Pocketed spring assembly comprising strings of springs of different heights and enhanced ventilation
US9332856B2 · kind B2 · utility
10Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Aug 18, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/062
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pocketed spring assembly comprises a plurality of parallel strings of individually pocketed springs of different heights. Each string is joined to an adjacent string. Each string has first and second opposed plies of fabric and a plurality of pockets formed along a length of the string by transverse seams joining the plies. An upper end of each transverse seam is below the upper surface of the string so as to partially separate adjacent pockets within a string of springs when the spring is relaxed. The strings of springs have ventilation openings to increase airflow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.