Sound-damping mat, especially for a ballast bed
US5060856A · kind A · utility
9Cited by
9References
17Claims
0Family size
Inventor
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B2204/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The upper part of an elastomeric mat acting as a sound-damping element below a bed of ballast in a track support assembly is provided with a single layer of a knit, preferably a multiaxial warp knit fabric which, in part, protects the body of the mat against deterioration by penetration of the stones therethrough and provides high tensile strength in substantially all directions for the mat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.