Innerspring assembly with edge reinforcement
US7979935B2 · kind B2 · utility
8Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Jul 25, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/064
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An innerspring assembly includes a plurality of first springs arranged side-by-side in axis-parallel relationship and wound in the form of a helix. Several first springs which are arranged behind one another in a row define a spring strand. An edge reinforcement is formed by second springs placed on at least two opposite borders of the innerspring assembly, with each second spring being connected with two first springs of an adjacent spring strand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.