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 threshold mat comprising alternating scraper units and wiper units. The improvement is that the wipers, that is strips of carpeting are carried on extrusion carriers and are gripped by their edges via a tightenable clamp incorporated in the scraper unit. The feature of tightening enables different thicknesses of carpet material to be accommodated.

Abstract: A flexible article of manufacture especially suitable for use as a ballistic resistant body armor which comprises one or more composite layers, at least one of said composite layers comprising a base layer having a plurality of planar bodies positioned between two sandwiching flexible layers out of contact with each other and a plurality of planar bodies positioned on a surface of said base layer out of contact with each other and in disalignment with the sandwiched planar bodies.

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 floor mat (10) is provided which includes longitudinal rail sections (e.g., 16, 17) capable of being interconnected with other longitudinal rails to form a roll up floor mat or pedestrian walking surface. The rails include a plastic cushion layer (21) which can be coextruded onto the upwardly facing surface of an underlying rigid plastic rail core (8), with the cushion layer being softer than the rail core and forming an integral walking surface thereon. At least one living hinge (23) may be employed within the rail section for pivotal movement of the rail, allowing the floor mat to be rolled up.

Abstract: A surgical floor mat having a plurality of compressed sponge sections with a low profile in a dry condition and a expanded profile in a wet condition for absorbing fluids which fall onto the sponge sections over the course of a surgical procedure. Furthermore, the compressed sponge sections are adhered to a waterproof and foldable sheet with a gap between each of the sponge sections to allow the foldable sheet and sponge sections to be easily folded for purposes of storage or later disposal. The waterproof and foldable sheet has a non-slip undersurface for secure engagement between the operating room floor and the surgical floor mat. Additionally, an adhesive strip can be used and affixed to the undersurface of the foldable sheet for greater securement to the floor and a number of different configurations for the surgical floor mat can be used.

Abstract: A foot mat comprises a multiplicity of elongated rail members formed by coextrusion of a substantially rigid polymeric material and a compressible polymeric material. Each rail member has a rigid tread-supporting web portion, at least two rigid leg portions, which are adapted to support the tread-supporting web portion stably on a surface, a cushion portion of the compressible material on the bottom of each leg portion, and a pair of rigid bulbous coupling portions of the substantially rigid material, one on each side of the tread-supporting web portion. Each coupling portion is substantially longitudinally coextensive with the tread-supporting web portion and extends generally laterally outwardly from the tread-supporting web portion. A tread member is received on the top of the tread-supporting web portion of the rail member.

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 hinged flexible article is provided which has rigid or semirigid substrate means with an insert of a hinge material which permits repeated flexing of the article about the hinge without failure. The substrate means has a hardness of at least about 35 Shore D as measured by ASTM test D-2240, while the hinge material has a hardness of from about 25 to about 60 Shore D as measured by ASTM test D-2240.

Abstract: A graphite body which is capable of connecting a plurality of the graphite bodies one by one. The graphite body includes one connecting end surface having a T-shaped mound and the other connecting end surface having an inverted T-shaped groove so that the graphite bodies may be connected by means of the mound and groove. The mound and groove each have a width linearly varied in the longitudinal direction thereof.

Abstract: An integrally molded plastic structural unit includes spaced support members joined by a web section disposed therebetween, each of the support members including spaced face sections and an intermediate section therebetween. Each face section includes a stressed hard outer skin. The intermediate section includes a peripheral frame section of high density. The web section includes high density connector members extending between adjoining face sections of the spaced support members. Each of the support members includes mateable sections along at least two edges thereof, with each of the mateable sections including at least five alternating raised and recessed areas forming an asymmetrical pattern along the length of each mateable section. The pattern is the same or a reverse pattern thereof along each mateable section of the same unit and of adjacent units with which it will be assembled.

Abstract: A clip is disclosed for securing a mat to a carpet wherein the clip has a main portion joined to a spike. The spike is inserted into and underlies the carpet such that the main portion is exposed. One-half of a loop and hook type fastener is secured to the exposed side of the main portion of the clip and the corresponding second half of the fastener is secured to the second surface of the mat to permit the mat to be secured to the main portion of the clip.

