Multi-zone support
US6202239A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Feb 25, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C31/123
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A multi-zone support generally includes a top foam layer, a middle foam layer located beneath the top foam layer, and a bottom foam layer located beneath the middle foam layer. The resistance to a compressing force generally increases per layer from top to bottom. The top layer has a top and bottom planar surface. The middle layer incorporates five zones of support. Three of the zones include a sinusoidal surface for supporting the head/shoulder, hips, and legs/feet while the other two zones include a sold surface for supporting the back and thighs. The bottom surface includes a number of channels, the channels help to carry heat and moisture away from the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.