Mattress cushion with multiple zones
US5230110A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Jul 20, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/148
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress overlay cushion including three distinct zone sections with the intermediate zone section extending a greater distance longitudinally than the other two zone sections. Each zone section has a convoluted surface with a protuberance arrangement distinct from that of the others. A first and a second zone section feature a plurality of rounded peaks. Rounded peaks in the first zone are arranged in a plurality of transversely extending rows of individual peak members separated by valleys with the rounded peaks in each transversely extending row being offset transversely with respect to a longitudinally adjacent row. A plurality of peak members in the second zone are arranged in sets with each of the peak members within a particular set are joined at a base portion in a region above a maximum depth of the valleys such that adjoined peak members extend diagonally within each set. Thus, valleys are transversely positioned between adjacent sets of diagonally extending adjoined peak members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.