Innerspring assembly for furniture seats and backs
US4480823A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/07
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An innerspring assembly for furniture seats and backs comprising spaced, parallel, substantially rectangular top and bottom grids and tapered helical coils interposed between the grids and secured thereto, the top grid comprising pairs of spaced, parallel anchoring wires which define longitudinally and transversely-spaced seats for receiving the top loops of the coils and the bottom grid comprising anchoring crossing wires which intersect and define seats vertically below the centers of the seats of the top grid for receiving the bottom loops and wherein diametrically-opposed portions of the top and bottom loops overlie the wires of the seats and diametrically-opposed portions of the top and bottom loops at right angles thereto underlie the wires of the seats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.