Lay-flat flooring slab

Details Lay-flat flooring slab Lay-flat flooring slab

1978-06-23

1979-10-23

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428 33, 428 95, 428143, 428155, 428215, 428315, 428327, B32B 326

Patent

active

041721683

ABSTRACT:
A flat floor tile or slab, especially for use outdoors, comprising a bottom layer of a closed-cell soft foam having openings geometrically distributed over its area and, bonded thereto, a water-permeable covering layer of resiliently cemented-together granules. Advantageously the tile is provided on its periphery with projections and corresponding recesses, whereby said slab can be interlocked with adjacent slabs. The openings in the tile are formed by slits of about 25 mm arranged in parallel straight lines, slits in each line being spaced about 6 mm apart and adjacent lines being spaced less than about 8 mm from one another, the bottom layer comprising a polyethylene foam of a density of about 90 Kp/m.sup.3 and a thickness of about 10 mm, the covering layer being about 7 mm thick and comprising irregularly structured granules of an average diameter of about 1 to 5 mm and comprising a mixture of mineral particles and rubber particles.

REFERENCES:
patent: 3511743 (1970-05-01), Rach
patent: 3616029 (1971-10-01), Lerman
patent: 3619343 (1971-11-01), Freeman
patent: 3679539 (1972-07-01), Gossens et al.
patent: 3682739 (1972-08-01), Tesch et al.
patent: 3804699 (1974-04-01), Johnson
patent: 3857749 (1974-12-01), Yoshida

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