Mechanical chair
US5405188A · kind A · utility
34Cited by
3References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Oct 21, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G15/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases as the back is moved to an upright orientation and deceases as the back is moved to a reclined orientation. Linkage between the back and seat assembly may include a plate connected to rotate on an axis as the back is pivoted, and eccentrically connected to the travelling seat assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.