Athletic playing surface with granular material between pile...

Details Athletic playing surface with granular material between pile... Athletic playing surface with granular material between pile...

A - Human Necessities

63

C

273/6

A63C 19/00 (2006.01) D03D 27/00 (2006.01) D04H 11/00 (2006.01) E01C 13/08 (2006.01)

Patent

CA 1055979

TITLE OF THE INVENTION PLAYING SURFACE FOR ATHLETIC GAMES INVENTOR FREDERICK T. HAAS, JR. ABSTRACT OF THE DISCLOSURE A playing surface for athletic games, such as tennis, comprising a flat, firm subsurface, a pile fabric disposed on the subsurface com- prising a relatively flexible, moisture-impermeable backing and normally generally upstanding pile elements resembling grass, a compacted layer of granular mineral material disposed among the pile elements on the backing to a depth from about 75% to substantially equal to the length of the pile elements, the mineral layer comprising less than 10% clay and further comprising a quantity of moisture retaining material suf- ficient to maintain the moisture content of the mineral layer above about 3% by weight under normal climatic conditions.

265816

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