Ring binder mechanism
US8414212B2 · kind B2 · utility
3Cited by
149References
30Claims
0Family size
Inventors
Key dates
| Filing date | Dec 20, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Dec 20, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42F13/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A ring binder mechanism includes an elongate plate having a longitudinal axis. Hinge plates are supported by the plate for pivoting relative to the elongate plate. Ring members are mounted on the hinge plates and moveable between a closed position and an open position. A control structure is supported by the elongate plate and controllably pivots the hinge plates to move the ring members between the closed and open positions. The control structure has a travel bar connected to the hinge plates for moving the hinge plates between the closed and open positions. A spring biases the travel bar toward the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.