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
Illumination unit for a direct-view display
Ink, ink jet recording method, ink cartridge, and ink jet recording apparatus
Methods and systems to reduce a number of simulations in a timing analysis
Blow moulding machine with compressed air recycling
Power consumption management in a MIMO transceiver and method for use therewith
Ultra-wideband communication system and method
Hierarchical binding and lookup of addresses in inter-process communications systems
  Randomly Featured Patents
Door apparatus with release assembly
Shoe sole
Pretreatment system for goethitic bauxites
Lavatory device
Product loading arm storage keeper
Aerodynamic vehicle mirror head
Communication control apparatus, communication terminal apparatus, wireless communication system, and transmitting method
Method of revealing structure for single-crystal superalloys
Negotiable instrument electronic clearance systems and methods
Ether and thiophosphate containing photoconductors