Padding layer for multi-layered sports playing field
US8858349B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Oct 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2457
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present document describes a padding layer for a multi-layered sports playing field. Various improvements are proposed for enhancing athlete's safety, surface hardness, water drainage, heat management, ease of assembly/installation, durability/longevity, uniformity, resistance to change in weather according to seasons, and stability. The improvements include: matching (multiple-wise) of spacing between rows of backstitches of the top layer and the drainage channels on top surface of the padding layer; a slit in the external tab portion of the padding layer panel, a slit near the lateral part of the tab or blank portion providing a hinging effect thereto, and/or protrusions at various positions on the tab or blank portions to account for change in size of the padding layer panel; drainage holes within the drainage channels; and various configurations of drainage channels on the bottom surface of the padding layer to improve evacuation of water toward the sides of the playing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.