Carpet tiles with edges projections and grooves

Details Carpet tiles with edges projections and grooves Carpet tiles with edges projections and grooves

1989-05-11

1990-07-17

McCamish, Marion C.

Stock material or miscellaneous articles

Two dimensionally sectional layer

Next to unitary web or sheet of equal or greater extent

428 51, 428 82, 428 88, B32B 310

Patent

active

049420720

ABSTRACT:
A carpet includes at least two sets of square carpet tiles of different sizes. The carpet tiles of the carpet have a plurality of trapezoidal projections and complementary grooves so that the tiles may be interlocked with each other. One set of the carpet tiles has edges which are longer than those of the other set each of which is integrally proportional to an edge of the other set of carpet tiles. A special trapezoidal tooth and a complementary notch adjacent the tooth are provided at each longer edge of the carpet tiles and equally spaced from each other by one unit length, the unit length equalling the length of the edge of a tile from the other set of carpet tiles.

REFERENCES:
patent: 3120083 (1964-02-01), Dahlberg et al.
patent: 3654051 (1972-04-01), Bieler

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