Spring assembly for seating and bedding
US5184809A · kind A · utility
11Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Jul 15, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C23/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A spring assembly has a plurality of rows of springs interconnected in chain-like fashion, each spring including upper and lower runs and an intermediate run interconnecting the upper and lower runs. The upper and lower runs each include a coil on one end and a hook on the opposite end hooked about a coil of an adjacent spring. A plurality of runner wires extend transversely of the upper runs where they are connected thereto by a plurality of helical wires respectively received about the upper runs. The upper runs are in planes above the coils of the upper runs providing recesses above the coils receiving the helical wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.