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US 5,755,513 AGranted
Ring binder
AssigneeWorld Wide Stationary Manufacturing Company Limited
InventorChun Yuen To
Life of this patent
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Abstract
A ring binder is disclosed as being adapted to be secured to a cover by at least one rivet, the ring binder comprising a substantially rigid curved upper plate supporting a pair of pivotable elongate plates to which a plurality of ring members are mounted, and the rivet is engageable directly with the cover and the curved upper plate, and the rivet includes a cylindrical body with an inwardly bent upper end.
Claims14
A ring binder for securing to a base member, the ring binder comprising
- a substantially rigid upper structure supporting a pivotable lower structure;
- a plurality of ring members mounted to said lower structure;
- and
- at least one securing means for securing said ring binder to a base member, each of said at least one securing means comprises
- a post member with an inwardly bent upper end for directly engaging said at least one securing means with said upper structure of said ring binder.
2 more elements
Dependencies are inferred from the claim text.