Abstract: A plastic leaching unit for receiving water when buried in trenches in soil comprises a plurality of pillars interconnected by struts. A canopy made of sheet material is attached to the tops of the pillars. The pillars are arranged as spaced apart integral assemblies to enable lateral and vertical bending of the leaching unit, for conforming to a not-straight trench. Preferably, the canopy comprises a second perforated sheet overlying a first sheet having larger perforations, the combination arranged for flow of water and gases while hindering soil particulates. Preferably, the canopy extends a greater amount from the first end of each unit than from the second end, to facilitate end-to-end mating of the units. Leaching units may be stacked one upon the other within a trench.

Abstract: A multifunctional synthetic resin block for roads. The synthetic resin block includes a water permeable sheet configured as a synthetic resin block having a flat sheet shape so as to be laid on a ground, a block frame configured as a synthetic resin body taking a form of a rectangular frame, which is divided into multiple rectangular areas each having open top and bottom sides, so as to be installed on the upper surface of the water permeable sheet, the rectangular areas being filled with filler stones, and multiple corrugated plates each configured as a synthetic resin having a rectangular plate shape and arranged so that corrugations thereof are oriented perpendicular to each other so as to cover the rectangular areas of the block frame. The synthetic resin block provides almost all functions, such as a rainwater retention function, water permeation function, and anti-slippage function, at low cost.

Abstract: A method for waterproofing a substrate, the method including adhering an adhesive member obtained by using an active hydrogen-containing synthetic resin, to a urethane-based waterproof layer to laminate a pavement adhesive layer; applying or spraying an isocyanate group-containing compound onto the pavement adhesive layer; and paving an asphalt mixture on the surface of the pavement adhesive layer.

Abstract: A tile for an interlocking rubber mat includes a tile body having an upper surface, a lower surface, and a rectangular peripheral edge. The upper surface is imprinted with a repeating paving stone pattern of a square adjacent an octagon. Each square has four sides of equal length, and each octagon has every second side equal to the sides of the square. A series of projections extend beyond at least one side of the peripheral edge, the space between the projections being adapted to receive the projections of an adjacent tile. Each projection includes a projecting square and a projecting octagon, wherein the projecting square of each projection is adjacent a peripheral octagon of the at least one side of the peripheral edge and the projecting octagon is adjacent a remote side of the projecting square opposite the peripheral octagon. Each peripheral octagon on the at least one side having an associated projection.

Abstract: A composite membrane comprising a layer of rubberized asphalt having a heavy duty plastic film layer continuously bonded to one side and, optionally, a layer of nonwoven geotextile continuously bonded to the other side. The membrane can be used in vertical or horizontal applications, and is particularly useful for its stress-relief properties that resist crack formation and propagation in concrete walls and slabs in addition to serving as a barrier to moisture, toxic substances and insects. An appropriate composite membrane of the invention can be advantageously utilized in positive side, blindside, underslab or split slab applications. The thickness of the composite membrane preferably ranges from about 30 mils to about 150 mils.

Abstract: A paver system comprising a plurality of paver pieces and at least one substrate. Each of the paver pieces has a top surface and a bottom surface. The bottom surface of the paver pieces is configured for mating with the upper surface of the substrate, whereby paver pieces coupled to the substrate are prevented from moving laterally.

Abstract: The vibration damping system, especially for use in the damping of vibrations e.g. from trains, tramcars, other traffic and damping of ground borne vibrations in general, comprises an anti-vibration plate in the form of a plate having a first and a second major surface. The anti-vibration plate comprises mineral fibers, a non-foamed polymeric material and/or a polymeric foam. The anti-vibration plate can further be provided with one or more hollow spaces, i.e. cavities. The anti-vibration plate is obtainable by a method comprising the step of subjecting an area of the opposite surface of the plate to a compression treatment in one or more steps, which compression treatment is sufficient to reduce the static and/or dynamic stiffness of the plate.

Abstract: A tile molded of thermoset plastic is provided with structure to retain the tiles in their desired position when subjected to repeated freeze-thaw cycles. The tiles are provided with an array of anchors that extend outwardly from the substrate facing surface of the tile. The anchors have a stretching portion which will allow for some movement imposed by freezing and thawing conditions and will return to its desired position during warmer conditions. The anchors have substrate engaging portions at their distal ends.

Abstract: A non-slip, water resistant, oil resistant surface structure for use where water and/or oil are likely to create a slippery surface, including a rubber-bottom mat upon which a thrice coated, non-slip surfaced substrate is fastened, the coating on the substrate including crushed walnuts, or the equivalent, to provide for a non-slip surface and the coating comprising a thermosetting epoxy resin material with an amine hardener.

