Athletic playing surface

Details Athletic playing surface Athletic playing surface

A - Human Necessities

63

C

273/5

A63C 19/10 (2006.01) E01C 13/04 (2006.01) E01C 13/08 (2006.01)

Patent

CA 1141793

ABSTRACT OF THE DISCLOSURE An extended athletic playing surface that increases running speed of a athlete performing on the surface and reduces the likelihood of injury to the athlete has a multi-layer construction. The athlete's foot impacts on an upper surface of a sheet material that has a low mass per unit area and is stiffly resilient. The upper surface is supported on either discrete "bumper pads" of a resilient material, or preferably a combination of horizontal, spaced apart supports and bumper pads. The composite structure rests on a conventional surface such as a concrete base. The composite surface is characterized by a low effective vertical mass and a composite vertical compliance that is extremely large in comparison to any comparable known athletic surface. The surface also has a high effective hori- zontal mass and a low horizontal compliance. In the preferred form, this composite surface is also characterized by a mechani- cal response that is substantially indepentent of the point of the impact on the surface, independent of the area of the foot contact, and independent of the presence of other athletes on the surface.

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