Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1993-04-05
1995-03-14
Nakarani, D. S.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428143, 428147, 428327, 428493, B32B 516
Patent
active
053976207
ABSTRACT:
A structure and related method for forming a surface on which sports activities occur. The disclosed structure uses three basic layers to form the surface on top of a prepared substrate. The first layer is comprised of a plurality of sublayers bound together by adhesive coatings, the first of which requires deposition of resilient particles in the 3 to 6 millimeter size range. Several subsequent sublayers include smaller-sized particles which, after deposition and spreading, result in a relatively smooth and resilient latex-bound base mat. The second layer provides a cushion coating, while a slightly textured decorative finish coating results from application of the third and final top layer. A method for forming these three layers is also disclosed which method specifies both the sizes of particles and the spread rate for particles and adhesive material for each of the sublayers in the first layer. The disclosed surface is particularly durable and provides a playing area for sports activities that is more impact-absorbing than other similar artificial sports surfaces.
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Le H. Thi
Nakarani D. S.
Root Thomas D.
Rosden Peter E.
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