Synthetic turf playing surface with resilient top-dressing
OwnerFrederick T. Haas, Jr.inventor
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Abstract
A playing surface for athletic games comprising a stable subsurface, a pile fabric resembling grass and a compacted top-dressing comprising a mixture of from 25 to 95 volume percent resilient particles and from 5 to 75 volume percent fine sand. The inventive surface is particularly suited for use as a playing field for contact sports such as football, rugby, soccer, field hockey, baseball and the like where players may fall or be knocked down on the playing surface. Preferred resilient materials include cork granules, natural or synthetic rubber particles, synthetic polymer beads and synthetic polymer foam particles.
Claims29
A playing surface for athletic games comprising:
- (a) a firm, stable subsurface;
- (b) a pile fabric having a flexible backing and normally upstanding pile elements resembling grass;
- the length of said pile elements being substantially uniform and lying in the range from 1/2 to 2 inches;
- and
- (c) a compacted top-dressing layer comprising a mixture of from 25 to 95 volume percent resilient particles and from 5 to 75 volume percent fine sand interspersed among the pile elements and on the backing to a substantially uniform depth at least 1/2 the length of the pile elements.
Dependencies are inferred from the claim text.