Mat for reducing the disturbance of particulate matter and liquids by wind
US7972984B2 · kind B2 · utility
4Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2004 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Feb 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/488
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A mat for reducing the disturbance of particulate matter by wind, has a first layer of coarse mesh material, and a second layer of coarse mesh material. The first layer is held in a substantially fixed position relative to the second layer. The mat is particularly suitable for use as a helicopter landing mat, in conditions where dust, sand, snow, water or other particles or liquids might otherwise cause a disturbance resulting in loss of visibility, damage or wear to parts of the helicopter, and injury or damage to nearby people or equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.