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US 9,869,100 B2Granted
Underlayment for a floor
AssigneeDmx Plastics Limited
InventorSundeepan Sennik
Life of this patent
Estimating the term…
Abstract
An underlayment for a floor includes a dimpled substrate having a generally planar top side, an opposed bottom side, and a plurality of dimples formed therein. Each dimple is bounded by a dimple wall, and includes a dimple opening along the top side. A smoothing layer is bonded beneficial to the top side of the dimpled substrate and overlays and occludes the dimple openings.
Claims17
An underlayment for a floor comprising:
- a) a dimpled substrate comprising a generally planar top side directed, in use, toward a finished flooring product installable upon the top side, and an opposed bottom side having a plurality of dimples projecting therefrom to bear against a base surface, each dimple bounded by a dimple wall, and comprising a dimple opening along the top side;
- and
- b) a smoothing layer bonded to the top side of the dimpled substrate and overlaying and occluding the dimple openings,
- wherein the dimpled substrate includes a first layer bonded to the smoothing layer, and a second layer bonded to the first layer, and wherein the first layer is a plastic structural layer, and the second layer is a foam layer.
1 more element
An underlayment for a floor comprising:
- a) a dimpled substrate comprising a generally planar top side directed, in use, toward a finished flooring product installable upon the top side, and an opposed bottom side having a plurality of dimples projecting therefrom to bear against a base surface, each dimple bounded by a dimple wall, and comprising a dimple opening along the top side;
- and
- b) a smoothing layer bonded to the top side of the dimpled substrate and overlaying and occluding the dimple openings,
- wherein each dimple wall includes a dimple bottom wall opposite the dimple opening and a dimple sidewall extending between the dimple bottom wall and the top side, the dimple sidewalls maintaining an interior height of the dimples of between about 1 mm and about 5 mm, and wherein the smoothing layer is depressible into the dimples to contact an interior surface of the dimple bottom wall.
1 more element
A roll of flooring underlayment comprising:
- a) a dimpled substrate comprising a structural plastic layer bonded to a foam layer, the dimpled substrate having a top side formed by the plastic layer, an opposed bottom side formed by the foam layer, and a plurality of dimples formed therein, each dimple bounded by a dimple wall, and comprising a dimple opening along the top side;
- and
- b) a smoothing layer bonded to the top side of the dimpled substrate and overlaying the dimple openings.
A method of installing a floor on a base surface, the method comprising:
- a) unrolling a roll of flooring underlayment, the flooring underlayment comprising a dimpled substrate having a top side and a bottom side, and a smoothing layer bonded to the top side of the dimpled substrate,
- wherein the dimpled substrate is of a two-layer construction including a structural plastic layer and a foam layer contiguously bonded to one another over respective facing surfaces, and the bottom side of the dimpled substrate includes dimples projecting away from the top side, each dimple comprising a sidewall and a bottom wall of said two-layer construction with the foam layer facing outward of the dimple;
- b) applying the dimpled substrate of the flooring underlayment to the base surface such that the foam layer of the bottom wall of each dimple bears against the base surface;
- and
- c) applying a finished floor product directly to the smoothing layer.
2 more elements
Dependencies are inferred from the claim text.