Abstract: For sealing the ridge cover of a pitched roof there is used a sealing strip (10) comprising a center strip (11) with an air-permeable, water-repellent and drifting snow-tight non-woven material (12) including side strips (20, 30) contiguous therewith, at least the outer longitudinal edges of said side strips being adaptable to the top surfaces of roofing tiles (2'). Each side strip comprises soft, extensible polyisobutylene sheet strips having an expanded metal embedded therein which exhibits a longitudinal extensibility of 50 to 150% and a transverse extensibility of >20% and a recovery of >5%.

Abstract: A flexible device is an elongated member of desired form and is makable by separating the tread from the remainder of a used rubber tire and cutting the tread to the desired form. The device has a hole of predetermined dimensions therethrough and a barbed portion spaced from the hole and adapted for one-way entry in either direction through a hole of the predetermined dimensions and into interlocking engagement therewith. The device preferably has two (2) identical barbed portions, and (1) at each end, and symmetrical with respect to a longitudinal centerline, and there is a plurality of the holes through the device. The holes are circular and at least some of them are on the centerline. An article can be fabricated from a plurality of flexible devices with a barbed portion of one in interlocking engagement with a hole in another, or the article can have a barbed portion of one device engaging one of its own holes, or with a combination of such interengagements.

Abstract: The door mat comprises a plurality of section lengths each of which is provided with a male coupling element and a female coupling element, each female element being suitable for coupling to the male element of an adjoining section length, the section lengths being moreover provided, at their central portions, with respective seats, open at the tops, therein a bristle element can be engaged.

Abstract: A floor mat is disclosed which provides a flexible, resilient, cushioned, tread surface and substantial foreign matter collection area. The preferred floor mat includes a plurality of elongated, flexible, resilient, spaced-apart, intercoupled rails. Each preferred rail includes a plurality of elongated, upstanding, spaced-apart cleaning structures extending upwardly from the rail top surface with a transverse wall between adjacent cleaning structures which together cooperatively define respective collection troughs. Each transverse wall includes a plurality of foreign matter removal openings and each rail includes a plurality of elongated, longitudinally disposed passageways extending substantially along the length of each rail and positioned respectively beneath a corresponding cleaning structure for cushioning impact on the cleaning structures.

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: Filling material for percolating filters for the treatment of liquid and process for producing and assembling the material. Especially in biological sewage treatment, filling material must provide the best possible hold for the biological filter film necessary for the purpose and must have uniform wettability. The disadvantage of known apparatuses meeting these requirements is that they either tend to clog or are difficult to produce. The new filling material will work effectively and reliably, while being simple to produce and assemble. To provide ideal growth surfaces for the biological filter film, the filling material has a plurality of plastic strips (20) which are connected to one another by means of a single holding sheet (21). Furthermore, the strips (20) have a special shape, in particular corrugated edges and/or a structured neutral region. The filling material is especially suitable for biological treatment, particularly the denitrification of sewage or drinking water.

Abstract: A net comprising a plurality of rings grooved on both sides and interconnected by "V" shaped flexible connectors, locked in to form an "O" shaped connection by a ratchet latch mechanism. The net is stretched to any desired construction and can be used for children playgrounds, or for naval security systems.

Abstract: An insulated molded plastic structural unit includes spaced face portions, an intermediate portion and interlocking portions. The face portions each include an integrally formed stressed hard outer skin section and the intermediate portion includes an insulating core section. The interlocking portions include mateable sections along at least two edges of each unit, each mateable section including at least five alternating raised and recessed areas forming an asymmetrical pattern along the length thereof. The pattern is the same or a reverse thereof along each mateable section of the same unit and of adjacent units to which it will be joined. Particular mateable sections either extend beyond the face portions or are recessed below the face portions a substantially equal distance. Continuous molding apparatus includes a raw material supplying portion, a mixing portion, a molding portion and a control portion.

