Undertaking
Patent
1989-03-30
1990-03-13
Chilcot, Jr., Richard E.
Undertaking
52 6, 273DIG13, 47 17, E04H 310
Patent
active
049077937
ABSTRACT:
In order to provide versatile use for a surface that is provided with a covering of grass or the like, a plurality of bases are inserted in the subsoil of the surface below the grass covering for the support of a supporting structure that is provided with a floor covering that can be walked or driven upon. When the grass covering is used, the bases are covered by inserts that are adapted to be placed in the grass covering. When the surface is to be used for a different purpose, the supporting structure is supported on the bases in such a way as to be spaced from the grass covering. Illuminating means that are mounted on the supporting structure and that produce effects for photo-biological processes are provided for irradiating the grass covering, so that despite the covering, growth is not inhibited. Thus, the surface has a versatile use without having to worry about damage to the grass covering. Conversion is effected in a short period of time in an economical manner.
REFERENCES:
patent: 3258884 (1966-07-01), Wenger
patent: 3266800 (1966-08-01), Yee
patent: 3433137 (1969-03-01), Henderson
patent: 3531898 (1970-10-01), Facemire
patent: 3951406 (1976-04-01), Rock
patent: 3968606 (1976-07-01), Facemire
patent: 4312504 (1982-01-01), Rutledge et al.
patent: 4638604 (1987-01-01), Rogers et al.
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