Belted pocketed springs and assemblies thereof
US6131892A · kind A · utility
35Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/064
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed are pocketed upholstery springs in strip form characterized by placement of the closing seam midway between the ends of the springs of the strip, with the marginal flaps of the pocket strip fabric outwardly of the closing seam folded over as a two-ply belt and incorporated into the cross seams which define the pockets about the springs. Adjacent rows of such strips are joined together by tacking through their respective belts at the cross seams to form two-row modules for ease of mattress/cushion assembly, or to form full-size mattress/cushion constructions by joining row upon row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.