Abstract: Building or construction related components such as floor tiles, ceiling tiles, trim moldings, corner guards, sound proofing or insulating panels, dock bumpers and the like are formed by blow molding a hollow parison to the desired exterior shape, such that the parison becomes the exterior surface of the desired article, and thereafter blowing a plastic foam composition into the interior of the parison. Integrally formed male and female connectors for sliding, or snap-fit engagement are provided to attach moldings and other components in end-to-end relationship with each other, or to wall surfaces and the like. In an alternative embodiment, coextrusion is employed to form the various construction related components.

Abstract: A covering for a mechanical linkage comprises a material which is substantially impermeable to both liquid and particle contaminants and conforms to the outer surface of the mechanical linkage. Because the covering conforms to the surface of the mechanical linkage, the covering does not have loose portions that billow and rub together as the mechanical linkage operates. This lessens the possibility of pieces of the covering and contaminating material detaching and falling from the mechanical linkage. The covering also comprises access openings whereby the mechanical linkage can be serviced without removing the entire covering. In a preferred embodiment, the covering comprises a plurality of sections, each section having fasteners for securing the sections about the mechanical linkage. The separate sections can be individually removed and replaced in a relatively short period of time.

Abstract: Artificial athletic turf has a simulated grass surface provided by tufting strips into a backing fabric. The tufts are held in place by a precoat of polyurethane, and a reinforcing sheet is embedded within the precoat to provide tear resistance. A foamed polyurethane is placed on the precoat, and one or more reinforcing sheets are also embedded within or placed on the foamed polyurethane. The strips are hydrophobic plastic with strength to prevent damage, and the coatings are polyurethane reinforced for tear resistance, which also yields a resilience as needed for an athletic mat. One or more of the fibrous sheets may be needle felt to provide some of the needed resilience. The turf is cut along lines parallel and perpendicular to the tufting lines to provide tiles, and the tiles are assembled to form the desired turf.

Abstract: This invention relates to insert strips for a floor covering structure for public walking areas such as in foyers of commercial buildings. The floor structure is made up of connected longitudinal sections, each section having a central longitudinal channel, a raised removable strip being disposed into each channel, to provide a walking surface and the strip having a relatively friction free underlying surface for an easy insertion into a channel and the same being arranged to be retained in the channel.

Abstract: Assemblies of sheets of corrugated plastic board and molded plastic interlock elements providing useful products such as containers. Sheets of corrugated plastic board are interlocked with one another by means of molded plastic connector pieces or strips having receptor slots containing spaced lock ramps. The slots receive a uniform edge of a sheet of corrugated plastic which is provided with spaced slits aligned with the spaced lock ramps. Entry of the sheet edge into the connector slot causes the spaced lock ramps to compress the edge until the aligned slits pass thereover, and the "memory" of the corrugated plastic board causes the edge portion thereof, beyond the slit, to spring back to its original thickness and thereby lock the edge of the plastic board within the slot of the molded plastic connector.

Abstract: An articulated floor mat structure is disclosed, in which a series of rigid, slat-like elements are hinged together and locked to prevent lateral movement, to form a mat structure that can be rolled up. The individual structural elements are shaped to provide for slide-in or snap-in assembly of tread strips, along their upper surfaces, and pad strips, along their lower surfaces. Edge strips are secured along the side edges of the mat assembly in an advantageous manner, to retain the tread strips and pad strips in assembled positions. An arrangement of integral loop tabs on the edge strips and integral hook tabs on the structural members greatly expedites the assembly process and correspondingly reduces the cost of manufacture, without compromising performance.

Abstract: A raised panel-style door and method of making same are described. The structure includes a solid core having a planar veneer support surface regularly interrupted by channels extending in a rectangular course. The channels are inlaid with picture frames formed of decorative wood strips having marginal edges in the plane of the veneer support surface and being recessed therebetween. When overlaid with veneer, surface regions outside the picture frames are made to look like stiles and rails, while those inside are made to look like panels. The door may also have an internal fire-retardant layer.

