초록 ▼

Multiple plastic molded squares with means to interlock strips of the same so the entire surface expands and contracts during changes in temperature without creating distortion. The top surfaces are rough and under the top surface there are a plurality of projections for supporting the playing surfa

Multiple plastic molded squares with means to interlock strips of the same so the entire surface expands and contracts during changes in temperature without creating distortion. The top surfaces are rough and under the top surface there are a plurality of projections for supporting the playing surface raised from an underlying base surface.

대표청구항 ▼

A supplementary surface construction comprising a series of rectangular plastic molded one-piece strips, a plurality of apertures in each strip, outstanding interlocking loops integral with each strip arranged along the long side edge thereof, each loop containing a straight edge snap over tooth, ou

A supplementary surface construction comprising a series of rectangular plastic molded one-piece strips, a plurality of apertures in each strip, outstanding interlocking loops integral with each strip arranged along the long side edge thereof, each loop containing a straight edge snap over tooth, outstanding free-ended projections at the two opposite edges from said loops, each projection including a straight side snap over tooth complementary to and for cooperation with the teeth in the loops of the next succeeding strip, and a interlocking snap over loop integral with said strip at one end thereof for interlocking engagement with a projection on an extending strip, a plurality of supporting pins depending from the lower portion of said surface construction to support the same in elevated condition on a supporting floor or ground surface, said loops extending upwardly from the supporting floor only partially to the top surface of the construction and the projections extending substantially the full height of the construction, the loops extending outwardly laterally of the construction, the projections lying wholly within the area of the construction, each of said plastic one-piece molded strips comprising a plurality of generally rigid pieces serially connected in said strip, and flexible means for interconnecting adjacent of said generally rigid pieces in said strip and providing flexibility to said strip.