Adaptive pneumatic seat and backrest cushions for vehicles and airplanes
US7052090B2 · kind B2 · utility
3Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Jan 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/03
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adaptive seat and backrest cushion, divided into a seat cushion and a backrest cushion of essentially the same construction. A number of webs are introduced between an upper skin and a lower skin of an airtight shell by welding or gluing. The first webs are of simple construction, the second webs are of double construction each with a cavity between the webs. The space within the shell is filled with compressed air at a pressure p1, the cavities can be pressurised as required with compressed air at a pressure of p2, where p2>p1. The thickness as well as the softness of the seat or backrest cushion can thus be altered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.