Chair back with lumbar and pelvic supports
US9538849B2 · kind B2 · utility
6Cited by
85References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Sep 29, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/462
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An office chair is provided having a back assembly which is configured to provide supplemental support to the back of a chair occupant in addition to the support provided by the primary support surface of the chair back. The chair back includes a lumbar support unit having a lumbar support pad that includes a plurality of support rings disposed one inside of the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.