Pressure reduction foam mattress support
US5083335A · kind A · utility
59Cited by
14References
9Claims
0Family size
Inventors
Key dates
| Filing date | Mar 11, 1991 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Mar 11, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/144
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A foam mattress support having a top, intermediate and bottom layer. The intermediate layer includes a plurality of ribs having a cross-sectional area increasing in the direction perpendicular to the pad, the height of the ribs being at least as great as one-third of the thickness of the pad, and the cross-sectional area of the ribs at the head and foot end being substantially equal but being less than the cross-sectional area of the ribs between the head and foot ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.