Abstract: A raised panel door having a core panel extending within it and panel inserts lodged within the voids of a lattice structure presented on opposite sides of the door. Molding strips overlay and conceal regions where the inserts abut against expanses in the lattice structure defining the voids. A veneer overlay covers margins of the molding strips.

Abstract: Interlocking landscaping planking wherein the opposite edges of each interlocking plank has a tongue and groove of special shape and relative dimensions to permit maximum flexibility in assembling curved landscaping arrangements consisting of multiple numbers of the planks joined side by side. The novel trapezoid or circular shaped tongue is centered vertically is one edge of each interlocking plank, its base indented slightly from the front and back surfaces of the plank to permit and to limit the lateral movement of the plank. The exterior surfaces of the tongue slope or curve inwardly, tapering to a flat apex. The novel trapezoid or circular shaped groove complements the novel trapezoid or circular shaped tongue, but spaced slightly therefrom and is centered vertically in the opposite edge of the plank, its mouth indented slightly from the front and back surfaces of the plank to permit and to limit the lateral movement of the plank.

Abstract: A connecting structure for sections of floor coverings such as of floor covering use in public walking areas, the connecting structure having longitudinal transversely spaced upstanding T members adapted to be retained in accomodating side vertical openings of the adjacent edge portions of floor covering sections for connection of the sections and being sufficiently flexible to bend along a longitudinal axis for a roll up of adjacent sections.

Abstract: A structural element for more rapidly erecting a tiled stove comprises a quadrangular tile and a quadrangular separate element associated to this tile. The tile has a tile leaf, at the inner side of which a tile body is disposed being unitary with the tile leaf. Two adjacent tiles confine a vertical groove, preferably having a dove-tail cross section, which groove is completely filled by a protrusion of the separate element, which protrusion protrudes from the outer side of a plate of the separate element which plate covers substantially the half of the inner surface of two adjacent tiles each.

Abstract: An article of furniture comprises a plurality of plastic sections each curved at its opposite ends according to the same radius of curvature, with each section having notches at its opposite ends of a length twice that of the radius of curvature. Fastener means are receivable in the notches of adjacent sections and couple the sections together. Several embodiments are described having different fastener means, including one arrangement wherein they are separate pin and link members, a second arrangement wherein they are pins inserted into sockets integrally formed with the plastic sections, and two further arrangements wherein they are pins integrally formed with the plastic sections and receive separate link members.

Abstract: A retainer for releasable attachment of an insertable bar, strip, or the like to a support comprises a supporting channel mountable on the support, engageable in the supporting channel a retaining rail, in which the insertable bar, strip, or the like is detachably secured, and a first means for releasable attachment of the retaining rail to the supporting channel provided in the supporting channel. The retaining rail has two longitudinal flanges whose free edges have directed inwardly a plurality of protruding members with which the insertable bar, strip, or the like is held in the retaining rail.

Abstract: A thermoformed sheet 1 for a plate-type gas-gas heat exchanger of the type comprising a case in which are stacked parallel plates spaced from each other by lateral spacing means, these plates having at their ends pointed regions provided with elements for alternately closing one of the two sides of the point, the case further comprising walls connected in a fluidtight manner to the pointed portions of the ends of the plates so as to form distinct inlet and outlet conduits for the gases which circulate in a countercurrent manner in the alternating spaces formed by the plates, this sheet being characterized in that it comprises a series of identical rows of elongated patterns 2a, 2b, 2c, 2d having edge portions folded on one side or the other of the sheet, each pattern comprising two parallel longitudinal edge portions 3a, 4a; 3b, 4b; 3c, 4c, 3d, 4d by which it is connected to the adjacent patterns so as to form a row and terminating in two pointed end portions 8a, 9a; 8b, 9b; 8c; 9c; 8d, 9d by which the patter

