Flanged cover with prongs for a ring binder assembly
US6030139A · kind A · utility
6Cited by
34References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42F13/0066
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A system for rivetless attachment of a ring binder assembly to a cover wherein an attachment portion including one or more prongs adapted to imbeddingly engage a cover substrate and a surface adapted to mate in facing relation with a surface of the cover is formed unitary with a confining spring cover plate of the ring binder assembly, the ring binder assembly being attached to the cover by forcing the attachment portion against it with sufficient force to drive the prongs into the substrate and hold the surface of the attachment portion firmly against the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.