Resources Contact Us Home
Ready lock ring binder mechanism

Image Number 19 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
Semiconductor device and manufacturing method thereof
Uni-directional transient voltage suppressor (TVS)
Systems and methods for optimizing capital structure of a financial institution
Display apparatus, a method for a display control, and program
Image forming device
Toy track intersection component
  Randomly Featured Patents
2-oxadiazolechromone derivatives
Intraocular lens for restoring accommodation and allows adjustment of optical power
Ultrasound diagnosis apparatus
Processor assigning data to hardware partition based on selectable hash of data address
Processing system utilizing a multi-purpose film handling cartridge
Treatment of disease states induced by oxidative stress
Icon for a portion of a display screen
Method and device for speech analysis
Method and apparatus for preventing misuse of a group key in a wireless network
Boot mounted shifting and breaking device