Laminated visco-elastic support
US6541094B1 · kind B1 · utility
65Cited by
20References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Nov 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/647
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminated support for pressure-relief comprising an upper layer of visco-elastic foam, a middle layer of visco-elastic foam having a greater hardness, and a bottom layer of highly resilient polyurethane foam. These layers are sandwiched between two layers of reticulated filter polyurethane foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.