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US 12,746,454 B2Granted
Sports field and methods for forming and operating the same
AssigneeDutchblue World B.V.
InventorCarolus Hermanus Van Raam
Life of this patent
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AssigneeDutchblue World B.V.
InventorCarolus Hermanus Van Raam
Estimating the term…
Sports field (1), comprising abase structure (10) and a cover (13), wherein the cover is at least partly permeable to fluid, especially water, wherein the cover comprises a top layer (41) and a shock absorbing layer (38A) provided between the top layer and the base structure, wherein the shock absorbing layer has upper (38T) and lower (38L) surfaces and comprises manmade vitreous fibres (MMVF) bonded by a cured binder, wherein the shock absorbing layer has a thickness (D38) between the upper and lower surfaces of between 12 and 40 mm and has a density of between 175 kg/m3 and 300 kg/m3, wherein the shock absorbing layer is hydrophilic, such that it can absorb a volume of water of between at least 20 to 95% of the volume of the shock absorbing layer. A method for forming a sports field and a method for operating a sports field are also disclosed.
A sports field, comprising a base structure and a cover, wherein the cover is at least partly permeable to at least water, wherein the cover comprises a top layer and a shock absorbing layer provided between the top layer and the base structure, wherein the shock absorbing layer has an upper surface and a lower surface and comprises at least one of man made vitreous fibres (MMVF) bonded by a cured binder or a cell foam, wherein the shock absorbing layer has a thickness between the upper surface and the lower surface of between 12 and 40 mm and has a density of between 175 kg/m3 and 300 kg/m3, wherein the shock absorbing layer is hydrophilic, such that it can absorb a volume of water of between at least 20 to 95% of the volume of the shock absorbing layer.
A method for forming a sports field, wherein a base structure is formed on which a shock absorbing layer is provided, on top of which shock absorbing layer a top layer forming a sports layer is placed or formed, wherein as a shock absorbing layer an integral layer or combination of layers is used having a density of between 175 kg/m3 and 350 kg/m3, and a thickness between 12 and 40 mm is used, wherein the shock absorbing layer or combination of layers is hydrophilic.
A method for operating a sports field having a sports layer provided on top of a shock absorbing layer, wherein during use the water content of the shock absorbing layer is regulated between 20% and at least 95% in volume of the volume of the shock absorbing layer.
Dependencies are inferred from the claim text.