Synchrotilt chair
US4979778A · kind A · utility
115Cited by
38References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Jan 17, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/03255
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A chair includes a support base, a back and a seat. A tilt mechanism connects the back to the base permitting the back to move from an upright position to a reclined position. A forward portion of the seat is connected to the base through a double pivot. A rearward portion of the seat is connected to the back through a single pivot. As the back tilts to its reclined position, the rearward portion of the seat moves rearwardly and downwardly and the forward portion of the seat moves rearwardly and downwardly lowering overall seat height and eliminating leg lift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.