1983-04-25
1985-02-26
Hafer, Robert A.
Undertaking
273DIG13, 404 35, 428 17, A63C 1900
Patent
active
045014205
ABSTRACT:
A method of constructing a playing surface for sports such as soccer, cricket and tennis is disclosed, comprising the steps of laying one or more flexible water-permeable envelopes containing an unbonded base material comprising sand on a drained or water-permeable surface, and placing a sheet of resilient material on to the envelope. In a preferred embodiment, a second sheet of resilient material having different bounce characteristics from the first is placed on the first sheet, and an artificial turf material is laid on top.
REFERENCES:
patent: 1763782 (1930-06-01), Henderson
patent: 3242509 (1966-03-01), Nissen
patent: 3636577 (1972-01-01), Nissen
patent: 3682476 (1972-08-01), Kempson et al.
patent: 3863387 (1975-02-01), Webster et al.
patent: 4168061 (1979-09-01), Gordon
patent: 4281791 (1981-08-01), Schaaf et al.
Hafer Robert A.
Kramer Arnold W.
Nottingham County Council
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