Resources Contact Us Home
Positive lock ring binder mechanism

Image Number 19 for United States Patent #7597498.

A ring binder mechanism includes a housing having longitudinal ends and a top surface, hinge plates supported by the housing for pivoting motion about a pivot axis relative to the housing, and rings for holding loose-leaf pages. Each ring includes first and second ring members. The first ring member is movable relative to the second ring member between closed and opened positions of the rings. A control structure is supported by the housing and movable relative to the housing. The control structure produces the pivoting motion of the hinge plates in at least one direction. The control structure has an actuating lever pivotally connected to the housing and disposed generally above the top surface of the housing. The actuating lever is formed for receiving a fastener therethrough for connecting the housing to a cover.

  Recently Added Patents
Decoding and presentation time stamps for MPEG-4 advanced video coding
Gyroscope utilizing torsional springs and optical sensing
Methods and apparatus for monitoring communication through identification of priority-ranked keywords
Liquid-level sensor
Haworthia plant named `CAPETOWN`
3D IC method and device
Systems and methods for determining muscle force through dynamic gain optimization of a muscle PID controller for designing a replacement prosthetic joint
  Randomly Featured Patents
Varactor diode alternative circuit
Method of marking an area with a dry foamable composition
Stabilizer pad for earthmoving apparatus
Mercury wettable contact assembly
Exercise apparatus including an improved upper body exercise device
High pressure processing method and apparatus
Initiating element for non-primary explosive detonators
Portable base station device
Method for sensing stickies
Product and method for the processing of precursors for lithium phosphate active materials