Resources Contact Us Home
Ready lock ring binder mechanism

Image Number 13 for United States Patent #7891901.

A ring binder mechanism that retains loose-leaf pages. The mechanism includes a housing and hinge plates supported by the housing for pivoting about a pivot axis relative to the housing. The mechanism further includes rings that hold the loose-leaf pages. Each ring includes two ring members. A first ring member is mounted on a first hinge plate and can move therewith relative to a second ring member. In a closed position, the two ring members form a substantially continuous, closed loop for allowing loose-leaf pages retained by the rings to be moved along the rings from one ring member to the other. In an open position, the two ring members form a discontinuous, open loop for adding or removing loose-leaf pages from the rings. Additionally the mechanism comprises an actuator that is pivotally mounted on the housing and can move relative to the housing for controlling the pivoting motion of the hinge plates and closing the ring members. A travel bar has a connection to the actuator for blocking the hinge plate's pivoting motion when the ring members are closed. The connection between the travel bar and actuator permits the actuator to move in a range without actuating corresponding movement of the travel bar.

  Recently Added Patents
Opioid-ketamine and norketamine codrug combinations for pain management
Electronic device package and fabrication method thereof
Systems and methods for processing telephone calls
Wireless control kit for camera
Methods and systems providing desktop search capability to software application
Touchscreen with Z-velocity enhancement
Electronic system auto-mute control circuit and control method thereof
  Randomly Featured Patents
Method for heat treatment of metal workpieces as well as a heat-treated workpiece
Thin-film magnetic circuit board and magnetic head using the same
Device for making preselected composite designs
Power delivery and connection circuit for an automotive vehicle
Earthquake-proof mounting support for control-rod drives of nuclear reactors
Route restrictions for deadlock free routing with increased bandwidth in a multi-stage cross point packet switch
Combined bearing
Process to remove micotoxins from a load of green coffee
N-sulfonylurea apoptosis promoters
Supercharged internal combustion engine with capability for mechanical step-up drive of an exhaust gas turbocharger