Coil spring construction
US4485506A · kind A · utility
66Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Apr 7, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/064
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A coil spring construction is provided for incorporation within a mattress or cushion. The construction includes a plurality of independently mounted pocketed coil springs. Resilient stabilizers are provided between the springs to maintain their axial positions. The spring pockets are formed by the sealing of first and second sheets to each other in a substantially circular configuration about the axis of each spring. Spring height is determined by the inside diameter of the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.