Abstract: A grid designed for use as a runner or a doormat comprises a multiplicity of parallel profiled bars, preferably of plastic, having a generally U-shaped cross-section with two upstanding flanges interconnected at their lower ends by a horizontal web. In certain embodiments each flange has an inverted-Y profile with one arm joined to the web and the other arm diverging therefrom, the two arms defining between them an undercut, downwardly open longitudinal groove which in the case of at least one flange has a cross-section in the shape of an upwardly pointed arrowhead facilitating the introduction, from below, of a substantially complementarily shaped upstanding rib of a connecting member of much shallower U-profile linking a pair of adjoining bars to each other. The underside of the connecting member is either flush with that of the bars or at a slightly lower level.

Abstract: The present invention entails a laminated timber structure comprised of a plurality of elongated laminated timbers laminated together in side-by-side relationship to form an elongated timber structure. The cross sectional area of the respective elongated timbers are of a generally uniform shape and size, with the cross sectional area being preferably square such as one-half inch by one-half inch. This enables standard size laminated timbers such as two by four, two by six, four by four, to be formed. In forming the laminated timber structure of the present invention, the respective elongated timbers are disposed in side-by-side relationship and glued along the sides of the timber as well as across the ends, giving rise to both edge and face joints.

Abstract: A light-weight, high-strength contourable core for inclusion in a contoured structural laminate in which the core is sandwiched between facing skins. The core is constituted by a planar array of block-like modules preferably made of end-grain balsa wood held together in edge-to-edge relation by a scrim formed by elastomeric filaments which extend through the body of the modules in an intermediate plane parallel to the opposing faces of the core. When the planar core is pressed against a wet-coated contoured skin surface for lamination thereto, the filaments bridging adjacent modules elongate to an extent permitting these modules to separate and conform to this surface. The filaments have an elastic recovery force low enough to prevent the modules from overcoming the surface tension created by the wet-coated surface and pulling away therefrom. However, the holding power of the filaments is sufficient to preclude disassembly of the core modules during normal core handling procedures.

Abstract: A metal mesh network, such as chain-mail, used for handbags, tapestries, vase mats, rugs, vests, etc. including unit piece members formed with pawls and joint ring members which are coated, before being formed, with a thermosetting acrylic resin paint, selected from epoxy type, ulethan type, and thermosetting acrylic type resin paints, over the entire surfaces. An assembling fixture for assembling the metal mesh network is a board formed on its surface with a plurality of square dents and posts. The unit piece members are placed in the dents of the fixture with the pawls up, and the joint ring members are put on the pawls. When the pawls are bent, the unit piece members are linked by the ring members to form chain-mail. With the unit piece members of different colors, ring members and the assembling fixture, one can readily form chain-mail of any size with any pattern on it.

Abstract: The present invention provides a material for accident protecting clothes in which tile-like small plate pieces made of nylon series resin are connected and formed, beneath a layer of bulletproof fiber sheets stacked in number as required, into a flexible plate-like configuration by connectors, soft rubber is placed beneath the flexible plate, a few sheets of bulletproof fiber sheets are attached beneath the soft rubber, and the whole structure is integrally coated with a water-resisting synthetic resin sheet.

Abstract: A glass fiber board product exhibits substantially improved compressive strength and is formed from a laminar mat of glass fiber containing a bonding substance. The mat is processed to rearrange the laminations of the mat so that at least a major portion extends across the thickness of the mat and the mat is then heat-cured and cut perpendicular to the major surfaces of the mat to form strips having opposite longitudinal cut faces. The strips are adhered together in side-by-side relationship to form boards with the cut faces forming opposite major surfaces of the boards. A backing sheet may be adhered to one or both sides of the board. Alternatively, boards cut from the cured mat are adhered together in stacks, which are then cut perpendicular to the boards.

