-base-surface, wherein the horizontal-disassociation-cushioning-layer provides accommodation to the thickness variations cause by termination and crossing over of layers of flat conductor cables and the horizontal-disassociation-cushioning-layer also provides improved impact sound isolation.

Abstract: A thermally protective covering for a structure includes a thermally ablating layer comprising a nonporous ablative material comprising pyrolytic graphite or carbon composites bonded to a rigid, nonporous insulating layer comprising composites having high strength fibers in an insulating matrix. The insulating layer is bonded to the casing of the structural element to be protected. More preferably, the thermally ablating layer comprises pyrolytic graphite and the rigid, nonporous insulating member comprises silica phenolic. The ablating layer is bonded to the insulating layer with a high temperature graphite cement having adhesive properties to at least 3000.degree. K. In a preferred embodiment, means are provided for venting pyrolysis gas produced during exposure of the ablating layer to a high energy laser.

Abstract: A gravity-held-in-place-load-bearing-horizontal-tile-array over a horizontal-base-surface, typically a floor, which comprises an array of rigid tiles set on a horizontal-base-surface. The rigid tiles have edges positioned adjacent to the edges of adjoining tiles in the array, with the array of rigid tiles being separated from the horizontal-base-surface by at least a 1/8 inch thickness of horizontal-disassociation-cushing-layer. The tiles are adhesively joined at their edges to adjacent edges of adjoining tiles with an elastomeric sealant with adhesive properties.

Abstract: The present invention relates to laminated acoustical tile products which are derived from compositions that are suitable to provide rigid, water-resistant phosphate ceramic materials. The tile products comprise a decorative facing comprising a substantially open-celled character and a backing layer of higher density, the backing layer and edges of the tile comprising substantially closed-celled facing characteristics. The backing layer provides structural strength and dimensional stability to the tile product whereas the decorative, open-celled facing provides access by sound waves to the interior regions of the board. The resulting composite material provides good acoustical performance, yet is capable of withstanding conventional handling stresses.

Abstract: A grass protecting walkway having a substantially flat elongated grid-like structure which defines a plurality of polygonal apertures is disclosed. The grid allocates its bottom and top planar surface areas approximately equally between the surface area of the apertures and the surface area of structured cross members.

Abstract: A non-slip floor mat assembly made from a plurality of rectangular shaped floor mat panels which are coupled together provide a mat with a number of improved safety features including non-slip, not dangerous to high heels and good drainage. Each of the floor mat panels is integrally molded with a plurality of parallel extending first elongate members on one portion of each of the floor mat panels, and a plurality of parallel extending second elongate members on another portion of each of the floor mat panels. The first elongate members extend in a different direction to the second elongate members and openings are provided between the elongate members. Parallel ridges with breaks between are provided extending in line along the elongate members to provide a tread surface, and cross members extend across and support the first and second elongate members positioned below the tread surface.

Abstract: By means of the coupling members and corresponding supporting feet of adjacent elements a coupling between an arbitrary number of elements of the floor covering assembly is possible. In order to prevent the separation of the engaged respective pairs supporting feet-coupling members in a positive manner locking cams having upwards facing abutment surfaces lock behind side sections of respective adjacent elements.

Abstract: A layer of a liquid composition containing (A) a compound containing at least one heat-polymerizable, ethylenically-unsaturated group, (B) a photopolymerizable material, and (C) a thermally-activated free radical initiator for polymerization of (A), is heated to solidify the layer, and subsequently it is exposed to actinic radiation in a predetermined pattern and those parts of the layer that have not become photopolymerized are removed by treatment with a suitable solvent.An example of an unsaturated, heat polymerizable compound (A) is butanediol dimethacrylate. An example of a photopolymerizable material (B) is an epoxidized novolak of 2,2-bis(4-hydroxyphenyl)propane with triphenylsulfonium hexafluorophosphate. A typical thermally-activated, free radical initiator (C) is cumene hydroperoxide.The process is suitable for the manufacture of printing plates and printed circuits.