Back to results
US 4,349,290 AGranted
Loose leaf binder
OwnerClaudio B. Cardelliniinventor
Life of this patent
Estimating the term…
Abstract
A loose leaf binder is formed from two main parts, which have cooperating half-rings and are interconnected by wire links. The cooperating half-rings of the binder have a mating locking mechanism at their free ends. The binder's opening is achieved through relative displacement, in longitudinal and transverse directions, of its main parts. A movable clip, placed at an end of the binder, prevents the relative displacement of the main parts when the binder is closed.
Claims4
A loose leaf binder comprising:
- a pair of elongated strips each having a plurality of half-rings at corresponding spaced locations along an edge thereof;
- means provided at the ends of said half-rings to permit a half-ring associated with one strip to interlock with a half-ring associated with the other strip to form a full ring when the rings are positioned in juxtaposition;
- a plurality of linking rings hingedly interconnecting said strips, each of said linking rings extending through a separate pair of parallel slots provided in one of said strips, said slots being inclined with respect to the longitudinal axes of said strips whereby during relative longitudinal movement between the strips, movement of the linking rings within said slots also displaces said strips transversely with respect to one another to release by longitudinal and elevational displacement the half-rings of one strip from interlocking relationship with the half loops of the other strip.
Dependencies are inferred from the claim text.