Impregnated cloth
US8343609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2010 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/413
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A knitted spacer fabric having a tightly knitted bottom layer, a more loosely knitted upper layer and linking fibres extending across the space between the lower and upper faces. Settable material, e.g. cement, is introduced into the space between the upper and lower faces and can be caused to set by the addition of a liquid, e.g. water. Until set, the fabric is flexible and can be shaped but after the material in space has set, the fabric is rigid and can be used as a structural element in a wide range of situations. The bottom layer has an extension that extends beyond the upper face and is connected to the upper face by elastic connecting fibres that draw the extension towards the other face, thereby at least partly closing the space at the edge of the cloth and preventing the settable material from spilling out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.