Adjustable chair seat with locking mechanism
US6634711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An adjustable chair seat with a locking mechanism is disclosed. The chair includes a seat pan, a seat plate and a torque limiting fastener. The seat pan and seat plate have openings for receiving the fastener which comprises a cup handle and a threaded insert. The threaded insert is engaged with the seat pan through an opening in the seat pan while the seat plate is sandwiched between the seat pan and the fastener. Once engagement is made, the fastener cannot be disengaged; and once a predetermined resistance is reached the cup handle slips relative to the threaded insert so as to cease the application of torque to the threaded insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.