Abstract: A light-weight contourable core of high strength for inclusion in boat hulls in which the core is sandwiched between facing sheets of resin-reinforced fiberglass. The core is formed by a planar array of block-like modules made of end-grain balsa wood or other material having acceptable properties whose adjacent edges are held together by flexible adhesive joints that have a short elastic limit, such that when the planar core is pressed against a contoured surface for lamination thereto, the resultant stresses cause the joints to stretch beyond their elastic limit to an extent necessary to permit the modules to conform to this surface. There is no spring back when the pressure is released, and the modules, therefore, maintain their conformed positions.

Abstract: A large water and air impervious textile panel suitable for use as a pond liner, tarpaulin, or the like, is constructed from a plurality of smaller panels. Each small panel comprises a weft inserted warp knit fabric having reinforcing substrate strips disposed at the selvedge edges thereof, and the strips spaced from each other along the width of the fabric. The small panels are chemically finished by first applying an adhesive system such as an isocyanate, and then a thermoset or thermoplastic polymer coating. The selvedge edges are prepared for attachment to each other by buffing and then applying an adhesive cement. The buffing does not extend along the width of each small panel any further than the width of the selvedge reinforcing substrate strip. Adjacent selvedge edges of the small panels are overlapped, and then attached to each other with the cement adhesive. Alternatively the overlapped small panel edges may be ultrasonically or thermally bonded to each other.

Abstract: A non-woven fabric is manufactured which utilizes as a primary component material the fringed selvage band resulting as a by-product in the manufacture of certain woven fabrics. Strips of selvage band are laid down on a non-woven backing or web in various configurations, depending upon the ultimate appearance that is desired. The selvage strips are then secured to the backing by punching with an array of forked needles, each of which forces a loop of yarn from the selvage through a hole in the backing.

Abstract: A flat link band of wire coils, a wire coil for the production of such a link band, and the process for the production of such a wire coil, where the wire coils are fabricated from an elastic material such as plastic. Each turn of the wire coil includes a head part and a foot part, which are substantially identical to each other, being formed in each case as a reverse loop. On one side of the wire coil, each head and foot part extends over with a first shank section in a substantially straight line into a corresponding first shank section of a connecting turn. On the opposite side of the wire coil, each head and foot part extends over with a substantially straight second shank section. The second shank sections are connected together by a central winding section running substantially in the same direction as the coil axis. The winding sections substantially determine the pitch of the wire coil.

Abstract: In a protective mitten made of a metal ring fabric, at least one portion of the fabric is embedded in an elastomeric anti-skid material so that a firmer grip can be exerted with the mitten.

Abstract: The invention relates to a flexible two-dimensional material, as well as to a method and an apparatus for the production thereof.

Abstract: The process for the gluing together of free form wood shapes in which individually pre-cut pieces are drawn into position, and correct, even, gluing pressure is applied by tension taken on a cable which has been routed internally through passages pre-drilled in component members of the finished shape and then connected at each end to take-up mechanisms which rest against the surface of the finished product.

Abstract: Wood blocks cut from lumber mill endpieces are adhesively secured to a backing sheet with strips of contrasting material interposed between the blocks.

Abstract: Two members 2, each located in a heat sealable sheath 4, are joined together to form a right-angle joint. Two plates 8 of heat sealable material are attached to the associated ends 6 of the members 2 by means of dowels 10 inserted into holes 12 in the member ends. The outer surface 14 of each plate 8 is flush with its associated sheath end 4. The mounted plates 8 are hot-plate welded and then pressed together with the ends of the sheaths 4 to form the joint. The plates 8 provide additional strength to the joint.

Abstract: The present invention relates to a kinetic waveform that is adapted to be vertically oriented and anchored. As so oriented, the kinetic waveform device comprises a plurality of generally uniformly sized and shaped slats suspended and secured along two vertical axis threads that are in turn anchored between two vertically spaced apart points. Once vertically oriented and anchored, the waveform will generally revolve about a vertical axis with the individual slats slowly and generally progressively revolving about the same general vertical axis. Thus the plane of the slats tends to twist, ripple, and to continue to change shapes in a wave-like manner about the vertical axis thereby imparting an art like character to the waveform that is particularly beneficial in providing visual stimulation and intellectual entertainment.