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US 2006/0141231 A1Published application
Underpad system
OwnerAlain Lemieuxinventor
Life of this patent
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Abstract
This invention relates to an improved underpad system to be used underneath many types of surface coverings, such as synthetic turf, carpet, coating, tiles, etc. The system consists of three layers of material made from various components with different densities and thickness which provides a real absorption impact by a compression movement of the sandwiched layers.
Claims9
An underpad system with enhanced impact and shock absorbency properties which comprises:
- a top layer made of a first compressible material having a first thickness and a first density;
- a middle layer made of a second compressible material having a second thickness and a second density;
- a bottom layer made of a third compressible material having a third thickness and a third density;
- wherein said middle layer is compressed before said top layer and said bottom layer for low impact and shocks, and the said first thickness and the said third thickness remains the same.
1 more element
An underpad system with enhanced impact and shock absorbency properties which comprises:
- a top layer made of extended polypropylene having a first thickness and a first density;
- a middle layer made of polyurethane foam having a second thickness and a second density;
- a bottom layer made of extended polypropylene having a third thickness and a third density.
Dependencies are inferred from the claim text.