Abstract: A modular platform floor system for advantageous use at trade shows and conventions includes a plurality of interconnectable floor modules, wherein each module includes a supporting rectangular frame and a panel supported thereon, the platform having cutout, notched corners defining openings between two or more adjacently located floor modules, and plastic plugs which seat within these openings to interconnect the adjacently located modular units via downwardly depending prongs which engage the supporting frames of the modular units. Carpet pieces are secured separately to the top surfaces of the panels and to the plugs, to provide an aesthetic and comfortable surface for the floor. The plug is integrally formed, preferably of injection molded thermoplastic, to provide a unitary one piece plug for interconnecting the adjacently located floor modules.

Abstract: A landscaping block system including one or more landscaping blocks having anchoring means for embedding the blocks in a substrate. The blocks each have a groove on the bottom, so that when the blocks are aligned end to end in a substrate, the grooves define a continuous conduit.

Abstract: An impact-absorbing flooring system of modular design is described, with applications in areas of nursing homes where there is a high risk of injury due to falls or in sports facilities for high impact events such as gymnastics and tumbling or with other uses. For example, the invention could also take the form of a safety mat or coaming for use around slippery areas like bathtubs, showers or the edge of swimming pools. The system provides a significant reduction in peak impact load during falls, yet retains a substantially non-compliant configuration during normal motions. The flooring system comprises a series of sections or tiles which can be interconnected to cover the high-risk area. Each tile is composed of a plurality of elastomeric columns sandwiched between two urethane sheets. The top sheet and projecting columns are preferably molded as one piece and then the lower sheet is secured about the free ends of the columns to produce a secure attachment and an integrated unit.

Abstract: An expansion joint retainer is used in fastening a flexible elastomeric seal or strip seal to a structural slab. The retainer has a main body made from a first material. The main body has a thickness selected to permit emplacement of the retainer on the edge of a slab whereby the upper surface of the main body is substantially coplanar with or beneath the upper traffic bearing surface of the slab. The retainer includes a retaining element adjacent the lower surface of the main body. The retaining element is made of a second material serving to provide the retainer with sufficient rigidity to be bolted to a slab. The invention is characterized in that the second material is a thermoplastic elastomer.

Abstract: The invention relates to a safety tile, including a tile body of rigid material, such as concrete, and a cover plate provided with an enclosing edge and being of an elastically flexible material, such as rubber. The cover plate has ribs integrally formed therewith uniformly distributed at its bottom side directed towards the tile body, of which the bottom ends hang down and rest on the upper surface of the tile body. The ribs extend diagonally across the bottom side of the plate with main diagonals extending between two opposite corners of the cover plate. Near each of the two opposite corners, each main diagonal rib has a widened bearing face which forms the basis of a locking part connected therewith, which locking parts have been locked in the tile body.

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: Device prohibiting access of alien vehicles to given zones, while allowing recognized, identified and authorized vehicles to enter, consisting of at least one re-usable modular element with instantaneous positioning which requires no specific installation, comprising an access-control barrier (13) activated by the help of the lever (14) of a release mechanism (9) (11) (17) (18), operable by a lever (11) and by a stop-barrier (2), which is released by the action of a skid (16) on a skid (9) pushing a bolt (7), the whole being incorporated in a frame (1).

Abstract: A mat for providing a stabilized surface on sand or other loose soil and adapted to support a person stationed thereon, such as a person in a wheelchair. The mat includes a skeletal layer fashioned in the form of a grid, which is stiff and inflexible, except that it may be rolled-up. The skeletal layer is adhesively sandwiched between two blankets geotextile fabrics which remain relatively cool when exposed to sunshine. The mat also includes a plurality of spaced tubular rings, each having a tubular end glued to one of the geotextile blankets. A method of fabricating the mat is also disclosed.

Abstract: A modular railway crossing structure supports a pair of rails. The modular railway crossing includes multiple base members, which are aligned axially along the length of the rails. The rails are encased by rubber boot elements. Each base member has a central recess formed in the upper surface. A pair of planar central rail locking members fit in the recess. The base members and the central rail locking members interrelate to support the rails.

Abstract: A safety panel assembly for covering the walls or floors of areas such as playgrounds and the like is formed with a rigid planar carrier element having a spaced resilient covering element mounted thereto. The carrier element has recesses into which mounting projections integrally formed on the covering element extend. A hardened binder material locks the mounting projections in place and a plurality of spacer elements or ribs abut the rigid carrier element to provide hollow spacing between the elements and to insure a cover panel assembly exhibiting sufficient resiliency upon impact.