Geometrical instruments – Gauge – Flooring – floor or wall covering – or molding
Patent
1993-03-02
1994-11-15
Fulton, Christopher W.
Geometrical instruments
Gauge
Flooring, floor or wall covering, or molding
33DIG20, 52392, 52DIG1, E04G 2116
Patent
active
053635604
ABSTRACT:
In the thin set laying of stone or ceramic tile, tiles are set by floating them over a uniformly applied screed of adhesive applied to a level substrate. In this invention combination spacing/levelling devices are used to equally space the corners of adjacent tiles and to maintain them at an equal elevation over the adhesive and substrate. The spacer/leveller device may comprise spacing fins and a guide for maintaining the corner of adjacent tiles flush while mortar is setting. The device works as a guide to facilitate level installation with uniform grout joints and it becomes part of the permanent fabric of the installation. Tiles are temporally supported by spacer/levellers at each corner (while adhesive is drying) and by virtue of the spacer/leveller design they are automatically flush to each other with equal joint spaces separating them. The invention substantially reduces the dependence on the skill of the tile layer to space tiles equally and set them on the same horizontal plane.
REFERENCES:
patent: 2852932 (1958-09-01), Cable
patent: 3234692 (1966-02-01), Bierlich
patent: 3501877 (1970-03-01), White
patent: 4091587 (1978-05-01), Depka
patent: 4953341 (1990-09-01), Joos
patent: 5259161 (1993-11-01), Carter
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