Abstract: Various embodiments for a drip irrigation system configured to control a temperature of at least a portion of a synthetic playing field are described. A system may include a synthetic surface and a drip irrigation system that provides water to one or more portions of the synthetic surface. The drip irrigation tubes include water outlets positioned relative to the synthetic surface such that synthetic fibers wick moisture from the water outlets. A pump may be fluidly coupled to plurality of irrigation tubes and a controller may be configured to cause the pump to drive fluid through the irrigation tubes at a controlled rate to provide heat management in at least a portion of the synthetic surface.

Abstract: An artificial turf system for installation over a receiving surface that comprises a sheet member made of a flexible material, with the sheet member defining a first surface for interfacing with the receiving surface and a turf simulating surface. The artificial turf system further comprises a plurality of primary yarns made of straight fibers upwardly extending from the second surface of the sheet member, and a plurality of secondary yarns made of textured fibers upwardly extending from the second surface of the sheet material and interspersed within the plurality of primary yarns, wherein the plurality of secondary yarns representing more than 50% in weight of the plurality of primary and secondary yarns together. The primary and secondary yarns therefore simulate together the look and feel of the different blades of grass of natural grass cover.

Abstract: A resilient floor surface for indoor and outdoor, residential, commercial and sporting applications includes a resilient underpad formed of expanded polypropylene product (“EPP”) and suitable for being laid down directly on the ground or other subfloor surface in a floating arrangement not requiring securing to the ground or other subfloor surface, and a floor covering material applied upon the resilient underpad as a covering for the resilient underpad. The surface covering is of the type suitable for floor surfacings, sport playing surfacings and decorative and sports surface coatings, and is selected from hardwood flooring, synthetic rubber and/or plastic flooring tiles and panels, rubber flooring tiles and panels, laminated wood flooring, residential and commercial carpets, crumb rubber surface coatings, EPDM (ethylene-propylene terpolymer) surface coatings, polyurethane surface coatings and any other suitable coatings.

Abstract: A playing field surface for active running and body contact type sports, such as football and the like, is formed of a stabilized, flat base surface covered by an underpad, over which is laid a synthetic pile fiber carpet. A covering of sand-like granules is applied upon the carpet to substantially fill the spaces between the fibers. The underpad is made of reclaimed rubber, sliver-like small particles which are bonded together into a thick, water pervious mat. The lower surface of the underpad is formed with widely and regularly spaced apart, dimple-like indentations and downwardly extending, rounded hills that contact the base surface. The hills are separated by rounded indented ridges which are of a lesser depth than the indentations. Each of the indentations is surrounded by a number of hills and ridges to provide resilient dome-like, interconnected, downwardly open pockets in the bottom surface of the underpad.

Abstract: A synthetic pile carpet athletic game playing surface, such as for golf and the like, is formed with a relatively thick, loosely felted, springy fiber mat laid upon a stabilized base, with the pile carpet laid over the mat. The mat is filled with generally coarse, sand granules to provide a shock absorbent, compact resistant layer. The carpet is also filled with a sand granule layer of substantially the height of its pile fibers, and a flexible water barrier sheet is arranged between the carpet and the upper surface of the mat.

Abstract: A playing field surface is formed of a synthetic fiber carpet, having generally upright pile fibers, upon which is applied a particulate covering. The covering is formed of a lower layer of resilient, rubber-like particles such as crumb rubber, and an upper layer of relatively coarse sand-like particles. A binder material may be used for binding together at least some of the rubber-like particles. The upper layer sand-like particles cooperate with the exposed upper end portions of the fibers to provide a simulated grass-like field surface. The relatively large sand-like particles resist excessive compacting of the covering as well as form a stabilizing cover for the layer of rubber-like particles which provide an inner resiliency to the field surface.

Abstract: A stabilized sand surface for tennis courts is formed of a thick, densely tufted, coarse, synthetic fiber carpet which is covered with a single layer of fine, dry, silica sand. The carpet tufts each comprise numerous, closely packed, resilient, somewhat twisted strands of substantially equal length, which are tufted to a resilient carpet base sheet so that the strands tend to intertwine, but extend generally upright from the sheet. The sand layer covers the carpet and fills the interstices from the base sheet to substantially the full height or a little below the full height of the strands. The sand covering layer is stabilized by the mat-like network formed of the closely packed, intertwined, resilient strands against substantial permanent shifting or wind loss, while being relatively yieldable under impact of the tennis ball to produce a playing surface which simulates the playing quality of a clay-type tennis court surface.