Resources Contact Us Home
Ring binder mechanism

Image Number 11 for United States Patent #8043018.

A ring binder mechanism has a housing supporting first and second hinge plates and rings, each ring including first and second ring members. The first ring member is mounted one of the hinge plates and moveable with the hinge plate relative to the second ring member between closed and open positions. An actuating lever for opening the rings is mounted on a pin secured to the housing. Pivoting of the actuator moves a travel bar relative to the hinge plates. A blocking element is secured to the travel bar for conjoint movement therewith between a locking position in which the blocking element blocks pivoting movement of the hinge plates to open the rings and a non-locking position in which the blocking element does not block pivoting movement of the hinge plates to open the rings. A torsion spring on the pin biases the actuating lever to its closed position.

  Recently Added Patents
Scalable header extension
Bezel-less electronic display
Link establishment in a wireless communication environment
System and method for order placement in an electronic trading environment
Crowd control barrier II
Visual universal decryption apparatus and methods
  Randomly Featured Patents
Protective case
Hedge trimmer
Method for R-F ablation
Air conditioner
Multiple patterning using patternable low-k dielectric materials
Golf swing training device
Bicyclic fibrinogen antagonists
Battery cover
Safety saw chain
Broadhead with reversible offset blades