Spring assembly
US4595180A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1984 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Oct 5, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C23/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A spring assembly wherein there are a plurality of spring members disposed in transversely and longitudinally-spaced relation between a rectangular base frame and a rectangular grid frame and secured thereto and wherein certain of the springs are positioned at the corners and so configured that pressure brought to bear on the grid frame bends the spring units outwardly relative to the corners to impart tension to the border wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.