Pocket spring core and method for producing the same
US11653770B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2018 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB68G9/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pocket spring core as well as a method for producing a pocket spring core for use in the manufacture of mattresses or furniture upholstery. The pocket spring core has a plurality of springs, a number of which lie in a row one behind the other in respective flexible pockets, forming a bank of springs, and a number of adjacent banks of spring, which together form a supporting surface, are interconnected. The springs of at least one region of the supporting surface have different springing characteristics from the springs of the neighboring regions. At least one part of the individual banks of springs consists of bank portions with differing spring characteristics, the pocketed springs of each bank portion are identical, at least some of the neighboring portions of adjacent banks of springs are of different lengths and the neighboring portions of adjacent banks of springs are interconnected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.