Method of making a seat cushion base
US5397517A · kind A · utility
19Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1026
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lightweight contoured base for a seat cushion is produced by first forming a shaped lightweight foam core with a void corresponding to the ischial tuberosities of a user and then forming a sandwich assembly by placing a layer of foam or foamable material against both upper and lower surfaces of the shaped lightweight foam core to form a sandwich assembly. The sandwich assembly is then molded to produce the finished contoured base for a seat cushion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.