Pocketed spring comfort layer having at least one foam layer and method of making same
US10973339B2 · kind B2 · utility
3Cited by
46References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2020 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Jul 21, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB68G9/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pocketed spring comfort layer for a bedding or seating product has pockets characterized by the individual mini coil springs of the comfort layer being pocketed with between at least one cushion assembly and a sheet of polypropylene fabric. Each cushion assembly includes at least one foam layer. A segmented seam joins the cushion assembly and the sheet of polypropylene fabric around each of the mini coil springs of the pocketed spring comfort layer. The method of making the pocketed spring comfort layer includes compressing the mini coil springs and creating pockets with a welding horn and an anvil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.